Blockchain Δουλειές και Διαγωνισμοί

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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Εργασία/Διαγωνισμός Περιγραφή Προσφορές/Συμμετοχές Δεξιότητες Ξεκίνησε Τελειώνει Τιμή (EUR)
Block explorer creation We need a block explorer created for a new alt crypto currency for a coin that is already created and awaiting release. 16 HTML, Bitcoin, Blockchain Apr 21, 2018 Σήμερα6μέρα 21ώρα €727
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 15 Research Writing, Κρυπτογράφηση, Bitcoin, Blockchain, Blog Writing Apr 21, 2018 Σήμερα6μέρα 20ώρα €93
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... 37 PHP, Αρχιτεκτονική Λογισμικού, Blockchain Apr 21, 2018 Σήμερα6μέρα 19ώρα €999
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. 26 Mobile App Development, Android, Bitcoin, Blockchain, iOS Development Apr 21, 2018 Σήμερα6μέρα 18ώρα €516
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... 12 Κρυπτογράφηση, Bitcoin, Τεχνητή Νοημοσύνη, Blockchain, Ακαδημαϊκή Συγγραφή Apr 21, 2018 Σήμερα6μέρα 15ώρα €28
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 Προγραμματισμός C++, Bitcoin, Blockchain, Ethereum Apr 20, 2018 Σήμερα6μέρα 10ώρα €784
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. 13 Προγραμματισμός C++, Bitcoin, Blockchain, Ethereum Apr 20, 2018 Σήμερα6μέρα 8ώρα €6312
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... 4 Java, Javascript, Γλώσσα Προγραμματισμού C#, Αρχιτεκτονική Λογισμικού, Blockchain Apr 20, 2018 Σήμερα6μέρα 6ώρα €97
crypto cloud mining need web based coin mining script like this one. [το url αφαιρέθηκε, συνδεθείτε για να δείτε] 5 PHP, Μεταλλευτική Μηχανική, Bitcoin, Blockchain, Ethereum Apr 20, 2018 Σήμερα6μέρα 4ώρα €289
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... 7 Javascript, Γλώσσα Προγραμματισμού C#, Κρυπτογράφηση, MySQL, Blockchain Apr 20, 2018 Apr 20, 20185μέρα 20ώρα €111
Make an ICO and ERCfund [το url αφαιρέθηκε, συνδεθείτε για να δείτε] we want to make a fund that is backed by a cryptocurrency using this ercfund code and the end result should be EXACTLY like [το url αφαιρέθ... 20 PHP, Μηχανολογία, Εικονογράφος , Κρυπτογράφηση, Blockchain Apr 20, 2018 Apr 20, 20185μέρα 20ώρα €1811
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 -- [το url αφαιρέθηκε, συνδεθείτε για &n... 19 Bitcoin, Blockchain, Ethereum Apr 20, 2018 Apr 20, 20185μέρα 14ώρα €1549
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 47 Mobile App Development, Android, Bitcoin, Blockchain, Ethereum Apr 20, 2018 Apr 20, 20185μέρα 14ώρα €1444
Need smart contract developer I need a smart contract developer for my contract. Please don't hesitate if you are senior smart contract developer. Thanks 15 Blockchain, Ethereum Apr 20, 2018 Apr 20, 20185μέρα 14ώρα €570
Blockchain Startup I am marketing director for a blockchain startup that is in the final stages of go to market with our product. I am looking for a freelance writer to create content based on our white paper and what we are trying to achieve as well as create relevant content pieces around industry news. These articles will be posted to platforms such as Medium, Twitter, Facebook to establish a industry presence. ... 9 Κοινωνική Δικτύωση, Bitcoin, Νεοσύστατες Επιχειρήσεις, Blockchain, Ethereum Apr 20, 2018 Apr 20, 20185μέρα 14ώρα €11
Blockchain Hi, I am looking for an experienced blockchain developer to develop a project for me. 41 Αρχιτεκτονική Λογισμικού, Blockchain Apr 20, 2018 Apr 20, 20185μέρα 11ώρα €1278
180420 Technical Report Need to write a report on blockchain. Expected to have deep knowledge on blockchain technology 6 Συγγραφή Αναφοράς, Bitcoin, Blockchain, Ethereum Apr 19, 2018 Apr 19, 20185μέρα 5ώρα €15
Blockchain-Free Currency (DAG or own Payment Network - P2P) Public Shared Ledger - DLT I want to create an cryptocurrency with fast transaction/high transaction output for Micro-Transactions with shared public ledger (DLT - Distributed Ledger Technology) for this project to be viable we need an alternative currency wihout blocksize and scalability issues. Directed acyclic graph (DAG) or own transaction protocol. + Minimize storage (Full node - Ledger Storage etc) + High transact... 12 Linux, Προγραμματισμός C++, Bitcoin, JSON, Blockchain Apr 19, 2018 Apr 19, 20185μέρα 1ώρα €841
Bot cryptocurrencies I want to build a cryptocurrency bot for all currencies e for several exchanges example [το url αφαιρέθηκε, συνδεθείτε για να δείτε] 15 Bitcoin, Blockchain, Ethereum Apr 19, 2018 Apr 19, 20184μέρα 22ώρα €3488
Looking for block chain expert (developer) Hello. i am looking for block chain expert. i would like to create block chain system and it's new coin. if you know about [το url αφαιρέθηκε, συνδεθείτε για να δείτε], it will be much helpful for this project. this projec... 40 PHP, Javascript, HTML, Bitcoin, Blockchain Apr 19, 2018 Apr 19, 20184μέρα 22ώρα €6988
Creation and Development of a New Cryptocurrency (ICO) Ethereum based ICO Need to Create Creation and Development of a New Cryptocurrency (ICO) Ethereum based ICO 14 Σχεδιασμός Γραφικών, Σχεδιασμός Λογοτύπου, Κρυπτογράφηση, Blockchain Apr 19, 2018 Apr 19, 20184μέρα 19ώρα €793
Blockchain EOS project In this project we would in most basic terms try to create template on which ICO-S could be created easily on EOS blockchain think of it like a wordpress for smart contracts in this case particularly ICO template. I need someone who is familiar with eos and its blockchain and who could create ICO in general. Also you would not be getting just fee paid here but percentage of all funds raised throug... 8 Προγραμματισμός C++, Blockchain Apr 19, 2018 Apr 19, 20184μέρα 18ώρα €267
Create a New Crypto Currency based on the CryptoNote Algorithm Create a New Crypto Currency based on the CryptoNote Algorithm as per the sequence given here. [το url αφαιρέθηκε, συνδεθείτε για να δείτε] and as per the name, emission logic, difficulty levels, pre mine level and total number o... 17 Linux, Mobile App Development, Android, Αρχιτεκτονική Λογισμικού, Blockchain Apr 19, 2018 Apr 19, 20184μέρα 16ώρα €1728
Develop E Wallet - open to bidding I would like to develop Dapp E-Wallet and website so I can send cyptocurrencies or fiat to my friends. Let me know if have done similar project so we can discuss further. 16 Javascript, Python, Αρχιτεκτονική Λογισμικού, Blockchain, Ethereum Apr 19, 2018 Apr 19, 20184μέρα 16ώρα €1543
Android and iOS blockchain app needed ASAP I need an Android and iOS app. I would like it designed and built. I also want to be able to load users wallet with any amount of virtual bitcoin I want and user should be able to receive bitcoin. 41 Mobile App Development, Android, Bitcoin, Blockchain Apr 19, 2018 Apr 19, 20184μέρα 13ώρα €579
Android Blockchain App I need an Android app. I would like it designed and built. The app should be like blockchain or coinbase . users should be able to create wallet and receive bitcoin and ethereum on it and also send out . 33 Mobile App Development, Android, Bitcoin, Blockchain Apr 19, 2018 Apr 19, 20184μέρα 12ώρα €650
Cryptocurrency ATM Solution Write a program to control a Cryptocurrency ATM and encapsulate it in a Linux Raspberry-Pi3 image. I would like this software to be developed using Python. 6 Python, Linux, Αρχιτεκτονική Λογισμικού, Raspberry Pi, Blockchain Apr 18, 2018 Apr 18, 20184μέρα 6ώρα €223
Ghostwriter for blockchain industry and capital market Looking for an experienced ghostwriter to take thoughts and ideas on the current blockchain industry and capital markets, and turn them into persuasive thought-leadership articles. Topics include pointing out hypocrisies in "decentralized" exchanges, democratizing ICOs, the new wave of ICOs coming in 2018, equity vs cash liquidity, and securities law; All of which should be geared toward... 18 Ghostwriting, Article Writing, Συγγραφή Περιεχομένου, Blockchain, Ethereum Apr 18, 2018 Apr 18, 20184μέρα 2ώρα €32
Blockchain project all specified in the attached word file 6 Programming, Blockchain, Computer Science Apr 18, 2018 Apr 18, 20183μέρα 23ώρα €50
Need help understanding cryptocurrency ERC20 token creation tutorial, troubleshooting potential error Hello, I've followed the following tutorial titled "How absolutely anyone can create a cryptocurrency in 60 seconds" exactly, but cannot 100% get it to work. In MyEtherWallet when I try to view the created Token it states "(error_21) Not a valid ERC-20 token" -- Please could you test the tutorial advising where the error is? How can I see the created token balance, and th... 1 Bitcoin, Blockchain, Ethereum Apr 18, 2018 Apr 18, 20183μέρα 15ώρα €16
ICO CRYPTOCURRENCY I want a blockchain expert and software developer to perform an ico with whitepaper and the website 44 PHP, Σχεδιασμός Ιστοσελίδας, Σχεδιασμός Γραφικών, Blockchain Apr 17, 2018 Apr 17, 20183μέρα 9ώρα €793
build me a site like coinpayments.net - blockchain tech Hello i want to build a site like [το url αφαιρέθηκε, συνδεθείτε για να δείτε] which should have multi wallets in it for every one to receive and send fund. also api integration and all other functions of coinpayments.net. Deve... 19 PHP, MySQL, Blockchain Apr 17, 2018 Apr 17, 20183μέρα 4ώρα €964
Data 'Input & Output' application, done on ETH blockchain smart-contract We are looking for ''Full stack Ethereum Blockchain Developer & or Developer Team''. The entire APPLICATION process will work totally depending on the Ethereum blockchain, as that is what most of the already deployed code does. NO TOKENS should be made at all because this would just complicate the process, and, by our current understanding & research does not co... 25 Javascript, Python, Bitcoin, Blockchain, Ethereum Apr 17, 2018 Apr 17, 20183μέρα 3ώρα €2122
Smart Contract for an ERC20 token The token has been created and is fully functional, we need to develop smart contract for ICO and pre-ICO plus cabinet investor 25 Blockchain, Ethereum Apr 17, 2018 Apr 17, 20182μέρα 20ώρα €1346
Need a simple faucet script for altcoin As mentioned in the title, i need a simple faucet scrip for an altcoin. The script should only have a field to enter a wallet address and a submit button with captcha. The scrip needs to prevent abuse by restricting the number of payouts per day by detecting the IP address. It must be created in php. Design is not required. Simple as that. To be sure that you have read the requirements start yo... 5 PHP, MySQL, Bitcoin, Blockchain, Ethereum Apr 17, 2018 Apr 17, 20182μέρα 18ώρα €33
Crypto Coin with masternode i want to create coin with reward masternode system 4 Αλγόριθμος, Bitcoin, Blockchain Apr 17, 2018 Apr 17, 20182μέρα 17ώρα €561
Need Blockchain Developer I need you to develop my blockchain wallet app. If you are an expert, please bid this project. Thanks in advance. 31 PHP, Javascript, Mobile App Development, Προγραμματισμός C++, Blockchain Apr 17, 2018 Apr 17, 20182μέρα 16ώρα €611
Blockchain Knowledge on smart contract I will require an expertise in research and writing a report on the blockchain, smart contract in relevant to the financial industry. $130 34 Τεχνική Συγγραφή, Research Writing, Blockchain, Ethereum, Ακαδημαϊκή Συγγραφή Apr 17, 2018 Apr 17, 20182μέρα 16ώρα €83
Cryptocurrency / Blockchain Research and Article Writing We require you to write a research paper on the topic that we provide to you. The research paper will need to include enough detailed, reliable information to write 8 articles based on this topic which will then be posted on blogs and forums. Research Paper • Must have a 3000-5000 word count using font ‘times new roman’ with 1.5 word spacing • Must be submitted in Wor... 44 Έρευνα, Article Writing, Research Writing, Blockchain, Blog Writing Apr 17, 2018 Apr 17, 20182μέρα 16ώρα €85
Cryptocurrency POW POS + Masterdnood Looking for blockchain dev , who will be able to assit to make new fork of cryptocurrency based on one of mining algo with Masternodes or, POS + Masternodes 36 Προγραμματισμός C++, Bitcoin, Blockchain, Ethereum, Full Stack Development Apr 17, 2018 Apr 17, 20182μέρα 14ώρα €1235
Crypto Currency exchange platform The goal is to create a crypto platform like yobit and poloniex, propose only if you can do it. Duration : 2months Budget : 3000SGD 26 Blockchain Apr 17, 2018 Apr 17, 20182μέρα 11ώρα €2435
Blockchain SDK Java There is a new blockchain tech with their SDK and i'm looking to build a POC on. [το url αφαιρέθηκε, συνδεθείτε για να δείτε] Minimal documentation so you need to figure things out by reading through their sample projects... 19 Java, Blockchain Apr 17, 2018 Apr 17, 20182μέρα 11ώρα €1602
Bitcoin wallet iOS and Android App I am looking for a professional bitcoin developer to design and build my bitcoin wallet application. You should have experience working with bitcoin project and blockchain. Apply with clear and detailed explanation on how you will do this job by answering their questions. 1. Describe the architecture you will use 2. hosting service you will use. 3. programming languages you plan to use 4. Wallet... 24 Bitcoin, Blockchain Apr 16, 2018 Apr 16, 20182μέρα 5ώρα €2465
SEO Article on Ontology Need someone who knows Ontology Network in depth. Looking for long term writer. 4 Σχεδιασμός Ιστοσελίδας, Κρυπτογράφηση, HTML, Bitcoin, Blockchain Apr 16, 2018 Apr 16, 20181μέρα 18ώρα €27
Ethereum Smartcontract Development Hello there, We need solidity developer who is having good experience in developing ethereum smart contracts. start your reply by mentioning "i read this" to make sure you really read my requirement. Thanks 12 PHP, HTML, Bitcoin, Blockchain, Ethereum Apr 16, 2018 Apr 16, 20181μέρα 15ώρα €141
Blockchain developerq I am looking for blockchain expert in order to build the custom utility tokens and some dapps based on ERC 20/721 standard. Additionally if you have great experience in Javascipt, and ECMA Script, that's good fine for us. 44 PHP, Javascript, Blockchain Apr 16, 2018 Apr 16, 20181μέρα 13ώρα €55
cadena de producción I need some help with my business. 8 Επαγγελματικά Σχέδια, Σχεδιασμός & Αγορά Διαφημίσεων, Blockchain Apr 15, 2018 Apr 15, 20181μέρα 8ώρα €133
I need ERC 20 smart contract fixing or issue or audit Hi, You will be doing the following: -A complete audit of ERC 20 Smart contract and provide an audit report -Find issues and fix How many smart contracts audits you have completed? Please provide sample audit report. 13 Κρυπτογράφηση, Blockchain, Ethereum Apr 15, 2018 Apr 15, 20181μέρα €726
Understand how Bitfinex calculates transactions? By adding all of my transactions that the API returns, I can not find the result that I have in my balance. Example with IOTA: My balance is 281.64315651000 IOTA (return by /v1/balances) List of transactions (return by /v1/mytrades): [ {"Price": "0.0002993", "amount", "79.28790511", "timestamp", "1513796864.0", "type&qu... 1 Metatrader, Κρυπτογράφηση, Bitcoin, Blockchain, Ethereum Apr 15, 2018 Apr 15, 201816ώρα 17λ €112
Blockchain Expert Required Urgently I need multipool server with next coins: ETH - ETP - PIRL - EXP - MUSIC - UBQ - ETC – ELLA Also i need next coins: Monero (CryptoNightV7) i Zcash (Equihash) If not possible to put all on one server well we install on 2 servers First coins is all ethash coins and i pretty sure can be on one server Other coins is cryptonight and Zcash… Server must be qualitative&nbs... 12 PHP, Διαχείριση Συστήματος, Linux, Bitcoin, Blockchain Apr 15, 2018 Apr 15, 201813ώρα 23λ €2056
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