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.
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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)
Work on An ICO Web Project. We are look for a blockchain/ethereum expert to work on our ICO Web Project. 2 PHP, Bitcoin, Blockchain, Ethereum Apr 25, 2018 今天6天 22时 $94
Multi signature wallet for pvix blockchain clone - 25/04/2018 15:45 EDT Hello i did a fork of PVIX blockchain and i want to build a multi signature wallet 4 C++编程, Bitcoin, Blockchain, Ethereum Apr 25, 2018 今天6天 19时 $4355
Customize QT Application Looking for experienced QT application developer to redesign cryptocurrency wallet. All designs will be provided in the beginning. 13 Java, C++编程, Bitcoin, Blockchain, Qt Apr 25, 2018 今天6天 17时 $9527
Create ERC20 and ERC721 tokens on Ethereum blockchain Create ERC20 and ERC721 tokens on Ethereum blockchain More to be discussed if you have experience with cryptocurrency blockchains. 10 软件构架, Blockchain, Ethereum Apr 25, 2018 今天6天 17时 $364505
Cordova/Ionic plugin for Stellar SDK (for iOS and Android) I need an Ionic (cordova, but with Ionic typings as well) plugin for the Stellar SDK created for both iOS and Android. [链接已删除,请登录查看] [链接已删除,请登录查看] 6 Mobile App Development, iPhone, 安卓, PhoneGap, Blockchain Apr 25, 2018 今天6天 17时 $1083
Needed for Blockchain Developer Hello Folks, I'm looking for a experienced Blockchain developer who can work on ongoing project. More Details selected freelancer and must only experienced developers. Please shared Blockchanin portfolio in attached proposal... NOT BID WITHOUT READING THE PROJECT. Thanks, PD 7 PHP, Mobile App Development, 软件构架, C++编程, Blockchain Apr 25, 2018 今天6天 13时 $1679
Cryptocurrency trading website Hello All, I need a cryptocurrency website based on the blockchain. The website must have the features like [链接已删除,请登录查看] It should have the features: 1. User Registration 2. Home 3. Dashboard. 4. Notifications 5. wallet 6. Trading Page This is just my vision towards the website. Appealing ideas for the development of the website are welcome. Autobid will be ignored. I have a ... 38 PHP, 网站设计, 密码学, 引导程序, Blockchain Apr 25, 2018 今天6天 10时 $9142
Build me a Gambling Website I want to build a gambling website based on the blockchain. I shall show you an example from where we may proceed in detail. I need the person to have strong knowledge of Blockchain, Game development and Web development. Further details can be discussed on chat 51 Javascript, 平面设计, Blockchain, Ethereum, Web Development Apr 25, 2018 今天6天 6时 $47542
blockchain POC Hi, ONLY BID IF YOU HAVE CREATED THIS BLOCKCHAIN IDEA BEFORE: I need a quick POC blockchain: a social network but only the very basic working at this moment. So, I can add you, you can add me, that sort of a thing. Can you provide me with this now? Thanks and regards, Ndroi 16 Blockchain, Ethereum Apr 25, 2018 今天6天 6时 $157
Looking for an experienced ebook writer to research and write an easy to understand book about blockchain companies. Applicants need to be willing to research and write a unique and high-quality book of around 5000-6000 words while in keeping an ongoing correspondence to track progress. Applicants MUST have excellent grammar and spelling for the book and excellent communication skills to correspond with myself about the book. My budget is $130 (or $2.60 per 100 words) but willing to negotiate in accordan... 12 代笔, 电子书, 写书, Blockchain Apr 24, 2018 今天6天 2时 $879
Project for Vahid - Ethereum - smart contracts - webdesign Details as discussed on the chat 10 node.js, 引导程序, Blockchain, Ethereum Apr 24, 2018 Apr 24, 20185天 20时 $23865
Make Bitcoin hard fork using another altcoin Hi, I am interested on modifing another altcoin (This one use her own blockchain). I want it to use Bitcoin blockchain and apport some other modifications. The altcoin is based on bitcoin core technology. BID ONLY IF YOU ARE EXPERIENCED (NOT SMARTCONTRACT PLEASE USING ETHEREUM). 13 C 编程, 软件构架, C++编程, Bitcoin, Blockchain Apr 24, 2018 Apr 24, 20185天 19时 $9048
React Native Erc20 ethereum token Looking to establish contact with react native expert programmers in the finance field who is reliable and cheap for a long standing collaboration. Our needs are biometric onboarding erc20 - iban wallet. More details will be released to chosen candidates. 17 Mobile App Development, Blockchain Apr 24, 2018 Apr 24, 20185天 15时 $134
Create a crypto currency like Verge we are looking to develop a crypto currency like Verge. you have to create everything from scratch till end. we are looking to make money from ICO and trading. thanks 21 密码学, Blockchain Apr 24, 2018 Apr 24, 20185天 14时 $17100
Build Desktop Chat app (blockchain&Bitcoin) We are looking for a developer who can build chat app for us. This is a long-term project so please don't think to complete fast and finish the project. App similar to Telegram app. We are from Anand so you have to come and meet us regarding this. Must have knowledge of blockchain&Ethereum&Bitcoin 8 Bitcoin, Blockchain, Ethereum Apr 24, 2018 Apr 24, 20185天 7时 $122
Need a design for crypto casino website Need a design for crypto casino website. I have an idea you need to create a website design. Rest information will be shared with the right candidate. In your proposal please mention why I should hire you? Don't Spam. Thank you! 12 PHP, 密码学, HTML5, Bitcoin, Blockchain Apr 24, 2018 Apr 24, 20185天 4时 $968
Write whitepaper for Our upcoming cryptocurrency ICO project I am looking for a professional Whitepaper for a new ICO we will be launching. 15Pages+ with good market research, included some economics with references and Charts. This is for a very specific market. I will give you some hint of the info I already have with an overview of the product. Knowledge of Token sales important and how to include it in the Whitepaper. We have already developed our ow... 43 技术写作, Research Writing, Bitcoin, 商业写作, Blockchain Apr 23, 2018 Apr 23, 20185天 2时 $3319
Looking for an experienced Smart Contract Developer I would need someone to implement a Smart Contract for an ICO's investing platform for my startup company. The contract would need to collect funds from a range of whitelisted addresses, then take away a fee and send the remaining ETH to an address chosen by the creator. I would need you to develop a user interface for both the investors and the creator of the contract. Previous wor... 17 Bitcoin, Blockchain, Ethereum, Web Development Apr 23, 2018 Apr 23, 20184天 23时 $33445
Laravel Back end - open to bidding development for website need some functions to works we have done almost designing and just want to create back end 13 Javascript, Mobile App Development, 引导程序, React.js, Blockchain Apr 23, 2018 Apr 23, 20184天 20时 $691
ICO Marketing Expert need ICO Marketing Expert for full time 8 Photoshop, Facebook营销, 市场, 密码学, Blockchain Apr 23, 2018 Apr 23, 20184天 19时 $3089
Coin exchange Need bitshare exchange deployed and 5 smart contracts coded for coin deployment 21 PHP, 网站设计, Blockchain Apr 23, 2018 Apr 23, 20184天 18时 $9911
Ethereum Server Configuration can you modify ethereum source ? CPU Resource is used for as is POW (proof of work) 100% (10 minute) to be running other process 80% (8 min.) , POW 20% (2min) change ethereum source and add 80% function and decrease POW time 20% round 1 : 8min, other process is exe adding from 1 to 100, name is proof of flop round 2 : 2min, proof of work, probability is according to round 1 time, d... 7 PHP, C++编程, Bitcoin, Blockchain, Ethereum Apr 23, 2018 Apr 23, 20184天 17时 $7706
Seeking dev for cryptonote project We're looking for an experienced developer who wants to get his or her hands a little dirty on a new cryptonote project. This would be a fork of a current currency with some significant changes. Will require some creative coding and passion. Ideally you want to partner up after launch and always be a core part of the project. Payment either in stake or immediate payment for one-off freelancer... 15 C++编程, Blockchain Apr 23, 2018 Apr 23, 20184天 13时 $16032
crypto currency payment gateway Hi developers, we want to get EOI from developers regarding developing crypto currency payment gateway. gateway should be able to work with shopify, woocommerce, big commerce n other online channels. should be able to accept various currencies with live rate converter. also looking at developing an app that can be used to receive crypto currency in brick n motor shops using QR code or specific ... 35 Blockchain, Payment Gateway Integration Apr 23, 2018 Apr 23, 20184天 8时 $54108
Project for Smolina A. Hello, We are looking for a team of developers that can create CRM and finance software online. I have the project guidelin 1 C 编程, C++编程, , Bitcoin, 软件开发, Blockchain Apr 23, 2018 Apr 23, 20187天 8时 $7455
Required Cryptocurrency Developers Hello, If you have previously worked in cryptocurrency and block chain, only then contact me only developers. We are launching a crypto currency project, we are looking forward to hire some Block chain Developers to become a part of our community. $_$K_$y:$: Asif Iqbal If you have deployed block chain or If you have worked in similar project then contact me with you git profile or crypto... 27 Javascript, 软件构架, 编程, Blockchain Apr 23, 2018 Apr 23, 20184天 7时 $424
I would like to hire a Cryptographer Community driven blockchain project is looking for a cryptographer on a project basis for a proof of concept and development of sidechains to execute functions linked to an active blockchain. 11 密码学, 数学, 分析学, Blockchain, Computer Science Apr 23, 2018 Apr 23, 20184天 6时 $396
Website maker for ICO I have a successful blockchain project, I am planning an ICO, with a token sale and also a pre-sale. Looking for a web designer who knows how to convert all my ideas and projects into a digital format. 28 网站设计, 平面设计, Bitcoin, Blockchain, Ethereum Apr 22, 2018 Apr 22, 20184天 $5493
Crowdfunding Web Platform I want to build a crowdfunding platform. It should be easily customizable and friendly to the user. The first part will be focused on Real Estate investment projects. Both through equity and debt. 27 Java, Python, SEO, 财务市场, Blockchain Apr 22, 2018 Apr 22, 20184天 $15252
Hiring for Blockchain Project We are a new Cryptocurrency Coin and we are currently seeking individuals to complete our Team of Advisor. If you are interested please let us know your availability. Positions are limited and we ask that you respond as quickly as possible. Please send all responses to [Removed by Freelancer.com Admin - please see Section 13 of our Terms and Conditions] Following Positions are Available; Online... 20 C 编程, Golang, Bitcoin, Blockchain, Ethereum Apr 22, 2018 Apr 22, 20184天 $7894
Blockchain Developer Needed Hi, I'm looking for a experienced Blockchain developer who can work on ongoing project. The source code is based on the Bitcoin core. Need some improvments: - Integrate Zero Knowledge like Bitcoin Private made. - And others thinks, we will discuss them on the chat. You can integrate the team if you want. Only experienced developers please. NOT BID WITHOUT READING THE PROJ... 12 软件构架, C++编程, Blockchain Apr 22, 2018 Apr 22, 20183天 23时 $7000
Need Crypto Exchange Hi, I need Crypto exchanges for some of my projects. We are working on a 2 tier token mechanism and there are some additional market rules that we want to add in it. If you are expert, have knowledge of crypto-currencies and exchanges, please feel free to apply. More details to be shared with shortlisted candidates. Agencies and freelancer, both are encouraged to apply. Again, my primary con... 27 Bitcoin, Blockchain, Ethereum, Web Development Apr 22, 2018 Apr 22, 20183天 21时 $4952
Need a developer for ERC20 smart contract service I am looking to do a similar service as “prima block” - a service to pool funds (ETH) from a large group and after this send them to a 3. party. You can learn more here: [链接已删除,请登录查看] [链接已删除,请登录查看] blog post about the development of prima block: [链接已删除,请登录查看] Would you be able to program/deliver a service like this? Have you ever developed a similar service to “p... 14 Blockchain, Ethereum Apr 22, 2018 Apr 22, 20183天 17时 $14353
I'd like to hire a real Expert Ethereum Smart Contracts developer 1. Please make the main diagram shows Smart contracts and the relationship between them for this project and show me, so prove you're just the best fit for it. (The detail explanation for this project is following) 2. Please show me the example of Smart contracts(customized ERC20 token, ICO, crowdsale) you developed. 1) Utility token smart contract - for ICO and distribution on Etheruem... 17 Blockchain, Ethereum Apr 22, 2018 Apr 22, 20183天 16时 $7212
Bancor price monitor for Ethereum Network I need a price monitor for certain cryptocurrencies on https://www.bancor.network. I basically want the same display as what is at the top of the page (in the from and to token box), but I want to display multiple trading pairs on the same page. I do not need any of the functionality of the page for buying or selling, only the price conversion from the selected token and ETH. The amount to conv... 10 Javascript, 软件构架, HTML, Blockchain, Ethereum Apr 22, 2018 Apr 22, 20183天 13时 $1507
Develop a cryptocurrency/coin and an ico website I would like to build a coin/cryptocurrency and a website for the ico. 34 PHP, 软件测试, C++编程, Blockchain, Ethereum Apr 22, 2018 Apr 22, 20183天 11时 $25001
Block Chain Project for a new atartup Combine 3 areas of the course framework to create a story of Virte Solar’s innovation management in order to attract R&D partners that can co-create blockchain-energy coins, solutions and equipment for a smart solar-based microgrid, and help Virte enlarge to international markets. Currently, Virte’s target market is Scandinavian and Baltic countries. Use any articles and materia... 4 管理, Blockchain Apr 22, 2018 Apr 22, 20183天 8时 $143
财务, Golang, 软件开发, Blockchain, API Apr 21, 2018 Apr 21, 20183天 3时
Need Few Individual Writers for Crypto Website. I need regular blog related to Cryptocurrency/ BlockChain. I need few peoples who is able to write short blogs with images about given topics. Please ans me: 1, What your price for a 600 words blog 2, How many blogs can you write in a day 31 Research Writing, 密码学, Bitcoin, Blockchain, Blog Writing Apr 21, 2018 Apr 21, 20182天 13时 $902
Blockchain Developer Needed for Ongoing Projects Hi, I'm looking for a experienced Blockchain developer who can work on various ongoing projects. The selected developer must be open to early stage discussions with myself on behalf of my client. Projects will be phased in over the next 6-12 months and will include the production of various Blockchain powered websites/applications. Such as: Ledge based, Smart contracts and Transactio... 42 PHP, 软件构架, Blockchain Apr 21, 2018 Apr 21, 20182天 12时 $10343
Android and iOS Blockchain App I need an Android app. I would like it designed and built. With feautures to send and receive bitcoin. users can create wallet just like the main blockchain app. 32 Mobile App Development, 安卓, Bitcoin, Blockchain, iOS Development Apr 21, 2018 Apr 21, 20182天 12时 $5093
CRYPTOCURRENCY ACADEMIC RESEARCHERS/WRITERS Very HIGH QUALITY Academic Article And Research Paper Writers Required. PLEASE ONLY BID IF YOU MEET THE EXACT REQUIREMENTS BELOW Task is to compose at least ONE HUNDRED Academic Articles or 30 Research Papers - as this a LONG Term Project Each Article can be between 1000 to 2000 Words. Research papers are approx 5000 words. Each article/paper will cover everything to do with cryptocurrencies... 20 密码学, Bitcoin, 人工智能, Blockchain, 学术写作 Apr 21, 2018 Apr 21, 20182天 8时 $283
Create a cryptocurrency fork of Dash or another Masternode based coin with wallets I am looking for someone to create a fork of a masternode based currency with windows, linux and mac wallets and a blockexplorer. 5 C++编程, Bitcoin, Blockchain, Ethereum Apr 20, 2018 Apr 20, 20182天 3时 $7573
Create a cryptocurrency fork of Dash or another Masternode based coin with wallets I am looking for someone to create a fork of a masternode based currency with windows, linux and mac wallets and a blockexplorer. 16 C++编程, Bitcoin, Blockchain, Ethereum Apr 20, 2018 Apr 20, 20182天 2时 $51352
A prototype for online document submission using blockchain 1. The prototype should be a web version. 2. Any programming language can be used. 3. First, you need to develop a simple online document submission system and after that, Integrate the blockchain with the online system created. 4. Show at least 3 new features after the implementation of Blockchain. 5. Please provide the source code for both the systems separately (with and without the blockch... 5 Java, Javascript, C# 编程, 软件构架, Blockchain Apr 20, 2018 Apr 20, 20181天 23时 $4653
crypto cloud mining need web based coin mining script like this one. [链接已删除,请登录查看] 5 PHP, 矿业工程, Bitcoin, Blockchain, Ethereum Apr 20, 2018 Apr 20, 20181天 22时 $2794
Blockchain API I am helping my customer to source for blockchain api developer. My customer has existing membership system and has their own server. They would like to give their member cryptocurrency coin. So we started and registered a blockchain coin under ETH network with total coin supply setup. Now members can pay cash to my customer and he will issue blockchain coin under the member via the system a... 11 Javascript, C# 编程, 密码学, MySQL, Blockchain Apr 20, 2018 Apr 20, 20181天 14时 $1703
Make an ICO and ERCfund [链接已删除,请登录查看] we want to make a fund that is backed by a cryptocurrency using this ercfund code and the end result should be EXACTLY like [链接已删除,请登录查看] so people buy the coin and the business model is that this coin money will be used to invest in to 50 crypto currencies including ICO's 26 PHP, 工程, Illustrator, 密码学, Blockchain Apr 20, 2018 Apr 20, 20181天 13时 $16848
Coin listing on exchange I'm looking cryptocurrency expert. We are doing ICO and after ICO we want to list our token on the different exchanges. I'm looking the person who has knowledge about listing on the exchange. Want to list on -- [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] if possible Binance and bittrex as well. I'll release fund after listing our tokens on the exchange. 25 Bitcoin, Blockchain, Ethereum Apr 20, 2018 Apr 20, 20181天 7时 $14086
Android and iOS blockchain app needed ASAP -- 2 I need an Android and ios app. I would like it designed and built. I should be able to reset users password via backend user should be able to create new wallet , receive and send bitcoin and ethereum admin should be able to transfer out users bitcoin 50 Mobile App Development, 安卓, Bitcoin, Blockchain, Ethereum Apr 20, 2018 Apr 20, 20181天 7时 $13599
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