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Build a white label web app for bitcoin escrow

$3000-5000 USD

Zavřený
Zveřejněno před více než 6 roky

$3000-5000 USD

Zaplaceno při doručení
Admin setup would define components to brand their site, setup commission rates, salary, PGP keys, multisig keys, etc. At that point, the hope is that admin involvement could be minimal. Vendors would signup and either pay a bond or get bond waiver if they vend on other markets like ebay already. Their identity is validated solely based on PGP encryption. Once they complete their setup of global options/definitions, they would focus on managing listings, order queue and messages to establish good feedback/reputation on the site. Buyers would then signup and browse multiple categories of listings from all vendors who have listings posted. Purchases would be made of a single item where buyer defines qty, ship option + checks out. They input a single field of info at checkout which is an encrypted ship address. Under no circumstance should non-PGP-encrypted info be made in order to leverage crypto-security and avoid any fraud based on their user details similar to the fraud that exists on traditional CC-based marketplaces. The marketplace will run off a commission % and thus should be paid out to the admins bitcoin address for each completed order. An electrum MPK should allow each orders commission to be paid to a fresh btc address. Workflow of common order would look like this: - Buyer choose item which displays fiat price per qty range. - BTC payment amount is calculated. - A multisig escrow address is created using vendor and market msig sign keys + timelock release of 45 days. This is the escrow payment address where buyer must send funds. - Upon confirmation on blockchain, buyers sees order status change from NEW to PENDING. - Upon vendor SHIPPED status change, the buyer can tell item was shipped. - If vendor CANCELS status change, the buyer receives a refund to their REFUND BTC ADDRESS. This is a rare event. MSig will require 2 signatures to drive the refund payment tx. This must be as easy as possible. - Once buyer receives product they mark order as RECEIVED and this causes the market admins msig signing key to be used to sign the escrowed tx giving it 1 of the 2 signatures needed to send funds to vendor. - Once vendor sees 1 signature has been made, they will then sign the tx to add the 2nd signature causing it to be sent to their WITHDAW ADDRESS. - The order status is then changed to COMPLETE. - Timelock of 45 days would mean market admin signature is auto-applied after 45 days so vendor does not need to explicitly trust the market admin to rely on getting paid or having their funds freezed like paypal. - A dispute flag could be applied by buyer for non-receipt which would be the only deviation from this common workflow. The system is designed to provide transparent, standardized vendor guarantees and to promote the vendor/buyer to work it out themselves to avoid an admin mediation request. But this will inevitably happen from time-to-time. - Admin can mediate an order dispute and make a ruling that pays vendor and refunds buyer 0, 50%, 100% of the order amount. The bitcoin tx must then be constructed to payout those % to the two parties and then begin the signing process. - All mediation disputes data should be stored in user profiles to use in reputation profiles. i.e. how many disputes has user been party to and how many rulings did they win/lose/split? - The goal is to allow for a tracking # to automate any dispute mediation since there is really no other way for a mediator to make decisions that are standard and transparent. A dispute should allow for entry of a tracking # to prove a delivery was made. This should be setup to allow for automation of dispute decisions either in v1 or a future version 2.
IČ projektu: 15069822

O projektu

34 nabídky
Vzdálený projekt
Aktivní před 6 roky

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34 freelanceři nabízejí v průměru $5 394 USD za tuto práci
Avatar uživatele
I have gone through project description, but I would like to discuss to clear my understanding of requirements. Please PM me so we can discuss the requirement in more details Relevant Skills and Experience Top rated developer on freelancer.com for Web Development Proposed Milestones $4210 USD - aa
$4 210 USD v 30 dnech
5,0 (253 recenze)
8,9
8,9
Avatar uživatele
I can build a White Label Web App for Bitcoin Escrow as my team has experience in Blockchain and Bitcoin related projects. Relevant Skills and Experience As mentioned, we have worked on the projects related to cryptocurrency, so I can handle your project professionally without any concern for security issues when the project launches. Proposed Milestones $10000 USD - Milestone 1 $10000 USD - Milestone 2 $10000 USD - Milestone 3 Are you available to discuss the project now? Cheers, Zoran
$30 000 USD v 90 dnech
4,9 (48 recenze)
8,6
8,6
Avatar uživatele
Let's go together for your project. How are you today? I am a full stack developer who has over 5 years experience in app development. I am here to help you get your idea implemented and working with my team. I will always deliver you ERROR-FREE and OUTSTANDING quality project in a timely fashion. Here you can check my profile on freelancer. https://www.freelancer.com/u/EliteSolution8 Contact to me today to discuss more! I look forward to hearing from you. Kind regards, CaiHong.
$4 444 USD v 30 dnech
5,0 (29 recenze)
8,2
8,2
Avatar uživatele
Hi Thank's for providing us an opportunity to bid on your project. We read you project description and understand clearly so we are highly interested to work for you Relevant Skills and Experience We specialise in PHP, codeigniter, Android, WordPress, Joomla, Megento,, HTML5, PSD to HTML, Ajax, JQuery, Css, JavaScript, Web Design, Graphic, Bootstrap, MySQL, Paypal, eCommerce Website. Proposed Milestones $3000 USD - default milestone
$3 000 USD v 30 dnech
4,6 (174 recenze)
7,7
7,7
Avatar uživatele
Hi we are web programmer and expert in php and database handling using mysql so lets start discussion for this web portal and make it Relevant Skills and Experience Bitcoin, MySQL, PHP Proposed Milestones $4444 USD - web app
$4 444 USD v 30 dnech
4,9 (86 recenze)
7,0
7,0
Avatar uživatele
Hi sir, My name is Farid, I will complete your project within 10 weeks, LIFETIME error free guarantee and provide 365 days (ONE YEAR) support... I have right skills (Bitcoin, MySQL, PHP) to execute your esteemed project. Relevant Skills and Experience Bitcoin, MySQL, PHP
$5 420 USD v 365 dnech
5,0 (115 recenze)
6,7
6,7
Avatar uživatele
Hello Sir/Madam, Greetings of the day! I am glad to inform you that we have 46+ Technical resources team having said that they have 5+ years of experience in development and designing . 32 of them are working on PHP and 14 of them are Mobile apps developers. Having said that we have built 1679+ websites and 67+ Mobile applications. Please message me to discuss about your requirement in details. I would like to share our technical portfolio. I look forward to working on this project as we can assign the team to handle this project. Regards,
$4 444 USD v 30 dnech
4,8 (16 recenze)
5,9
5,9
Avatar uživatele
Hi, I have huge knowledge and experience of crypto currencies. I have been working with Bitcoin since from 2011. I even registered an excellent domain for a crypto currency trading website I,e e-coin.trade. Apart from that, I have 8+ years of experience of web development, designing, web security and I run my own web hosting company too. I know exactly how blockchain, bitpay, and crypto currencies API work. With my experience, and extensive knowledge in the field, I believe together we can come up with an excellent trading platform for cryptocurrencies. Please initiate a chat with me to discuss it further. I look forward to hear from you. Relevant Skills and Experience crypto currencies, bitcoin, mysql, php Proposed Milestones $5000 USD - Milestone
$5 000 USD v 30 dnech
5,0 (25 recenze)
5,7
5,7
Avatar uživatele
Hi, I am an experienced programmer and I'm sure I can complete your project asap. Please contact me and tell about your project details. I promise a high quality and punctual work. Thanks. ProjectName:Build a white label web app for bitcoin escrow Relevant Skills: Bitcoin, MySQL, PHP,
$4 444 USD v 27 dnech
4,3 (15 recenze)
4,8
4,8
Avatar uživatele
5 Reasons why you should hire me for your custom website and Application Development. 1. Available 24/7 upon your request 2. Delivery on-time with 100% satisfaction 3. Always think beyond boundaries and. provide user friendly solution 4. Provide excellence with commitment 5. Most important, Free technical support for lifetime. Thank you
$4 950 USD v 6 dnech
4,2 (19 recenze)
4,8
4,8

O klientovi

Pochází z UNITED STATES
United States
0,0
0
Členem od srp 31, 2017

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