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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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    29 건 검색 완료, 금액 기준 - USD

    Hi, Digital Warriors, We're seeking a script crypto exchange. Im just looking for a ready solution. Before buying i need to watch a demo. I do not need to develop from scratch, such a proposal please do not write to me. Please don't contact me for upfront payments. My method of payment is by creating milestones and release it once the task was completed.

    $609 (Avg Bid)
    $609 평균 입찰가
    18 입찰
    QT WALLET DEVELOPER 6 일 left
    확인

    Hello, We created with photoshop (.psd) our new design for our futur wallet QT, and we looking for an developer for implement our design. Thank you.

    $155 (Avg Bid)
    $155 평균 입찰가
    7 입찰
    $871 평균 입찰가
    13 입찰

    i need a cryptocurrency exchange for bitcoin, xrp, bch, eth, ltc, etc... please send me prices i want something like [로그인하시면, URL을 확인하실 수 있습니다.] i already have dedicated server

    $4288 (Avg Bid)
    $4288 평균 입찰가
    57 입찰

    I need Bitcoin Node to be installed with API key. The whole server must be install securely and should be penetrate able. Server must run a full node with API access. API must be use able to create/generate new wallet addresses, Node must be able to send and receive payments, Node must be automatically transferring funds from node wallet to a cold / hardware wallet. Server must be protected agains...

    $388 (Avg Bid)
    $388 평균 입찰가
    8 입찰

    We are looking for someone with a lot of experience with blockchain and wallets. We are looking for someone that can update the entire wallets UI and add additional features such as a graph, seed key. Ideally looking for around the 500-600$

    $588 (Avg Bid)
    $588 평균 입찰가
    17 입찰

    I need trading cryptocurrency market fully functional, similar to big exchangers. - Wallet - deposits and withdrawal of crypto only. Knowledge of digital currencies and how cryptocurrency market work. Please do provide links to similar project you have done.

    $1221 (Avg Bid)
    $1221 평균 입찰가
    42 입찰

    I am looking for Co founders blockchain programmer and ICO specialist to start new project

    $19 (Avg Bid)
    $19 평균 입찰가
    5 입찰

    Hello! I need a script crypto exchange, just looking for a ready solution. Before buying, I need to watch a demo! I do not need to develop from scratch, such a proposal please do not write to me!

    $1273 (Avg Bid)
    $1273 평균 입찰가
    35 입찰
    Bitcoin jackpot site 4 일 left
    확인

    Looking for partner (paid small amount while working and then site revanue) I want a bitcoin jackpot site (script) Players register and deposit btc. They then ret credit on the site to use in the jackpot. Jackpot is timed so Player can join in and try win the pot. Site profit is 10% of each played game. Dont reply of you havent read it all. Dont reply og you dont Know what bustabit crash gam...

    $91 (Avg Bid)
    $91 평균 입찰가
    4 입찰

    Greetings, digital warriors, We're seeking a capable developer with experience writing smart contracts. We will be embarking on our ICO sometime in January, and need a smart contract to be written for us. We will take care of the ICO landing page (front/back-end), and we will have a payment gateway ready (Coinpayments). All we need from you, is a rock-solid smart contract that will enable...

    $2769 (Avg Bid)
    $2769 평균 입찰가
    52 입찰

    I need to generate new genesis block insted of current one for POW/POS cryptocurrency, with new vAlertPubKey and scriptPubKey all instruction and steps should be include. award will be according to best price

    $180 (Avg Bid)
    $180 평균 입찰가
    8 입찰

    Hello! I need a script crypto exchange, just looking for a ready solution. Before buying, I need to watch a demo! I do not need to develop from scratch, such a proposal please do not write to me!

    $1404 (Avg Bid)
    $1404 평균 입찰가
    43 입찰

    I'm trying to modify pool codes in a mining pool using SHA 256 and redeem the hashes in another coins . Basically my device only process SHA 256 but wondering if we could program the pool to convert the algorithm ? please contact me if you have experience in this filed. my method of payment is by creating milestones and release it once the task was completed . had lots of good reviews so far...

    $461 (Avg Bid)
    $461 평균 입찰가
    15 입찰
    Bitcoin Shop & Wallet 3 일 left
    확인

    We need website or web application for sell bitcoins & Cryptocurrency online by credit card like this page [로그인하시면, URL을 확인하실 수 있습니다.] The client register in our website and he must get wallet for send and receive the bitcoin

    $1026 (Avg Bid)
    $1026 평균 입찰가
    36 입찰

    ERC20 token listing with 1 - 2 eth budget.

    $536 (Avg Bid)
    $536 평균 입찰가
    25 입찰

    hello! we are looking for people who can get us a decentralized crypto exchange you can looking at this website [로그인하시면, URL을 확인하실 수 있습니다.]

    $2330 (Avg Bid)
    $2330 평균 입찰가
    13 입찰

    we need someone to write, publish and manage an ICO bounty program 1. BOUNTY CAMPAIGN ANNOUNCEMENT 2. MANAGE THE BOUNTY CAMPAIGN ITSELF Looking for an experienced bounty manager to manage our bounty campaign for an ICO. We our an upcoming ICO Project and need a bounty manager for an ICO camapign. Your tasks include community management for our different Bounty Campaigns and Airdrops for an ...

    $475 (Avg Bid)
    $475 평균 입찰가
    11 입찰
    cryptocurrency 2 일 left
    확인

    i want to create a cryptocurrency for payment.

    $762 (Avg Bid)
    $762 평균 입찰가
    24 입찰

    I am looking for a blockchain developer experienced in setting up Electrum wallets. Project's description and features is attached.

    $331 (Avg Bid)
    $331 평균 입찰가
    11 입찰

    Hi. I am going to develop new blockchain. I will share details for right freelancer.

    $1140 (Avg Bid)
    $1140 평균 입찰가
    34 입찰

    We need ERC20 token Service Developer. We are looking for a highly skilled developer who can provide us ERC20 Services. We are looking for • Get Balance • Token Send/Receive • Token Address Generation • Transaction History Please Note: • You will need to handover the full development source code to us. • Should be developed with PHP CodeIgniter. • We need the se...

    $543 (Avg Bid)
    $543 평균 입찰가
    18 입찰

    1. Create a masternode coin like pivx 2. Create block explorer 3. Create QT wallets ( Win - 32-64, Linux, Mac ) 4. Publishing source code in github [로그인하시면, URL을 확인하실 수 있습니다.] masternode guide 6. guide to install the seednode Please note : I require only professional developers , I will first check if the coin chain is smooth or not I mean no bugs in the coin or proof of stake

    $994 (Avg Bid)
    $994 평균 입찰가
    11 입찰

    El proyecto es crear una calculadora de minería de criptomonedas. 1. Programación de la calculadora. - Se te entregarán las ecuaciones necesarias. - Se extraerá la información de una API Rest externa. 2. Diseño de la calculadora. - Se te entregará el diseño desktop para que crees la plantilla. - Debe ser mobile-friendly. Hablemos por cha...

    $509 (Avg Bid)
    파워형
    $509 평균 입찰가
    17 입찰

    I need a Blockchain Developer capable of producing a fork with basic Blockchain Adjustments like Block Time, Block Reward, Block Halving, Etc. We would like a wallet implemented and designed as well along with several additional aspects to the development but nothing to extensive. We would require someone with at least 2-3 years experience with Blockchain Developer. ***NOT SMART CONTRACTS! SOL...

    $36 / hr (Avg Bid)
    $36 / hr 평균 입찰가
    42 입찰

    I want to develop a proprietary service for my customers. Essentially, it's going to be a stripped-down version of blockchain. I need someone who is knows blockchain inside out - to the point where theyre not helplessly enamoured by it. If you know what you're doing, this is a walk in the park. If you're wrapped up in your crypto bubble, stay there, I have no use for you

    $1559 (Avg Bid)
    $1559 평균 입찰가
    38 입찰

    I want to start a new coin POS/POW. Please bid if you have already developed coins. Looking forward for serious dev..

    $968 (Avg Bid)
    $968 평균 입찰가
    9 입찰

    Create a new Crypto Currency by Improving open source existing codes and ensure its reliability to connect to external environments, and implement sepcific specs and deliverables and high level security.

    $3393 - $5654
    파워형 봉인 NDA (비밀 유지 계약서)
    $3393 - $5654
    65 입찰
    Crypto expert required.. 2 시간 left
    확인

    I need a Crypto expert for my current projects. If you have knowledge please bid. Details will be shared in message with the freelancers.

    $7 - $72
    봉인
    $7 - $72
    30 입찰

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