Blockchain İşler ve Yarışmalar

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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Freelancer'da İşlere Göz Atın

Proje/Yarışma Tanım Tekilfler/Girdiler Beceriler Başlangıç Bitiş Fiyat (EUR)
Create a brand new AltCoin (NO ICO) with its of ecosystem independent from any currency Purpose: The purpose of Goldrium is to introduce a fastest PCI compliant coin which incorporates Ripple and Etherum main functionalities. Process payments, settle bank transaction, and people can create ICO on your platform. The coin should be self-reliant with its own algorithm and ecosystem. These are initial features but we will be constantly adding new features to compete with all coins includ... 7 PHP, Algoritma, Kriptografi, C++ Programlama, Blockchain May 21, 2018 Bugün6g 23s €2070
Add feature for bitcoin fork (Altcoin) PLEASE READ BEFORE BIDDING (NO ETHEREUM BASED BLOCKCHAIN) I wait from a blockchain developer to integrate this feature to the bitcoin fork: - Set sending limit (Anyone can set a send limit for a specific address using the private key, for example i set to my address to be able to send only 0.3 BTC under 24 hours, i can remove this condition with my private key, or modify it) - More information... 1 C Programlama, Yazılım Mimarisi, C++ Programlama, Bitcoin, Blockchain May 21, 2018 Bugün6g 23s €131
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 . 26 PHP, e-Ticaret, Bitcoin, Blockchain, Ethereum May 21, 2018 Bugün6g 17s €1490
We need to add new feature for bitcoin fork (altcoin) PLEASE READ BEFORE BIDDING (NO ETHEREUM BASED BLOCKCHAIN) I wait from a blockchain developer to integrate this feature to the bitcoin fork: - Set sending limit (Anyone can set a send limit for a specific address using the private key, for example i set to my address to be able to send only 0.3 BTC under 24 hours, i can remove this condition with my private key, or modify it) - More information... 2 C Programlama, Yazılım Mimarisi, C++ Programlama, Bitcoin, Blockchain May 21, 2018 Bugün6g 14s €80
github service about ico I need service in github about my ICO 5 Blockchain, Ethereum May 21, 2018 Bugün6g 13s €131
Write a proposal/report on improving supply chain with Blockchain (with diagrams) You will need to write a short report/proposal on improving the traditional supply chain with Blockchain technology. For example any ONE of these: 1. Blockchain in Pharmaceutical supply chain to prevent counterfeit drugs supply. 2. Blockchain based Port logistics 3. Food safety and traceability using Blockchain: Meat traceability, Sea food traceability etc. 4. Blockchain based garment products ... 5 Blockchain May 21, 2018 Bugün6g 10s €59
Develop a simple API for block explorer I have developed a CryptoNote base coin and want to make a block explorer for that. You can use any template but it should be connected to CryptoNote coins I want to hire a experienced developer who knows well about json rpc 28 PHP, Javascript, Yazılım Mimarisi, MySQL, Blockchain May 21, 2018 Bugün6g 9s €16
Cryptocurrency Exchange Looking for someone to develop an simple cryptocurrency exchange script. Something like (References): [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] Either you develop an new exchange from scratch, modifying an existing from open source (github) or editing an existing exchange script you already have. I will only have BTC markets (BTX/xxx - T... 41 PHP, Web Sitesi Tasarımı, MySQL, Bitcoin, Blockchain May 21, 2018 Bugün6g 9s €864
List all Blockchain Companies who offers Coins/currency to users for simple services We need a list with blockchain/crupto currency companies, who offers users coins/payments for simple services like, user-tracking, data-storing etc. The list must contain - Company Name - Web Url - Type of service - Coin Type - Company Status (ICO/Active) - Founded Date - Country Origin 8 Blockchain May 21, 2018 Bugün6g 7s €124
design website from a- z i want design website like [login to view URL] intergration bitgo...usd 200. or negoticiateble price. 33 WordPress , MySQL, Bitcoin, Blockchain, Ethereum May 21, 2018 Bugün6g 5s €358
Launch an ico - Educational video platform Live and offline courses by experienced tutors 1 Bitcoin, Blockchain, Ethereum May 20, 2018 Bugün6g 3s €424
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... 21 C++ Programlama, Kod yazma, Programlama, Blockchain, Ethereum May 20, 2018 Bugün6g 3s €16
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, 20185g 20s €381
Adult Webcam Mockup UI READ THE ENTIRE DESCRIPTION! IF YOU SUBMIT RANDOM WORK, YOU WILL BE REPORTED! I need web designed UI of webpage Members Panel, Model Panel and Cam Viewing Page. Members Panel: This is the area for members once they are logged into the site. This page should have tabs to the left side and dashboard in the middle. Stationary Top: Members Name, Token Amount Tabs: Dashboard (Home), Wallet, Fav... 1 Blockchain, Grafik Tasarımı, Kullanıcı Arayüzü / IA, Web Sitesi Tasarımı May 20, 2018 May 20, 20185g 18s €127
Listing Our Coin In Crypto Exchange We want our coins registered in crypto exchange for trade / exchange. Listing in Bittrex/Binance/BitHumb/HitBTC/Luno Only those who have experience in registering cryptocurrency in crypto exchange and received by crypto exchange. We only pay if it works. For more information please contact us! 9 Algoritma, Bitcoin, Blockchain May 20, 2018 May 20, 20185g 18s €269
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 . 12 Blockchain, Ethereum May 20, 2018 May 20, 20185g 16s €5389
Attracting/catching/provoking articles about Miralab.io We are looking for article writers and bloggers to make overviews of our project. Its awesome if you know best IT blogs and column to post it free. You can choose the target audience and style of your articles (geeks/simple users/investors) Our project could be described from different sides (as any ICO project) [login to view URL] "Mira is an easy and convenient way to buy, store and sen... 15 Article Writing, Yorum, İçerik Yazımı, Blockchain, Blog Writing May 20, 2018 May 20, 20185g 15s €20
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... 4 Blockchain, Ethereum May 20, 2018 May 20, 20185g 15s €49
IM LOOKING FOR BLOCKCHAIN DEVELOPER IM LOOKING FOR BLOCKCHAIN DEVELOPER FOR APPS AN WEB 6 Serbest Çalışma, Blockchain May 20, 2018 May 20, 20185g 14s €158
Adding Our Cryptocurrency In Crypto Exchange We want to add our cryptocurrency on crypto exchange. Bittrex/Binance/BitHumb/HitBTC/Luno Only have registered cryptocurrency in crypto exchange and received. We only pay if it works. For more information, please contact us! 10 Bitcoin, Blockchain May 20, 2018 May 20, 20185g 11s €345
Simple Hyperledger Form Creation (Blockchain) I am looking for someone with hyperledger experience. I need to create a blockchain based on hyperledger and I want it to be updated via web form. Web form will be very simple. Just name, age, country and submit button. But it will update the ledger and transactions can be seen from web interface. A blockchain that can be updated and query via web form. So on the website, there will be 1 form to s... 15 PHP, C Programlama, Blockchain May 20, 2018 May 20, 20185g 9s €152
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. 20 Blockchain, Ethereum May 19, 2018 May 19, 20185g 3s €446
create new crypto currency/blockchain Im looking for freelancer can create a new crypto currency with my idea! have anything about new coin and new function, I want to see your proposal before take a chat, please write it and give me your last coin are you created. Thank You 39 Javascript, C++ Programlama, node.js, Blockchain May 19, 2018 May 19, 20184g 21s €3778
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... 29 Javascript, C# Programlama, Yazılım Mimarisi, Blockchain, Ethereum May 19, 2018 May 19, 20184g 21s €8652
BLOCK CHAIN TECHNOLOGY FOR ACCOUNTING BUILDING SOFTWARE FOR ACCOUNTING USING BLOCK CHAIN TECHNOLOGY 10 Blockchain May 19, 2018 May 19, 20184g 15s €40643
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 22 Java, C++ Programlama, Blockchain, Ethereum May 19, 2018 May 19, 20184g 14s €32568
Cryptocurrency I require a cryptocurrency created, based on the latest codebase for Bitcoin. This must be fully tested and working before being released. The blockchain keys are to be handed over to me including the Github account from which it is setup. This is to include; - Fully working Atomic Swap and Lightning Network - Masternodes, PoW and PoS - Block explorer - Zerocoin Protocol - Testnet - Fully worki... 30 PHP, C Programlama, Kriptografi, C++ Programlama, Blockchain May 19, 2018 May 19, 20184g 11s €2278
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... 18 PHP, Bitcoin, Blockchain, Ethereum May 18, 2018 May 18, 20184g 4s €397
Fork a Blockchain like Dash/Pivx We are looking for someone who will be able to teach and fork a Blockchain like Dash. Also we need a Wallet and a Block Explorer The code needs to be pushed on github step by step from the fork (initial commit) and all the modification need to be done after the fork. It can be premine and also we need an automation masternode setup 18 C Programlama, Linux, Bitcoin, Git, Blockchain May 18, 2018 May 18, 20183g 19s €926
Create BTC Wallet Project for Bing - add BTC to wallet 15 PHP, Bitcoin, Laravel, Blockchain, Ethereum May 18, 2018 May 18, 20183g 18s €397
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, 20183g 12s €15
Long-term partner, professional video productor maker We are an payment platform in blockchain industry, I need a video that introduce our cryptocurrencies business like bitcoin, eth, usdt and eos advantage. And how to buy and sell their on our website. I need a pure English voice over. And please show me your previous video about this type. Tell me which one video is more suitable. I prefer this kind of video: [login to view URL] You have to fi... 29 Video Servisleri, Animasyon, İş Analizi, Blockchain May 18, 2018 May 18, 20183g 11s €418
Blockchain Application in Food Supply Chain Create web apps blockchain in supporting Food fraud prevention in Food supply chain. Implement the Poof of work and Smart contract in order to check provenance and traceability of food. 23 Javascript, Python, Bitcoin, Swift, Blockchain May 18, 2018 May 18, 20183g 10s €521
Crypto Currency Arbitrage and Exchange Hi Team I was Looking for the Team who can build the Crypto Currency Exchange and Arbitrage Web based Application for my Company 23 C Programlama, Javascript, C# Programlama, Angular.js, Blockchain May 18, 2018 May 18, 20183g 8s €2982
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 21 Blockchain, Ethereum May 17, 2018 May 17, 20183g 4s €19
Masternode Coin needed Looking for a blockchain developer with experience in masternode development. portfolio viewing requested 16 Yazılım Mimarisi, Blockchain May 17, 2018 May 17, 20183g €1876
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 22 Blockchain, Ethereum May 17, 2018 May 17, 20182g 20s €501
Cryptocurrency Exchange 10 coins Ideally I am looking for solution which is already delivered in production and tested in production Hence with small new changes as per my specs and new UI it can be deployed in production See the specs with more details Do not bid without reading the specs Do not bid lower price that you are not willing to take . 58 PHP, Linux, node.js, Bitcoin, Blockchain May 17, 2018 May 17, 20182g 18s €3946
ICO Token whitepaper I need someone to write whitepaper for my already created token. Whitepaper need to have 10-20 pages with graphs and text etc. I am paying $10 after you show me progress and I will pay $100 in Ethereum or Ethereum Classic after you finish the job. 12 Metin Yazarlığı, Article Writing, Blockchain May 17, 2018 May 17, 20182g 18s €131
Crypto exchange platform 1.0 Function: Registration – People can register and verify phone, email, DI / passport with KYC. After register system should generate a BTC wallet, a ETH wallet, and a Money wallet for each user. Deposit – User can deposit BTC / ETH from his private wallet to system wallet using our system. For money wallet deposit, we will handle it manually, user bank transfer money to us and we ma... 30 PHP, Yazılım Mimarisi, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20182g 17s €1802
Crypto exchange platform Function: Registration – People can register and verify phone, email, DI / passport with KYC. After register system should generate a BTC wallet, a ETH wallet, and a Money wallet for each user. Deposit – User can deposit BTC / ETH from his private wallet to system wallet using our system. For money wallet deposit, we will handle it manually, user bank transfer money to us and we ma... 22 PHP, C Programlama, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20182g 17s €1593
Looking for a freelance writer knowledgeable about Cryptocurrencies and Blockchain. This project will require text between 350-1,000 words to be written on occasion. Text can range from short copywritten articles (350-1,000). Or Cryptocurrency related descriptions (200-300 words). The shorter the text - the quicker the turnaround. Reward: 1.60$ per 100 words as a start. Please include the word POP in your bid. -No agencies. 21 Metin Yazarlığı, Article Writing, Makale Yeniden Yazım, Blockchain May 17, 2018 May 17, 20182g 14s €114
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. 16 C++ Programlama, Blockchain, Ethereum May 17, 2018 May 17, 20182g 14s €638
Medium Account Followers need for my profile. i have one medium account i need followers for my account... more than 500 to 1000 any one can help me. 17 Article Writing, İçerik Yazımı, Blockchain, Twitter Marketing May 17, 2018 May 17, 20182g 13s €19
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) 36 Yazılım Geliştirme, Kod yazma, Programlama, Blockchain, Ethereum May 17, 2018 May 17, 20182g 13s €2351
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... 42 Teknik Yazı, e-Ticaret, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20182g 12s €451
Modify some feature of existing blockchain by team viwer remote I need you to modify existing Deviant coin(DEV) for me. my 90% of dev is ready just change some feature 12 Linux, C++ Programlama, Blockchain May 17, 2018 May 17, 20182g 7s €17
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, 20182g 7s €308
Translator for YouTube channel (Chinese to English) FansTime is a blockchain based business project focusing on Entertainment industry. We are hiring an experienced person to help with our job: - Translate YouTube channel videos here → [login to view URL] - Videos will include promotional ones, live show, animated ones, seminars or speeches. - Helping with other translation tasks. Requirements: - Good translation skills. Worked as t... 28 Çeviri, YouTube, İngilizce (Amerikan), Blockchain May 16, 2018 May 16, 20182g 4s €17
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. 15 PHP, Yazılım Mimarisi, MySQL, Blockchain, Ethereum May 16, 2018 May 16, 20182g 4s €2220
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