Blockchain Munkák és versenyek

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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Projekt/Verseny Leírás Árajánlat/Pályamű Készségek Kezdete Vége Ára (EUR)
Ethereum smart contract development Looking for experienced ethereum smart contract and crypto developers 5 Szoftverarchitektúra, Blockchain, Ethereum, Web Development May 20, 2018 Ma6n 23ó €44
IM LOOKING FOR BLOCKCHAIN DEVELOPER IM LOOKING FOR BLOCKCHAIN DEVELOPER FOR APPS AN WEB 1 Szabadúszó, Blockchain May 20, 2018 Ma6n 23ó €131
Write me a smart contract I need a smart contract that governs a rental agreement. Basically, if the buyer sends the agreed upon amount of tokens, the seller provides a digital key (instead of a physical key) on an agreed upon date. 4 Kódolás, Programozás, Blockchain, Ethereum May 20, 2018 Ma6n 22ó €82
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! 3 Bitcoin, Blockchain May 20, 2018 Ma6n 21ó €958
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... 8 PHP, C programozás, Blockchain May 20, 2018 Ma6n 18ó €128
Database performance I need write an artical that describe to tune the performance of some area in database 11 Adatbázis-fejlesztés, Kódolás, Blockchain, Tudományos írás May 20, 2018 Ma6n 14ó €136
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. 9 Blockchain, Ethereum May 19, 2018 Ma6n 12ó €445
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 27 Javascript, C++ Programozás, node.js, Blockchain May 19, 2018 Ma6n 6ó €4326
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... 19 Javascript, C# programozás, Szoftverarchitektúra, Blockchain, Ethereum May 19, 2018 Ma6n 6ó €8464
BLOCK CHAIN TECHNOLOGY FOR ACCOUNTING BUILDING SOFTWARE FOR ACCOUNTING USING BLOCK CHAIN TECHNOLOGY 8 Blockchain May 19, 2018 Ma6n €42225
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 15 Java, C++ Programozás, Blockchain, Ethereum May 19, 2018 May 19, 20185n 23ó €33401
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... 25 PHP, C programozás, Kriptográfia, C++ Programozás, Blockchain May 19, 2018 May 19, 20185n 21ó €2240
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... 16 PHP, Bitcoin, Blockchain, Ethereum May 18, 2018 May 18, 20185n 13ó €432
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 14 C programozás, Linux, Bitcoin, Git, Blockchain May 18, 2018 May 18, 20185n 4ó €551
Create BTC Wallet Project for Bing - add BTC to wallet 15 PHP, Bitcoin, Laravel, Blockchain, Ethereum May 18, 2018 May 18, 20185n 3ó €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 13 Blockchain, Ethereum May 18, 2018 May 18, 20184n 21ó €16
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 Videó szolgáltatások, Animáció, Üzleti elemzés, Blockchain May 18, 2018 May 18, 20184n 20ó €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, 20184n 19ó €522
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 21 C programozás, Javascript, C# programozás, Angular.js, Blockchain May 18, 2018 May 18, 20184n 17ó €3099
Install Draglet Exchange Software into an AWS CentOS Instance We need some one to install and configure the Draglet criptocurreny exchange software into an AWS CentOS Instance and create a mini Howto, such a way we can reproduce the instalation proccess into another instance. The instalation manual can be found here: [login to view URL]:Installation_manual The files to download and docs here (4.0.3): [login to view URL] 14 Rendszergazda, Linux, Amazon Web Services, Bitcoin, Blockchain May 18, 2018 May 18, 20184n 17ó €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 21 Blockchain, Ethereum May 17, 2018 May 17, 20184n 13ó €20
Masternode Coin needed Looking for a blockchain developer with experience in masternode development. portfolio viewing requested 14 Szoftverarchitektúra, Blockchain May 17, 2018 May 17, 20184n 9ó €1842
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 18 Blockchain, Ethereum May 17, 2018 May 17, 20184n 5ó €497
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, 20184n 3ó €3948
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 $100 in Ethereum or Ethereum Classic after you finish the job. 12 Szövegírás, Article Writing, Blockchain May 17, 2018 May 17, 20184n 3ó €131
Crypto exchange platform 1.0 Function: Registration – People can register and verify phone, email, DI / passport with KYC. After register system should generate a BTC wallet, a ETH wallet, and a Money wallet for each user. Deposit – User can deposit BTC / ETH from his private wallet to system wallet using our system. For money wallet deposit, we will handle it manually, user bank transfer money to us and we ma... 27 PHP, Szoftverarchitektúra, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20184n 3ó €1906
Crypto exchange platform Function: Registration – People can register and verify phone, email, DI / passport with KYC. After register system should generate a BTC wallet, a ETH wallet, and a Money wallet for each user. Deposit – User can deposit BTC / ETH from his private wallet to system wallet using our system. For money wallet deposit, we will handle it manually, user bank transfer money to us and we ma... 20 PHP, C programozás, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20184n 3ó €1658
Looking for a freelance writer knowledgeable about Cryptocurrencies and Blockchain. This project will require text between 350-1,000 words to be written on occasion. Text can range from short copywritten articles (350-1,000). Or Cryptocurrency related descriptions (200-300 words). The shorter the text - the quicker the turnaround. Reward: 1.60$ per 100 words as a start. Please include the word POP in your bid. -No agencies. 19 Szövegírás, Article Writing, Cikk újraírás, Blockchain May 17, 2018 May 17, 20184n €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. 14 C++ Programozás, Blockchain, Ethereum May 17, 2018 May 17, 20183n 23ó €697
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. 15 Article Writing, Tartalomírás, Blockchain, Twitter Marketing May 17, 2018 May 17, 20183n 23ó €18
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) 35 Szoftver fejlesztés, Kódolás, Programozás, Blockchain, Ethereum May 17, 2018 May 17, 20183n 22ó €2387
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... 41 Műszaki írás, eCommerce, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20183n 22ó €456
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 11 Linux, C++ Programozás, Blockchain May 17, 2018 May 17, 20183n 16ó €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. 20 PHP, Bitcoin, Blockchain, Ethereum May 17, 2018 May 17, 20183n 16ó €322
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 Fordítás, YouTube, Angol (US), Blockchain May 16, 2018 May 16, 20183n 13ó €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, Szoftverarchitektúra, MySQL, Blockchain, Ethereum May 16, 2018 May 16, 20183n 13ó €2221
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. 5 PHP, Szoftverarchitektúra, MySQL, Blockchain, Ethereum May 16, 2018 May 16, 20183n 12ó €28408
Adult Webcam Template and Features Added (Blockchain Developers) I’m using [login to view URL] xCams script and need some modifications done on the site. I have a max amount that I can pay to get these features added and site re-designed. Features: Tokens: These are given to Members to tip models and even go into a private show with the models. Non-Members will receive tokens as well. - Member will receive tokens to their accounts for every min... 12 PHP, Javascript, Webdesign, HTML, Blockchain May 16, 2018 May 16, 20183n 11ó €379
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. 2 Blockchain, Ethereum May 16, 2018 May 16, 20183n 5ó €341
watch-only addresses on cryptocurrency Looking for an blockchain/cryptocurrency developer to implement watch-only addresses for our coin. Also know as 'importonly' addresses, these allows a wallet to watch the coins at an address, but not spend them. You will interface with other members of our experienced development team, Must be great with c/c++ programming, the Linux OS and blockchain cryptocurrencies(like Bitcoin) [... 7 C programozás, Python, Szoftverarchitektúra, C++ Programozás, Blockchain May 16, 2018 May 16, 20183n 5ó €150
Add support for watch-only addresses on cryptocurrency Looking for an blockchain/cryptocurrency developer to implement watch-only addresses for our coin. Also know as 'importonly' addresses, these allows a wallet to watch the coins at an address, but not spend them. You will interface with other members of our experienced development team, Must be great with c/c++ programming, the Linux OS and blockchain cryptocurrencies(like Bitcoin) [... 4 C programozás, Python, Szoftverarchitektúra, C++ Programozás, Blockchain May 16, 2018 May 16, 20183n 3ó €134
Add one 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). Only expe... 2 C programozás, Szoftverarchitektúra, C++ Programozás, Bitcoin, Blockchain May 16, 2018 May 16, 20183n 3ó €60
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. 24 node.js, Alkalmazásfejlesztő, Blockchain, Ethereum, Web Development May 16, 2018 May 16, 20183n 3ó €494
We need our own blockchain We are looking our own blockchain website developer, please bid only if you have experience in blockchain development 17 PHP, Javascript, HTML, Bitcoin, Blockchain May 16, 2018 May 16, 20183n 3ó €3530
CRYPTO/BITCOIN/BLOCKCHAIN Research Writers Required. I am looking for THREE very experienced ACADEMIC and ARTICLE research writers. You MUST have experience in being able to RESEARCH and Write very technically strong Articles and Academic Papers on topics relating to Cryptocurrencies, Bitcoin, the Blockchain and all related areas including the criminal aspect which is linked to the industry. Article length is expected to be approximately 1000 ... 22 Tudományos írás, Bitcoin, Blockchain, Ethereum, Tudományos írás May 16, 2018 May 16, 20183n 1ó €20
I need Bitshares Expert I need bitshares expert to integrate CVCoin trading. If you are bts expert, please bid. Regards 3 PHP, Bitcoin, Blockchain May 16, 2018 May 16, 20183n 1ó €233
Building an X11 Blockchain (Dash fork) 2.0 This is the specification for the blockchain: Algorithm: X11 Dash Clone Symbol: Q Starting Transaction Letter: QT Total Supply: 21 Billion Pre-mined coin: 2.1 Billion TIme frame: 120sec Block Rewards: 100 Blocks Block Size: 2 MB Halving: 100 Million I see the project like this: Fork Dash and modify the specifications in the source code (total supply, pre-mined coin, block size, halv... 17 PHP, C programozás, Python, Blockchain May 16, 2018 May 16, 20182n 20ó €1156
Build an X11 Blockchain (Dash fork) This is the specification for the blockchain: Algorithm: X11 Dash Clone Symbol: Q Starting Transaction Letter: QT Total Supply: 21 Billion Pre-mined coin: 2.1 Billion TIme frame: 120sec Block Rewards: 100 Blocks Block Size: 2 MB Halving: 100 Million We see the project like this: Fork Dash and modify the specifications in the source code (total supply, pre-mined coin, block size, hal... 3 Blockchain May 16, 2018 May 16, 20182n 20ó €659
e-wallet api service with payment gateway integration Looking to build an e-wallet api service with payment gateway integration. Individual should have minimum 5 years of experience with payment gateway integration experience. You will get an opportunity to interact with NPCI development team for this development. You will also work along side 3 experienced developers along with one solution architect. 18 Javascript, MySQL, Angular.js, Blockchain, Web Development May 16, 2018 May 16, 20182n 19ó €35
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. 5 Blockchain, Ethereum May 16, 2018 May 16, 20182n 18ó €256
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