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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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    98 jobs found, pricing in USD

    I want to create a new cryptocurrency based on a coin and not a token. The hosting will take place on the cloud (your choice). The new coin priced will be based on the price of gold. 1 gram of gold will be equal to 10 crypto coins. So if the price of gold is $50 per gram, then 1 crypto coin will be worth $5. The price of the crypto coin should follow the market price of gold, so if gold price...

    $520 (Avg Bid)
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    Looking for developer who can help us with the Blockchain development for our company.

    $2499 (Avg Bid)
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    bitcoin dev 6 days left

    I am looking for a developer who can develop Blockchain BITCOIN & ETHEREUM Flashing software. With this software I will be able to do the following; 1. Should be able to work and upload with a bitcoin wallet having zero current balance. 2. Any uploaded bitcoins should be transferable up to five wallets (wallet to wallet). 3. The uploaded bitcoins should be able to remain visible in any wall...

    $1500 (Avg Bid)
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    We need an EXPERIENCED ICO whitepaper designer for a P2P crypto exchange project. All HTML work completed and we have much related materials for you to use. Backend in [login to view URL] is [login to view URL] token has been created. Some requirements: [login to view URL] be 30-40 pages (5000-7000 words) [login to view URL] Charts and graphics to visualize data [login to view URL] colors ...

    $475 (Avg Bid)
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    looking for people to grow my telegram community with only REAL ACTIVE users that are in the CRYPTOCURRENCY FIELD ONLY! Looking for people that can show results SAME DAY!

    $17 (Avg Bid)
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    Creation of smart contract on binance smart chain that take the 10% of each transaction on pancakeswap. We want only the coding, and the help to deploy, send some tokens to some other wallets and add some liquidity on pancakeswap for the starting price of the token. BLOCKCHAIN ETHERUM BINANCE SMART CHAIN BSC TOKEN BEP-20 SMART CONTRACT CONTRATO INTELIGENTE CRYPTOMONEDA CRYPTOCURRNECY CREATION OF...

    $368 (Avg Bid)
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    The skills & knowledge needed for this project in mind are; - MySQL - PhP - Cryptocurrency - Experiences with eCommerce's and Marketplaces And some more things that you will know only if you're interested in.

    $180 (Avg Bid)
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    IoT, cloud, and block chain 6 days left
    VERIFIED

    Needing a help for the new technology like ( IoT, cloud, and block chain )

    $100 (Avg Bid)
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    1 bids
    Blockchain -- 2 6 days left
    VERIFIED

    I'll like to discuss a project with you. I have a client looking to develop a defi app on the bsc blockchain. Similar to these two app combined : [login to view URL] + [login to view URL] So staking/swap/launchpad mechanism.*

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    I was tricked and sent money to a fake Bitcoin website. I need the money out of the fake site is this possible with a software engineer?

    $535 (Avg Bid)
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    Dear all, I am in the process of developing a new blockchain based token, however, I am looking to replace the concept with a new one. *******SCOPE*********** *In need of one or multiple IDEAS for a Crypto-Token. (ideas regarding the function/functionality of the token)* The scope is very simple, we want to build a crypto-token that has the most chances of being mass-adopted by the crypto-commu...

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    I want to build a real estate asset tokenization platform.

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    hello, I am looking for a crypto telegram bot based on python, scrap data from Binance market api and use it to display to my users of the bot. including push notifications features. LIST OF FEATURES price e.g btcusdt (Include ask bid low high vol change % funding rate and next funding time. charts market cap walls ( buy and sell based on Binance order books) greed index alert on coin price ( su...

    $253 (Avg Bid)
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    Necesitamos un project manager para trabajar preferentemente desde España. Requisitos: Nivel medio de HTML, JS y nivel alto en Solidity. Preferentemente experiencia en creación de plataformas web (presentar portfolio) Preferentemente nivel de inglés fluido, ya que estará a cargo de programadores extranjeros. We need a project manager to work preferably from Spa...

    $21033 (Avg Bid)
    Local
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    I’m looking for someone to fix issues I’m having with my Bitcoin wallet website.

    $16 / hr (Avg Bid)
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    WEB 3 Projects 5 days left
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    Looking web 3 specialist must know how to code blockchain products and other things on Web 3!

    $433 (Avg Bid)
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    Excel Expert 5 days left

    looking for a professional in excel work sheet to be employed due to an up coming project in the USA and will be paid wholesomely.

    $31 / hr (Avg Bid)
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    35 bids
    Help Building an ERC-20 Token 5 days left
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    I lead a team of software engineers and am looking to launch a DeFi token project. I need someone who can answer some questions and give some pitfall-avoidance guidance to me so that we can get this launched quickly. I have already gone through some ERC20 crash courses and have a project that we are looking to mirror. (Please have a PhD in Tokenomics)

    min $50 / hr
    min $50 / hr
    0 bids
    Simple Dogecoin Gambling 5 days left
    VERIFIED

    Simple gambling mini games for dogecoin

    $150 (Avg Bid)
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    Dear Developers, Please read the description before placing a bid. I am looking for a blockchain developer who can create a simple version of a game project that will be developed in full later. I need to create the simple version of the game with a very limited budget so please dont bid if you will ask for 1000s of dollars. The project will look like this page. ery simple 1 Page project [logi...

    $897 (Avg Bid)
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    Hello There, We are looking for some developer to develop a bitcoin client, with the feature to send fake transactions to the chain. All we need is for the transaction to be shown in the wallet and transferable, obviously we don't expect them to ever get confirmed! Required: - Amount field - Bitcoin address field.

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    I am currently looking to build a defi coin on the etherium network . What will bw the price?

    $1939 (Avg Bid)
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    We are looking for a developer who has in past integrated applications with Logistics companies such as bluedart, USPS, UPS and several other shipping companies. You need to provide us a mechanism to be able to track shipment if we have the AWB number from that specific carrier. More importantly, this may not be our shipment, and it may be of our customers, so we need a mechanism to get us authe...

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    * We will have to manually change the pictures in unelmacoin/share/pixmaps. * We will need change the checkpoints in unelmacoin/src/chainparams.cpp. * We will need to add a seed node and add it to src/[login to view URL] as well. * Currently all seeds are getting disabled.

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    Need help with the payment gateway for selling products from my Delphi application

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    Hello, I would like someone who is confident in cryptocurrencies I'm starting investing in ETH , and need someone who can be remunerative for me , if you can contact me

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    For this project you need to be an expert level C and Java programmer, blockchain developer in the NFT space (DeFi, Binance, Ethereum 2.0 etc.), technical aptitude and a minimum of two Android mobile phones to test and run the app which is the basis for this project, as it both creates art works and saves or sends encrypted messages as artistic images We’re preparing to launch (now in Beta)...

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    yieldfarms 5 days left

    Create one yieldfarms site. e.g. [login to view URL]

    $4000 (Avg Bid)
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    p2p bitcoin exchange website 5 days left
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    P2P Exchanges make Buyers find Sellers. Its like a Classified ads site, but only for bitcoins. These are individuals trading back and forth with other individuals. Essentially, the sellers are setting their own price and what types of payments they will accept. Many accept PayPal, Bank Transfers, Credit Cards and even cold, hard cash. All payments are handled OFF site. Users only have the option ...

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    Hello, We looking for to hire an person who chat and speack english, for write and prepare some announcement on social network in english language. You need to know crypto currency domaine and have an very good english. Your job will be to write good text for our announcement on social network. Thx you.

    $26 / hr (Avg Bid)
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    ALARANIWAOO!! we are looking for the token contract, we're looking at creating an ecosystem similar to Uranium. It's two tokens, an AMM, and a bridge from token A to token B. Also including the general yield-farming structure. We are also looking at adding vaults for auto-compounding features. The NFTs would be much later down the road. plz don't waste my time, if you know you ca...

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    Can you do IEEE projects on Blockchain using Smart Contract and Supply Chain?

    $5000 (Avg Bid)
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    smart Contract 4 days left

    Can you do IEEE projects on Blockchain using Smart Contract and Supply Chain?

    $5000 (Avg Bid)
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    I need a new website. I need you to design and build it.

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    Need to demonstrate an actual bitcoin miner software that can mine actual bitcoin. 1. User will specific their private key for payment. 2. Software will load nonce guesses from a csv file. 3. If nonce guess is correct, user should receive the actual bitcoin reward. Developer who can successfully complete and demonstrate this project will be offered future bitcoin projects for an actual large sca...

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    Blockchain Developing skills 4 days left
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    Hello, I am mechanical engineering student and I have entered the crypto world recently. I am looking for someone who can teach me blockchain developing and how to create a token and Dapp from A to Z : * Blockchain coin forking, Smart Contract for DApp * Cryptocurrency Exchange System, DeFi, * Wallet for web and mobile * FIX (Financial Information eXchange) Only patient professional with reason...

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    Bitcoin mining help 4 days left
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    I need help with someone to mine Bitcoin

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    Hello, We looking for an senior developer who know and work with smart contract on binance smart chain ( bcs ). We will create some smart contract and manage transactions. We can hire you on full time ( monday to friday ) and we can hire you right now. Thank you.

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    Cardano NFT project 4 days left
    VERIFIED

    We are developing an NFT series on Cardano. We are looking for an experienced dev who is passionate about Cardano and understands the current, pre-smart contract minting process. We have the concept and art finished, just looking a partner to help with the tech.

    $875 (Avg Bid)
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    We require a usable, trade-able and new Cryptocurrency coin created this will be from scratch so will to go back and forth to talk about the in and out requirements etc

    $280 (Avg Bid)
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    5 bids

    My project is to create a platform in order to exchange cryptocurrencies quickly, securely with any devises.

    $287 (Avg Bid)
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    3 bids

    I would like to find someone who has expertise in cryptocurrencies. Someone who is confident in coindbase and binance.

    $14 - $28
    $14 - $28
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    Trophy icon A Contest For Ideas. 8 days left

    **************READ BEFORE YOU BIDDDDDDDD!!!!!!!!!!!!!!!! IDEAS NOT DESIGN!!!!!!!!!!!! THIS IS NOT A DESIGN CONTEST!!!!!!!!!!!!!!!!!!! ITS A CONTEST FOR IDEAS!!!!!!!!!!!!!!!!!!!!!!!!!!!!******************************** GENERAL INFO: I am in the process of building a blockchain-based token. SCOPE OF THE PROJECT: I need one or multiple IDEAS for a crypto-token. My scope is very simple, I want to...

    $111 (Avg Bid)
    Guaranteed Sealed
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    2 entries
    Start a cryptocurrency 3 days left
    VERIFIED

    I want to start my own cryptocurrency using the same infrastructure as bitcoin. The only difference is that I want to be able to be able to set the length (difficulty) of the code the computers have to mine and be able to change it. So if its set to 100 characters its 100 length - but I should be able to change how long the length is aswell by an override which updates everyones. I also need my o...

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    Pancake frontend developer. 3 days left
    VERIFIED

    Our team is forking pancake. To speed up, we are in agreement with adding one more frontend developer. If you have some experience in pancake forking , feel free to apply. Thanks.

    $14 / hr (Avg Bid)
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    Hi, The goal here is that a working crypto trading bot is delivered that works on one of these exchanges: Bitfinex, FTX, Binance. The bot will work through the API of these exchanges. Every trade will be placed in a Telegram group. We are able to choose between strategies or we can choose multiple indicators (we need help with making this as profitable as possible). Every trade has a 'plan...

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    Full details will be given to the winning bidder but basically you will be given a document of 4000000 addresses and you will find a way to get the pubkey for each and have it formatted as: x= y=

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    Hello i want to start a mlm business in tron coin . For that i need a tron smart contract and a dapp website i want tron / eth or Binance Smart Chain, would be great if finance smart chain is possible!

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    my Bitcoin payment gateways to receive all payment directly to my electrum wallet and set up automatic withdrawals with pay to many options in bulk payment from my system to electrum when user request to exchange bitcoin!

    $20 (Avg Bid)
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    1 bids

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