Ethereum 工作与竞赛

Ethereum is a decentralized platform that runs smart contracts- applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third party interference.
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项目/竞赛 描述 竞标数/参赛作品数 技能 已开始 结束 价格(HKD)
ecrecover solidity function return publicKey I need ecrecover solidity function with return the publicKey Resources: [login to view URL] Javascript: /** * ECDSA public key recovery from signature * @param {Buffer} msgHash * @param {Number} v * @param {Buffer} r * @param {Buffer} s * @return {Buffer} publicKey */ [login to view URL] = function (msgHash, v, r, s) { const signature = [login to view URL]([[login to view URL](r, 32),... 1 密码学, Bitcoin, Blockchain, Ethereum May 22, 2018 今天6天 22时 $2308
Base58Check solidity function I need Base58Check solidity function Resources: [login to view URL] [login to view URL] [login to view URL] 2 密码学, Bitcoin, Blockchain, Ethereum May 22, 2018 今天6天 22时 $3713
Testers needed with metamask account Also prefer if you already have Rinkeby test Ether. We will be testing a new cutting edge Ethereum dapp. Only apply if you have metamask. I am putting together a paid testing team. 1 测试/质量管理, 软件测试, 网站测试, 可用性测试, Ethereum May 22, 2018 今天6天 22时 $39
Project for Cryptocurrency We need to build our own digital currency. 6 Blockchain, Ethereum May 22, 2018 今天6天 15时 $33644
PrivateKey Database - 10/05/2018 18:00 EDT Hello there. Im Need a Developer who can make me a Similar Site than Ethersecret(dot)com oder ethdir(dot)io. The Skills for this Project are experience with the etherscan api and WebSecurity. On your opinion of the implementation, I am particularly interested. (they can you send me in a PM) I hope i can find an Coder who can make this Project and Fix a lot of Problems. The project wi... 12 PHP, Javascript, HTML, Blockchain, Ethereum May 22, 2018 今天6天 12时 $4247
Smart contract auditing Looking for someone to audit my smart contract. Erc20 token Must have experince auditing smart contract before 16 Blockchain, Ethereum May 21, 2018 今天6天 10时 $8650
Block-chain Programmer Looking for a Programmer for an indie Block-chain Venture. Prior experience is preferred in e-commerce along with crypto-currency programming . 37 PHP, 电子商务, Bitcoin, Blockchain, Ethereum May 21, 2018 今天6天 $14239
github service about ico I need service in github about my ICO 5 Blockchain, Ethereum May 21, 2018 May 21, 20185天 21时 $1209
design website from a- z i want design website like [login to view URL] intergration bitgo...usd 200. or negoticiateble price. 40 WordPress, MySQL, Bitcoin, Blockchain, Ethereum May 21, 2018 May 21, 20185天 12时 $3368
Launch an ico - Educational video platform Live and offline courses by experienced tutors 7 Bitcoin, Blockchain, Ethereum May 20, 2018 May 20, 20185天 10时 $12567
Blockchain Application We are working on Blockchain technology and want to add a highly motivated Engineer to our team in Kuala Lumpur, Bangkok and Singapore office. Work on emerging technologies, building POC’s leveraging internal infrastructure and data, partnering with Product on implementation strategy. Work with technology teams to understand the business demand and ensure design and build of solutions create... 27 C++编程, 编程, 编程, Blockchain, Ethereum May 20, 2018 May 20, 20185天 10时 $143
whitepaper ico/token crowdsale I need someone to write whitepaper for my already created token. Whitepaper need to have 10-20 pages with graphs and text etc. Need finish in 1-2 days full. 3 Blockchain, Ethereum May 20, 2018 May 20, 20185天 3时 $3525
blockchain for fishing business complete development of fishing business to blockchain and getting the product to ICO stage , Existing model with source code of an finance project is there which need to be customised and get working for fishing business client at asia . All the datas and the flow would be shared by business analyst , implementation of existing finance model source code to fishing business for customised flow . 14 Blockchain, Ethereum May 20, 2018 May 20, 20184天 23时 $50602
Write a smart contract A tenant wants to rent an apartment from a landlord. To maximize efficiency, I want to use a smart contract for this. The tenant would transfer the deposit to a third address (escrow account), and the landlord transfers a non-fungible token to this address. Then, on an agreed upon date, the token is transferred to the tenant and the deposit to the landlord. This token would act as a key, used to... 6 Blockchain, Ethereum May 20, 2018 May 20, 20184天 22时 $8867
ERC20 Smart Contract Develop an ERC20 token on Ethereum Create a wallet and test on ETH testnet This is new for me and I will need some guidance on best practices, so good communication skills are important. 23 Blockchain, Ethereum May 19, 2018 May 19, 20184天 10时 $4090
Looking freelancer or team can create new crypto coin. we want talented blockchain developer able to create on javascript based coins, or c/c++ coins XVG, ARK, LISK,ETH. who have done project like this before. need new own coin with web, create decentralized exchange wallet hosting desktop exchange and trading app for our coin. We finding team or freelancer not in company to join our time as a head developer. Who able to work in a partnership mode pl... 33 Javascript, C# 编程, 软件构架, Blockchain, Ethereum May 19, 2018 May 19, 20184天 4时 $80240
create a new crypto token Im creating a platform and erc token on ethereum or EOS which can do basic GPS location and update an evolving virtual decentralized marketplace. I would like to speak to you on the phone and ask you questions about your understanding of the Ethereum ecosystem. [Removed by Freelancer.com Admin] -Stephen 24 Java, C++编程, Blockchain, Ethereum May 19, 2018 May 19, 20183天 21时 $295691
Decentralized ehtereum token exchange I require a decentralized ethereum erc20 token exchange site. It will be simple similar functions to: [login to view URL] I need to easily add tokens and remove tokens if needed. header banner ad required. mobile friendly import private key and address to fund account with tokens and ether site to look similar style as: [login to view URL] site will be on /trade/ folder as i will create a landing... 20 PHP, Bitcoin, Blockchain, Ethereum May 18, 2018 May 18, 20183天 11时 $3844
Create BTC Wallet Project for Bing - add BTC to wallet 15 PHP, Bitcoin, Laravel, Blockchain, Ethereum May 18, 2018 May 18, 20183天 1时 $3674
Blockchain Developer for ICO start-up project We are preparing a new ICO project for [login to view URL] based blockchain. Therefore we are searching for new team members, that have the following experiences: - EOS (and general) blockchain understanding - ICO whitepaper experience and understanding - dAPPS experiences 14 Blockchain, Ethereum May 18, 2018 May 18, 20182天 19时 $141
Blockchain ICO start-up project We are preparing a new ICO project for [login to view URL] based blockchain. Therefore we are searching for new team members, that have the following experiences: - EOS (and general) blockchain understanding - ICO whitepaper experience and understanding - dAPPS experiences 20 Blockchain, Ethereum May 17, 2018 May 17, 20182天 11时 $181
Development and Deployment of a ERC20 Smart Contract we are looking for a real Expert for the development and deployment of a ERC20 Smart Contract on the Ethereum network. Details 1) ICO Generation with the registered wallet 2) Publishing the smart contract on the ETH Test chain and validating it 3) Publishing the smart contract on the ETH Main chain and validating it 23 Blockchain, Ethereum May 17, 2018 May 17, 20182天 3时 $4569
Crypto exchange platform 1.0 Function: Registration – People can register and verify phone, email, DI / passport with KYC. After register system should generate a BTC wallet, a ETH wallet, and a Money wallet for each user. Deposit – User can deposit BTC / ETH from his private wallet to system wallet using our system. For money wallet deposit, we will handle it manually, user bank transfer money to us and we ma... 30 PHP, 软件构架, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20182天 1时 $16689
Crypto exchange platform Function: Registration – People can register and verify phone, email, DI / passport with KYC. After register system should generate a BTC wallet, a ETH wallet, and a Money wallet for each user. Deposit – User can deposit BTC / ETH from his private wallet to system wallet using our system. For money wallet deposit, we will handle it manually, user bank transfer money to us and we ma... 22 PHP, C 编程, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20182天 1时 $14750
Create an advanced token For our client we need an advanced Ethereum token. Solidity code to be implemented must be upgradeable with ERC777 standards. We reply only to those already have experience in this and made other tokens before. 17 C++编程, Blockchain, Ethereum May 17, 2018 May 17, 20181天 21时 $6076
Smart contract on erc 20 token i need a smast contract that: - montly make a snapshot of a specific contract token on ethereum blockchain - find address where this token are stored - select if in each address there are more or less than 2500 token - divide (proportionally to quantity of token holded,) eth that there is in a specific addres to all token holder (but only who old more than 2500 token) 37 软件开发, 编程, 编程, Blockchain, Ethereum May 17, 2018 May 17, 20181天 20时 $21805
whitepaper for Cryptocurrency ICO project My name is Omar Saeed. I am Senior Financial Consultant of an online B2B ecommerce platform). Our Company is in the process of Initial Coin Offering (ICO) and in that context has created the following documents: • Business & Expansion Plan • Tokenomics paper Both these together form the White-Paper for ICO Token Offerings. We need a price quote from you regarding the belo... 43 技术写作, 电子商务, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20181天 19时 $4168
Crypto project assistance Generate erc20 supported wallets for users which are able to be used to send and receive transactions and connects to the blockchain. 22 PHP, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20181天 14时 $2856
URGENT -- Decentralised Exchange for ERC20 Tokens I want to build a decentralized exchange for ERC20 Tokens. Same as a http://idex.market. An easy way to do that I'll give you IDEX smart Contract so you need to modify and deploy on my own network. for the design - I already have designed so you need to add little bit modification. Please bid. 16 PHP, 软件构架, MySQL, Blockchain, Ethereum May 16, 2018 May 16, 20181天 11时 $21453
URGENT - Decentralised Exchange for ERC20 Tokens I want to build a decentralized exchange for ERC20 Tokens. Same as a http://idex.market. An easy way to do that I'll give you IDEX smart Contract so you need to modify and deploy on my own network. for the design - I already have designed so you need to add little bit modification. Please bid. 8 PHP, 软件构架, MySQL, Blockchain, Ethereum May 16, 2018 May 16, 20181天 10时 $171454
Exchange Function Modify I need someone who can modify smart contract function and make an exchange like [login to view URL] I'll provide you smart contrast you need to deploy as my own. I'll provide you sample HTML, CSS and you need to convert into angular and connect smart contract to exchange. 17 PHP, Javascript, node.js, Angular.js, Ethereum May 16, 2018 May 16, 20181天 9时 $1193
ethereum auditor (reviewing contract) Hello I am looking for a professional to check my contracts and provide me feedback. I am looking to go into ICO. Please show a sample of your work. 3 Blockchain, Ethereum May 16, 2018 May 16, 20181天 3时 $2708
A real Expert on ERC20 token, wallet and system with Ethereum We are looking for a developer experienced in ERC20 tokens to develop a token and special wallet with KYC process. We need someone experienced with Quorum as our ICO involves collecting our token holders details. 28 node.js, 应用程序开发, Blockchain, Ethereum, Web Development May 16, 2018 May 16, 20181天 1时 $4796
Edit smart contract on site for decentralized ethereum exchange I have a decentralized ethereum exchnage site based on the ether delta script on github. I need the smart contract replicated and incorporated in site after editing to make sure that the fees are eliminated. I want to set gas price to a certain rate and just have gas fees so no commission is taken by the site. 6 Blockchain, Ethereum May 16, 2018 May 16, 201816时 24分 $2128
Need Assistance installing and configuring Gunbot Autoconfig for Crypto Trading Need Assistance installing and configuring Gunbot Autoconfig for Crypto Trading. I have a windows virtual and I'm running Gunbot XT and need assistance installing and configuring the auto config utility to allow dynamic changes to the config file based on data from Tradingview. You must have experience with Gunbot and Gunbot Autoconfig to be considered for this project. 2 Bitcoin, Blockchain, Ethereum May 15, 2018 May 15, 20189时 55分 $997
Blockchain developer Blockchain developer for a Pre-ICO smart contract 20 PHP, 密码学, Bitcoin, Blockchain, Ethereum May 15, 2018 May 15, 20185时 8分 $2771
ICO Bounty Program - Creation and Management Looking for an experienced bounty manager to create and manage our bounty campaign for an ICO. 1. ICO ANNOUCEMENT 2. BOUNTY CAMPAIGN ANNOUNCEMENT 3. MANAGE THE BOUNTY CAMPAIGN ITSELF We are an upcoming ICO Project and need a bounty manager for an ICO camapign. Your tasks include community management for our different Bounty Campaigns and Airdrops for an upcoming ICO for our exchange... 8 项目管理, 市场, 广告, Bitcoin, Ethereum May 15, 2018 May 15, 20183时 46分 $4797
ERC20 Token integration to private Exchange Hi, I need ERC20 Token expert to integrate my private exchange. If you have done similar job first then please contact. 28 PHP, C++编程, Blockchain, Ethereum May 15, 2018 May 15, 2018已经结束 $7206
I Need Cryptocurrency Writing Expert I need some expert writer who has great knowledge on Cryptocurrency/Blockchain and can write content about them. Also who can write whitepaper please bid in this job! 26 Article Writing, Research Writing, Bitcoin, 内容写作, Ethereum May 14, 2018 May 14, 2018已经结束 $1115
Need Commmunity Manager Looking for community manager Must have ICO experience specially in bitcoin, token sales, blockchain platform. Must have community management experience Must have sales experience We are launching token Someone interested working on profit or revenue or commission basis 9 市场, Bitcoin, Blockchain, Ethereum, Social Media Management May 14, 2018 May 14, 2018已经结束 $3156
create erc20 token crowdsale w/ whitelist & an airdrop smart contract I need an ERC20 token smart contract created with the following abilities -freeze/unfreeze tokens -create set amount of tokens for specific addresses -burn tokens -set bonus amount -start/stop crowdsale Then, i need a simple airdrop smart contract. 14 Blockchain, Ethereum May 14, 2018 May 14, 2018已经结束 $110
Translate website content En to Thai, cryptocurrencies related Hi, we have a project, dealing with cryptocurrencies investments. Need to have the content translated into the Thai language. For now it's 2080 words, may slightly increase after we finish all the areas. At the moment it has a couple of words about us (pretty basic), main features, how to use instruction and FAQs. We are interested in native speakers, preferably the ones familiar with the ... 15 翻译, 泰语, 英语(美国), Ethereum May 14, 2018 May 14, 2018已经结束 $392
Ethereum Contract that Sends Token to 50k+ Users Hello, We need a developer that will help us build an ethereum smart contract that will have the option to send our token to 50.000+ users. We are looking for people that have proven experience in this area. Thanks! 20 Javascript, node.js, Ethereum May 14, 2018 May 14, 2018已经结束 $2925
decentralized exchange decentralized cryptocurrency trading exchange. 34 Bitcoin, Blockchain, Ethereum May 14, 2018 May 14, 2018已经结束 $50207
Crypto Exchange Website Good day, We want a cryptocurrency exchange platform to start with. We want to offer a Buy/sell system P2P same as etherdelta. - Wallet System, Deposit System, Wallet Transactions, Withdrawal system and so on... The design is also ready, you need to develop a smart contract and need to connect with design. Please apply only if you have done such kind of work before and have a strong... 34 PHP, CMS, 密码学, MySQL, Ethereum May 14, 2018 May 14, 2018已经结束 $5496
Need help installing pyethereum on my computer I have been trying to install pyethereum on unbutu OS running on a virtual box, but I have errors such permission denied and operation denied. 7 Linux, Ubuntu, Blockchain, Ethereum, Virtual Machines May 13, 2018 May 13, 2018已经结束 $213
Long Term Technical Partner for Healthcare Tech Start-Up We are an exciting, disruptive healthcare technology SaaS start up providing blockchain and other data storage and machine learning to improve operations for medical providers and healthcare for patients. Our system has been mostly developed and need someone to be our ‘jack of all trades.’ Ideal partner has experience in healthcare tech, bioninformatics, computer operations, system... 24 Javascript, Python, 机器学习, Ethereum, Docker May 13, 2018 May 13, 2018已经结束 $18415
Write a ethereum smart contract I need you to develop some software for me. I would like this software to be developed . i am looking for a blockchain developer with sound knowledge on ethereum blockchain for an erc721 token and crowsale smartcontract development. 10 Blockchain, Ethereum May 13, 2018 May 13, 2018已经结束 $20285
Need landing page for ICO on the websit I am looking for someone to help create the landing page for an ICO project. Please submit examples of your work. Looking to get started ASAP. **Please reply with the word "landing page" in your response in the or I might skip over you** 29 软件测试, 登陆页面, Blockchain, Ethereum, Web Development May 13, 2018 May 13, 2018已经结束 $8650
Need Urgent bitcointalk and reddit ICO MARKETING MANAGER We have upcoming coin offering, in couple of month, and looking for marketing expert to strategize to help us. Key Tasks 1 . Announcing our coin on forums like bitcointalk and reddit 2. Running the airdrop 3. Bounty Rewards and execution 2 市场, 密码学, Bitcoin, Blockchain, Ethereum May 13, 2018 May 13, 2018已经结束 $290
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