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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    41 Gefundene Jobs, Preise in EUR

    Please read provided PDF for full job description. Placeholder bids and proposals that do not fully encapsulate the scope of work WILL NOT BE CONSIDERED.

    €249 (Avg Bid)
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    7 Angebote
    Trophy icon Blockchain Assistant neeeded 20 Stunden left

    I'm looking for someone who can send me 0.02 BTC-coins this means about $170 I'm ready to pay (270$ in advance) here, but i need the coins in next hours

    €24 (Avg Bid)
    Eilig Garantiert Versiegelt
    €24
    1 Einträge

    Private community blockchain with a fully usable admin panel. May also be a need to connect it to an existing mobile app and possible e-commerce site creation

    €3398 (Avg Bid)
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    27 Angebote
    Technical article writing 5 Tage left
    VERIFIZIERT

    I need a technical article of 1000 words with facts and graphs on any of the following subjects: a. Adoption of blockchain in online gaming industry and how it is changing gaming b. Possible use cases of implementing IoT in gaming c. Possible use cases of implementing IoT in It Infrastructure Management d. Using blockchain in HR Systems (recruitment/hiring/HRMS/employee engagement/payroll etc) e. ...

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    I have ready bitcoin auto buy systems source, i just need implement these systems into my currently source

    €31 (Avg Bid)
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    My dev has done a development of pow pos mn coin, when he debug, he got the hash doesnt match with nBites. He said it was possibly because of the bad quality of hash. developer needed to help me fixed this. please send me the portfolio of your previous project expecially in building cryptocurrency

    €463 (Avg Bid)
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    14 Angebote
    Project manager in blockchain 5 Tage left
    VERIFIZIERT

    I need some help with my business. For Project Managers A manager who organizes the business plan, improves projections, metrics and financial metrics, organizes and creates project documentation, and manages budgets and closes with the best team for the needs I have. Our work is focused on blockchain and we are now devoting ourselves to the stellar, theta and Dovu protocols. Profound Knowledg...

    €148 (Avg Bid)
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    need someone to write an app based on the DAML language.

    €370 (Avg Bid)
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    4 Angebote

    Looking for a skilled IT developer to build Bitcoin drop-shipping service for consumers. Detailed information will be provided via PM.

    €3957 (Avg Bid)
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    57 Angebote

    I need to add some changes to this script.

    €139 (Avg Bid)
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    23 Angebote

    I need to add some changes to this script: - attach a proof of payment of the bank transfer within a certain period of time in minutes with a countdown displayed, if it has been attached then the order is awaiting payment and in the admin area I can see the attachment and if that file is correct or not, if it is not then I can delete the order with automatic notification to the customer. - during...

    €161 (Avg Bid)
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    Blockchain development 4 Tage left
    VERIFIZIERT

    We need a parity substrate based blockchain, similar to a project named edgeware ([Zur Anzeige der URL Anmelden]). Although some characteristics would differ.

    €687 (Avg Bid)
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    10 Angebote

    I am Dennis Walters a member of the locus chain foundation group. We are looking for a Blockchain developer who is capable of integrating a smart contract.

    €1828 (Avg Bid)
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    15 Angebote

    we are looking Freelancer Blockchain Technology Trainer only in India. Training Hands-on projects Blockchain Hands-on Implementation Block chain based crypto currency Implementation. Block chain based smart contract.. Many more

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    EOS DAPP and Relative Token 4 Tage left
    VERIFIZIERT

    Hello, I'm looking for a developer to create an EOS Dapp + relative token. Company based in Italy. The programmer must be aware of EOSIO's blockchain technology and show qualifications. Serious and urgent work. Please contact me if you are interested. Thank you.

    €2469 (Avg Bid)
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    EOS DAP and Relative Token 4 Tage left
    VERIFIZIERT

    Hello, I'm looking for a developer to create an EOS Dapp + relative token. Company based in Italy. The programmer must be aware of EOSIO's blockchain technology and show qualifications. Serious and urgent work. Please contact me if you are interested. Thank you.

    €431 (Avg Bid)
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    If you have ever successfully created an Everipedia article, please apply! EOS blockchain specialists familiar with Everipedia are also welcome to apply. We are looking for someone proficient with Everipedia (one of the largest online encyclopedias) to transfer articles from Wikipedia and other wiki sites to Everipedia (we are already proficient with Wikipedia). Everipedia encourages paid freel...

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    ***Please apply ONLY if you have successfully written and posted an Everipedia article OR are familiar with EOS blockchain technologies.*** If you have ever successfully created an Everipedia article, please apply! EOS blockchain specialists familiar with Everipedia are also welcome to apply. We are looking for someone proficient with Everipedia (one of the largest online encyclopedias) to tra...

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    Very simple bitcoin payment script 4 Tage left
    VERIFIZIERT

    I need a simple bitcoin payment script that automatically delivers the buyer a secret hash after successful payment. This hash will be used to login for my site when it’s ready. The price will be set to $99usd for my product and after successful payment they will receive an automatic code which be used to login to my site. No one else should ever be able to see this code as it won’t be...

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    I need some help with my business... Consultation required for e-commerce footwear startup. Looking forward to help me as an Mentor for very long term.... please note - Experts in footwear industry is the main requirements here...

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    Experience in building a trading app. Need to develop using the latest techno.

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    I'm looking to get an application made on solidity or hyperldger that allows users to post p2p loan offers or requests using smart contract. The person borrowing the loan must send collateral to a smart contract address before taking the loan and they will be able to borrow a certain percentage of the value of their collateral (default 50%) i.e. if they have 1 eth to use as collateral the...

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    Looking for expert blockchain developer who has good knowledge and expertise on creating wallets for crypto coins. I have a code of new coin and I want developer to look into the code and figure out how to create wallet out of it.

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    How blockchain technology would be used in warhouse hosue managemen , please share references

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    I want a decentralized service as simple as can be. Users will pay into the smart contract and will be tumbled / mixed and the outcome will be safe / anonymous ether. Admin address will receive 1% commission on all transactions. Gas fees will be covered by the person making transaction. The focus should be on speed and anonymity!

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    An application like f-b built using BC

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    I need to set up my own ARK server using AWS, however I am not sure how to do it. Please apply if you are familir with ARK's core - commander. [Zur Anzeige der URL Anmelden]

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    Contiki, NS3 tools expert 2 Tage left
    VERIFIZIERT

    Check the attached files for reference

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    For our project, we have created a smartmeter to connect via nodemcu wifi module to adafruit and use MQTT to publish on node-red for blockchain integration. The issue is even though MQTT connection works just fine, I am having trouble connecting to my blockchain and adding blocks. there are plenty errors when it comes to pushing to blockchain. Node-red and blockchain knowledges are required to res...

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    Hello Companies and Developers... I am looking for one of the best individual or company who has already done sports betting website with gambling games like Roulette, Dice, Crash, Blackjack... Similar website - [Zur Anzeige der URL Anmelden] Once you will present the demo with admin we will provide some changes and next step would be integration of EOS Dapp. *** Please only bid with working d...

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    Assisting me in writing a new project architecture and documentation document for 10 hours I need multiple persons The project will be on mobile and desktop and web and server

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    For the Development of a Blockchain Framework for Robotic Swarm Systems, we are recruiting freelances to create an interdisciplinary team, who will execute the project framed in an Initial Coin Offering (ICO) financial scheme. In addition of the conventional economical remuneration, the freelances will receive tokens. These are the different skills of the members of the team: - Engineers. - Progr...

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    I am looking for someone who is experienced in using blockcypher and creating ethereum contracts. You will need to show me how to setup a smart contract using ethereum that sends funds from one address to two different ethereum addresses using blockcypher as described here [Zur Anzeige der URL Anmelden] using javascript. Here is an example: Setup a smart contract that sends ethereum from wallet...

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    Blockchain App 2 Tage left
    VERIFIZIERT

    Hello, I want to know budget and times for an app that has the ability to register any document in the blockchain. It will be an application where each company will have its access and will know what hash has been saved and to know that those documents have not been manipulated. I thought it could be a public blockchain or a private Hyperledger Fabric. I do not know very well how to connect the do...

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    Create Ethereum DAPP type like [Zur Anzeige der URL Anmelden] but wih my proporcions and on ETH blockchain. Nice Website with smart contracts.

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    Looking for an experienced Haskell developer that can build smart contracts using Plutus which is a subset of Haskell on the Cardano blockchain.

    €28 / hr (Avg Bid)
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    Apps restfull blockchain 1 Tag left
    VERIFIZIERT

    I need developers to deliver a complete application with requirements analysis, design, front, back, infra, security, restfull architecture, admin, system for consultants connected to all apps and monthly monitoring 24/7 for 3 apps interconnected an openbanking app api) with steelar protocol for financial transactions, the second a streaming app in the improved model that the Spotify / netflix en...

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    Coin Wallet (Web-IOS-Android Wallet) 22 Stunden left
    VERIFIZIERT

    You can use any opensource wallet. But i want easy-usefull-securable-performance. I want to my custom wallet on my own server. Web wallet-IOS wallet-Android Wallet. Complete wallet app platform that can sending, and receive crypto with instantly transact with anyone in the world and transactions. Setting screen with 2 Factor authentication. Offline paper wallet backup User documents verification...

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    READY TO BE INTEGRATED COINPAYMENT API IN MLM FORCE MATRIX MLM SYSTEM. PAYMENTS CAN BE MADE AUTOMATICALLY WITH BITCOIN. site to add payment method: [Zur Anzeige der URL Anmelden] USER: test Pass:123456

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    Fast Food Web App 3 Stunden left

    We need extra help to complete a project. The remaining features are to work on the app's fulfilment system for restaurant orders. Experience required: 1. PHP 2. AngularJS 3. Blockchain 4. MySQL The app is called Bill. Bill is committed to making those important payments to fast food restaurants. Whenever you need to place an order, Bill will process them for you in an instant. All you hav...

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    Crypto Currency Beendet left
    VERIFIZIERT

    We need same Cryptocurrency platform as bitcoin a separate coin network on its own Blockchain and with all new features as bitcoin. We don't want to use Etherium or other Blockchain.

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