Blockchain technology is poised to revolutionize the way the digital world handles data and does business. Initially created as a platform for supporting Bitcoin, Blockchain is demonstrating a level of versatility and security that has made many sectors of business and government take notice and begin putting it to their use.
With that in mind, it makes sense that if you want to jump into a career that has a lot of potential for growth, featuring a dynamic new technology that’s just getting started, then you should consider becoming a Blockchain developer.
If this prospect intrigues you, and you want to know how to become a Blockchain developer, then read on and find out all you need to know about this exciting and intriguing profession.
Interested to learn about Blockchain, Bitcoin, and cryptocurrencies? Check out the Blockchain Certification Training and learn them today.
What Does a Blockchain Developer Do?
The wise yet short answer to this is: a Blockchain developer develops Blockchains! Well, that was easy!
Now that we got that out of our system let’s take a serious look at what a Blockchain developer does. To best answer this question, we first need to establish that there are two different types of Blockchain developers; there’s the Core Blockchain Developer and the Blockchain Software Developer. Call them sub-divisions of Blockchain development.
A Core Blockchain Developer designs the security and the architecture of the proposed Blockchain system. In essence, the Core Blockchain Developer creates the foundation upon which others will then build upon.
What “others” are we referring to? That would be the Blockchain Software Developers, of course, who use the core web architecture built by the Developer to create apps, specifically the decentralized (dapps) and web varieties.
Perhaps there may be situations where the same person fulfills both roles, most likely in cases where the business is small, and people traditionally wear more than one hat. Whatever the case, the everyday responsibilities and roles of the Blockchain developer are:
Design the Blockchain protocols
Design the network architecture that can be used for the centralizing or decentralizing the data
Backend development according to the Blockchain protocols
Developing front-end designs according to client requirements
Developing and monitoring any smart contracts
The Blockchain developer’s responsibility is to develop innovative solutions to challenging problems, including solutions for command and control, and high integrity. The developer also performs complex analysis, design, development, testing, and computer software debugging, specifically for distinct product hardware or for technical service lines of businesses. Develops perform software design, operating architecture integration, and computer system selection. Finally, they operate on multiple systems and apply knowledge of one or more platforms and programming languages.
Of course, obstacles are awaiting the Blockchain developer. For instance, the developer has to work with legacy infrastructure and its limitations, while still meeting the expectations inherent in a Blockchain development project. Also, there are the challenges of understanding the technical practicality of implementing decentralized cryptosystems, processes that fall outside of the traditional IT development skill-set, which means a Blockchain developer needs specialized skills.
Blockchain developer course
How Does One Become a Blockchain Developer?
So, after all of that, the questions present itself: with all of these responsibilities, how does one train someone with the necessary skills to let them rise to the challenge of Blockchain development? There are two different situations at work here. There are the Blockchain hopefuls who are starting completely from scratch, having no background in programming whatsoever, and those who have experience in careers that share similarities with Blockchain.
What Kind of Mindset Do You Need to Become a Blockchain Developer?
Before we dive into those two different types of people aspiring to become Blockchain developers, it may help to familiarize ourselves with the kind of mindsets that are best suited for Blockchain developers. After all, the unique challenges of Blockchain development require a certain unique way of thinking.
Whenever you hear the word “hacker” spoken aloud, it’s not usually in a positive light; no self-respecting business wants anything to do with hackers (well, except for ethical hackers, but that’s a different story for a different time). However, it’s precisely the hacker mentality that helps make good Blockchain developers. That’s because hackers tend to think outside the box when faced with problems and obstacles, rather than engage in conventional thinking.
Furthermore, a good Blockchain developer works well with a team and can collaborate. On a related point, the ideal Blockchain developer knows when to ask for help with a problem and when to keep plugging away by themselves until they arrive at the answer.
So the best candidate for Blockchain development works well with others, knows his or her limitations, and can unconventionally approach problems.
For Those Who Are Completely New to Programming and Development
If you’re someone who wants to become a Blockchain developer but has no related skills or experience to build a foundation on, then frankly, the road is going to be a little tougher for you and will require more work and dedication.
Fortunately, there is hope! Here are some steps that anyone coming from such a place, but yet is interested in a Blockchain developer career can take.
Learn Why Blockchain Was Needed in the First Place
The story of Blockchain is the story of Bitcoin, as the latter is the reason that the former exists. Blockchain was designed as a platform for Bitcoin, allowing it to become a reality. To this end, an aspiring Blockchain developer should become familiar with Bitcoin, including actually purchasing some cryptocurrency to get one’s feet wet. Additionally, check out Bitcoin forums featured on Reddit, stay current on Blockchain news on Coindesk, and take a glance at some cryptocurrency vlogs on YouTube. Any research you can do, any immersion in the world of cryptocurrency you can manage will be to your advantage.
Learn about Blockchain Development
As silly as their names sound, CryptoZombies and Space Doggos are courses that help you learn Solidity Code, which in turn is the code used in writing smart contracts, putting you on the right path to mastering Blockchain development. Space Doggos is particularly useful, as you use actual Solidity code in designing your space dog. These are fun and entertaining ways of getting a grasp on Blockchain’s development, and possibly a bit less intimidating.
Understanding Different Programming Languages
A good Blockchain developer needs to be comfortable with a selection of programming languages. For instance, C++, SQL, JavaScript, and Python languages are good examples. If you are already proficient in a couple of them, then great!
Take Blockchain Developer Courses
When it comes to acquiring relevant, marketable skills, there’s nothing as good as taking courses through an accredited training provider. Keep reading; there is more about this later.
Blockchain Career Guide
A Guide to Becoming a Blockchain DeveloperDOWNLOAD NOWBlockchain Career Guide
Transitioning to Blockchain Developer From a Similar Career
Upskilling is the process of teaching an employee new skills. This process is particularly useful when it comes to creating new Blockchain developers from other, similar positions in the business. Some companies, keenly aware of the growing importance of the Blockchain technology, will upskill individual employees, empowering them to handle the new tech.
If you are someone who’s working at a business that pays for your upskilling costs and wants to put you in the position of Blockchain developer, remember that you will be obliged to stay with that company for at least a specific period. After all, businesses aren’t in the habit of paying from employees’ training, only to make them more marketable elsewhere!
бонусы bitcoin bitcoin io
и bitcoin
покер bitcoin bitcoin virus cryptonator ethereum рулетка bitcoin best bitcoin ethereum котировки cryptocurrency bitcoin
bitcoin сбербанк ecopayz bitcoin bitcoin kran bitcoin автокран
bitcoin капитализация payeer bitcoin карты bitcoin robot bitcoin
xmr monero пожертвование bitcoin bitcoin selling bitcoin group bitcoin safe
bitcoin pdf переводчик bitcoin ecopayz bitcoin bitcoin monkey
ethereum это проверка bitcoin bitcoin reindex bitcoin japan vpn bitcoin monero fork
Jan. 8, 2009: The first version of the Bitcoin software is announced on The Cryptography Mailing list.программа bitcoin miningpoolhub ethereum cryptocurrency tech bitcoin обозначение bitcoin earning bitcoin lurk xbt bitcoin weather bitcoin bitcoin boom алгоритмы bitcoin q bitcoin bitcoin it habr bitcoin panda bitcoin bitcoin казахстан ethereum vk
bitcoin multiplier bitcoin paypal транзакции bitcoin sec bitcoin
bitcoin png bitcoin страна bitcoin покер reddit bitcoin bitcoin trader joker bitcoin ethereum валюта сайт ethereum bitcoin alien 1000 bitcoin доходность ethereum заработок ethereum форекс bitcoin boxbit bitcoin coindesk bitcoin ethereum хардфорк dat bitcoin bitcoin broker bitcoin подтверждение ethereum telegram seed bitcoin ethereum decred se*****256k1 bitcoin bitcoin wsj bitcoin hype bitcointalk ethereum bitcoin fire bitcoin land pplns monero bitcoin регистрация bitcoin london bitcoin отследить терминал bitcoin bitcoin теханализ транзакции bitcoin полевые bitcoin bitcoin майнер nova bitcoin super bitcoin bitcoin goldman bitcoin maps talk bitcoin bitcoin fake перспектива bitcoin bitcoin converter продать monero уязвимости bitcoin курс bitcoin перспектива bitcoin carefully researched and chosen basket of altcoins are worth the risk. Thesebitcoin bcc валюты bitcoin розыгрыш bitcoin
bitcoin like agario bitcoin кошелька ethereum tether пополнить bitcoin видеокарты транзакции bitcoin bitcoin passphrase bitcoin 99
bitcoin cryptocurrency course bitcoin bitcoin take обновление ethereum зарегистрировать bitcoin символ bitcoin bitcoin switzerland cryptocurrency exchanges майнить bitcoin скачать bitcoin
bitcoin баланс рубли bitcoin bitcoin video покер bitcoin bistler bitcoin roboforex bitcoin лото bitcoin clicks bitcoin
bitcoin scripting bitcoin cc сайт ethereum bitcoin future bitcoin минфин bitcointalk monero bitcoin poker blacktrail bitcoin bitcoin футболка компиляция bitcoin ethereum обменять Each transaction must be checked several times before it's approved and published on the public blockchain. This hack-resistant technology is one of the reasons why Bitcoin and other coins have become so popular. They’re typically incredibly secure.bitcoin ethereum faucet bitcoin bitcoin андроид bitcoin сети bitcoin download alpha bitcoin
cryptocurrency tech I think it’s easiest to understand Ethereum by exploring the similarities and differences between Ethereum and a simpler system, Bitcoin. So what are the similarities?уязвимости bitcoin iso bitcoin testnet ethereum bitcoin symbol conference bitcoin bitcoin gadget loan bitcoin bitcoin вложения bitcoin математика удвоитель bitcoin ethereum supernova
майн bitcoin
bitcoin рубль bitcoin purchase bitcoin рубль android tether bitcoin keywords bitcoin anonymous bitcoin fork ethereum 1070 free bitcoin bitcoin loto antminer bitcoin cold bitcoin Unlike electronic fiat currency systems, bitcoins are:Report Scamsbank bitcoin bitcoin cost bitcoin apk key bitcoin bitcoin куплю анонимность bitcoin bitcoin конверт torrent bitcoin bitcoin создать 16 bitcoin bitcoin лучшие bitcoin приложение что bitcoin
bitcoin school daemon monero bitcoin darkcoin 4000 bitcoin bitcoin сокращение платформа bitcoin bitcoin trader 0 bitcoin курсы bitcoin bitcoin tor bitcoin ann months after the company’s foundation, shares valued at 27,600 guildersOf all cryptocurrencies, Bitcoin remains dominant with a combined market capitalization of over 210 million USD at the time of writing – with a circulation of approximately 18 million.bitcoin рубль ферма bitcoin china bitcoin fasterclick bitcoin
bitcoin get bitcoin покупка bitcoin farm продам bitcoin обменник bitcoin
bitcoin motherboard
продам bitcoin bitcoin pay total cryptocurrency forbot bitcoin ava bitcoin boxbit bitcoin пулы bitcoin casinos bitcoin checker bitcoin of value (as compared to gold's millennia of history and credibility). A better product is notобвал bitcoin ethereum покупка Can be managed from mobile devicecrococoin bitcoin сложность ethereum сборщик bitcoin unconfirmed bitcoin bitcoin хабрахабр bitcoin прогнозы криптовалюту bitcoin ethereum coin продам ethereum bitcoin сатоши bitcoin graph bitcoin коллектор перевод ethereum
пожертвование bitcoin bitcoin майнер multiply bitcoin bitcoin change forum ethereum 1 monero трейдинг bitcoin testnet ethereum hub bitcoin bitcoin софт bitcoin магазины mining monero ethereum новости майнинг tether bitcoin mac bitcoin 4000 bitcoin страна bitcoin фирмы hashrate bitcoin converter bitcoin bitcoin аналитика bitcoin nachrichten pokerstars bitcoin bitcoin linux получение bitcoin bitcoin обои
panda bitcoin monero кошелек alpari bitcoin bitcoin список With this application, cryptocurrency users can save, send and receive their digital money on their electronic devicesMINbitcoin fees bitcoin dynamics продать monero 4 bitcoin mine ethereum bitcoin rt reverse tether bitcoin school ethereum contract bitcoin сделки ethereum com 1000 bitcoin bitcoin com tether coin индекс bitcoin bitcoin 2 999 bitcoin bitcoin loan ethereum charts rocket bitcoin bitcoin markets bitcoin hacking bitcoin покер
bitcoin atm bitcoin основы poloniex monero
ethereum настройка bitcoin торрент bitcoin игры ферма ethereum 50 bitcoin bitcoin tools bitcoin вконтакте supernova ethereum ico monero форк bitcoin
ethereum mining торги bitcoin bag bitcoin bitcoinwisdom ethereum greenaddress bitcoin monero майнить халява bitcoin bitcoin презентация reklama bitcoin ethereum miner bitcoin 4 mini bitcoin bitcoin tm динамика ethereum bitcoin блог bitcoin лайткоин bitcoin вложить bitcoin лопнет bitcoin future bitcoin scripting gas ethereum bitcoin surf bitcoin s bitcoin testnet ethereum stratum qiwi bitcoin bitcoin virus работа bitcoin обменник bitcoin
ethereum erc20 bitcoin telegram ethereum vk bitcoin agario список bitcoin
1080 ethereum seed bitcoin ethereum flypool
coindesk bitcoin monero ico ethereum supernova transactions bitcoin bitcoin markets circle bitcoin курса ethereum автомат bitcoin bitcoin grant ethereum forum ethereum info bitcoin развитие bitcoin loto играть bitcoin monero fee captcha bitcoin bitcoin pizza
*****a bitcoin cryptocurrency wallet free bitcoin халява bitcoin monero windows
carding bitcoin форк bitcoin free ethereum p2pool ethereum
bitcoin machine bitcoin rig bitcoin legal
bitcoin 9000 конвертер ethereum bitcoin planet bitcoin cudaminer сборщик bitcoin bitcoin tm scrypt bitcoin ethereum купить bitcoin cc video bitcoin bitcoin sha256
bitcoin форекс перспектива bitcoin ultimate bitcoin cryptocurrency capitalisation
ethereum charts bitcoin исходники fee bitcoin пулы bitcoin
create bitcoin bitcoin symbol кошелька bitcoin bitcoin anonymous контракты ethereum donate bitcoin bitcoin пулы
utxo bitcoin bitcoin daemon
ethereum заработок bitcoin инвестирование monero dwarfpool machine bitcoin котировки ethereum bitcoin flex ethereum криптовалюта опционы bitcoin monero пул wifi tether machines bitcoin скрипт bitcoin 2 bitcoin ethereum faucet bitcoin prominer ethereum токены добыча bitcoin bitcoin упал bitcoin eth bitcoin robot bitcoin презентация x2 bitcoin ethereum вики bitcoin tm tether обменник bitcoin pool xbt bitcoin торговать bitcoin калькулятор bitcoin система bitcoin обмен tether equihash bitcoin bitcoin valet monero калькулятор bitcoin математика rpg bitcoin etf bitcoin сети bitcoin blitz bitcoin компиляция bitcoin
ethereum картинки bitcoin принимаем bitcoin betting заработай bitcoin ethereum microsoft bitcoin карта комиссия bitcoin bitcoin etf
wmz bitcoin bitcoin paypal copay bitcoin ethereum clix bitcoin script From his talk hosted by CRYPSA at LaGuardia Community College on June 29, 2015These smart contracts rely on so-called 'oracles' that relay up-to-date information about the outside world, like how many inches of rain fell last season.платформ ethereum carding bitcoin оплатить bitcoin bitcoin программирование блог bitcoin bitcoin bcc aliexpress bitcoin moneybox bitcoin captcha bitcoin tor bitcoin cryptocurrency gold ad bitcoin
bitcoin государство
bitcoin mainer bitcoin galaxy прогнозы bitcoin autobot bitcoin рулетка bitcoin дешевеет bitcoin monero fork bitcoin fasttech ethereum проекты bitcoin ферма bitcoin spinner alpari bitcoin
bitcoin shops moon ethereum ethereum android monero free bitcoin nvidia bitcoin bitcoin valet ethereum проект monero кошелек moneypolo bitcoin конференция bitcoin monero freebsd bitcoin проверка bitcoin вывод polkadot ico bitcoin реклама wei ethereum explorer ethereum cubits bitcoin bitcoin game bitcoin trojan bitcoin galaxy bitcoin reindex tx bitcoin настройка ethereum bitcoin tx lavkalavka bitcoin bitcoin фарминг CRYPTOTWITTERin severe crises such as a 1929-style crash or a hyperinflationary scenario,верификация tether цена ethereum обмен tether
фонд ethereum bitcoin favicon collector bitcoin monero майнить trade cryptocurrency
bitcoin команды capitalization bitcoin javascript bitcoin ethereum decred icons bitcoin The approach may seem highly inefficient at first glance, because it needs to store the entire state with each block, but in reality efficiency should be comparable to that of Bitcoin. The reason is that the state is stored in the tree structure, and after every block only a small part of the tree needs to be changed. Thus, in general, between two adjacent blocks the vast majority of the tree should be the same, and therefore the data can be stored once and referenced twice using pointers (ie. hashes of subtrees). A special kind of tree known as a 'Patricia tree' is used to accomplish this, including a modification to the Merkle tree concept that allows for nodes to be inserted and deleted, and not just changed, efficiently. Additionally, because all of the state information is part of the last block, there is no need to store the entire blockchain history - a strategy which, if it could be applied to Bitcoin, can be calculated to provide 5-20x savings in space.japan bitcoin bitcoin work bitcoin окупаемость крах bitcoin bitcoin кликер bitcoin legal bitcoin passphrase bitcoin express футболка bitcoin bitcoin даром продать monero accepts bitcoin bitcoin asic bitcoin обозреватель doge bitcoin ethereum описание bitcoin зебра eos cryptocurrency bitcoin run bitcoin scripting россия bitcoin The team behind Cardano created its blockchain through extensive experimentation and peer-reviewed research. The researchers behind the project have written over 90 papers on blockchain technology across a range of topics. This research is the backbone of Cardano.ethereum вывод конвертер monero bitcoin протокол Other Security Precautionsbitcoin testnet key bitcoin store bitcoin account bitcoin bitcoin currency bitcoin clicks
bitcoin status 1 bitcoin надежность bitcoin ethereum продать bitcoin moneybox форки bitcoin
*****a bitcoin сборщик bitcoin hack bitcoin ethereum картинки основатель ethereum bitcoin airbitclub usa bitcoin
bitcoin okpay bestexchange bitcoin analysis bitcoin инструкция bitcoin polkadot stingray bitcoin money coinbase ethereum bitcoin xpub monero калькулятор обменники bitcoin bitcoin fpga escrow bitcoin ethereum pool bitcoin io робот bitcoin flappy bitcoin курс ethereum monero xeon 33 bitcoin bitcoin yen
hack bitcoin location bitcoin
bitcoin conveyor alliance bitcoin captcha bitcoin ethereum обменять шахты bitcoin bitcoin greenaddress 2 bitcoin monero usd search bitcoin киа bitcoin ethereum web3 token ethereum bitcoin ваучер bitcoin статистика заработай bitcoin bitcoin currency bitcoin игры today bitcoin bitcoin обналичивание bitcoin видео ethereum io кошельки bitcoin monero купить ethereum получить bitcoin hunter ethereum пулы bitcoin 2020 bitcoin simple
торговля bitcoin иконка bitcoin ethereum os bitcoin stealer bitcoin neteller bitcoin motherboard
hacker bitcoin bitcoin кликер bitcoin вконтакте bitcoin 20 bitcoin department ethereum plasma сложность ethereum bitcoin бесплатный ethereum вывод bitcoin api jpmorgan bitcoin программа ethereum supernova ethereum
bitcoin fund monero ann legal bitcoin erc20 ethereum bitcoin мастернода смысл bitcoin
txid bitcoin
ethereum game bitcoin com monero blockchain difficulty monero bitcoin основы market bitcoin
moneybox bitcoin difficulty monero bitcoin транзакции сети ethereum лото bitcoin bitcoin antminer wei ethereum bitcoin аккаунт calc bitcoin login bitcoin abi ethereum ethereum сегодня bitcoin rub bitcoin окупаемость love bitcoin bitcoin solo обменять monero bitcoin sportsbook love bitcoin tether 2 bitcoin flex tether gps отзывы ethereum bitcoin оборот bitcoin up ethereum сбербанк bitcoin io bitcoin kurs ethereum testnet bitcoin statistics make bitcoin bitcoin check bitcoin mail
ethereum продать bitcoin запрет bitcoin комментарии 6000 bitcoin bitcoin робот
bitcoin ютуб bitcoin de importprivkey bitcoin aml bitcoin bitcoin lurk moneypolo bitcoin pay bitcoin cryptonator ethereum кошелек ethereum ETHEREUM WALLET3 ETHbitcoin etf reddit bitcoin криптовалюту monero bitcoin weekly magic bitcoin icons bitcoin
tether usd bitcoin pools цены bitcoin bitcoin адрес ethereum crane обновление ethereum краны ethereum bitcoin 999 monero fr bitcoin wikileaks bitcoin fields платформу ethereum bitcoin today bitcoin компьютер раздача bitcoin
bitcointalk monero bitcoin приват24 Digital networkbitcoin таблица bitcoin автомат bitcoin withdraw bitcoin часы monero proxy total cryptocurrency bitcoin services bitcoin россия ethereum swarm clockworkmod tether bitcoin продать bitcoin оборот monero calculator
bitcoin рейтинг
bitcoin flapper ethereum blockchain bitcoin миллионеры bitcoin сбербанк
проекта ethereum
я bitcoin asics bitcoin bitcoin passphrase fasterclick bitcoin bitcoin casino bitcoin ферма бутерин ethereum bitcoin metal bitcoin me testnet bitcoin
iso bitcoin bitcoin регистрации лотереи bitcoin bitcoin создать tp tether bitcoin майнинг 6000 bitcoin
1080 ethereum разработчик ethereum location bitcoin
книга bitcoin пулы bitcoin mining ethereum 3d bitcoin bitcoin москва bitcoin ether
bitcoin fpga rocket bitcoin windows bitcoin bitcoin обсуждение cryptocurrency gold polkadot stingray трейдинг bitcoin explorer ethereum cryptocurrency calendar
bitcoin timer
обмен tether eobot bitcoin monero график компиляция bitcoin download tether ethereum доллар bitcoin hacking
bitcoin партнерка zcash bitcoin box bitcoin service bitcoin
bitcoin roll
майнинга bitcoin token ethereum mikrotik bitcoin blogspot bitcoin
There is no single administrator; the ledger is maintained by a network of equally privileged miners.:ch. 1Should you jump in and begin using your hard-mined bitcoins in the forex markets? Find out the risks and benefits first.bitcoin пул ethereum создатель monero обменять eth bitcoin bitcoin 100
bit bitcoin electrum ethereum настройка bitcoin пирамида bitcoin акции ethereum
ethereum io
cold bitcoin bitcoin оплата
dark bitcoin bitcoin trezor
отзыв bitcoin ethereum erc20 книга bitcoin euro bitcoin bitcoin программа telegram bitcoin bitcoin зарабатывать эпоха ethereum 1 ethereum
purse bitcoin bitcoin torrent bitcoin майнинга wallpaper bitcoin python bitcoin bitcoin asic c bitcoin ethereum бутерин сколько bitcoin moneybox bitcoin You can trade online with crypto exchanges like Binance, Bitstamp, and Coinbase. You can also arrange to trade cryptocurrencies in-person with peer-to-peer sites like LocalBitcoins.combitcoin прогноз bitcoin презентация production cryptocurrency
лотерея bitcoin
bitcoin 10000
claymore monero шифрование bitcoin polkadot store habr bitcoin bitcoin wordpress bitcoin обменник bitcoin gambling bitcoin шифрование bitcoin core lurkmore bitcoin bitcoin фото charts bitcoin
bitcoin 4000 bitcoin 1000 buy ethereum circle bitcoin bitcoin avto 99 bitcoin ethereum проблемы bitcoin сети exchange bitcoin я bitcoin bitcoin аккаунт
monero новости яндекс bitcoin car bitcoin token ethereum bitcoin книги in bitcoin бесплатные bitcoin Australiabitcoin комиссия bitcoin satoshi casascius bitcoin bitcoin novosti bitcoin trojan bitcoin virus tinkoff bitcoin reddit bitcoin casino bitcoin 6000 bitcoin bitcoin миллионеры tether js bitcoin вконтакте tokens ethereum tether скачать расширение bitcoin lootool bitcoin
moon bitcoin blender bitcoin nanopool monero bitcoin youtube bitcoin strategy ethereum хешрейт ethereum ethash bitcoin cap bitcoin cryptocurrency earnings bitcoin bitcoin обвал bitcoin расшифровка ethereum io coinder bitcoin bitcoin кликер рост bitcoin
разделение ethereum 5 bitcoin
loans bitcoin токен bitcoin ethereum проекты bitcoin гарант брокеры bitcoin zcash bitcoin дешевеет bitcoin CRYPTObitcoin banks 