Blockchain 工作与竞赛

Blockchain is a distributed register that is used to maintain a continuously growing list of records, called blocks. It has revolutionary applications in finance (such as cryptocurrencies like Bitcoin) and decentralized applications like online voting.
注册并开始赚钱
注册来开始赚钱。 您是a Blockchain Developer吗?您可以从这些工作中获得报酬!

浏览Freelancer上的工作

项目/竞赛 描述 竞标数/参赛作品数 技能 已开始 结束 价格(HKD)
fork bitcoin I need a developer to fork bitcoin into a new cryptocurrency with wallet. 4 Bitcoin, Blockchain, Ethereum Feb 24, 2018 今天6天 20时 $13816
PHP, 网站设计, HTML5, Blockchain, Ethereum Feb 24, 2018 今天6天 20时
Airdrop Ethereum ERC20 Tokens I need a basic smart contract that will allow me to airdrop my own ERC20 token. Please only apply if you work with smart contracts. I need to be able to send X amount of tokens to multiple Ethereum addresses. My budget for this basic smart contract is $50-$70 2 Blockchain, Ethereum Feb 24, 2018 今天6天 18时 $493
create a website for Bitcoin, Ethereum, Ripple wallet with send and receive options We need to create a website for Bitcoin, Ethereum, Ripple wallet with send and receive options. 7 PHP, 网站设计, HTML, Bitcoin, Blockchain Feb 24, 2018 今天6天 17时 $7701
Teach how to create a new crypto currency Need some one to teach me how to create a new currency by using bitcoin repository, I did this for old version of litecoin 2 密码学, Bitcoin, Blockchain Feb 24, 2018 今天6天 16时 $149
MCCC -- 2 Blockchain contents platform smart contract and web base user matching engine 10 PHP, Javascript, Blockchain Feb 24, 2018 今天6天 13时 $56846
Project for Ruihe R. Ruihe, I'm looking for an explanation about how to build a blockchain in python. How do I create a decentralised network, create a wallet, and PoS. The discussion will be for a few hours. Are you interested? 1 Python, 软件构架, , Bitcoin, Blockchain, Ethereum Feb 23, 2018 今天9天 11时 $164
Explain Blockchain to our Team Our team is having some difficulty understanding how the blockchain works from a technology standpoint. We need a blockchain expert preferably who understand python to discuss the programming logic behind a decentralised network. The call will be in 3 hours and the conversation is expected to be for 1-2 hours. The goal of the discussion is to explain to the team: The theory of creating a bloc... 8 C 编程, Python, 建筑结构, 软件构架, Blockchain Feb 23, 2018 今天6天 10时 $202
Crypto Forum Poster I need someone to create thread on 20-27 different crypto forums. I will provide the content and forum url list, just copy and paste and make look nice. Must send me a link to the threads once they have been created so I can respond. 8 网络市场, 论坛发贴, 分类发布, Blockchain Feb 23, 2018 今天6天 6时 $211
Monero fork with masternodes No knowledge about Blockchain, Masternodes, C++, nodejs ?? then please don't reply on this project. Project: - Fork / Design a privacy coin: Monero - Create a new blockchain setup several nodes to support the network (And tell us requirments: the hardware / miners / servers whatever needed) - Clean code is important - Add extra privacy options f.e. darksend / tor implementation; - ... 9 C 编程, 软件构架, C++编程, node.js, Blockchain Feb 23, 2018 今天6天 5时 $133203
Create an simple ethereum smart contract to send already public tokens to multiple wallets Hey. I need a simple ethereum smart contract made. This smart contract will only send an said amount of tokens to multiple defined wallets. This will send an already public token (Tron, bnb eth..) from my own wallet into multiple other wallets with an amount that i can define. 9 合同, Blockchain, Ethereum Feb 23, 2018 今天6天 5时 $1271
Master Scheduler Chronicled is the arguably the greatest supply chain company in the world through block-chain technology. We want to achieve everything they have and more. For this very purpose we require someone who can schedule everything accordingly and on time. Preference will be given to those who have had experience on the chronicled platform to understand become the greatest. Please visit [链接已删除,请登录查看] to ... 3 商业分析, Scheme, Blockchain Feb 23, 2018 今天6天 3时 $1776
Hyperledger installation and small smart contract sample The goals of the project are: - Hyperledger installation in a server provided for us. - Deploy of small smart contract sample 5 Ubuntu, Blockchain, IBM Bluemix Feb 23, 2018 今天6天 1时 $3669
Cryptocurrency faucet for any altcoin I would like a website, cryptocurrency faucet, created in php, that can support any alt coin currency. The website design is not required, only functionality of the faucet. The faucet needs to have: -user registration (optional) -anti bot / proxy detection -manual payout -referral system Please send me the link if you have already done a project like this. I need the project to be done ... 9 PHP, Javascript, 网站设计, HTML, Blockchain Feb 23, 2018 今天6天 1时 $203
Create masternode DASH x11 fork cryptocurrency We are a team of web designers and and social media marketers who are looking for a talented developer to join us in creating a new exciting masternode cryptocurrency. We are looking for 1/2 developers. A share of the coins premise will be an option for the right developer as well as future input into the project. The project will be launched with Twitter, Discord, Slack etc. If you are familia... 10 C 编程, Bitcoin, 编程, Blockchain, Ethereum Feb 23, 2018 今天6天 $42266
Blockchain Development-ICO Blockchain Development-Initial coin offering: Here is a list I require for Block chain development for My IDEA/Upcoming Startup. Basically I want to run my ICO for my IDEA .Any experience development profession who can build all tech related stuff to offer ICO to Other needed. I need complete proposal which developer will provide from start to end.. 13 Java, Bitcoin, Blockchain, Ethereum Feb 23, 2018 Feb 23, 20185天 23时 $28257
simple how to demo video we seek someone able to handle a series of how-to youtube videos to qualify for the next round please take part in this contest and create a simple how to youtube video including english voice where navigate to [链接已删除,请登录查看] website u follow download link u download the wallet and u start it first time on ur pc. winner of this contest we will contact for follow up jobs too maybe (as this is just... 0 Blockchain, 英语拼写, YouTube Feb 23, 2018 Feb 23, 201812天 21时 $782
Make a new cryptocurrency from forknote I neeed a new coin from forknote/CryptoNote. It can be made in less than 30 min. I need everything: wallet, blockchain, pool, explorer, github repository. All material is free in internet. Please need to be like those two links: [链接已删除,请登录查看] or [链接已删除,请登录查看] Those link above teach and show how to do. The specifications I will send later. It is very easy, in the video t... 14 网络安全, Bitcoin, 编程, Blockchain, Ethereum Feb 23, 2018 Feb 23, 20185天 20时 $4585
create an ERC20 token for an ICO plus landingpage + whitepaper we are launching an ico , in order to this we need to create a wallpaper a landing page and an ERC20 token on Ethereum blockchain . We need a perfect English writer. 18 C++编程, Blockchain, Ethereum Feb 23, 2018 Feb 23, 20185天 19时 $57454
UK blogger/Vlogger wanted, to talk about our ICO Project. Must have a Huge following. Please send us any work you have completed, including youtube videos, if you are a vlogger. Must know about the initial coin offering (ICO) market and any experience in the crypto community/market would be beneficial. 1 社交网络, YouTube, Article Writing, Blockchain, Blog Writing Feb 23, 2018 Feb 23, 20185天 17时 $219
Coders for New ERC-20 based CryptoCoin Coding & ICO Website Hello to Freelancer's great Coders, We are looking for crypto experts, visionaries and game changers, to join our Team to create a new cryptocurrency and ICO platform, catering a nice market and providing global payment solutions to that market. Our coin would be the only available crypto in that market, due to tight regulations, licenses, infrastructure and distribution capabilities. T... 15 PHP, C 编程, Python, Blockchain, Ethereum Feb 22, 2018 Feb 22, 20185天 6时 $39192
Blockchain Developer I want to talk with Blockchain Developer fast. I have a lot of jobs and specs. If you are ok, show me your skills to me. Thanks 15 PHP, node.js, Bitcoin, Blockchain Feb 22, 2018 Feb 22, 20185天 5时 $167
Research Crypto software research Just make a project for research for cryptocurrency platform and give skills Blockchain, cryptocurrency, Bitcoin, ethereum 9 密码学, Bitcoin, 软件开发, Blockchain, Ethereum Feb 22, 2018 Feb 22, 20185天 2时 $1463
Create CryptoCurrency - Algo Neoscript or Skein Hi, We looking for an dev expert on crypto currency / blockchain domain, for create our own crypto currency coin. Our requirement is : Create an coin Hybrid PoW/PoS cryptocurrency based on Skein algorithm or Neoscrypt and feature hybrid PoW/PoS stage. Algo : NEOSCRYPT OR SKEIN Proof of Work / Proof of Stake / Masternodes Total supply: 69.000.000 More details will send to you per... 34 node.js, Bitcoin, Blockchain, Ethereum Feb 22, 2018 Feb 22, 20184天 17时 $48271
BLOCKCHAIN DEVELOPER NEEDED! BTC + ERC20 Web Wallets Hello I have an existing investing platform where people can use my erc20 token as utility token. I am searching for a Blockchain developer to realise the following: 1. one BTC web wallet for each user (deposit + withdrawal) 2. one ERC20 web wallet for each user (deposit + withdrawal) every user has to have his own wallet where he can deposit and withdrawal hes funds. The design and ... 13 Bitcoin, Blockchain Feb 22, 2018 Feb 22, 20184天 16时 $2691
Crypto-Engineer Chronicled is the untouched leader in supply chain solutions by leveraging block-chain. We want to be at the top. We want to hire someone who is experienced in cryptography as well as software application. Knowing a thing or two about Chronicled platform will be given preference. Please visit [链接已删除,请登录查看] to know their business model before applying for this job. 10 工程, 密码学, Blockchain Feb 22, 2018 Feb 22, 20184天 15时 $1713
Solidity for ICO Message me then you will know further. 11 Blockchain, Ethereum Feb 22, 2018 Feb 22, 20184天 15时 $1870
Blockhain Parser Cryptocurrency Bitcoin BTC C# The application should be multi-threaded at least the initial Sync. The application must parse the **entire** bitcoin blockchain / chainstate db folder. The application needs to extract all BTC Addresses with Balance > 0 in the fastest possible way. These addresses has to fill a List1 ( BlockchainAdresses ) Could be stored in a database to update it later. A second List (MyBTCAdresses) nee... 15 C 编程, 大数据, Bitcoin, 编程, Blockchain Feb 22, 2018 Feb 22, 20184天 14时 $8207
Create ERC20 Token , Website , WhitePaper, Wallet I am looking a person or agency who can fullfill our following requirement ERC20 Token WhitePaper ( Will discuss ) KYL/AMC Verification Login DashBoard for Customer Website Token Economics Web Wallet & Mobile Wallet With Audit and Github Ready Need Quality,Secure, BugFree (Removed by Freelancer.com Admin) 13 Blockchain, Ethereum Feb 22, 2018 Feb 22, 20184天 14时 $31591
Verify solidity smart contract. I have written 90% of code of an ICO smart contract. I just need someone who can advise and make some amendment. 5 Blockchain, Ethereum Feb 22, 2018 Feb 22, 20184天 14时 $1393
Looking for Node.js and WebSocket Expert for trading Site Need ONLY Node.js and websocket Expert with at least 3 years experience . Must have good knowledge about Exchange API such as Bitrrex, Quoinex and etc.. Only Exert.I will test skill and in this project deadline is very important 20 软件构架, node.js, Express JS, Blockchain, Ethereum Feb 21, 2018 Feb 21, 20184天 10时 $4436
ICO Basic White Paper I need someone expereinced freelancer who can write I CO reseach paper, crypto currency articles. This is a regualr job so please bid only if you are experience in research paper writing. Wants only 4 pages and the budget is $20. Please share your previous research paper samples. Thanks. 12 技术写作, Article Writing, Research Writing, 内容写作, Blockchain Feb 21, 2018 Feb 21, 20184天 7时 $250
blockchain based working model I need a new website. I need you to design and build my personal website. 13 PHP, 网站设计, 平面设计, 博客安装, Blockchain Feb 21, 2018 Feb 21, 20184天 1时 $1309
Create a Cryptocurrency on Ethereum and launch ICO website - 21/02/2018 10:08 EST Need a developer for Creating a cryptocurrency on ethereum and launch an ICO website. I have basic idea of developing and deploying it on ethereum wallet, need an website for launching ICO and create a new cryptocurrency. Thanks. 9 Blockchain Feb 21, 2018 Feb 21, 20183天 22时 $21111
Crypto Currency Platform UNIQUE COIN Lend Loan Pay ’s operations are animated by the ERC-20 compatible LLP Token. Airlines, property managers or other vendors sending inventory to the platform will be required to hold a balance of LLP Tokens small account opening fee $99.99- Commissions due to our Vendor sites by Ie Hotel Owner will be charged fortnightly -payments to Hotel Owner instant or fortnightly depends set up. ,. Likewi... 2 网站设计, 平面设计, 电子商务, Blockchain, Ethereum Feb 21, 2018 Feb 21, 20183天 20时 $9812
Build Cryptocurrency exchange platform. I need blockchain expert. I need site similar https://token.store. You must have enough experience in erc20 token, smart contract and web3js. Please let me know if you can do. 9 PHP, HTML5, Bitcoin, Blockchain, Ethereum Feb 21, 2018 Feb 21, 20183天 19时 $58841
Make Crytocurrency / coin with adjustable masternode rewards What I mean by this is that you should apply the coding or logic by which I will be able to change masternode rewards of the coin per block. OR you can make some code / logic to give ALL masternodes 50 coins per block. If there are 50 masternodes then every masternode gets 50 coins per block. If there are 100 masternodes, then also every masternode gets 50 coins per block Project Type: One-t... 15 Bitcoin, Blockchain, Ethereum Feb 21, 2018 Feb 21, 20183天 15时 $18753
coin developement we want to develope crypto currency 18 Python, 密码学, Blockchain Feb 21, 2018 Feb 21, 20183天 15时 $93599
Blockchain Developer I’m looking to hire a blockchain developer for my new business venture and need to rely on a developer for expertise and technical implementation. The basis of the work will be a private blockchain with a front end for users to access specific information. The requirements are: • The goal is for this to be a blockchain as a service • Needs to work similar to Microsoft Azure co... 37 PHP, 软件构架, 网络主机, Blockchain, Ethereum Feb 21, 2018 Feb 21, 20183天 15时 $25027
Sell Blockchain messenger need to sell my project or create/join to/ a team which have similar goals. i have a first full Blockchain Messenger. have core. mobile app for android. web. it is contains two parts: 1-st - only wallet for alt-coin, 2-nd - messenger according core and blockchain. 13 网络市场, 市场, Bitcoin, Blockchain Feb 21, 2018 Feb 21, 20183天 14时 $31059
I would like to hire a Blockchain Developer I want to hire a experienced blockchain website developer for cryptocurrency business, who developed a good & easy User Interface website. 7 Blockchain Feb 21, 2018 Feb 21, 20183天 14时 $4998
Project for Valentin S. Hi Valentin S., I noticed your profile and would like to offer you my project. We can discuss any details over chat. 1 C 编程, C# 编程, C++编程, , 应用程序开发, Blockchain Feb 20, 2018 Feb 20, 20186天 7时 $1956
Crypto currancey Etherium AlT coins Java Browser Online Miner [链接已删除,请登录查看] as reference : Our Cloud mining system will allow anyone to set up a miner with ease from our platform/website app You must understand Blockchain / Java / Mining set up requirements . Agreement Based on Milestones and Proof of skill Task One: Set up server cloud miner code to mine Etherium from our server using CPU/GPU resources Task Two: Create online browser access to ... 11 PHP, Java, Javascript, Bitcoin, Blockchain Feb 20, 2018 Feb 20, 20183天 7时 $156
Blockchain Neoscrypt who can build qt wallets and can use github codes? 12 Blockchain Feb 20, 2018 Feb 20, 20183天 2时 $5452
Design & Develop an ICO website using Wordpress Hi, Looking for capable designer & development team to design & develop an ICO website using wordpress. Our favored ICO websites are [链接已删除,请登录查看] [链接已删除,请登录查看] [链接已删除,请登录查看] Please list your previous website design & development that has login/register function. Your design sample needs to be line with the favored websites we listed. If it's ICO website even better! C... 38 WordPress, HTML, Bitcoin, Blockchain, Ethereum Feb 20, 2018 Feb 20, 20183天 $408
LIVE coin price scanner for BINANCE Hello Freelancers, This scanner should be designed to notice price increase over a small period of time for specified coins. Price data can be scrapped from Binance via API. You should know how to get the data, I cannot offer help. Data should be stored in a SQL database and the scanner should compare it every minute. If it notices price increase, it should alert the user. Example of alert: ... 10 PHP, SQL, Blockchain Feb 20, 2018 Feb 20, 20182天 23时 $1502
Need immediate ICO developer You must show a sample (proof of concept) of ICO with a minimal front end from your dev server strictly otherwise you will not be accepted. I am in need of an ICO developer to launch a ICO campaign on top of Ethereum. Thanks 11 Blockchain, Ethereum, Frontend Development Feb 20, 2018 Feb 20, 20182天 20时 $188
Smart Contract Expert Need a smart contract expert to rewrite a smart contract. I want to implement a lock of tokens in the smart contract. Which means the people who bought tokens will see the tokens in their mew but wont be able to move it till a certain date. This date should be changeable by the owner. Some examples are remme, car vertical. 5 Bitcoin, Blockchain, Ethereum Feb 20, 2018 Feb 20, 20182天 14时 $4412
Looking for an experienced individual to create an ICO website. Must have an relevant experience and show previous work Platform will need to as a minimum: * Create Bitcoin and Ethereum Based Wallets using node method * Stagger ICO Sales * Full Back End Admin Further information will be provided to the right candidate, as for turnaround time its going to be 14 days or less. 19 Bitcoin, Laravel, 设计, Blockchain, Ethereum Feb 19, 2018 Feb 19, 20182天 9时 $6619
Develop a Blockchain Voting Platform Hello, I am looking for someone to develop a blockchain (Ethereum) based project for me. Here are the things I need: - Creation of the smart contract and tokens - There will be a private ICO, so I will need a way to collect funds, The rest will be airdropped and distributed as a bounty. - The Website Itself. The idea is very simple. It is a voting platform where users can vote for their... 38 PHP, 软件构架, Blockchain, Ethereum Feb 19, 2018 Feb 19, 20182天 8时 $51578
Showing 1 to 50 of 758 entries
« 1 2 3 4 5 »