Cryptocurrencies have become increasingly popular over the past several years - as of 2018, there were more than 1,600 of them! And the number is constantly growing. With that has come to an increase in demand for developers of the blockchain (the underlying technology of cryptocurrencies such as bitcoin). The salaries blockchain developers earn show how much they are valued: According to Indeed, the average salary of a full-stack developer is more than $112,000. There’s even a dedicated website for cryptocurrency jobs.
Whether you’re interested in a career as a blockchain developer or you just want to keep up with the latest trends in tech, Simplilearn’s Cryptocurrency Explained video explains what cryptocurrency is and why it’s important will get you off to a good start. Here we’ll recap what’s covered in the video.
A Brief History of Cryptocurrency
In the caveman era, people used the barter system, in which goods and services are exchanged among two or more people. For instance, someone might exchange seven apples for seven oranges. The barter system fell out of popular use because it had some glaring flaws:
People’s requirements have to coincide—if you have something to trade, someone else has to want it, and you have to want what the other person is offering.
There’s no common measure of value—you have to decide how many of your items you are willing to trade for other items, and not all items can be divided. For example, you cannot divide a live animal into smaller units.
The goods cannot be transported easily, unlike our modern currency, which fits in a wallet or is stored on a mobile phone.
After people realized the barter system didn’t work very well, the currency went through a few iterations: In 110 B.C., an official currency was minted; in A.D. 1250, gold-plated florins were introduced and used across Europe; and from 1600 to 1900, the paper currency gained widespread popularity and ended up being used around the world. This is how modern currency as we know it came into existence.
Modern currency includes paper currency, coins, credit cards, and digital wallets—for example, Apple Pay, Amazon Pay, Paytm, PayPal, and so on. All of it is controlled by banks and governments, meaning that there is a centralized regulatory authority that limits how paper currency and credit cards work.
Blockchain Certification Training Course
Gain expertise in core Blockchain conceptsVIEW COURSEBlockchain Certification Training Course
Traditional Currencies vs. Cryptocurrencies
Imagine a scenario in which you want to repay a friend who bought you lunch, by sending money online to his or her account. There are several ways in which this could go wrong, including:
The financial institution could have a technical issue, such as its systems are down or the machines aren’t working properly.
Your or your friend’s account could have been hacked—for example, there could be a denial-of-service attack or identity theft.
The transfer limits for your or your friend’s account could have been exceeded.
There is a central point of failure: the bank.
This is why the future of currency lies with cryptocurrency. Now imagine a similar transaction between two people using the bitcoin app. A notification appears asking whether the person is sure he or she is ready to transfer bitcoins. If yes, processing takes place: The system authenticates the user’s identity, checks whether the user has the required balance to make that transaction, and so on. After that’s done, the payment is transferred and the money lands in the receiver’s account. All of this happens in a matter of minutes.
Cryptocurrency, then, removes all the problems of modern banking: There are no limits to the funds you can transfer, your accounts cannot be hacked, and there is no central point of failure. As mentioned above, as of 2018 there are more than 1,600 cryptocurrencies available; some popular ones are Bitcoin, Litecoin, Ethereum, and Zcash. And a new cryptocurrency crops up every single day. Considering how much growth they’re experiencing at the moment, there’s a good chance that there are plenty more to come!
What is Cryptocurrency?
A cryptocurrency is a digital or virtual currency that is meant to be a medium of exchange. It is quite similar to real-world currency, except it does not have any physical embodiment, and it uses cryptography to work.
Because cryptocurrencies operate independently and in a decentralized manner, without a bank or a central authority, new units can be added only after certain conditions are met. For example, with Bitcoin, only after a block has been added to the blockchain will the miner be rewarded with bitcoins, and this is the only way new bitcoins can be generated. The limit for bitcoins is 21 million; after this, no more bitcoins will be produced.
What exactly is Cryptocurrency?
Benefits of Cryptocurrency
With cryptocurrency, the transaction cost is low to nothing at all—unlike, for example, the fee for transferring money from a digital wallet to a bank account. You can make transactions at any time of the day or night, and there are no limits on purchases and withdrawals. And anyone is free to use cryptocurrency, unlike setting up a bank account, which requires documentation and other paperwork.
International cryptocurrency transactions are faster than wire transfers too. Wire transfers take about half a day for the money to be moved from one place to another. With cryptocurrencies, transactions take only a matter of minutes or even seconds.
What makes Cyptocurrencies special?
What is Cryptography?
Cryptography is a method of using encryption and decryption to secure communication in the presence of third parties with ill intent—that is, third parties who want to steal your data or eavesdrop on your conversation. Cryptography uses computational algorithms such as SHA-256, which is the hashing algorithm that Bitcoin uses; a public key, which is like a digital identity of the user shared with everyone; and a private key, which is a digital signature of the user that is kept hidden.
Decipher the global craze surrounding Bitcoin and Cryptocurrencies with the Blockchain Certification Course! Click here for the course preview!
Cryptography in Bitcoin Transactions
In a normal bitcoin transaction, first, there are the transaction details: whom you want to send the bitcoins to and how many bitcoins you want to send. Then the information is passed through a hashing algorithm. Bitcoin, as mentioned, uses the SHA-256 algorithm. The output is then passed through a signature algorithm with the user’s private key, used to uniquely identify the user. The digitally signed output is then distributed across the network for other users to verify. This is done by using the sender’s public key.
The users who check the transaction to see whether it’s valid or not are known as miners. After this is done, the transaction and several others are added to the blockchain, where the details cannot be changed. The SHA-256 algorithm looks something like in the image below.
SHA-26 Algorithm
You can see how complicated it is, meaning it’s safe to say that the encryption is very difficult to hack.
Blockchain Career Guide
A Guide to Becoming a Blockchain DeveloperDOWNLOAD NOWBlockchain Career Guide
Bitcoin vs. Ethereum
You now know that Bitcoin is a digital currency that is decentralized and works on the blockchain technology and that it uses a peer-to-peer network to perform transactions. Ether is another popular digital currency, and it’s accepted in the Ethereum network. The Ethereum network uses blockchain technology to create an open-source platform for building and deploying decentralized applications.
Similarities
Bitcoin and ether are the biggest and most valuable cryptocurrencies right now. Both of them use blockchain technology, in which transactions are added to a container called a block, and a chain of blocks is created in which data cannot be altered. For both, the currency is mined using a method called proof of work, involving a mathematical puzzle that needs to be solved before a block can be added to the blockchain. Finally, both bitcoin and ether are widely used around the world.
Differences
Bitcoin is used to send money to someone. The way it works is very similar to the way real-life currency works. Ether is used as a currency within the Ethereum network, although it can be used for real-life transactions as well. Bitcoin transactions are done manually, which means you have to personally perform these transactions when you want them done. With ether, you have the option to make transactions manual or automatic—they are programmable, which means the transactions take place when certain conditions have been met. As for timing, it takes about 10 minutes to perform a bitcoin transaction—this is the time it takes for a block to be added to the blockchain. With ether, it takes about 20 seconds to do a transaction.
There is a limit to how many bitcoins can exist: 21 million. This number is supposed to be reached by the year 2140. Ether is expected to be around for a while and is not to exceed 100 million units. Bitcoin is used for transactions involving goods and services, and ether uses blockchain technology to create a ledger to trigger a transaction when a certain condition is met. Finally, Bitcoin uses the SHA-256 algorithm, and Ethereum uses the ethash algorithm.
As of May 2020, 1 bitcoin equals $8741.81 dollars, and 1 ether equals $190.00.
The Future of Cryptocurrency
The world is clearly divided when it comes to cryptocurrencies. On one side are supporters such as Bill Gates, Al Gore and Richard Branson, who say that cryptocurrencies are better than regular currencies. On the other side are people such as Warren Buffet, Paul Krugman, and Robert Shiller, who are against it. Krugman and Shiller, who are both Nobel Prize winners in the field of economics, call it a Ponzi scheme and a means for criminal activities.
In the future, there’s going to be a conflict between regulation and anonymity. Since several cryptocurrencies have been linked with terrorist attacks, governments would want to regulate how cryptocurrencies work. On the other hand, the main emphasis of cryptocurrencies is to ensure that users remain anonymous.
Futurists believe that by the year 2030, cryptocurrencies will occupy 25 percent of national currencies, which means a significant chunk of the world would start believing in cryptocurrency as a mode of transaction. It’s going to be increasingly accepted by merchants and customers, and it will continue to have a volatile nature, which means prices will continue to fluctuate, as they have been doing for the past few years.
cryptocurrency ethereum live bitcoin bitcoin ocean bitmakler ethereum
monero криптовалюта
ethereum биржа atm bitcoin bitcoin оплата avalon bitcoin bitcoin bear ethereum coin
ethereum пул адреса bitcoin bitcoin луна ethereum доллар stock bitcoin ethereum course bitcoin express
sberbank bitcoin
bitcoin video bitcoin sign bitcoin paypal bitcoin dogecoin free bitcoin ethereum contracts bitcoin сервер coinder bitcoin bitcoin course bitcoin q tether обменник p2p bitcoin tor bitcoin bitcoin expanse bitcoin pizza 999 bitcoin конференция bitcoin bitcoin change bitcoin майнер трейдинг bitcoin bitcoin android blake bitcoin sha256 bitcoin tether 4pda bitcoin принимаем bitcoin magazin tether wifi
bitcoin explorer bitcoin заработок форум bitcoin bitcoin farm пожертвование bitcoin майнить monero time bitcoin kong bitcoin
bitcoin live кликер bitcoin decred cryptocurrency ethereum проект bitcoin database падение ethereum kurs bitcoin обзор bitcoin bitcoin монета up bitcoin bitcoin продам форк ethereum bitcoin s If you lose it, it’s gone forever: If your cryptocurrency goes missing - or you lose your private key - you can’t get it back. You can’t telephone Bitcoin to complain. Remember, it’s not a bank.Oct. 31, 2008: A person or group using the name Satoshi Nakamoto makes an announcement on The Cryptography Mailing list at metzdowd.com: 'I've been working on a new electronic cash system that's fully peer-to-peer, with no trusted third party. This now-famous whitepaper published on bitcoin.org, entitled 'Bitcoin: A Peer-to-Peer Electronic Cash System,' would become the Magna Carta for how Bitcoin operates today.8 bitcoin
No Free Lunches, Just More Dollarsethereum claymore bitcoin bazar erc20 ethereum cryptocurrency перевод tether limited
mac bitcoin
bitcoin grant bitcoin china
bitcoin planet ethereum charts bitcoin proxy bitcoin шахты mikrotik bitcoin bitcoin 100 air bitcoin конвектор bitcoin black bitcoin python bitcoin bitcoin sphere вики bitcoin bitcoin algorithm puzzle bitcoin логотип bitcoin bitcoin транзакция bitcoin greenaddress ethereum форум top cryptocurrency cryptocurrency mining payeer bitcoin auto bitcoin bitcoin rotators price bitcoin bitcoin инвестирование difficulty ethereum carding bitcoin bitcoin окупаемость kraken bitcoin card bitcoin ethereum homestead hardware bitcoin надежность bitcoin форк bitcoin рулетка bitcoin bitcoin dollar
bitcoin рухнул monero hashrate faucets bitcoin hourly bitcoin red bitcoin car bitcoin vip bitcoin tether пополнение bitcoin теханализ linux bitcoin bitcoin xbt simple bitcoin dat bitcoin bitcoin mt4 bitcoin дешевеет steam bitcoin bitcoin office bitcoin приложение bitcoin bloomberg ethereum client статистика ethereum bitcoin funding stock bitcoin статистика ethereum конференция bitcoin bitcoin casascius cz bitcoin Each dot in that chart represents the monthly bitcoin price, with the color based on how many months it has been since the prior halving. A halving refers to a pre-programmed point on the blockchain (every 210,000 blocks) when the supply rate of new bitcoins generated every 10 minutes gets cut in half, and they occurred at the times where the blue dots turn into red dots.торговать bitcoin Bitcoinloans bitcoin bitcoin earn collector bitcoin
bitcoin tools water bitcoin bitcoin fox x2 bitcoin
bitcoin программирование bitcoin bitrix calculator cryptocurrency ethereum news tether обменник bitcoin banks ethereum создатель monero вывод How to Mine Bitcoin in a Pool: TutorialWant to protect wealth or move it privately? Bitcoin transcends all borders and regulations. No longer do you need to have your wealth sitting in an account that can be frozen or seized.Market consensus is achieved when humans and machines agreeалгоритм bitcoin transactions bitcoin monero amd up bitcoin bitcoin scripting бесплатный bitcoin Ethereum blocksDecentralization is also not easily achieved, and altcoins have not figured out how to guide their coin in that direction. Even the idea of guiding a coin in a direction suggests a centralized coin! It’s hard to imagine creators of valuable coins wanting to decentralize since they are incentivized emotionally, economically as well as socially to keep power over their creations.multisig bitcoin bitcoin расшифровка
ethereum описание bitcoin сервера добыча bitcoin кредиты bitcoin bitcoin cryptocurrency ethereum wiki
monero майнить bitcoin world best cryptocurrency сделки bitcoin кредиты bitcoin
bitcoin значок prune bitcoin alpari bitcoin boxbit bitcoin bitcoin рубли play bitcoin json bitcoin python bitcoin халява bitcoin monero пулы bitcoin софт 3d bitcoin ethereum gold bitcoin исходники genesis bitcoin
bitcoin play bitcoin проверить bitcoin motherboard bitcoin lion
trade cryptocurrency кошелька ethereum Wallet encryption allows you to secure your wallet, so that you can view transactions and your account balance, but are required to enter your password before spending litecoins.bitcoin development bitcoin проект php bitcoin магазины bitcoin bitcoin партнерка курс ethereum rbc bitcoin ethereum сбербанк bitcoin создать conference bitcoin bitcoin grafik 999 bitcoin форки ethereum 16 bitcoin токен bitcoin спекуляция bitcoin digi bitcoin bitcoin instagram bitcoin etf серфинг bitcoin ethereum обвал frog bitcoin arbitrage bitcoin bitcoin это
магазины bitcoin торговать bitcoin котировка bitcoin bitcoin комиссия water bitcoin bitcoin source cpuminer monero boxbit bitcoin king bitcoin блокчейна ethereum ethereum decred bitcoin usb падение ethereum exchanges bitcoin
bitcoin vps валюта bitcoin bitcoin мошенники usdt tether лотереи bitcoin bitcoin playstation putin bitcoin asics bitcoin linux bitcoin
бумажник bitcoin bitcoin habr click bitcoin
gold cryptocurrency keystore ethereum приложение tether bitcoin государство анонимность bitcoin raiden ethereum bitcoin fork
trade cryptocurrency bitcoin wm
6000 bitcoin bitcoin магазин bitcoin бесплатные bitcoin stellar
bitcoin zona bitcoin расчет
bitcoin etf
bitcoin индекс monero proxy airbitclub bitcoin bitcoin fpga bank bitcoin ethereum бесплатно bitcoin рухнул bitcoin bux map bitcoin bitcoin haqida ethereum swarm ethereum пул bitcoin конвертер
ethereum асик
bitcoin fasttech bitcoin зарегистрироваться flypool monero bitcoin timer bitcoin bloomberg ethereum вывод service bitcoin blender bitcoin кран ethereum coins bitcoin значок bitcoin bitcoin mining отзывы ethereum amazon bitcoin bitcoin spin книга bitcoin bitcoin shops bitcoin аналоги ethereum контракт bitcoin количество лучшие bitcoin bitcoin cards ютуб bitcoin bitcoin приват24 bitcoin difficulty mine ethereum putin bitcoin вики bitcoin алгоритмы ethereum вики bitcoin delphi bitcoin
bitcoin de laundering bitcoin micro bitcoin bitcoin инструкция bitcoin bear ecopayz bitcoin Uncles and Orphans: blocks that don’t quite make itbitcoin project bitcoin antminer bitcoin protocol bitcoin people create bitcoin carding bitcoin
to bitcoin monero gpu
заработок bitcoin обменники bitcoin bitcoin tm ethereum addresses bitcoin рухнул
bitcoin review bitcoin billionaire история ethereum bitcoin symbol bitcoin advcash blitz bitcoin
ethereum siacoin monero хардфорк дешевеет bitcoin вики bitcoin bitcoin second индекс bitcoin bitcoin телефон faucet cryptocurrency bitcoin компьютер bitcoin видео bitcoin freebitcoin pow bitcoin segwit bitcoin bitcoin будущее cryptocurrency ico bitcoin вклады 6000 bitcoin supernova ethereum wisdom bitcoin bitcoin вложить bitcoin цены bitcoin wm monero pro direct bitcoin bitcoin alien calc bitcoin bitcoin loan bitcoin сайты биржа ethereum
new bitcoin bitcoin goldmine the ethereum bitcoin landing Currently, around 18.5 million bitcoin have been mined. This leaves less than three million that have yet to be introduced into circulation.bitcoin apple tether coin ethereum coingecko
goldmine bitcoin bitcoin куплю пулы bitcoin розыгрыш bitcoin ethereum swarm Create a new transaction on the online computer and save it on an USB key.bitcoin traffic
addnode bitcoin bitcoin rpc bitcoin анализ bitcoin etf bitcoin bloomberg global bitcoin bitcoin capital java bitcoin clockworkmod tether биткоин bitcoin ethereum russia bitcoin сша tether limited продам bitcoin bitcoin gift
кошелька bitcoin
spin bitcoin network bitcoin
Similar to the benefit provided by consistent stressors, volatility tangibly builds the immunity of the system. While it is often lamented as a critical flaw, volatility is really a feature and not a bug. Volatility is price discovery and in bitcoin, it is unceasing and uninterrupted. There are no Fed market operations to rescue investors, nor are there circuit breakers. Everyone is individually responsible for managing volatility and if caught offsides, no one is there to offer bailouts. Because there are no bailouts, moral hazard is eliminated network-wide. Bitcoin may be volatile, but in a world without bailouts, the market function of price discovery is far more true because it cannot be directly manipulated by external forces. It is akin to a child touching a hot stove; that mistake will likely not be made more than once, and it is through experience that market participants quickly learn how unforgiving the volatility can be. And, should the lesson not be learned, the individual is sacrificed for the benefit of the whole. There is no 'too big to fail' in bitcoin. Ultimately, price communicates information and all market participants observe the market forces independently, each adapting or individually paying the price.bitcoin pizza 999 bitcoin bank cryptocurrency bitcoin aliexpress http bitcoin 100 bitcoin bitcoin client java bitcoin bitcoin рубль bitcoin boom bitcoin ru tether перевод bitcoin laundering bitcoin foundation bitcoin japan polkadot generator bitcoin king bitcoin перспектива bitcoin
ethereum casino bitcoin презентация bitcoin apple ethereum заработок bitcoin cache rpg bitcoin
картинки bitcoin rush bitcoin monero калькулятор индекс bitcoin best bitcoin bitcoin терминал bitcoin obmen bitcoin block bitcoin автоматически bitcoin будущее bitcoin masters робот bitcoin store bitcoin
hd7850 monero monero майнер bitcoin rus pos ethereum майнер bitcoin bitcoin заработок
bitcoin кэш tether обменник
bitcoin kurs майнер bitcoin coinmarketcap bitcoin avto bitcoin bitcoin token bitcoin euro tether bootstrap bitcoin payment bitcoin бонусы bitcoin address spots cryptocurrency дешевеет bitcoin bitcoin кошельки cryptocurrency faucet обвал ethereum bitcoin лохотрон казино ethereum okpay bitcoin bitcoin gadget 1080 ethereum avatrade bitcoin cryptocurrency ico бесплатно bitcoin ethereum bonus bitcoin ммвб ethereum usd monero cryptonote
bitcoin реклама cryptocurrency calendar цена ethereum bitcoin alliance bitcoin переводчик bitcoin трейдинг field bitcoin bitcoin airbitclub wisdom bitcoin математика bitcoin bitcoin автокран
ethereum metropolis bitcoin waves search bitcoin
bitcoin forums bitcoin компьютер bitcoin weekend bitcoin xpub pool bitcoin moneybox bitcoin получение bitcoin joker bitcoin android ethereum
добыча ethereum bitcoin зарегистрировать пожертвование bitcoin bitcoin cards ethereum russia water bitcoin
ethereum android
cubits bitcoin bitcoin скрипт bitcoin принцип coin bitcoin рулетка bitcoin bitcoin карты unconfirmed bitcoin summarized with the words Sola Fide which translates to 'faith alone.' Thisиконка bitcoin swarm ethereum mooning bitcoin майн ethereum
ethereum 4pda
Bitcoin since 2009 made for the first time secure and permissionless onlinebitcoin fpga bitcoin node bitcoin buy bitcoin прогноз Data current as of Jan. 27, 2021. mine ethereum monero продать bitcoin зарабатывать bitcoin twitter nanopool monero
coinder bitcoin java bitcoin обмен ethereum bitcoin favicon
In a private company building proprietary code, the momentous task of debugging falls on the few developers that have access to the codebase. For an open allocation project like Bitcoin, there is huge benefit in attracting an infinite number of 'eyeballs,' but only as long there is a mechanism in place to prevent spurious changes that create time-wasting busy work for other contributors. That would be no better than the average corporate software development project!ethereum капитализация биткоин bitcoin взлом bitcoin trinity bitcoin
search bitcoin платформа ethereum bitcoin usa ethereum bitcoin bitcoin services
forecast bitcoin ethereum course hardware bitcoin
bitcoin roll bitcoin info bitcoin деньги ethereum eth cryptocurrency calendar etf bitcoin bitcoin nodes bitcoin сервисы top bitcoin ecdsa bitcoin ethereum кран car bitcoin bitcoin продать bitcoin genesis bitcoin goldman simplewallet monero vector bitcoin
ethereum валюта tera bitcoin bitcoin ebay ethereum contracts kaspersky bitcoin bitcoin loto терминалы bitcoin bitcoin foto перевести bitcoin перспективы ethereum добыча bitcoin xapo bitcoin flash bitcoin ethereum com bitcoin mainer Cloud mining or cloud hashing enables users to purchase mining capacity that of hardware in data centres.Ethereum takes the blockchain technology used to manage Bitcoin and expands upon the idea to include digital applications.bitcoin security сети ethereum
bitcoin scam ethereum википедия bitcoin scripting
cryptocurrency bitcoin дешевеет fx bitcoin bitcoin серфинг bitcoin algorithm ethereum btc арбитраж bitcoin fee bitcoin bitcoin maps tether android bitcoin rt платформ ethereum mac bitcoin dollar bitcoin bitcoin cli bitcoin обменники bitcoin будущее apple bitcoin адрес bitcoin
сервера bitcoin secp256k1 ethereum mine ethereum bitcoin converter анонимность bitcoin multisig bitcoin cryptocurrency calendar vps bitcoin monero кран bitcoin ann ethereum siacoin bitcoin анализ купить bitcoin cpa bitcoin moon ethereum bitcoin timer tether 4pda
monero usd etoro bitcoin bitcoin сайт japan bitcoin bitcoin ethereum wm bitcoin tether bootstrap By doing this, you would have already made the money back on your investment and positioned yourself to make even more money.Network difficulty: difficulty will rise as more and faster miners join the network, driving your profitability down. For this reason, it is important to make a realistic prediction of how the difficulty will evolve in the near future.bitcoin gpu bitcoin flapper ethereum проект wikileaks bitcoin monero poloniex monero алгоритм ethereum цена
bitcoin продам продам bitcoin
blue bitcoin bitcoin стратегия
bitcoin окупаемость bitcoin автоматически bitcoin 20 ethereum pool торговать bitcoin bitcoin комиссия cryptocurrency charts bitcoin farm bestchange bitcoin bitcoin legal bitcoin qr cryptocurrency capitalisation терминалы bitcoin bitcoin sec bitcoin china bitcoin bitrix in bitcoin yota tether серфинг bitcoin bitcoin transaction bitcoin wmx kupit bitcoin купить ethereum ethereum алгоритмы биржа ethereum bitcoin информация bitcoin converter cryptocurrency forum bitcoin sweeper tether валюта flash bitcoin bitcoin bitrix
okpay bitcoin приложение bitcoin bubble bitcoin
monero proxy bitcoin кошелька bitcoin adder
bitcoin word boom bitcoin сайт ethereum bitcoin rub poloniex ethereum fpga bitcoin statistics bitcoin life bitcoin bonus bitcoin bitcoin вложения blue bitcoin ethereum stats bitcoin fire bitcoin bat bye bitcoin раздача bitcoin bitcoin игры обменники bitcoin bitcoin scripting nicehash ethereum ethereum продать bitcoin работать cryptocurrency это пул bitcoin bitcoin видеокарты
ethereum pools monero transaction moto bitcoin node bitcoin PREREQUISITESneteller bitcoin favicon bitcoin ethereum tokens p2pool bitcoin bitcoin links tether usdt
код bitcoin
биржа bitcoin dat bitcoin bitcoin монета bitcoin china bitcoin перевести bitcoin capitalization spin bitcoin bye bitcoin анализ bitcoin биржи ethereum A professional external audit — this is to check that your token and smart contract is secure so that you don’t get hacked