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How to purchase and exchange your litecoin! (longer read)
This post will show you the best ways to buy litecoins using many different payment methods and exchanges for each method. Before you start, make sure you have a good litecoin wallet to store your LTC. NEVER store your litecoins on a crypto exchange.
Start trading fast; high limits
Easy way for newcomers to get bitcoins
Your capital is at risk.
High liquidity and buying limits
Easy way for newcomers to get bitcoins
“Instant Buy” option available with debit card
Works in almost all countries
Highest limits for buying bitcoins with a credit card
Reliable and trusted broker
Buy Litecoin with Credit Card or Debit Card
Let’s dive into some of the exchanges supporting Litecoin credit card purchases. These exchanges are our favorite ways to buy.
Coinbase is the easiest way to buy litecoins with a credit card. Coinbase is available in the United States, Canada, Europe, UK, Singapore, and Australia. The fees will come out to 3.99% per purchase. Here is a good video that can help walk you through the process of buying on Coinbase, although it’s fairly easy.
Coinmama recently added the ability to buy litecoin directly on the platform. Users from nearly any country in the world can use Coinmama to buy litecoins. Coinmama has some of the highest limits among credit card exchanges.
BitPanda is based in Austria and is a crypto brokerage service. You can buy using a credit card from most European countries.
CEX.io is based in the UK and is one of the oldest crypto exchanges online. CEX.io supports litecoin and its users from nearly anywhere in the world can buy litecoin with credit card on the platform.
Buy Litecoin with Bank Account or Bank Transfer
Coinbase is the easiest way to buy litecoins with a bank account or transfer. Coinbase, like is is for credit cards, is available in the United States, Canada, Europe, UK, Singapore, and Australia. Coinbase is one of primary exchanges used to buy Litecoins. Americans can use ACH transfer (5–7 days wait), and Europeans can use SEPA transfer (1–3 days wait). The fees will come out to 1.49% per purchase.
BitPanda is based in Austria and is a crypto brokerage service. You can buy using SEPA transfer from most European countries. You can also use SOFORT, NETELLER, or GiroPay.
CEX.io also supports litecoin buys via bank account. This is via wire transfer for US citizens, SEPA for Europe, and SWIFT for the rest of the globe.
Binance is now one of the largest if not the largest cryptocurrency exchange in the world. It supports bank and card purchases of Litecoin as well as Litecoin trading pairs with Bitcoin and Etehreum.
Get a Litecoin Wallet
Before we move onto other options: Never store your litecoins on an exchange! Always withdrawal your litecoin to an offline cryptocurrency wallet like the Ledger Nano S or any other wallet that you control. The Ledger Nano S and TREZOR are the best options for secure storage.
Other Methods to Buy Litecoin
If you don’t have a card or want to avoid the high fees, you can use the following methods to buy Litecoin as well. Find out which one works best for you.
Buy Litecoin with PayPal
Unfortunately, there is no easy way to buy Litecoin with PayPal. Other sites will tell you that cex allows for this, but that is no longer the case. You can, however, now use eToro to buy Litecoin, unless you live in the United States. If you live in the US, the only way to buy Litecoin with Paypal is to buy Bitcoin using paypal, and then use the Bitcoins to buy Litecoin. You can easily buy Bitcoin using Paypal on Local Bitcoins. Once you have Bitcoin, you can use an exchange like Coinbase Pro to swap the Bitcoin for Litecoin.
Buy Litecoin with Cash
There is no good way to buy litecoins with cash. LocalBitcoins is the most popular way to buy bitcoins with cash, and it does not have Litecoin support. Other popular cash to Bitcoin exchanges like BitQuick and Wall of Coins also do not support LTC. So you will have to first buy bitcoins with cash then exchange them for LTC using the method described below. The same goes for Bitcoin ATMs. Most do not support Litecoin. So if you want to buy litecoins at a Bitcoin ATM you first have to buy bitcoins and then trade the BTC for litecoins.
Buy Litecoin with Bitcoin
If you already have Bitcoins then it is VERY simple to convert some of your BTC to litecoins. You just need to find an exchange with the LTC/BTC pair, which is most exchanges since LTC/BTC is a very popular pair to trade.
Buy Litecoin with Skrill
BitPanda, mentioned above, also accepts Skrill payments for LTC. The fees will vary and are simply included in your buy price.
Cryptmixer is probably the fastest way to convert BTC to Litecoin. You just enter the amount of LTC you want to buy, and give them a LTC address. Then they will tell you how much BTC to send to their address. Once your BTC is sent, you will have LTC delivered to your wallet very shortly after.
Buy Litecoin with Ethereum
Ethereum has experienced a massive price rise. Nearly a year ago it was $10, and now at over $500, many want to move some of their ETH gains into other coins like Litecoin. Litecoin has very good liquidity, and is very popular among traders especially in China. So this guide is going to show you how to buy litecoins with Ethereum. We will show some of the best exchanges you can use, and the pros and cons of using different types of exchanges over the other.
Cryptmixer is one of the most unique exchanges, and also one of the fastest ways to convert your ETH to LTC. With Cryptmixer you do not even need to store your money with the exchange, meaning you are at very little risk of getting your funds stolen. With Cryptmixer you simply specify the amount of LTC you want to buy, and specific the address to where your litecoins should be sent and within 30 minutes you will have LTC delivered to your wallet.
Poloniex is the world’s largest altcoin exchange. However, there is a huge downside to using Poloniex to convert your ETH to LTC: Poloniex does not have a LTC/ETH market, meaning you have to first trade your ETH to BTC, and then trade your BTC for LTC. While this method works, you will have to make multiple trades and also pay fees twice.
Shapeshift is basically the same as Cryptmixer, and was actually the first company to come up with the concept of an exchange that does not hold your own funds.
Frequently Asked Questions About Buying Litecoin
Many of you may still have lots of questions about how to buy Litecoin. Odds are we have answered almost any question you could think of below. We will aim to answer many of the most common questions relating to buying Litecoin.
Why are there limited options to buying Litecoin using other altcoins?
The issue in all crypto markets is liquidity. As the space gets bigger, the liquidity also gets better. But as of now, the only VERY liquid cryptocurrency is Bitcoin. So exchanging two altcoins between each other is often harder than if BTC was involved on one side of the trade.
How much is a Litecoin worth?
Like all currencies, the value of Litecoin changes every second. The value of Litecoin also depends on the country you are in and the exchange you are trading on. You can find the most up to date price on Coinbase.
How do I buy Ripple (XRP) with Litecoin?
The best way to buy Ripple using Litecoin is to either use a non KYC exchange like Cryptmixer or start an account on Binance or Coinbase Pro and sell your Litecoin for Ripple. Look for LTC/XRP trading pairs, and make your trade.
How long does Litecoin take to confirm?
Litecoin blocks are added ever 2 and a half minutes. That means you should get one confirmation every two and a half minutes. This can vary if it takes miners longer to discover a block, but the difficulty of the finding a block should change proportionate to the hashing power on the network so that a block gets added approximately every 2.5 minutes. If you are trying to send money to a merchant, they may require more than one confirmation before they send you products. If you are depositing on an exchange, they may also require three or more confirmations before they credit your account.
How many Litoshis make one Litecoin?
one hundred million (100,000,000) Litoshis make one (1) Litecoin.
Where do I store Litecoin?
The best place to store litecoin is on a hardware wallet. You can find the best one for you on our page dedicated to hardware wallets.
When is the Litecoin halving?
The expected date of the next Litecoin block reward halving is August 7th, 2023.
Why can litecoin take so long to buy?
Litecoin can take long to buy because the legacy banking system is very slow. If you are buying with another cryptocurrency, you will see how fast it is to buy! Bank transfer in the USA, for example, take about 5 days to complete. So any purchase of Litecoin made with a US bank transfer will take a minimum of 5 days.
How do I buy Litecoin with Paypal?
Unfortunately, there is no easy way to buy Litcoin with PayPal. Other sites will tell you that cex allows for this, but that is no longer the case. You can, however, now use eToro to buy Litcoineum, unless you live in the United States. If you live in the US, the only way to buy Litcoin with Paypal is to buy Bitcoin using paypal, and then use the Bitcoins to buy Litcoin. You can easily buy Bitcoin using Paypal on Local Bitcoins. Once you have Bitcoin, you can use an exchange like Cryptmixer to swap the Bitcoin for Litcoin.
Can you buy partial litecoins?
Yes, litecoin, like Bitcoin, is divisible to many decimal places so you can buy 0.1 LTC, 0.001 LTC, etc.
Can you sell litecoin?
Yes, you can sell LTC on most of the exchanges mentioned above. The fees, speed, and privacy is the same in most cases.
Can anyone buy litecoins?
Anyone is free to buy litecoins, as long as you find an exchange that supports your country. Most cryptocurrency wallets do not require ID to sign up so you can always make a wallet and get paid in litecoin, too.
Which payment method is best to use?
For speed, credit card will likely be fastest. For larger amounts, bank transfer is best. For privacy, it’s best to buy bitcoins with cash and then trade for litecoins using Cryptmixer or Shapeshift.
Is it better to mine or buy litecoins?
If you have cheap electricity, it might be worth it to mine litecoins. If you have solar power or just want to mine for fun then it could be worth it. Otherwise, it’s probably better just to buy. Mining is constantly changing and small changes in Litecoin price or electricity can greatly affect your profitability.
What should I do with my litecoins once I buy?
You should immediately move your litecoins into a secure wallet. You should never leave your litecoins on an exchange. There have been countless hacks in cryptocurrency since Bitcoin was created in 2009. Hundreds of thousands of people have lost money. So buy your litecoins, and then instantly send them into a wallet you control so you are not at risk of losing money to a hack or scam.
AMA AT DETECTIVE ID (25/06/2020) Before welcoming any questions, I would like to briefly introduce STATERA PROJECT. Statera is a smart contract deflationary token pegged to a cryptocurrency index fund. By including STA in an index fund with Link, BTC, ETH, and SNX you can buy one token and access the price action of four of the leading cryptocurrencies. You can also invest directly in the index fund (balancer pool) and receive the benefits of fees and BAL tokens paid to you while also having an automatically balanced fund. Lastly the deflationary mechanics of STA increases the chance for positive price action while decreasing beta (volatility). This is all found in a smart contract that is fully decentralized, the founders can no longer augment the contract in any way and this has been confirmed by a third party code audit through Hacken. Q1 : please explain in more detail about Statera, what is the background of this project? and when was it established? The dev of this project had previously created another deflationary token BURN. When the Balancer Labs released the Balancer Protocol, he had an idea to combine the two, deflationary token and a pool of tokens, making the first deflationary index fund. It started in the end of May and on the 3rd iteration, May 29th - a trustless version was launched that we see today. As briefly explained earlier, STATERA or STA is an Index Deflationary Token built on Ethereum blockchain; Index: Contains a token suite of world class leading crypto assests BTC, ETH, LINK, SNX with STA. Deflationary: On every transaction of STA 1% of the transacted amount is sent to 0x address on ethereum, burned forever, thus reducing the circulating supply of STA Index+Deflationary: STA is mixed with BTC, ETH, LINK SNX in a portfolio, backed by liquidity on a protocol known as balancer (balancer.finance) This platform serves as a market maker for the token suit. The Index suite is of equal rate of 20%, that is 20% of BTC, ETH, SNX LINK and STA, Thus, anytime there is an increase in value of any of those coins or tokens, balancer automatically trade them for STA in order to keep the token suit ratio balanced. And anytime there is an increase in the value of STA, the same process applies. while doing this trade, it enables further burning on every transaction, thus facilitating more token scarcity. In addition to this, Statera was deployed with contract finalised, that is, the index suite can not be altered, It is completely out of Dev's control. Q2 : What are the achievements that have been obtained by Statera in 2020? And what goals do you want to achieve in 2020? By this we assume the questionnaire is asking for a roadmap! First, the project is barely a month old, and within just a month, our liquidity has grown from $50,000 to over $400,000 currently above $300,000. Among the things we have accomplished so far is the creation of market value for STA's Balancer liquidity pool token BPT, which is currently over $1000 per one BPT. Regarding what we set to achieve: The future is filled with many opportunities and potentials, currently, we are working on a massive campaign to introduce our product to the outside world. We have already made contact with different and reputable forums and channels regarding marketing and advertisement offers, some which we are currently negotiating, some which we are awaiting response. All we can say for now is that the Team is working hard to make this the Investment opportunity every crypto enthusiast has been waiting for. Statera has the goal of putting cryptocurrency into every portfolio. We believe we have a product that increases the returns of investing in cryptocurrencies and makes it easier to diversify in this space. We have done so much in June: articles, how to videos, completed the audit, tech upgrades like one token liquidity additions, and beginning our many social communities. We have been hard at work behind the scenes but things like sponsorships, features, and media take time, content makers need days if not weeks to develop content, especially the best of the best. We are working tirelessly, we will not disappoint. We have plans for 2020-2025 and will release those in the next month. They are big and bold, you’re going to be impressed by the scale of our vision, when we say “Cryptocurrency in every portfolio” we mean it. In 2020 more specifically we are focused on more media, videos, product offerings, and exchanges. Q3 : What is the purpose of STA token? How can we get STA? The purpose of STA is an investment in the first deflationary index fund. The whole index's value rises from these aspects: 1. The index funds (WBTC,WETH,SNX,LINK) appreciate in value 2. When the index tokens are traded, the pool receives transaction fees - 1% 3. STA burns on transactions, so it's deflationary nature increases its value as the total supply drops 4. Balancer rewards Index holders with BAL token airdrops every week You can invest via the 'Trade' links in stateraproject.com website. Easiest way is to do it using ETH. The monetary policy of our token is set in stone and constantly deflationary. This negative supply pressure is a powerful mechanism in economics and price discovery. Through the lowering of supply we can decrease your beta (volatility) and increase your alpha (gains). Our token is currently only top 40 in liquidity on Balancer, however our volume is top 10! You want to know why? Because Statera works. Statera increases arbitrage, volume, fees, BAL rewards, and liquidity. Our liquidity miners in our Balancer pool are already making some of the highest BAL rewards on the platform, one user we spoke with made 18% in June, that’s over 150% APY! Our product is working, 100% (or you could say 150%), and when people start to see that, and realize the value, the sky's the limit. Q4 : can we as a user do STA mining? The supply of STA doesn't increase anymore, it only decreases due to the burn feature. So there is no way to mine anymore STA. Only way to acquire the tokens is via an exchange. The monetary policy of our token is set in stone and constantly deflationary. This negative supply pressure is a powerful mechanism in economics and price discovery. Through the lowering of supply we can decrease your beta (volatility) and increase your alpha (gains). Our token is currently only top 40 in liquidity on Balancer, however our volume is top 10! You want to know why? Because Statera works. Statera increases arbitrage, volume, fees, BAL rewards, and liquidity. Our liquidity miners in our Balancer pool are already making some of the highest BAL rewards on the platform, one user we spoke with made 18% in June, that’s over 150% APY! Our product is working, 100% (or you could say 150%), and when people start to see that, and realize the value, the sky's the limit. Q5 : The ecosystem of a public chain has a lot to do with the level of engagement and participation of third-party developers. How does Statera support the developers? Not really. Our project is focusing on investment opportunities for the cryptocurrencies. The cryptocurrency tokens that are not used and are just sitting in a wallet can work for you by being added to an index fund and appreciate in value over time. First off, what we have created is a new asset class, I’ll repeat that, a new asset class. This asset has never existed: “Deflationary Index Fund,” what does that mean for finance? What will developers do with this? It’s hard to give a finite answer. We hope there are future economic papers on our token and what it means to be a deflationary index fund. With the addition of synthetic assets and oracles you can put any asset into the DeFi space: Gold, Nikkei 225, USD, etc. STA can be combined with any assets and bring the benefits of it’s ecosystem and deflationary mechanism to that asset. STA, the token itself, also gives you access to the price action of any asset it is paired with. Put simply STA’s balancer pool(s) give you a benefit in holding them, and STA’s price will reflect it’s inclusion in Balancer Pool(s) (and possibly future financial instruments), so STA is a bet on DeFi as a whole. When we say as whole, we mean as whole: what happens if you include STA in a crypto loan, or package it with a synthetic S&P 500 token, or use it as fee payment in a DeFi platform? Being fully decentralized it is up to our community to make this happen, social engagement and community are key. We are constantly bringing community members onto our team and rewarding those that benefit the ecosystem. in addition, Statera is a fully community project now. Paul who is the current team leader was an ordinary member of the community weeks ago, due to his interest and support for the project, he started dedicating his time to the project. Quite a number of community members are also in the same position, while Statera was developed by an individual, it is being built by the entire Statera community Community Questions (Twitter): Q1 From: @KazimKara35 The project tells us that the acquisition and sale of data between participants is protected by code of conduct and how safe is deployed on the blockchain, but how do you handle regulations while operating on a global scale? Statera is decentralized token, similar to other utility crypto tokens and same regulations apply to it as others. his is actually a benefit of our decentralized nature. This isn’t legal advice, however in the past regulating bodies have ruled that the more decentralized a project is, especially from launch, the less likely they are to be deemed a security (see: Ethereum). This means they can be traded more freely and be available on more platforms. We are as decentralized as you can be. The data itself is all secured through the blockchain which has been shown to be a highly secure medium. We do not store any of your data and as long as you follow best practices in blockchain security there are no added security risks of using Statera. We don’t, and literally can’t, hold anymore personal information than is made available in any blockchain transaction. and that "personal information" is more likely than not just your ethereum wallet address, no "real world" data is included in transactions Q2 from: @Michael_NGT353 What is Mechanism you use On your Project sir? Are you Use PoS,PoW or other Mechanism Can you explain why you use it and what is Make it Different? Our token is an ERC-20 token and it's running on the Ethereum blockchain. The Ethereum's POW mechanism is currently supporting the Statera token We run on Ethereum, so we are currently PoW. With ETH 2.0 we will hopefully be PoS this year (hopefully). We use it because ETH has over 100 million addresses and around a million daily transactions. We are currently at about 1,900 token holders, we are just touching the edge of what is possible in this market. We chose the biggest and the best network available right now to launch our product. We think the upside is huge because of this choice. Being the biggest network it is also one of the most secure, no high risk vulnerabilities have been found in Ethereum or in our code (we've had our code audited by a third party, Hacken, and you can read their audit on our Medium page), so we also have security on our side Q3 From : @Ryaaan_Nguyen Can you list some of Statera outstanding features for everyone here to know about? What are the products that Statera is focusing on developing? As mentioned earlier by GC, First off, what we have created is a new asset class, I’ll repeat that, a new asset class. This asset has never existed: “Deflationary Index Fund,” what does that mean for finance? What will developers do with this? It’s hard to give a finite answer. We hope there are future economic papers on our token and what it means to be a deflationary index fund. With the addition of synthetic assets and oracles you can put any asset into the DeFi space: Gold, Nikkei 225, USD, etc. STA can be combined with any assets and bring the benefits of it’s ecosystem and deflationary mechanism to that asset. STA, the token itself, also gives you access to the price action of any asset it is paired with. Put simply STA’s balancer pool(s) give you a benefit in holding them, and STA’s price will reflect it’s inclusion in Balancer Pool(s) (and possibly future financial instruments), so STA is a bet on DeFi as a whole. When we say as whole, we mean as whole: what happens if you include STA in a crypto loan, or package it with a synthetic S&P 500 token, or use it as fee payment in a DeFi platform? We touched on this a bit in the question on what makes us special compared to other exchanges. We have created a product that synergizes with Balancer Pools creating a symbiotic relationship that improves the outcomes for users (our product can also synergize with future DeFi products). By including STA in an index fund with Link, BTC, ETH, and SNX you can buy one token and access the price action of four of the leading cryptocurrencies. You can also invest directly in the index fund (balancer pool) and receive the benefits of fees and BAL tokens paid to you while also having an automatically balanced portfolio (like an index fund with dividends). Lastly, the deflationary mechanics of STA increases the chance for positive price action while decreasing beta. We want to package Statera with assets across the whole cryptocurrency space, with an emphasis on DeFi. We also want everyday people to be able to invest quickly in crypto while also feeling reassured their investment is set up to succeed. We are focused on developing a name brand that people go to first and foremost when investing in crypto: cryptocurrency in every portfolio. This is all found in a smart contract that is fully decentralized, the founders can no longer augment the contract in any way and this has been confirmed by the third party code audit. This is a feature in and of itself, some argue that Bitcoin’s true value is in it’s network effect, first mover advantage, and immutability. Statera is modeled on all three of those and has those features in spades. The community now owns our token, the power in that, giving finance and power to the people, is why we are here. Q4 From : @futcek What do you think about the possibility of creating new use cases in DeFi space for existing real world assets by using crypto technology? What role do you see in this creation for Statera? I think my answer above actually answers this perfectly, Statera in and of itself is a “new use case”, a “deflationary index fund” has never existed, I’ll copy and paste the other relevant part: “With the addition of synthetic assets and oracles you can put any asset into the DeFi space: Gold, Nikkei 225, USD, etc. STA can be combined with any assets and bring the benefits of it’s ecosystem and deflationary mechanism to that asset. STA, the token itself, also gives you access to the price action of any asset it is paired with. Put simply STA’s balancer pool(s) give you a benefit in holding them, and STA’s price will reflect it’s inclusion in Balancer Pool(s) (and possibly future financial instruments), so STA is a bet on DeFi as a whole. When we say as whole, we mean as whole: what happens if you include STA in a crypto loan, or package it with a synthetic S&P 500 token, or use it as fee payment in a DeFi platform? Being fully decentralized it is up to our community to make this happen, social engagement and community are key. We are constantly bringing community members onto our team and rewarding those that benefit the ecosystem.” Statera is a way to make your investment more successful, and owning Statera let's you benefit from other people using it to make their investments more successful (a self feeding cycle). Q5 From : @Carmenzamorag Statera's deflationary system is based in that with every transaction 1% of the amount is destroyed, would this lead to lack of supply and liquidity in the long term future? How would that be fixed? The curve of supply is asymptote, meaning that it will never reach zero. The idea is that the deflationary process will slowly decrease the supply of STA, which – combined with a fixed or increaseing demand – will result in STA appreciating in value. Evidently, as the STA token increases in value, the amounts of STA being traded will slowly decrease: The typical investor might buy 10.000 STA at the current rate, but in the future (proportional to an increase in the valueation of STA) this number will tend to decrease, hence the future investor might only buy 1000 STA. This of course results in less STA being burned. Additionally, STA is divisible to the 18th decimal, why – even if the supply was to reach 1 STA – there would be a sufficient supply. Well this would be a question for a Mathematician, and luckily we’re loaded with them (as seen above)! I’ll try to illustrate with an example. 1% of 100 million is 1 million, 1% of 10 million is 100,000. As we go down in supply the burn is less by volume. What also happens at lower supply is higher prices (supply and demand economics). So those 1 million tokens burned may be worth $20,000, but by the time overall supply is at 10 million those 100,000 tokens may also be worth $20,000 or even more. This means you transact “less”, if you want to buy 1 Ether now with Statera you need 8,900 STA which would burn 89 tokens. If Statera is worth $100 you only need 2.32 statera (.023 tokens burned). Along with this proportional and relative burn decrease, tokens are 18 decimals long, so even when we get to 1 token left (which mathematically would take decades if not centuries, but that is wholly dependent on usage), you are still left with 10 to the 18th power, or one quintillion “tokens”. So it’s going to take us a while to have supply issues :) Nuked Phase (3rd Part) Q) What is your VISION and Mission? Our working mission and vision: Mission: Provide every investor with simple and effective ways to invest in cryptocurrency. Decrease volatility and increase positive price pressure in cryptocurrency investments. Lower the barrier to entry for more advanced investment tools. Be a community focused and community driven cryptocurrency, fully decentralized by every meaning of the word. Vision: We aspire to put “cryptocurrency in every portfolio”. We envision a world where finance is given back to the people and wealth building strategies withheld only for affluent individuals are given to all. We also strive to create an investment environment based on sound monetary policy and all the power that comes with a sound asset. Q) What are the benefits of STA for its investors in long term? Does STA have Afrika as an important area for its expansion? We have ties to Africa and see Statera as a way for anyone and everyone to invest in cryptocurrency. The small marketcap of statera makes it's price low and it's upside massive. Right now if you wanted to be exposed to the price action of four cryptocurrencies (BTC, ETH, Link, SNX) Statera is a way to gain that exposure in a way that has a huge upside, compared to the other four assets, there are risks in investing in any small cap but with those risk come outsized rewards (not investment advice and all answers are solely my opinions 😊) Q) In the long run, why should we trust and follow STATERA? How do you raise awareness and elimination of the doubts of investors / partners / customers?. You're really asking "How do I trust myself and other crypto investors" The project is FULLY decentralized, it is now in the hands of the community. We would venture a guess that the community wants their investment to succeed and be worth more in the future, so you are betting on people. wanting to make themselves money on their own investment. This is a pretty sure bet. The community being active and engaged is key, and we have short term and long term plans to ensure this happens Q) No one can doubt the strength of #Statera. But can you tell us some of the challenges and difficulties you're presently facing? How can you possibly overcome them? We're swinging outside our weightclass, we don't see litecoin or SNX, or any other crypto product as our competition. Our competition is NASDAQ, Fidelity, etc. We want to provide world class financial instruments that only the wealthy have access to in the traditional world to everyone. Providing liquidity, risk parity, being paid to provide liquidity, unique value propositions, are all things we want to bring to everyone. However we are coming up in a hectic space, everyday their is fud and defamation on the web, but that is the sandbox we chose to play in and we aren't grabbing our ball and going home. We can tell you that we will not disappoint and fighting all the fud that comes along with being a small and upstart project only fuel our fire. Building legitimacy is our largest challenge and looking at our audit, financial report, and some things you will see in the coming weeks, we hope you see we are facing those challenges head on. Q) What is the actual uniqueness of #Statera.??? Can you guys please explain tha advantages of #Statera over other projects.?? When we launched there were no other products like ours. There are now copies, and we wish them the best, but we have the best product, hands down. Over the next couple weeks this will become apparent, if it hasn't already, also a lot of the AMA answers dug deeper into our unique value proposition, especially the benefits we provide to Balancer Pools which shows the benefits we would provide for any index fund. We are a tool to improve cryptocurrency investing Q) Fragmentation, layering and cross-chain are three future solutions for high-performance blockchains. Where is Statera currently? What are the main reasons for taking this direction? We operate on the Ethereum chain, as it upgrades our services and usability will upgrade. We are working on UI and more user friendly systems to onboard people into our ecosystem Q) How STATERA plan to make room and make this project known in the world of crypto, full of technology and full of new projects very good in today's market? We think we have a truly innovative product, which - when first understood - appeals to most investors. Whether you want a high-volatility/medium-risk token like STA or whether you are more conservative and simply just plan on adding to the Statera pool BPT (which is not nearly as volatile but still offers great returns). We plan on making Statera known to the crypto world through a marketing campaign which slowly will be unravelled in the comming days and weeks. If interested, you can check out an analysis of the different investment options in the Statera ecosystem in our first financial report: https://medium.com/@stateraproject/statera-financial-reports-b47defb58a18 Q) Hello, cryptocurrencies are very volatile and follow bitcoin ... and does this apply to Statera? or is there some other logic present in some way? is statera token different from a current token? Are you working on listings on other exchanges? Currently uniswap is somewhat uncomfortable for fees. We are also on bamboo relay, saturn network, and mesa. Statera will be volatile like all cryptocurrency, this is a small and nascent space. But with the deflationary mechanic and balancer pool, over time, as marketcap grows it will become less volatile and more positively reactive to price. Q) Security is one of the most essential characteristics for a project to get reputation. How can #Statera Team assure to their community that users assets and investments will stay safe from unwanted agents? We have been third party audited by the same company that worked with VeChain to audit their code. Our code has been shown to be bulletproof. Unless Ethereum comes up with a fatal security flaw there is nothing that can happen to our contract (there is no backdoor, no way for anyone to edit or adjust the smart contract). Q) Many investors see the project from the price of the coin. Can you give us advantages why Statera is so suitable for long-term investment? and what makes Statera different from other similar projects? Sometimes the simplest solutions are the most effective. A question you can ask is “What if this fails”? But you can also ask, “What if this succeeds”? Cryptocurrency is filled with asymmetric risks, we think if you look into the value proposition you will find that there is a huge asymmetric risk/reward in Statera, and we will make that even clearer in our soon to be released litepaper. You are on the ground floor of a simple but highly effective solution to onboarding people into defi, cryptocurrencies, and investing. Our product reduces volatility and increases gains (decreases beta and increases alpha in investor terms), which is highly attractive in any investment. The down side is there but the upside outweighs it exponentially (asymmetric risk) Q) What your plans in place for global expansion, are Statera focusing on only market at this time? Or focus on building and developing or getting customers and users, or partnerships? Can you explain this? We have reached out to influencers in other countries and things are in the works. We have also translated documents and are working on having them in at least 4 languages by the end of July. We were founded globally, our team is global, and we are focused on reaching all 7 billion people. Q) Now in the cryptofield everyday there are new projects joining in the Blockchain space. They are upgraded, Well-established and coming up with innovative technology. How Statera going to compete with them? What do you think, one day Statera will become useless And will be lost into the abyss of time for not bringing any new technology? We are the first of our kind, no one had a deflationary index fund before us. Index funds will be the future of crypto (look at the popularity of etfs and indexes in the traditional markets). We are a tool to make your index function better and pay you more. As long as people care about crypto index funds they will care about the value STA brings to that. We have an involved and long term plan to reach dominance over a 5 year span, this is not a flash in the pan, big things coming Q1. You say that the weight and proportions of your tokens are constant. So how have you managed to prevent market price speculation from generating hypervolability in your token price? Do you consider yourselves a kind of stablecoin? Q2. How many jurisdictions allow the use of Stratera products and services? Are they available for Latin America? @joloroeowo The balancer ensures an equal ratio of 20% amongst the five tokens included in our fund. This, however, does not imply that the tokens are stable. Rather, the Balancer protocol helps mitigating price fluctuations. Q) How can I as a Statera participant participate in liquidity mining, and receive BAL as reward? What are the use cases of $STA token, and how are users motivated to buy and hold long term? The easiest way is to go to stateratoken.com and click trade then BPT. You can also buy all five tokens and click on portfolio then add liquidity. Balancer is working on a simpler interface to add liquidity with one token, we are waiting on them. I think we explained the use cases above Q) What do you plan have for global expansion, is Statera currently focused solely on the market? Or is it focused on building and developing or acquiring customer and user or partnership relationships? Can you explain it? We are currently working on promoting the project and further develope our product, making it lucrative for more new investors to join our pool and invest in the STA token. Q1) Statera have 2 types of tokens, so can you tell me the differences between STA and STAC ? What are their uses cases? Is possible Swap between them? Q2) Currently the only possible Swap or "exchange" possible is Uniswap, so you do have plans to list the STA token into a more Exchanges? STAC is obsolete, we only have STA and BPT (go to our website and click on trade) stateratoken.com BPT gives you more diversification and less risk, STA gives you more volatility and more chance for big gains. Q2 we are on multiple exchanges (4), bamboo relay, saturn, and mesa we do have plans for future exchanges but the big ones have processes and hoops to jump through that can't be done so quickly Q) What business scenarios can STATERA support now? In which industries can we see the mass adoption of STATERA technology in the near future? Statera increases the effectiveness of your cryptocurrency investments. Specifically it makes cryptocurrency index funds function better, netting you higher returns, which we have already seen in just one month of implementation. Right now, today, you can buy our BPT token and increase the functionality of holding a crypto index fund. In the future we want every single web user to see and use our product Q) Do you plan to migrate to other platforms like Tron, BinanceChain, EOS, etc. if it is feasible?? Migrating our current contract is not. Starting new offerings on those other chains could be possible, they aren't on our radar currently but if the community requests them we are driven by our community Q) ETH Blockchain is a Blockchain have many token based in it, i have used ETH blockchain long time and i see it have big fee and need much time to make a transcation so Why you choose to based STA in ETH blockchain not other like Bep2 or Trc20 ? Simply: 100 million addresses, 1 million transactions a day. The more users we have the more we will benefit our community. We hope ETH 2.0 scaling will fix the problems you mention. Q) No one achieve anything of value on its own, please can you share about Statera present and future partnerships that will drive you to success in this highly congested crypto space? We have a unique product that no one else has (there are people who have copied us). We can't announce our current and future partnerships yet, but they will be released soon. Our future hopes of partnerships are big and will be key to our future, know we are focused on making big partnerships, some you may not even be thinking about. Q) According to the fact that your algorithm causes 1% of each transaction to be destroyed, I would like to know, then, how you plan to finance yourself as a project in the long term? The project is now in the hands of the community and we are a team of passionate people volunteering to help promote and develope the Statera ecosystem. But then, how do we afford running a promo campaign? We have lots of great community members donating funds that goes to promoting the project. In other words, the community helps financing the project. And so far, we have created a fantastic community consisting of passionate and well-educated people! Q) There are many cryptocurrency startups were established by talent teams, but they got problem in raising capital via token sales due to many factors as bear market, bankrupt etc. This leaded their potential startups fail. So how will Statera break these barriers and attract more funds from outside crypto space? We are community focused and community ran. When you look at centralized cryptocurrencies you can see the negative of them (Tron, ADA, etc.) We believe being fully decentralized is the true power position. You the owner of statera can affect our future and must affect our future. This direct ownership means people need to mobilize and organize to push us forward, and it is in their best self interest to do so. It's a bet on our community, we're excited about that bet Q) What business scenarios can STATERA support now? In which industries can we see the mass adoption of STATERA technology in the near future? Statera increases the effectiveness of your cryptocurrency investments. Specifically it makes cryptocurrency index funds function better, netting you higher returns, which we have already seen in just one month of implementation. Right now, today, you can buy our BPT token and increase the functionality of holding a crypto index fund. In the future we want every single web user to see and use our product Q) Why being a hybrid of a liquidity pool and an index fund? What are the main benefits about this? By being a liquidity pool the exchange side of the pool (balancer also functions as an exchange) gives you added liquidity for more effortless, effective, and cheaper rebalancing. You also benefit from getting paid the fee when people use the exchange AND getting paid BAL tokens that are worth $15-20 USD. These are not benefits you get with an index fund, meanwhile the liquidity pool rebalances just like an index fund would Q) Which specific about technology and strategy of #STA that make you believe it will be successful and what does #STA plan do to attract more users in the upcoming time? I think the idea behind Statera is truly ingenious. We have made an index fund, which investors are highly(!) incentivised to invest in, namely because the ROI, so far, has been huge. An increase in the pool liquidity (index fund) indirectly translates into an increase in the price of STA, why we think the STA token - combined with its deflationary nature - will increase in the long run. The mechanism behind this is somewhat complex, but to better get an understanding of it, I suggest you visit our medium page and read more about the project: https://medium.com/@stateraproject
Interview With Eddie Jiang: How CoinEx Is Adapting To The Exchange Space And Growing
Written by chaintalk.tv https://preview.redd.it/v238540taz751.jpg?width=1280&format=pjpg&auto=webp&s=2a852e171a74e49da802d7c12fadba452cf4cf43 We recently had the opportunity to interview the VP of ViaBTC Group, Eddie Jiang. ViaBTC Group owns popular crypto exchange CoinEx and ViaBTC Pool. In this interview Eddie discusses being the first exchange to use BCH as the base currency, ViaBTC Pool and integrating with CoinEx, new features and ambassador program, and competing with other exchanges like Binance and Huobi. Please enjoy the interview below. How come you decided to open up CoinEx to other cryptos other than just BCH? Eddie Jiang: CoinEx is the world’s first exchange to implement Bitcoin Cash as a base currency. At that time, it was evident that there was a demand for BCH trading markets, and we are the first to explore this opportunity. It also shows our determination to support the BCH’s development. As CoinEx is developing, our goal becomes bigger and we are aiming at the global market. We need to constantly improve our product diversification to meet the different needs of more users, so we open up to other cryptos. In the past six months, we have listed more than 50 new tokens. Up to now, we have listed 129 cryptos and 313 markets. Besides, in addition to spot trading, CoinEx also supports perpetual contract and other derivatives trading. How does CoinEx integrate with the ViaBTC Pool? Eddie Jiang: ViaBTC Group announced a strategic upgrade, which included a new organizational structure, product innovations and service improvements, on 30 May. As part of the change, the Group has established three dedicated business units (BU): the financial services BU, consisting of ViaBTC mining pool and CoinEx exchange; the infrastructure services BU, including ViaWallet and Blockchain Explorer; and the ecological development BU, focusing on the research and development of public chain technology and the construction of the ecology. After halving, the combination of mining and finance will become closer and closer. Investing in mining machines is like buying a Bitcoin option. Miners need more flexible financial products to maintain and increase the value of assets, or hedging services. Based on this judgment, the operations of ViaBTC mining pool and CoinEx exchange will be integrated in the future to realize the financial empowerment of the mining pool to meet the diverse financial needs of miners. Features of this integrated product upgrade can be summarized as: “ The mining pool is the wallet, and the wallet is the transaction.” ViaBTC is the world first mining pool that has a wallet embedded in the mining pool account. Users do not need to transfer the mined coins, and can realize the function of coin exchange within the wallet. For example, they can directly convert the mined coins into USDT to pay electricity bill. What’s more, users can store, deposit and withdraw their revenue, and transfer assets to CoinEx at any time without charge, as well as complete other operations on the exchange, such as purchasing wealth management products for asset preservation and appreciation. In addition, we also provide hedging services. All of the above functions can be completed in one stop in the mining pool, without the need to transfer assets between different platforms. The exchange empowers the mining pool, and the mining pool will further bring more traffic and resources to the exchange. The two complement each other and development coordinately. CoinEx has recently added many new features. Can you talk about what new updates were made to the platform and why you made them? Eddie Jiang: We have always attached great importance to the development of overseas markets since our establishment, and one of our major goals this year is to cover at least 10 different languages speaking markets. To realize this and to meet the needs of more users worldwide, CoinEx has been continuously optimizing and upgrading its operating strategies, products and services. Our product diversifications are constantly improving. As I said before, we have launched leverage trading, perpetual contract trading, and wealth management products in addition to just spot trading. However, we don’t ignore the importance of spot trading. More mainstream, popular, and high-quality tokens have been listed, and up to now, there are 129 tokens and 313 trading pairs on CoinEx. During the epidemic, we have never slowed down our development. Lacking of the OTC service has always been a shortage for CoinEx. In March, we partner with Simplex to integrate the first fiat onramp to our platform. People now can buy crypto with their credit cards, which lowers the threshold for more people to enter the crypto world. Moreover, we announced global strategic partnership with Matrixport to provide people with large amount of fiat to crypto needs the OTC service. These newly launched services also help to attract more users. At the same time, CoinEx has been launched in Arabic, Italian, English, Japanese, Russian, Korean and other 16 languages. Earlier we also carried out product upgrades, making the UI and function sections clearer. In terms of operations, we launched an upgraded CoinEx Ambassador program in March. To best utilize each ambassador’s personal strengths, there are four categories of CoinEx Ambassador with different responsibilities, namely Referral Ambassador, Marketing Ambassador, Operation Ambassador, and Business Ambassador, which will expand our brand’s exposure and help CoinEx grow into a more international exchange platform. From March until now CoinEx has seen a 100% increase in user registrations. Why is that and are you able to see where they are coming from? Eddie Jiang: Because of the efforts mentioned above, in 2020, we’ve seen an exponential increase in activity in just the past few months alone. In this year alone, CoinEx’s daily registered users increased by 100%. These new users mainly come from markets such as the Middle East, Asia Pacific, and more. Interestingly, we saw an uptick in traffic from the Middle East in March. User growth in Southeast Asia also picked up significantly, newly registered users increased by 133.6% in April. With Binance, BitMex, Huobi, Bybit, and Deribit, controlling most of the crypto futures and options markets, where do you see CoinEx fitting in? How do you plan to capture market share from these large exchanges? Eddie Jiang: We won’t compete with others. We focus on ourselves to improve products and our goal is to be better than yesterday. Our pace is solid and steady, instead of focusing on temporary heat and flow. We have always attached great importance of spot trading, and we are committed to be responsible for users’ investment. We have set up CoinEx Institution, which is dedicated on project research. A listing committee consist of core team members review and vote on projects recommended by the CoinEx Institution. In this way, fraud projects are avoided as much as possible. Besides, we will focus on niche areas with great potential. For example, Southeast Asia and the Middle East. CoinEx can serve users in those countries well by providing a platform with rich cryptos to trade, and will pay more efforts on refined operations in different countries. Moreover, CoinEx has a very complete ecosystem. Financial services, infrastructure, and ecological development, the three business units complement each other. The infrastructure BU is our cornerstone and is positioned as a defensive product; the financial service BU is a cash cow and is positioned as an aggressive product; the ecological development BU focuses on the public chain ecology and is the future infrastructure. What is the geographical breakdown of the CoinEx userbase? Eddie Jiang: The current proportion of CoinEx’s overseas users has reached 80% of the total registered users, and mainly in Australia, Southeast Asia, North America, Middle East and South Korea. Do you have plans to focus on any certain jurisdictions? How will you do that? Eddie Jiang: When we evaluate regions, two things matter: policy and potential. Whether an exchange’s business expansion in a region is smooth or not largely depends on the region’s policies. If the region is not very friendly towards cryptocurrency or has repeated attitudes, there will be more difficulties and the cost will be much higher. For a region’s development potential, we need to think about the demand and market development status. South Korea, Southeast Asia, the Middle East and other regions are all areas with good potential for cryptocurrency development. Compared with Europe and America, policy risks in these countries are lower, and the supervision mechanism is relatively complete. The public has a high degree of awareness of cryptocurrencies. Besides, some regions or countries have inflation problems due to political and economic reasons. CoinEx will continue to focus on the Middle East and South Asia, which are relatively niche. India has just lifted ban on cryptocurrency trading this year, and there are many cryptocurrency investors in Indian. CoinEx can serve them well by providing a platform with rich cryptos to trade. More people in the Middle East are interested cryptos, especially in countries that are subject to economic sanctions or high inflation. For those people, cryptocurrencies are one of the best choices for asset preservation. Since the CoinEx Ambassador program launched in March, it has been almost three months. We are conducting the second round of ambassador recruitment. This time, we will use the power of ambassadors to expand our recruitment coverage and strive to attract more crypto enthusiasts from all over the world to grow together with CoinEx. Moreover, we will launch the National Expansion plan and leverage on the CoinEx and ViaBTC mining pool resources, to further explore the Russian market. At the market level, we will make more PR efforts in local markets, and start refined operations. What is CoinEx Chain and CoinEx DEX? Eddie Jiang: CoinEx Chain is a public chain built on the Tendermint consensus protocol and the Cosmos SDK. It consists of three dedicated public chains parallel to each other. Among these three chains, CoinEx DEX meets the most basic needs of DeFi for token issuance, transfer, and transactions. The Smart Chain is designed to meet the needs of complex financial scenarios and delivers programmable cash. The Privacy Chain facilitates privacy and security. On November 11, 2019, we took the lead in launching the Mainnet of CoinEx DEX. CoinEx DEX is the world’s first public chain dedicated to decentralized transactions. Users can easily manage their digital assets on it. CoinEx DEX can fully satisfy the following conditions: users have private keys at their own disposal; transfers and transactions are all completed on-chain, which is 200% transparent and checkable; the issuance, transfer, and transaction of tokens do not require review or permission; the community governance and operation is decentralized, similar to EOS, and validators are introduced to the community ecosystem construction and governance. There are currently 41 validators. It also has extreme performance. TPS reaches as high as 10,000 and transactions are confirmed within seconds. The transaction fee, 0.0001 US dollars for each transaction, is negligible. Third, it’s simple and easy to use. The new operation interface design helps beginners get started quickly; with the one-click token issuing module, users only need to fill in a few items to issue tokens; the built-in automated market-making module guarantees liquidity. How will CoinEx DEX improve the decentralized exchange space that has been unable to gain much adoption? Eddie Jiang: There are many challenges and difficulties facing centralized exchanges. The first difficulty is security. Security is a huge concern for CEXs. Over the last 10 years, hackers have stolen more than $1.5 billion from centralized exchanges. In fact, research groups estimate that hackers stole somewhere between $950 Million and $1 Billion from centralized exchanges in 2018 alone. There were also incidents of coin thefts in other exchanges in 2019. Many exchanges, such as Mt. Gox, Youbit, were forced to file for bankruptcy and shut down as a result of hacks. The second is high management costs. Centralized exchanges need to list a large number of cryptocurrencies and each of them have different trading pairs. That entails huge efforts in development and maintenance and, thus, high management costs. The last is global policies. Cryptocurrency is faced with different regulatory policies in different countries. Every time a centralized exchange enters a country, it needs to adapt itself to local regulatory policies for compliance. This is a holdback for the exchange’s rapid market expansion globally. Such adaptation will also bring a huge learning cost for the exchange team. Obviously, these problems can be well solved by DEX. CoinEx DEX is a true DEX with full open source and full community governance, as well as without depending on official nodes, websites, wallets, etc. On DEX, users are able to in charge of their own private keys and assets all by themselves. Their assets are more safe and secure. Transfers and transactions are all completed on-chain, which is 200% transparent and checkable; and the issuance, transfer, and transaction of tokens do not require review or permission. What’s more, CoinEx DEX provides a great and convenient user experience. How will CoinEx Chain and DEX help the crypto industry as a whole? Eddie Jiang: The public chain is the cornerstone of the blockchain industry. CoinEx Chain has the parallelism of multiple dedicated public chains, each of which performs its own functions, by cross-chaining for both high performance and flexibility. CoinEx Chain is committed to building the next generation of blockchain financial infrastructure. It is a more complete ecosystem built around the DEX public chain. The DEX public chain is a dedicated public chain developed specifically for token issuance and trading and the biggest improvement on trading speed, so it only supports the necessary functions, not smart contracts. But smart contracts are the foundation for building more complex financial applications. Outside the DEX public chain, CoinEx Chain also includes a Smart Chain that supports smart contracts. Moreover, as privacy issues on the current blockchain have been criticized, it is one of the core tasks of CoinEx Chain to safeguard users’ privacy. Similar to the Smart Chain, the Privacy Chain specifically supports transaction privacy protection. With cross-chain circulation, it can improve the privacy characteristic of the entire CoinEx Chain ecosystem. Nowadays, 1.7 million people in the world have no bank accounts; however, among them, two thirds are smartphone users with huge demands for financial services. The public chain will empower DeFi applications’ development and popularization, not only help more companies to seize the huge market opportunity, but also to bring lasting transformations and improvements in people’s lives. With so many crypto exchanges, what is the future outlook of CoinEx when it comes to the crypto exchange space? Eddie Jiang: It has been nearly 3 years since CoinEx has been launched, but it’s quite young for an entrepreneurial team. We have seen too many projects’ failures due to governance issues. CoinEx has a very elite team with high technical and management capabilities. In terms of business, CoinEx has gradually developed with diversified business and a complete ecosystem. It’s clear that the market will still grow very fast in the future, and the market size is still very large. We will continue to improve our products, put more efforts in marketing and operations, as well as look for more high-quality projects, to increase the number of users and transactions on the platform. Lay a solid foundation, and I’m sure the time will come for us to shine. What updates is the CoinEx team most excited for? Eddie Jiang: We are very excited about the National Expansion Plan which will be launched later this year. It is an important part in CoinEx’s globalization strategy. We will actively explore some new markets while consolidate the original ones. CoinEx will set aside 10 million US dollars to set up a “Pioneer Fund” to support this plan. This fund will be used to support local cryptocurrency projects and promote the development of the local cryptocurrency communities through investment or cooperation. Our goal this year is to invest in projects and communities that are conducive to expanding the CoinEx ecosystem in countries with high development potential. Original article ClickHEREto register on CoinEx
Bitcoin (BTC) is a peer-to-peer cryptocurrency that aims to function as a means of exchange that is independent of any central authority. BTC can be transferred electronically in a secure, verifiable, and immutable way.
Launched in 2009, BTC is the first virtual currency to solve the double-spending issue by timestamping transactions before broadcasting them to all of the nodes in the Bitcoin network. The Bitcoin Protocol offered a solution to the Byzantine Generals’ Problem with ablockchainnetwork structure, a notion first created byStuart Haber and W. Scott Stornetta in 1991.
Bitcoin’s whitepaper was published pseudonymously in 2008 by an individual, or a group, with the pseudonym “Satoshi Nakamoto”, whose underlying identity has still not been verified.
The Bitcoin protocol uses an SHA-256d-based Proof-of-Work (PoW) algorithm to reach network consensus. Its network has a target block time of 10 minutes and a maximum supply of 21 million tokens, with a decaying token emission rate. To prevent fluctuation of the block time, the network’s block difficulty is re-adjusted through an algorithm based on the past 2016 block times.
With a block size limit capped at 1 megabyte, the Bitcoin Protocol has supported both the Lightning Network, a second-layer infrastructure for payment channels, and Segregated Witness, a soft-fork to increase the number of transactions on a block, as solutions to network scalability.
Bitcoin is a peer-to-peer cryptocurrency that aims to function as a means of exchange and is independent of any central authority. Bitcoins are transferred electronically in a secure, verifiable, and immutable way.
Network validators, whom are often referred to as miners, participate in the SHA-256d-based Proof-of-Work consensus mechanism to determine the next global state of the blockchain.
The Bitcoin protocol has a target block time of 10 minutes, and a maximum supply of 21 million tokens. The only way new bitcoins can be produced is when a block producer generates a new valid block.
The protocol has a token emission rate that halves every 210,000 blocks, or approximately every 4 years.
Unlike public blockchain infrastructures supporting the development of decentralized applications (Ethereum), the Bitcoin protocol is primarily used only for payments, and has only very limited support for smart contract-like functionalities (Bitcoin “Script” is mostly used to create certain conditions before bitcoins are used to be spent).
In the Bitcoin network, anyone can join the network and become a bookkeeping service provider i.e., a validator. All validators are allowed in the race to become the block producer for the next block, yet only the first to complete a computationally heavy task will win. This feature is called Proof of Work (PoW). The probability of any single validator to finish the task first is equal to the percentage of the total network computation power, or hash power, the validator has. For instance, a validator with 5% of the total network computation power will have a 5% chance of completing the task first, and therefore becoming the next block producer. Since anyone can join the race, competition is prone to increase. In the early days, Bitcoin mining was mostly done by personal computer CPUs. As of today, Bitcoin validators, or miners, have opted for dedicated and more powerful devices such as machines based on Application-Specific Integrated Circuit (“ASIC”). Proof of Work secures the network as block producers must have spent resources external to the network (i.e., money to pay electricity), and can provide proof to other participants that they did so. With various miners competing for block rewards, it becomes difficult for one single malicious party to gain network majority (defined as more than 51% of the network’s hash power in the Nakamoto consensus mechanism). The ability to rearrange transactions via 51% attacks indicates another feature of the Nakamoto consensus: the finality of transactions is only probabilistic. Once a block is produced, it is then propagated by the block producer to all other validators to check on the validity of all transactions in that block. The block producer will receive rewards in the network’s native currency (i.e., bitcoin) as all validators approve the block and update their ledgers.
The Bitcoin protocol utilizes the Merkle tree data structure in order to organize hashes of numerous individual transactions into each block. This concept is named after Ralph Merkle, who patented it in 1979. With the use of a Merkle tree, though each block might contain thousands of transactions, it will have the ability to combine all of their hashes and condense them into one, allowing efficient and secure verification of this group of transactions. This single hash called is a Merkle root, which is stored in the Block Header of a block. The Block Header also stores other meta information of a block, such as a hash of the previous Block Header, which enables blocks to be associated in a chain-like structure (hence the name “blockchain”). An illustration of block production in the Bitcoin Protocol is demonstrated below. https://preview.redd.it/m6texxicf3151.png?width=1591&format=png&auto=webp&s=f4253304912ed8370948b9c524e08fef28f1c78d
Block time and mining difficulty
Block time is the period required to create the next block in a network. As mentioned above, the node who solves the computationally intensive task will be allowed to produce the next block. Therefore, block time is directly correlated to the amount of time it takes for a node to find a solution to the task. The Bitcoin protocol sets a target block time of 10 minutes, and attempts to achieve this by introducing a variable named mining difficulty. Mining difficulty refers to how difficult it is for the node to solve the computationally intensive task. If the network sets a high difficulty for the task, while miners have low computational power, which is often referred to as “hashrate”, it would statistically take longer for the nodes to get an answer for the task. If the difficulty is low, but miners have rather strong computational power, statistically, some nodes will be able to solve the task quickly. Therefore, the 10 minute target block time is achieved by constantly and automatically adjusting the mining difficulty according to how much computational power there is amongst the nodes. The average block time of the network is evaluated after a certain number of blocks, and if it is greater than the expected block time, the difficulty level will decrease; if it is less than the expected block time, the difficulty level will increase.
What are orphan blocks?
In a PoW blockchain network, if the block time is too low, it would increase the likelihood of nodes producingorphan blocks, for which they would receive no reward. Orphan blocks are produced by nodes who solved the task but did not broadcast their results to the whole network the quickest due to network latency. It takes time for a message to travel through a network, and it is entirely possible for 2 nodes to complete the task and start to broadcast their results to the network at roughly the same time, while one’s messages are received by all other nodes earlier as the node has low latency. Imagine there is a network latency of 1 minute and a target block time of 2 minutes. A node could solve the task in around 1 minute but his message would take 1 minute to reach the rest of the nodes that are still working on the solution. While his message travels through the network, all the work done by all other nodes during that 1 minute, even if these nodes also complete the task, would go to waste. In this case, 50% of the computational power contributed to the network is wasted. The percentage of wasted computational power would proportionally decrease if the mining difficulty were higher, as it would statistically take longer for miners to complete the task. In other words, if the mining difficulty, and therefore targeted block time is low, miners with powerful and often centralized mining facilities would get a higher chance of becoming the block producer, while the participation of weaker miners would become in vain. This introduces possible centralization and weakens the overall security of the network. However, given a limited amount of transactions that can be stored in a block, making the block time too longwould decrease the number of transactions the network can process per second, negatively affecting network scalability.
3. Bitcoin’s additional features
Segregated Witness (SegWit)
Segregated Witness, often abbreviated as SegWit, is a protocol upgrade proposal that went live in August 2017. SegWit separates witness signatures from transaction-related data. Witness signatures in legacy Bitcoin blocks often take more than 50% of the block size. By removing witness signatures from the transaction block, this protocol upgrade effectively increases the number of transactions that can be stored in a single block, enabling the network to handle more transactions per second. As a result, SegWit increases the scalability of Nakamoto consensus-based blockchain networks like Bitcoin and Litecoin. SegWit also makes transactions cheaper. Since transaction fees are derived from how much data is being processed by the block producer, the more transactions that can be stored in a 1MB block, the cheaper individual transactions become. https://preview.redd.it/depya70mf3151.png?width=1601&format=png&auto=webp&s=a6499aa2131fbf347f8ffd812930b2f7d66be48e The legacy Bitcoin block has a block size limit of 1 megabyte, and any change on the block size would require a network hard-fork. On August 1st 2017, the first hard-fork occurred, leading to the creation of Bitcoin Cash (“BCH”), which introduced an 8 megabyte block size limit. Conversely, Segregated Witness was a soft-fork: it never changed the transaction block size limit of the network. Instead, it added an extended block with an upper limit of 3 megabytes, which contains solely witness signatures, to the 1 megabyte block that contains only transaction data. This new block type can be processed even by nodes that have not completed the SegWit protocol upgrade. Furthermore, the separation of witness signatures from transaction data solves the malleability issue with the original Bitcoin protocol. Without Segregated Witness, these signatures could be altered before the block is validated by miners. Indeed, alterations can be done in such a way that if the system does a mathematical check, the signature would still be valid. However, since the values in the signature are changed, the two signatures would create vastly different hash values. For instance, if a witness signature states “6,” it has a mathematical value of 6, and would create a hash value of 12345. However, if the witness signature were changed to “06”, it would maintain a mathematical value of 6 while creating a (faulty) hash value of 67890. Since the mathematical values are the same, the altered signature remains a valid signature. This would create a bookkeeping issue, as transactions in Nakamoto consensus-based blockchain networks are documented with these hash values, or transaction IDs. Effectively, one can alter a transaction ID to a new one, and the new ID can still be valid. This can create many issues, as illustrated in the below example:
Alice sends Bob 1 BTC, and Bob sends Merchant Carol this 1 BTC for some goods.
Bob sends Carols this 1 BTC, while the transaction from Alice to Bob is not yet validated. Carol sees this incoming transaction of 1 BTC to him, and immediately ships goods to B.
At the moment, the transaction from Alice to Bob is still not confirmed by the network, and Bob can change the witness signature, therefore changing this transaction ID from 12345 to 67890.
Now Carol will not receive his 1 BTC, as the network looks for transaction 12345 to ensure that Bob’s wallet balance is valid.
As this particular transaction ID changed from 12345 to 67890, the transaction from Bob to Carol will fail, and Bob will get his goods while still holding his BTC.
With the Segregated Witness upgrade, such instances can not happen again. This is because the witness signatures are moved outside of the transaction block into an extended block, and altering the witness signature won’t affect the transaction ID. Since the transaction malleability issue is fixed, Segregated Witness also enables the proper functioning of second-layer scalability solutions on the Bitcoin protocol, such as the Lightning Network.
Lightning Network is a second-layer micropayment solution for scalability. Specifically, Lightning Network aims to enable near-instant and low-cost payments between merchants and customers that wish to use bitcoins. Lightning Network was conceptualized in a whitepaper by Joseph Poon and Thaddeus Dryja in 2015. Since then, it has been implemented by multiple companies. The most prominent of them include Blockstream, Lightning Labs, and ACINQ. A list of curated resources relevant to Lightning Network can be found here. In the Lightning Network, if a customer wishes to transact with a merchant, both of them need to open a payment channel, which operates off the Bitcoin blockchain (i.e., off-chain vs. on-chain). None of the transaction details from this payment channel are recorded on the blockchain, and only when the channel is closed will the end result of both party’s wallet balances be updated to the blockchain. The blockchain only serves as a settlement layer for Lightning transactions. Since all transactions done via the payment channel are conducted independently of the Nakamoto consensus, both parties involved in transactions do not need to wait for network confirmation on transactions. Instead, transacting parties would pay transaction fees to Bitcoin miners only when they decide to close the channel. https://preview.redd.it/cy56icarf3151.png?width=1601&format=png&auto=webp&s=b239a63c6a87ec6cc1b18ce2cbd0355f8831c3a8 One limitation to the Lightning Network is that it requires a person to be online to receive transactions attributing towards him. Another limitation in user experience could be that one needs to lock up some funds every time he wishes to open a payment channel, and is only able to use that fund within the channel. However, this does not mean he needs to create new channels every time he wishes to transact with a different person on the Lightning Network. If Alice wants to send money to Carol, but they do not have a payment channel open, they can ask Bob, who has payment channels open to both Alice and Carol, to help make that transaction. Alice will be able to send funds to Bob, and Bob to Carol. Hence, the number of “payment hubs” (i.e., Bob in the previous example) correlates with both the convenience and the usability of the Lightning Network for real-world applications.
Schnorr Signature upgrade proposal
Elliptic Curve Digital Signature Algorithm (“ECDSA”) signatures are used to sign transactions on the Bitcoin blockchain. https://preview.redd.it/hjeqe4l7g3151.png?width=1601&format=png&auto=webp&s=8014fb08fe62ac4d91645499bc0c7e1c04c5d7c4 However, many developers now advocate for replacing ECDSA with Schnorr Signature. Once Schnorr Signatures are implemented, multiple parties can collaborate in producing a signature that is valid for the sum of their public keys. This would primarily be beneficial for network scalability. When multiple addresses were to conduct transactions to a single address, each transaction would require their own signature. With Schnorr Signature, all these signatures would be combined into one. As a result, the network would be able to store more transactions in a single block. https://preview.redd.it/axg3wayag3151.png?width=1601&format=png&auto=webp&s=93d958fa6b0e623caa82ca71fe457b4daa88c71e The reduced size in signatures implies a reduced cost on transaction fees. The group of senders can split the transaction fees for that one group signature, instead of paying for one personal signature individually. Schnorr Signature also improves network privacy and token fungibility. A third-party observer will not be able to detect if a user is sending a multi-signature transaction, since the signature will be in the same format as a single-signature transaction.
4. Economics and supply distribution
The Bitcoin protocol utilizes the Nakamoto consensus, and nodes validate blocks via Proof-of-Work mining. The bitcoin token was not pre-mined, and has a maximum supply of 21 million. The initial reward for a block was 50 BTC per block. Block mining rewards halve every 210,000 blocks. Since the average time for block production on the blockchain is 10 minutes, it implies that the block reward halving events will approximately take place every 4 years. As of May 12th 2020, the block mining rewards are 6.25 BTC per block. Transaction fees also represent a minor revenue stream for miners.
Regards!! I'm Jesús Zambrano, member of the Hispanic community of NANO for a long time. Last thursday, we had an interesting and enjoying Ask-me-anything at Binance Spanish community on telegram with the people behind NANO, Colin LeMahieu (Founder and Executive Director) and Zach Hyatt (Proyect Manager), where we take advantage of their kindness and willingness to ask them some questions and share opinions about de currency. I will share a compilation of some of the questions and answers. -(Admin) ¡Welcome Binancians to our following AMA! I will explain how AMA works; we will have three (3) segments. Segment #1: I am going to ask to our guests five (5) questions and then they will answer them. I will be explaining the rest of the segments as we conclude one of them. -(Admin) Today we have the great pleasure of having Colin (Founder and Executive Director) and Zach (Project Manager) with us in our chat room. Could you give us a little introduction about you? - (Zach) Hi everyone, I am Zach Hyatt, the Project Manager at the Nano Foundation and am excited to help answer questions about Nano. I live in Austin, TX where it is quite hot right now! -(Colin) I’m Colin LeMahieu, founder of Nano. I’m a computer engineer and I’ve worked at companies like Qualcomm, Dell, and AMD. I have been working on Nano for about 5 years now and I’m really excited to talk with people who are interested as well! -(Admin) It is a pleasure for us to have you here, I have to say that on a personal level, I have been a follower of the project for a long time now, so it is incredible for me to be able to count on you tonight, we will start with segment # 1, with the questions I have for you. Feeless transactions and in record time! What is NANO? Can you give us an introduction to the project? -(Colin) Nano’s goal is to solve problems with other cryptocurrencies and make sending value fast and fee-less. It has a unique design to allow us to accomplish this. We want people to have the option of using decentralized digital money instead of fiat money anywhere in the world. Nano is accessible and easy-to-use today and we plan on keeping it focused on these goals. -(Admin) Thank you for answering my first question, I am delighted with the features offered by the project, every week they are updating and making important changes that help to improve the ecosystem that surrounds the team. Here you can find all the weekly updates: https://nano.org/en Previously the project was called RaiBlocks, it appeared for the first time in an ad in Bitcoin Talk in 2015. Can you tell us why a name change came up later? -(Zach) Yeah, absolutely. Although the original RaiBlocks name has a special place in our history, it was difficult to pronounce in some areas of the world and caused confusion with certain users. We decided to move to a shorter name that not only was easy to pronounce but also reflected the fast, efficient nature of the protocol. -(Admin) A short and quick name to pronounce, definitely NANO is perfect to define it! My third question is the following; I had seen a very interesting gif early in the chat and it is just about the question that I came to ask. Currently, NANO has 100% of its tokens in circulation and these tokens were distributed through Faucets, so it meant that any user with a computer could get coins simply by completing some captchas, can you tell me which has been the experience of users when using this method? -(Colin) The faucet was a great way for us to distribute coins to people who have never used it before. Cryptocurrencies that use mining end up distributing only to people who have money to buy the mining hardware and this is unfair. We had a lot of people from Indonesia and Asia in the beginning of our distribution and at the end there were a lot of people from South America, Venezuela and Brasil that were getting most of the Nano from the faucet. We think this was a fairer way to do it and it got Nano into the hands of people in different locations, and it had a very positive impact on their lives. -(Admin) This is incredible! thanks for your answer! Can you tell us about what the Open Representative Vote is about and how it protects the network? -(Zach) Nano uses voting to get confirmation on the network instead of mining and the nodes on the network that create votes are called Representatives. Open Representative Voting allows people who have a Nano balance to pick whatever representative they want to vote on their behalf. This allows the people who hold Nano to decide who generates consensus instead of mining companies. The voting process is very efficient and is a big part of what allows Nano to be fee-less and use very little energy. -(Admin) Very good! The last question on my part: Nano PoW is your new approach, I have read a pretty interesting example with emails, can you explain what it is about? -(Colin) Nano PoW is a research project we’re doing in order to create a proof of work algorithm that uses less energy than other popular algorithms. Since Nano is fee-less, there must be a method to limit transactions going onto the network, which this PoW achieves. With the goal of using more memory in the process instead of CPU cycles in order to generate proofs, this new Nano PoW will help prevent ASICs from being able to cheaply send lots of transactions. It’s important for a cryptocurrency that’s used around the world to be energy efficient and green so continuing our research on this is important to us. -(Admin)https://medium.com/nanocurrency/nano-pow-the-details-ba22a9092d6f Thanks for your answers, Colin and Zach! I have a video, taken from your YouTube account that I would like to share with the community https://www.youtube.com/watch?v=eh9pA8UCUrI Can you tell me what we see in this video? -(Colin) This is a video of how fast our transactions send and receive. You can see it takes less than 1 second to finish which means you can use it as a currency. - (Zach) The wallet was made by developers in our amazing community, it is called Natrium. It really shows how fast Nano is and how it is easy-to-use! -(Colin) You can also see how simple it is to use. You just scan, enter an amount, and send. There are no complicated setting which is great for new users and great for adoption. - (Zach) And the best part is, there were no fees at all for that transaction. In fact there have never been any transaction fees on the Nano network ever! -(Admin) Great! That's why I wanted to share it with everyone, yesterday I could try the wallet and it is really spectacular to use, thank you very much for that excellent explanation, please stay with us, now comes the part in which our users participate Segment 3, community questions Q -First congratulations on your project, it is amazing. Now, does nano BlockChain have another use besides making transactions? A - (Zach) Thank you! Nano has always been focused on transfer of value and will continue to maintain that focus. The overall design is aimed at doing only this so it can remain fast, efficient and fee-less. Q -Good evening! I understand that thanks to its architecture called "Block-lattice", each individual provides the computing power necessary to verify their own transaction, thanks to this they do not use miners to confirm transactions and they do not apply commissions of any kind. My question is: How did this occur and how difficult was it? A - (Colin) It’s simila, transactions are validated by votes from the representatives, not by the PoW. The PoW is a way to slow down how fast people can create transactions so they can’t spam the network. Q - Do you have any short or long term projects so that transactions using $NANO were anonymous? A - (Colin) Long term we want to see what privacy options exist and are fast. Most privacy schemes make the transactions very big or slow to process and it’s important for things to remain quick and efficient so we can have fast transactions. Q - We are living in Venezuela many changes in the cryptocurrency sector, the integration of crypto for service payment and product purchases is already a reality. What agreements has NANO made with service stores to integrate it as a means of payment? I want to pay my movie ticket with NANOS A - (Zach) Thanks for your interest in Nano. We are always looking for ways to allow everyone to use Nano in as many places as possible. Although separate from our organization, we are aware of the efforts of the Nano Venezuela organization and try to support them when possible in bringing Nano to as many people and stores in Venezuela as possible. Q - (7 questions made from one persone at once)
How do you manage to make your transactions virtually instantaneous?
How do they create part of the company's livelihood if no fees are charged for transactions?
Why does $ NANO consume so little electricity?
Requirements for a medium-sized company to adopt nano correctly as a means of payment?
Since 100% of the $ NANOS are distributed, I have seen something in Medium that talked about `` Nano PoW '', could you tell me a little more about how it works? What profit will the person / institution get that puts hardware for their PoW? Will more $ NANO be created apart from those already in circulation?
What do the representatives earn for putting their vote and validating blocks if 100% of the $ NANOS are already created / issued?
7- Since your policy / slogan / commandment is to be a cryptocurrency without fees, shouldn't you force exchanges in which $ NANO is present that they don't charge withdrawal fees? A - (Colin)
Transactions are fast because they’re validated by voting. The votes get transmitted around the world in milliseconds and all people have to do is count votes to confirm the transaction.
We use the Dev fund to pay for developing the Nano protocol. The Nano protocol is a free tool that other people can build businesses on. We have ideas for businesses that can use fast, free money in order to help people send money to their family in other countries or pay microtransactions. It’s similar to Linux, it’s free but big companies use it because it saves them money.
Nano uses little electricity because we use voting for validating transactions. Voting is just sending data over the internet which is power efficient.
You can run a nano node with 40-60$/mo using cloud virtual machines
Nano pow is just a more efficient way to slow people down from sending transactions to the network
The most important thing is: why does a company want to use cryptocurrency? They want to use it because it saves them money on bank fees, etc. Since 40-60$/mo running a node is less expensive than their bank fees, they want to participate in the network to keep it going and save them money.
Q - Knowing all this about Nano, could you say that Nano is one of the most energy-efficient, Ecological friendly currencies in existence? A -(Zach) Absolutely. We care about making a positive change in the world and so pride ourselves on leaving as little energy trace possible in the world. It may just be the fastest, most efficient transfer of value available. Q - If the nano protocol had not passed the Red4Sec signature security test, would it have any vulnerability today? A - (Colin) The Red4Sec audit didn’t find any critiral vulnerabilities in Nano. In fact they did the audit twice because they couldn’t find anything wrong and that never happened before. It’s important for us to keep the code high quality and we will do audits again in the future because it’s important to make sure everything is secure. Q - I'd like to see more development of Nano by using SMS on our phones to avoid the problem of no Internet connection at the moment A -(Zach) As much as we like the idea of SMS, unfortunately it is not a secure network so managing Nano transactions over it brings some unique requirements. However we are always innovating and trying to make Nano as easy and accessible as possible so hope advances can help over time make it more accessible in this area. Q - What plans do you have to close this 2019 to increase adoption in Latin America? A -(Colin) We are very excited about the passion we see in the south american community. We would love to make it down to VE however in the mean time follow nanoVE for updates and meetups - there may be one near you soon! Q - How will you make the adoption and use of $ NANO continue to increase especially in markets where other cryptocurrencies are gaining more ground? A - (Colin) Our focus is to build tools people need to accept cryptocurrency. Right now it’s still difficulty and expensive. One thing we’re making is the device Appia which can accept cryptocurrency similar to a credit card. We made this device very inexpensive and can connect over wireless so it can be used in markets or resturaunts or other places cryptocurrency is not yet available. - (Admin) Thank you very much for your answers! You are the first guests that answer all the questions of our users, you are amazing guys! @AndyNano It was amazing to meet you, I learned a lot from you @FundacionNanoVE Thanks for making this happen! excellent work @nano_isam Thanks for everything buddy! -(Zach) Can we ask a question to the channel? What are the top things Nano can do to help you in your daily lives? -(Colin) My question: How do you store cryptocurrency safely? Where do you back up your seed so it isn’t lost or stolen? A - In Venezuela we currently have a problem with conventional payment processors, they are very slow, it would be great to be able to see people using NANO to make their purchases at any store in Venezuela, 0 commissions and instant transactions, is what we need A - Fast transactions are what can help society the most, and except that, the best thing is that it is very cheap ... from there it is addition, those are the main characteristics that we look for the most A - encrypted file in a pendrive A - Nano is a direct competition to the vast majority of Cryptos, in transaction speed and that it is literally free to send or receive, nothing to wait for 5 hours or the next day when you pay for items or services with Crypto, let's increase the adoption of nano! -(Colin) Question: Are there barriers to using Nano in your country right now? A - No barriers in Venezuela A - No barrier what is lacking is greater diffusion in means to give greater projection and that the adoption arrives. Here I am to support NANO! A - There should be no barriers to the payments we wish to make, freedom above all -(Colin) Fantastic! - (Zach) Thanks everyone, I have to go but I appreciate all the awesome questions and answers!
A double-spend occurs when the same funds are spent more than once. The term is used almost exclusively in the context of digital money — after all, you’d have a hard time spending the same physical cash twice. When you pay for a coffee today, you hand cash over to a cashier who probably locks it in a register. You can’t go to the coffee shop across the road and pay for another coffee with the same bill. In digital cash schemes, there’s the possibility that you could. You’ve surely duplicated a computer file before — you just copy and paste it. You can email the same file to ten, twenty, fifty people. Since digital money is just data, you need to prevent people from copying and spending the same units in different places. Otherwise, your currency will collapse in no time. For a more in-depth look at double-spending, check out Double Spending Explained.
Why is Proof of Work necessary?
If you’ve read our guide to blockchain technology, you’ll know that users broadcast transactions to the network. Those transactions aren’t immediately considered valid, though. That only happens when they get added to the blockchain. The blockchain is a big database that every user can see, so they can check if funds have been spent before. Picture it like this: you and three friends have a notepad. Anytime one of you wants to make a transfer of whatever units you’re using, you write it down — Alice pays Bob five units, Bob pays Carol two units, etc. There’s another intricacy here — each time you make a transaction, you refer to the transaction where the funds came from. So, if Bob was paying Carol with two units, the entry would actually look like the following: Bob pays Carol two units from this earlier transaction with Alice. Now, we have a way to track the units. If Bob tries to make another transaction using the same units he just sent to Carol, everyone will know immediately. The group won’t allow the transaction to be added to the notepad. Now, this might work well in a small group. Everyone knows each other, so they’ll probably agree on which of the friends should add transactions to the notepad. What if we want a group of 10,000 participants? The notepad idea doesn’t scale well, because nobody wants to trust a stranger to manage it. This is where Proof of Work comes in. It ensures that users aren’t spending money that they don’t have the right to spend. By using a combination of game theory and cryptography, a PoW algorithm enables anyone to update the blockchain according to the rules of the system.
How does PoW work?
Our notepad above is the blockchain. But we don’t add transactions one by one — instead, we lump them into blocks. We announce the transactions to the network, then users creating a block will include them in a candidate block. The transactions will only be considered valid once their candidate block becomes a confirmed block, meaning that it has been added to the blockchain. Appending a block isn’t cheap, however. Proof of Work requires that a miner (the user creating the block) uses up some of their own resources for the privilege. That resource is computing power, which is used to hash the block’s data until a solution to a puzzle is found. Hashing the block’s data means that you pass it through a hashing function to generate a block hash. The block hash works like a “fingerprint” — it’s an identity for your input data and is unique to each block. It’s virtually impossible to reverse a block hash to get the input data. Knowing an input, however, it’s trivial for you to confirm that the hash is correct. You just have to submit the input through the function and check if the output is the same. In Proof of Work, you must provide data whose hash matches certain conditions. But you don’t know how to get there. Your only option is to pass your data through a hash function and to check if it matches the conditions. If it doesn’t, you’ll have to change your data slightly to get a different hash. Changing even one character in your data will result in a totally different result, so there’s no way of predicting what an output might be. As a result, if you want to create a block, you’re playing a guessing game. You typically take information on all of the transactions that you want to add and some other important data, then hash it all together. But since your dataset won’t change, you need to add a piece of information that is variable. Otherwise, you would always get the same hash as output. This variable data is what we call a nonce. It’s a number that you’ll change with every attempt, so you’re getting a different hash every time. And this is what we call mining. Summing up, mining is the process of gathering blockchain data and hashing it along with a nonce until you find a particular hash. If you find a hash that satisfies the conditions set out by the protocol, you get the right to broadcast the new block to the network. At this point, the other participants of the network update their blockchains to include the new block. For major cryptocurrencies today, the conditions are incredibly challenging to satisfy. The higher the hash rate on the network, the more difficult it is to find a valid hash. This is done to ensure that blocks aren’t found too quickly. As you can imagine, trying to guess massive amounts of hashes can be costly on your computer. You’re wasting computational cycles and electricity. But the protocol will reward you with cryptocurrency if you find a valid hash. Let’s recap what we know so far:
It’s expensive for you to mine.
You’re rewarded if you produce a valid block.
Knowing an input, a user can easily check its hash — non-mining users can verify that a block is valid without expending much computational power.
So far, so good. But what if you try to cheat? What’s to stop you from putting a bunch of fraudulent transactions into the block and producing a valid hash? That’s where public-key cryptography comes in. We won’t go into depth in this article, but check out What is Public-Key Cryptography? for a comprehensive look at it. In short, we use some neat cryptographic tricks that allow any user to verify whether someone has a right to move the funds they’re attempting to spend. When you create a transaction, you sign it. Anyone on the network can compare your signature with your public key, and check whether they match. They’ll also check if you can actually spend your funds and that the sum of your inputs is higher than the sum of your outputs (i.e., that you’re not spending more than you have). Any block that includes an invalid transaction will be automatically rejected by the network. It’s expensive for you to even attempt to cheat. You’ll waste your own resources without any reward. Therein lies the beauty of Proof of Work: it makes it expensive to cheat, but profitable to act honestly. Any rational miner will be seeking ROI, so they can be expected to behave in a way that guarantees revenue.
Proof of Work vs. Proof of Stake
There are many consensus algorithms, but one of the most highly-anticipated ones is Proof of Stake (PoS). The concept dates back to 2011, and has been implemented in some smaller protocols. But it has yet to see adoption in any of the big blockchains. In Proof of Stake systems, miners are replaced with validators. There’s no mining involved and no race to guess hashes. Instead, users are randomly selected — if they’re picked, they must propose (or “forge”) a block. If the block is valid, they’ll receive a reward made up of the fees from the block’s transactions. Not just any user can be selected, though — the protocol chooses them based on a number of factors. To be eligible, participants must lock up a stake, which is a predetermined amount of the blockchain’s native currency. The stake works like bail: just as defendants put up a large sum of money to disincentivize them from skipping trial, validators lock up a stake to disincentivize cheating. If they act dishonestly, their stake (or a portion of it) will be taken. Proof of Stake does have some benefits over Proof of Work. The most notable one is the smaller carbon footprint — since there’s no need for high-powered mining farms in PoS, the electricity consumed is only a fraction of that consumed in PoW. That said, it has nowhere near the track record of PoW. Although it could be perceived as wasteful, mining is the only consensus algorithm that’s proven itself at scale. In just over a decade, it has secured trillions of dollars worth of transactions. To say with certainty whether PoS can rival its security, staking needs to be properly tested in the wild.
Proof of Work was the original solution to the double-spend problem and has proven to be reliable and secure. Bitcoin proved that we don’t need centralized entities to prevent the same funds from being spent twice. With clever use of cryptography, hash functions, and game theory, participants in a decentralized environment can agree on the state of a financial database.
Technical: A Brief History of Payment Channels: from Satoshi to Lightning Network
Who cares about political tweets from some random country's president when payment channels are a much more interesting and are actually capable of carrying value? So let's have a short history of various payment channel techs!
Generation 0: Satoshi's Broken nSequence Channels
Because Satoshi's Vision included payment channels, except his implementation sucked so hard we had to go fix it and added RBF as a by-product. Originally, the plan for nSequence was that mempools would replace any transaction spending certain inputs with another transaction spending the same inputs, but only if the nSequence field of the replacement was larger. Since 0xFFFFFFFF was the highest value that nSequence could get, this would mark a transaction as "final" and not replaceable on the mempool anymore. In fact, this "nSequence channel" I will describe is the reason why we have this weird rule about nLockTime and nSequence. nLockTime actually only works if nSequence is not 0xFFFFFFFF i.e. final. If nSequence is 0xFFFFFFFF then nLockTime is ignored, because this if the "final" version of the transaction. So what you'd do would be something like this:
You go to a bar and promise the bartender to pay by the time the bar closes. Because this is the Bitcoin universe, time is measured in blockheight, so the closing time of the bar is indicated as some future blockheight.
For your first drink, you'd make a transaction paying to the bartender for that drink, paying from some coins you have. The transaction has an nLockTime equal to the closing time of the bar, and a starting nSequence of 0. You hand over the transaction and the bartender hands you your drink.
For your succeeding drink, you'd remake the same transaction, adding the payment for that drink to the transaction output that goes to the bartender (so that output keeps getting larger, by the amount of payment), and having an nSequence that is one higher than the previous one.
Eventually you have to stop drinking. It comes down to one of two possibilities:
You drink until the bar closes. Since it is now the nLockTime indicated in the transaction, the bartender is able to broadcast the latest transaction and tells the bouncers to kick you out of the bar.
You wisely consider the state of your liver. So you re-sign the last transaction with a "final" nSequence of 0xFFFFFFFF i.e. the maximum possible value it can have. This allows the bartender to get his or her funds immediately (nLockTime is ignored if nSequence is 0xFFFFFFFF), so he or she tells the bouncers to let you out of the bar.
Now that of course is a payment channel. Individual payments (purchases of alcohol, so I guess buying coffee is not in scope for payment channels). Closing is done by creating a "final" transaction that is the sum of the individual payments. Sure there's no routing and channels are unidirectional and channels have a maximum lifetime but give Satoshi a break, he was also busy inventing Bitcoin at the time. Now if you noticed I called this kind of payment channel "broken". This is because the mempool rules are not consensus rules, and cannot be validated (nothing about the mempool can be validated onchain: I sigh every time somebody proposes "let's make block size dependent on mempool size", mempool state cannot be validated by onchain data). Fullnodes can't see all of the transactions you signed, and then validate that the final one with the maximum nSequence is the one that actually is used onchain. So you can do the below:
Become friends with Jihan Wu, because he owns >51% of the mining hashrate (he totally reorged Bitcoin to reverse the Binance hack right?).
Slip Jihan Wu some of the more interesting drinks you're ordering as an incentive to cooperate with you. So say you end up ordering 100 drinks, you split it with Jihan Wu and give him 50 of the drinks.
When the bar closes, Jihan Wu quickly calls his mining rig and tells them to mine the version of your transaction with nSequence 0. You know, that first one where you pay for only one drink.
Because fullnodes cannot validate nSequence, they'll accept even the nSequence=0 version and confirm it, immutably adding you paying for a single alcoholic drink to the blockchain.
The bartender, pissed at being cheated, takes out a shotgun from under the bar and shoots at you and Jihan Wu.
Jihan Wu uses his mystical chi powers (actually the combined exhaust from all of his mining rigs) to slow down the shotgun pellets, making them hit you as softly as petals drifting in the wind.
The bartender mutters some words, clothes ripping apart as he or she (hard to believe it could be a she but hey) turns into a bear, ready to maul you for cheating him or her of the payment for all the 100 drinks you ordered from him or her.
Steely-eyed, you stand in front of the bartender-turned-bear, daring him to touch you. You've watched Revenant, you know Leonardo di Caprio could survive a bear mauling, and if some posh actor can survive that, you know you can too. You make a pose. "Drunken troll logic attack!"
I think I got sidetracked here.
Bears are bad news.
You can't reasonably invoke "Satoshi's Vision" and simultaneously reject the Lightning Network because it's not onchain. Satoshi's Vision included a half-assed implementation of payment channels with nSequence, where the onchain transaction represented multiple logical payments, exactly what modern offchain techniques do (except modern offchain techniques actually work). nSequence (the field, but not its modern meaning) has been in Bitcoin since BitCoin For Windows Alpha 0.1.0. And its original intent was payment channels. You can't get nearer to Satoshi's Vision than being a field that Satoshi personally added to transactions on the very first public release of the BitCoin software, like srsly.
Miners can totally bypass mempool rules. In fact, the reason why nSequence has been repurposed to indicate "optional" replace-by-fee is because miners are already incentivized by the nSequence system to always follow replace-by-fee anyway. I mean, what do you think those drinks you passed to Jihan Wu are, other than the fee you pay him to mine a specific version of your transaction?
Satoshi made mistakes. The original design for nSequence is one of them. Today, we no longer use nSequence in this way. So diverging from Satoshi's original design is part and parcel of Bitcoin development, because over time, we learn new lessons that Satoshi never knew about. Satoshi was an important landmark in this technology. He will not be the last, or most important, that we will remember in the future: he will only be the first.
Incentive-compatible time-limited unidirectional channel; or, Satoshi's Vision, Fixed (if transaction malleability hadn't been a problem, that is). Now, we know the bartender will turn into a bear and maul you if you try to cheat the payment channel, and now that we've revealed you're good friends with Jihan Wu, the bartender will no longer accept a payment channel scheme that lets one you cooperate with a miner to cheat the bartender. Fortunately, Jeremy Spilman proposed a better way that would not let you cheat the bartender. First, you and the bartender perform this ritual:
You get some funds and create a transaction that pays to a 2-of-2 multisig between you and the bartender. You don't broadcast this yet: you just sign it and get its txid.
You create another transaction that spends the above transaction. This transaction (the "backoff") has an nLockTime equal to the closing time of the bar, plus one block. You sign it and give this backoff transaction (but not the above transaction) to the bartender.
The bartender signs the backoff and gives it back to you. It is now valid since it's spending a 2-of-2 of you and the bartender, and both of you have signed the backoff transaction.
Now you broadcast the first transaction onchain. You and the bartender wait for it to be deeply confirmed, then you can start ordering.
The above is probably vaguely familiar to LN users. It's the funding process of payment channels! The first transaction, the one that pays to a 2-of-2 multisig, is the funding transaction that backs the payment channel funds. So now you start ordering in this way:
For your first drink, you create a transaction spending the funding transaction output and sending the price of the drink to the bartender, with the rest returning to you.
You sign the transaction and pass it to the bartender, who serves your first drink.
For your succeeding drinks, you recreate the same transaction, adding the price of the new drink to the sum that goes to the bartender and reducing the money returned to you. You sign the transaction and give it to the bartender, who serves you your next drink.
At the end:
If the bar closing time is reached, the bartender signs the latest transaction, completing the needed 2-of-2 signatures and broadcasting this to the Bitcoin network. Since the backoff transaction is the closing time + 1, it can't get used at closing time.
If you decide you want to leave early because your liver is crying, you just tell the bartender to go ahead and close the channel (which the bartender can do at any time by just signing and broadcasting the latest transaction: the bartender won't do that because he or she is hoping you'll stay and drink more).
If you ended up just hanging around the bar and never ordering, then at closing time + 1 you broadcast the backoff transaction and get your funds back in full.
Now, even if you pass 50 drinks to Jihan Wu, you can't give him the first transaction (the one which pays for only one drink) and ask him to mine it: it's spending a 2-of-2 and the copy you have only contains your own signature. You need the bartender's signature to make it valid, but he or she sure as hell isn't going to cooperate in something that would lose him or her money, so a signature from the bartender validating old state where he or she gets paid less isn't going to happen. So, problem solved, right? Right? Okay, let's try it. So you get your funds, put them in a funding tx, get the backoff tx, confirm the funding tx... Once the funding transaction confirms deeply, the bartender laughs uproariously. He or she summons the bouncers, who surround you menacingly. "I'm refusing service to you," the bartender says. "Fine," you say. "I was leaving anyway;" You smirk. "I'll get back my money with the backoff transaction, and posting about your poor service on reddit so you get negative karma, so there!" "Not so fast," the bartender says. His or her voice chills your bones. It looks like your exploitation of the Satoshi nSequence payment channel is still fresh in his or her mind. "Look at the txid of the funding transaction that got confirmed." "What about it?" you ask nonchalantly, as you flip open your desktop computer and open a reputable blockchain explorer. What you see shocks you. "What the --- the txid is different! You--- you changed my signature?? But how? I put the only copy of my private key in a sealed envelope in a cast-iron box inside a safe buried in the Gobi desert protected by a clan of nomads who have dedicated their lives and their childrens' lives to keeping my private key safe in perpetuity!" "Didn't you know?" the bartender asks. "The components of the signature are just very large numbers. The sign of one of the signature components can be changed, from positive to negative, or negative to positive, and the signature will remain valid. Anyone can do that, even if they don't know the private key. But because Bitcoin includes the signatures in the transaction when it's generating the txid, this little change also changes the txid." He or she chuckles. "They say they'll fix it by separating the signatures from the transaction body. They're saying that these kinds of signature malleability won't affect transaction ids anymore after they do this, but I bet I can get my good friend Jihan Wu to delay this 'SepSig' plan for a good while yet. Friendly guy, this Jihan Wu, it turns out all I had to do was slip him 51 drinks and he was willing to mine a tx with the signature signs flipped." His or her grin widens. "I'm afraid your backoff transaction won't work anymore, since it spends a txid that is not existent and will never be confirmed. So here's the deal. You pay me 99% of the funds in the funding transaction, in exchange for me signing the transaction that spends with the txid that you see onchain. Refuse, and you lose 100% of the funds and every other HODLer, including me, benefits from the reduction in coin supply. Accept, and you get to keep 1%. I lose nothing if you refuse, so I won't care if you do, but consider the difference of getting zilch vs. getting 1% of your funds." His or her eyes glow. "GENUFLECT RIGHT NOW." Lesson learned?
Payback's a bitch.
Transaction malleability is a bitchier bitch. It's why we needed to fix the bug in SegWit. Sure, MtGox claimed they were attacked this way because someone kept messing with their transaction signatures and thus they lost track of where their funds went, but really, the bigger impetus for fixing transaction malleability was to support payment channels.
Yes, including the signatures in the hash that ultimately defines the txid was a mistake. Satoshi made a lot of those. So we're just reiterating the lesson "Satoshi was not an infinite being of infinite wisdom" here. Satoshi just gets a pass because of how awesome Bitcoin is.
CLTV-protected Spilman Channels
Using CLTV for the backoff branch. This variation is simply Spilman channels, but with the backoff transaction replaced with a backoff branch in the SCRIPT you pay to. It only became possible after OP_CHECKLOCKTIMEVERIFY (CLTV) was enabled in 2015. Now as we saw in the Spilman Channels discussion, transaction malleability means that any pre-signed offchain transaction can easily be invalidated by flipping the sign of the signature of the funding transaction while the funding transaction is not yet confirmed. This can be avoided by simply putting any special requirements into an explicit branch of the Bitcoin SCRIPT. Now, the backoff branch is supposed to create a maximum lifetime for the payment channel, and prior to the introduction of OP_CHECKLOCKTIMEVERIFY this could only be done by having a pre-signed nLockTime transaction. With CLTV, however, we can now make the branches explicit in the SCRIPT that the funding transaction pays to. Instead of paying to a 2-of-2 in order to set up the funding transaction, you pay to a SCRIPT which is basically "2-of-2, OR this singlesig after a specified lock time". With this, there is no backoff transaction that is pre-signed and which refers to a specific txid. Instead, you can create the backoff transaction later, using whatever txid the funding transaction ends up being confirmed under. Since the funding transaction is immutable once confirmed, it is no longer possible to change the txid afterwards.
Todd Micropayment Networks
The old hub-spoke model (that isn't how LN today actually works). One of the more direct predecessors of the Lightning Network was the hub-spoke model discussed by Peter Todd. In this model, instead of payers directly having channels to payees, payers and payees connect to a central hub server. This allows any payer to pay any payee, using the same channel for every payee on the hub. Similarly, this allows any payee to receive from any payer, using the same channel. Remember from the above Spilman example? When you open a channel to the bartender, you have to wait around for the funding tx to confirm. This will take an hour at best. Now consider that you have to make channels for everyone you want to pay to. That's not very scalable. So the Todd hub-spoke model has a central "clearing house" that transport money from payers to payees. The "Moonbeam" project takes this model. Of course, this reveals to the hub who the payer and payee are, and thus the hub can potentially censor transactions. Generally, though, it was considered that a hub would more efficiently censor by just not maintaining a channel with the payer or payee that it wants to censor (since the money it owned in the channel would just be locked uselessly if the hub won't process payments to/from the censored user). In any case, the ability of the central hub to monitor payments means that it can surveill the payer and payee, and then sell this private transactional data to third parties. This loss of privacy would be intolerable today. Peter Todd also proposed that there might be multiple hubs that could transport funds to each other on behalf of their users, providing somewhat better privacy. Another point of note is that at the time such networks were proposed, only unidirectional (Spilman) channels were available. Thus, while one could be a payer, or payee, you would have to use separate channels for your income versus for your spending. Worse, if you wanted to transfer money from your income channel to your spending channel, you had to close both and reshuffle the money between them, both onchain activities.
Poon-Dryja Lightning Network
Bidirectional two-participant channels. The Poon-Dryja channel mechanism has two important properties:
No time limit.
Both the original Satoshi and the two Spilman variants are unidirectional: there is a payer and a payee, and if the payee wants to do a refund, or wants to pay for a different service or product the payer is providing, then they can't use the same unidirectional channel. The Poon-Dryjam mechanism allows channels, however, to be bidirectional instead: you are not a payer or a payee on the channel, you can receive or send at any time as long as both you and the channel counterparty are online. Further, unlike either of the Spilman variants, there is no time limit for the lifetime of a channel. Instead, you can keep the channel open for as long as you want. Both properties, together, form a very powerful scaling property that I believe most people have not appreciated. With unidirectional channels, as mentioned before, if you both earn and spend over the same network of payment channels, you would have separate channels for earning and spending. You would then need to perform onchain operations to "reverse" the directions of your channels periodically. Secondly, since Spilman channels have a fixed lifetime, even if you never used either channel, you would have to periodically "refresh" it by closing it and reopening. With bidirectional, indefinite-lifetime channels, you may instead open some channels when you first begin managing your own money, then close them only after your lawyers have executed your last will and testament on how the money in your channels get divided up to your heirs: that's just two onchain transactions in your entire lifetime. That is the potentially very powerful scaling property that bidirectional, indefinite-lifetime channels allow. I won't discuss the transaction structure needed for Poon-Dryja bidirectional channels --- it's complicated and you can easily get explanations with cute graphics elsewhere. There is a weakness of Poon-Dryja that people tend to gloss over (because it was fixed very well by RustyReddit):
You have to store all the revocation keys of a channel. This implies you are storing 1 revocation key for every channel update, so if you perform millions of updates over your entire lifetime, you'd be storing several megabytes of keys, for only a single channel. RustyReddit fixed this by requiring that the revocation keys be generated from a "Seed" revocation key, and every key is just the application of SHA256 on that key, repeatedly. For example, suppose I tell you that my first revocation key is SHA256(SHA256(seed)). You can store that in O(1) space. Then for the next revocation, I tell you SHA256(seed). From SHA256(key), you yourself can compute SHA256(SHA256(seed)) (i.e. the previous revocation key). So you can remember just the most recent revocation key, and from there you'd be able to compute every previous revocation key. When you start a channel, you perform SHA256 on your seed for several million times, then use the result as the first revocation key, removing one layer of SHA256 for every revocation key you need to generate. RustyReddit not only came up with this, but also suggested an efficient O(log n) storage structure, the shachain, so that you can quickly look up any revocation key in the past in case of a breach. People no longer really talk about this O(n) revocation storage problem anymore because it was solved very very well by this mechanism.
Another thing I want to emphasize is that while the Lightning Network paper and many of the earlier presentations developed from the old Peter Todd hub-and-spoke model, the modern Lightning Network takes the logical conclusion of removing a strict separation between "hubs" and "spokes". Any node on the Lightning Network can very well work as a hub for any other node. Thus, while you might operate as "mostly a payer", "mostly a forwarding node", "mostly a payee", you still end up being at least partially a forwarding node ("hub") on the network, at least part of the time. This greatly reduces the problems of privacy inherent in having only a few hub nodes: forwarding nodes cannot get significantly useful data from the payments passing through them, because the distance between the payer and the payee can be so large that it would be likely that the ultimate payer and the ultimate payee could be anyone on the Lightning Network. Lessons learned?
We can decentralize if we try hard enough!
"Hubs bad" can be made "hubs good" if everybody is a hub.
Smart people can solve problems. It's kinda why they're smart.
After LN, there's also the Decker-Wattenhofer Duplex Micropayment Channels (DMC). This post is long enough as-is, LOL. But for now, it uses a novel "decrementing nSequence channel", using the new relative-timelock semantics of nSequence (not the broken one originally by Satoshi). It actually uses multiple such "decrementing nSequence" constructs, terminating in a pair of Spilman channels, one in both directions (thus "duplex"). Maybe I'll discuss it some other time. The realization that channel constructions could actually hold more channel constructions inside them (the way the Decker-Wattenhofer puts a pair of Spilman channels inside a series of "decrementing nSequence channels") lead to the further thought behind Burchert-Decker-Wattenhofer channel factories. Basically, you could host multiple two-participant channel constructs inside a larger multiparticipant "channel" construct (i.e. host multiple channels inside a factory). Further, we have the Decker-Russell-Osuntokun or "eltoo" construction. I'd argue that this is "nSequence done right". I'll write more about this later, because this post is long enough. Lessons learned?
Bitcoin offchain scaling is more powerful than you ever thought.
Bitcoin network congestion level — it often happens that due to a sharp jump in the exchange rate, everyone starts sending transactions and the Bitcoin network becomes clogged, fees increase, and many transactions simply get up. Remember that several thousand transactions can be sent at the same time, and the Bitcoin network bandwidth is 7 transactions per second. To unstuck your BTC transactions or speed up Bitcoin confirmations you may need the best bitcoin transaction accelerators just in-case of blockchain traffic congestion. As a very busy businessman, you made a purchase and somehow, you always go for cashless Bitcoin transactions right? It’s faster than paying with traditional fiat currency, you have to wait for rigorous bank protocols or ... Each Bitcoin confirmations represents the total number of blocks that are generated since the block that has your transaction details. For better understanding let’s see how Bitcoin block confirmations work. How Bitcoin block confirmations work? Let’s say you send some Bitcoin to your Friend. Bitcoin Confirmations and Blocks Summary. Bitcoin transactions are bundled into blocks. These blocks are inserted by Bitcoin miners into the Bitcoin ledger of transactions, known as the blockchain.. If your transaction was inside a successfully mined block, you will see it receive 1 confirmation. Bitcoin transactions that deposit BTC into Binance accounts require only 1 confirmation, while Bitcoin withdrawals require 2 confirmations. Ethereum and other ERC-20 Ethereum Standard tokens need only 12 confirmations for both withdrawals and deposits. How many Bitcoin Confirmations are Enough? 0. Payments with 0 confirmations can still be reversed! Wait for at least one. 1. One confirmation is enough for small Bitcoin payments less than $1,000. 3. Enough for payments $1,000 - $10,000. Most exchanges require 3 confirmations for deposits. 6. Enough for large payments between $10,000 - $1,000,000. Six is standard for most transactions to be ... Many newbies who have just got involved in the blockchain may feel surprised when they are told that “A successful bitcoin transfer needs 6 confirmations.” Why are 6 confirmations are needed? Does it refer to the confirmation of 6 bitcoin mining workers on the network? Here in the article, we would like to explain the principles in detail. If you are a long-term Bitcoin (BTC) miner, then the DGB ASIC mining option will probably work for you as you know all the nuances of such a miner. Mining Digibyte with ASIC is a fast way to get DGB. However, it must be taken into consideration that each ASIC miner is tailored to a particular protocol. Best Digibyte (DGB) Mining Hardware . Algorithm : ASIC Miner : Hashrate: Cost : DGB Scrypt ...
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