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Bitcoin is a crypto currency, with the creation and the transfer of the bitcoins being based on a protocol that does not depend on the central authority. The coins can be transferred through computers or through smartphones and related devices, without the necessity of having a financial institution as an intermediate. This concept was established by Satoshi Nakamoto in 2008 and it was geared towards the world of electronic cash systems. If you understand more about this topic on a professional level, then you have a better chance to enjoy the advantages of being a freelancer at Freelancer.com.

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    48 仕事が見つかりました。次の価格: USD
    trading bot for Binance 6 日 left
    認証完了

    Hello all, I have ready python code for the BTC/USD trading bot that and I want to start live trading using Binance API . work scope ; 1) update code to start live trading in Binance market using Binance API 2) get historical data do backtesting to validate code working properly

    $140 (Avg Bid)
    $140 平均入札額
    1 入札

    We have full node running, working fine, we used to send transactions in 1-2 seconds, now it is talking 8 seconds. Our [ログインしてURLを表示] file is around 1.1 GB. Now How can you help to speedup the BTC sending payments, if you have such experience let's connect. I need working file in php to do transaction and I will verify if it will send transactions in 1-2 seconds as before.

    $140 (Avg Bid)
    $140 平均入札額
    1 入札

    I want a full service bitcoin wallet and merchant service with all the features if Bitpay or [ログインしてURLを表示] with bitcoin as the only source for payment. I need anybody to be able to accept payments using this platform without having to apply for a merchant account. Easy to use copy and paste merchant embed code into a users website is a must as well as more complicated shopping cart integrations. ...

    $1881 (Avg Bid)
    $1881 平均入札額
    12 入札

    Hello There! Trust Wallet code link: [ログインしてURLを表示] Link of desktop wallet LQX Coin: [ログインしてURLを表示] (linux) [ログインしてURLを表示] (windows) The basic manual for compiling and deploying the application for Android and IOS must be prepared Scope: 0. Add the LQX Coin coin to the wallet portfolio and test the sending and receiving of coins. When you're ready send me the address and I'll send y...

    $21 - $179
    シール
    $21 - $179
    0 入札

    I need a custom bustabit betting script. I have a current one attached that is very basic. I dont want a martingale. I want the bets to go up 2 units when I lose and down 1 unit when i win. This will continue until I am in profit even 1 bit more than when I was at the start of the sequence. It will restart at the base bet every time it is in profit.

    $100 (Avg Bid)
    $100 平均入札額
    1 入札
    Help with RubyKube Peatio 6 日 left
    認証完了

    Hi, I am looking for someone to Install rubykube opensource software on a server and make a few customizations. Add in Fiat support with API Add Cardano as an extra cryptocurrency on the exchange.

    $1565 (Avg Bid)
    $1565 平均入札額
    11 入札

    Help me to build a blockchain platform..

    $212 (Avg Bid)
    $212 平均入札額
    14 入札

    An ICO and asset tokenization service provider is looking for a marketing executive for its Cryptocurrency and DeFi business development issues. Payments are based in crypto coins and tokens in a monthly basis. Applicants must have massive experience in initial exchange offerings (IEO) and initial coin offerings (ICO) marketing and business development.

    $16 / hr (Avg Bid)
    $16 / hr 平均入札額
    1 入札

    Hello There, Only expert follow the project More detils via chat box . Thank You

    $21 - $179
    シール
    $21 - $179
    4 入札
    Add stocks to Crypto Platform ! 5 日 left
    認証完了

    Hello Everyone, I got a cryptocurrency platform it has charts options to trade all types of cryptocurrencies. I need to add STOCKS to it!!! Here is my platform... [ログインしてURLを表示]

    $652 (Avg Bid)
    $652 平均入札額
    13 入札
    Create a bitcoin wallet in c# 5 日 left
    認証完了

    Make the below project build and run on my pc. [ログインしてURLを表示]

    $157 (Avg Bid)
    $157 平均入札額
    10 入札

    BITCOIN MINING INVESTMENT PROGRAM

    $2 - $8 / hr
    $2 - $8 / hr
    0 入札

    Crypto currency investment platform for bitcoin [ログインしてURLを表示], apply if you are interested for business

    $23 / hr (Avg Bid)
    $23 / hr 平均入札額
    4 入札

    Create an secure online Crypto Wallet for our company !

    $168 (Avg Bid)
    $168 平均入札額
    7 入札

    Need someone experienced on the above , and who has done projects in them to submit a short research report , answering a few specific questions , and recommending a rough logic/algorithm for implementing a function in crypto .. The task can ideally be finished quite quickly for someone experienced who has done this before. Key Questions : 1) About building unique digital assets for existing ...

    $65 (Avg Bid)
    $65 平均入札額
    4 入札

    ENGLISH : i need to develop an ethereum erc20 gateway payment method This means that when a person registers on my platform they will be assigned a new erc20 wallet. from there you can deposit and this balance is loaded on the platform. When withdrawing the balance you will have to make a withdrawal request. This means that I only need a deposit function and not a withdrawal function. I wa...

    $1113 (Avg Bid)
    $1113 平均入札額
    13 入札

    Beseeching fot bitcoin and blockchain experts to build platform.

    $218 (Avg Bid)
    $218 平均入札額
    7 入札

    create DAEMON(WALLET) of united bitcoin for windows wallet

    $167 - $500
    $167 - $500
    0 入札

    I need a personal assistant to handle mini administrative duties. Working is remote and flexible, ideal candidate is a fast learner and hard worker

    $18 / hr (Avg Bid)
    $18 / hr 平均入札額
    54 入札

    I need an expert who can build a user interface and a backend interface for our btcpayserver. Our users are website owners who want integrate bitcoin payments on their websites. For each transaction made at our btcpayserver they pay a percentage of the transaction amount to us. User frontend must have a accounting system for paying the transaction costs with bitcooins or with ideal on their ac...

    $19 / hr (Avg Bid)
    $19 / hr 平均入札額
    13 入札
    Cryptocurrency P2P platform 4 日 left
    認証完了

    Crypto P2P platform with language translator and geo location.

    $979 (Avg Bid)
    $979 平均入札額
    11 入札

    This website will have: - Game (game + relevant Admin Panel data + provably fair) - Deposit and withdraw (Bitcoin + Welcome Bonus) - Affiliates (Invite users for % of commission with affiliate code/link) - Level up (levels up the user and users receive rewards) - Chat (including moderators) - etc Message me for more information including document with the features + requirements, images ...

    $4456 (Avg Bid)
    $4456 平均入札額
    20 入札

    required a cryptocurrency who can find Raw transition from explorer of united bitcoin.

    $521 (Avg Bid)
    $521 平均入札額
    4 入札
    blockchain/ kraken api 3 日 left
    認証完了

    looking for a dev to integrate a crypto withdraw function using kraken api. can also integrate stellar codes

    $678 (Avg Bid)
    $678 平均入札額
    9 入札

    I am trying to fix some issues on my mining pool. I need someone who has vast knowledge of Bitcoin Core software and has worked on Mining Pool Software like Miningcore.

    $111 (Avg Bid)
    $111 平均入札額
    1 入札
    Bitcoin arbitrage api 3 日 left
    認証完了

    i need a developer that have experience in api from binance, kucoin and bitifinex to give me some results of arbitrage in many products with historic. you will have to develop this apis with binance, kucoin and bitifinex , connect and test arbitrage of btc and others, and give me the results historic.

    $115 (Avg Bid)
    $115 平均入札額
    2 入札

    Hi, I need someone to create secure way to deposit and withdraw BTC, ETH and LTC from my website. It can use 3rd party application to send the currency but it has to be secure and the fee cant be high. Each user had to have 3 different balance for each coin.

    $1102 (Avg Bid)
    $1102 平均入札額
    13 入札

    I want to build a custody system in blockchain

    $2537 (Avg Bid)
    $2537 平均入札額
    12 入札

    Hello , I have bitcoin node server and I want to implement bitcoin deposit and withdraw with this. Please bid if you have enough experience for this bitcoin node server. Thanks.

    $255 (Avg Bid)
    $255 平均入札額
    5 入札

    Anyone having experience in ethereum and solidity language can ping me i have one interesting project.

    $17 (Avg Bid)
    $17 平均入札額
    3 入札

    Hi, I just got back from the National Bitcoin conference in Miami and finally think I am ready to pursue my own token. I have been in the cryptocurrency space since 2012. Although, have only been approaching it seriously this past year. I am very approachable, easy and fun to work with. I am needing a developer who fully understands blockchain principles, who I can run my ideas against and hopef...

    $2867 (Avg Bid)
    $2867 平均入札額
    9 入札
    ERC20 Ethereum Token 1 日 left
    認証完了

    I am looking for someone expert in developer token erc20 on ethereum. I know its easy and quick and will not take much time

    $317 (Avg Bid)
    $317 平均入札額
    4 入札

    i will like to develop a cryptocurrency wallet for my token

    $537 (Avg Bid)
    $537 平均入札額
    10 入札

    Billetera de criptomonedas como [ログインしてURLを表示] o [ログインしてURLを表示] o [ログインしてURLを表示] que permita depositos en MXN y exchange a Criptomonedas.

    $1034 (Avg Bid)
    $1034 平均入札額
    5 入札
    Bitcoin Casino 1 日 left

    Hello We are looking to form a relationship with a developer who has the skills necessary to create a bitcoin casino Main features would include Account creation Basic Crypto Front in Deposit/withdraw Referal/Reward system Implemented crypto games such as crash,Dice,Mines,Keno,Pachinko We would not need any Art/Logo We also would not need any Slot integration and no live games currently (crazy ti...

    $4349 (Avg Bid)
    $4349 平均入札額
    26 入札

    Seeking bitcoin developer who have experienced in Kraken and Stellar. If you have experienced in these APIs , please feel free to bid, Unless don't waste your time.

    $140 (Avg Bid)
    $140 平均入札額
    1 入札
    Bitcoin master 1 日 left

    Looking for bitcoin master. Need deep knowledge about bitcoin and Kraken, Stellar RestAPI. Please feel free to bid, if you are interested.

    $200 (Avg Bid)
    $200 平均入札額
    7 入札

    i want bitcoin expert to help me in trading

    $204 (Avg Bid)
    $204 平均入札額
    5 入札

    HIRING (HOURLY PAYMENT) AN EXPERT CRYPT0-TRADER (ARBITRAGE) ON H-I-G-H COMMISSION BASIS. READ THE PROJECT CAREFULLY BEFORE BIDDING.

    $46 / hr (Avg Bid)
    $46 / hr 平均入札額
    2 入札

    HIRING (HOURLY PAYMENT) AN EXPERT CRYPT0-TRADER (ARBITRAGE) ON H-I-G-H COMMISSION BASIS. READ THE PROJECT CAREFULLY BEFORE BIDDING.

    $46 / hr (Avg Bid)
    $46 / hr 平均入札額
    3 入札

    I need to run services to provide an cryptocurrency wallet for crypto coin need only to provide BTC ETH XMR DASH and DDKOIN wallet like what exodus , coinbase , trust wallet other wallet in the market. the system have have a security level to product the user wallet account need app for android / iOS. I would like it designed and built. please let me know if you can do this. and please bid if...

    $657 (Avg Bid)
    $657 平均入札額
    10 入札

    We need graphic interface improved. Our website: [ログインしてURLを表示]

    $1111 (Avg Bid)
    $1111 平均入札額
    18 入札
    StockChart 23 時間 left

    I need some help with my business.

    $36 / hr (Avg Bid)
    $36 / hr 平均入札額
    17 入札

    IMMEDIATELY WANTED (Hourly Pay) A Crypt0 Trading Expert On C0inMarketCap (If You're Not, Then Don't Bid). BID NOW.

    $53 / hr (Avg Bid)
    $53 / hr 平均入札額
    4 入札
    Need ERC20 Token Expert 20 時間 left
    認証完了

    I Need ethereum token expert. who has proper knowledge of erc20 token contract. plus he is good in script or program marker. web3 expert also.

    $22 (Avg Bid)
    $22 平均入札額
    2 入札
    BTC Recovery 17 時間 left
    認証完了

    I need help with recovering my BTC transaction for which reciever says it never got it. I want someone who is expert in blockchain exploring and tracking and can make a track of where exactly the transaction is

    $104 (Avg Bid)
    $104 平均入札額
    6 入札
    Newswriter specialized in cryptocurrency 16 時間 left
    認証完了

    We are currently looking for newswriter able to research and write current news on topics related to Bitcoin, cryptocurrencies, projects in the sector and also opinion articles. We need to fill vacancies for publishers who submit multiple (5-10 weekly) short articles per week of around 400 words each (minimum), which will be paid at $ 4 per article. If your works are of quality you will have wor...

    $59 (Avg Bid)
    $59 平均入札額
    10 入札
    blockchain core 終了 left

    Same core as [ログインしてURLを表示] but written by node.js Rules: Decentralised social network same as Instagram What we are expecting Blockchain core Api to integrate the web app : Create Wallet Create transaction Get balance Like interaction We will provide the details once we choose the winner

    $642 (Avg Bid)
    $642 平均入札額
    9 入札