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Ethereum Oracle development

We are looking to develop an Ethereum Oracle which will act as a backup data-feed for our Ethereum (Solidity) smart contracts, in the event of Oraclize network outages or other issues.

The expectation would be for the oracle to behave in a similar fashion to Oraclize, so it is important that you have experience with oraclize and solidity. Any experience with Chainlink and/or TownCrier would also be advantageous.

We expect the oracle to have similar functionality to oraclize (see: [login to view URL]) in terms of scheduled queries, unique query ID's and ideally authenticity proofs.

Навыки: Биткойн, Blockchain, Ethereum, Oracle

О клиенте:
( 89 отзыв(-а, -ов) ) Rainham, United Kingdom

ID проекта: #17125111

13 фрилансеров(-а) готовы выполнить эту работу в среднем за £1448

mingxiao2008

Hello, sir. I have finished 10+ cryptocurrency project. Please check my portfolio. I have deep skill with cryptocurrency. My skill is followings. - Bitcoin and Lightcoin fork (daemon, mining, wallet, explorer). - Больше

£1250 GBP за 20 дней(-я)
(26 отзывов(-а))
7.9
darshring

Nice Project! I have more than 5 years experience in Blockchain & Cryptocurrency and I built and forked over 20 coins . [login to view URL] [login to view URL] [login to view URL] [login to view URL] http: Больше

£1323 GBP за 20 дней(-я)
(3 отзывов(-а))
6.4
ShantOM

We have just launched ETH Fork with 5 Billion Coins along with blockchain, Wallet(Window, Linux, Mac) supportive POS/POW, exchange listing. As well as we are expert with Waves blockchain solution... SwissCoinm & Uni Больше

£2500 GBP за 30 дней(-я)
(8 отзывов(-а))
6.1
mxicoders

Dear Sir, Greeting from my side, Please accept my proposal for the job of Ethereum Oracle development I would like to apply for this job, and we will make it as per your requirement, as described in your Job detai Больше

£3000 GBP за 41 дней(-я)
(2 отзывов(-а))
5.1
ZealousWang

Hi, there. I read your proposal and I like long term relationship. I have worked on Solaris coin, korecoin, hempcoin. You can visit [login to view URL], [login to view URL], [login to view URL] ... Also worked on ICO site building, ( Больше

£1250 GBP за 20 дней(-я)
(2 отзывов(-а))
5.0
£1250 GBP за 20 дней(-я)
(1 отзыв)
4.2
shinemonkey212

4 years experience in Blockchain & Cryptocurrency technology. Forking experience in Bitcoin, Ethereum, Dash, Ripple, PIVX, etc.. == Developed Coins: [login to view URL] [login to view URL] [login to view URL] http Больше

£1250 GBP за 20 дней(-я)
(5 отзывов(-а))
3.9
super2lao

Dear Employer, How are you? I have 6+ years experience in Blockchain and Cryptocurrency development. As a senior software developer, I'm suer that I will provide you 100% guaranteed product. I can provide: - Multi Больше

£1250 GBP за 20 дней(-я)
(1 отзыв)
3.5
bandiachorwadi

hi thank for your project I have more than 4+ years of experienced in crypto currencies and i m doing trading in most popular exchange and trading site like poloniex, yobit, livecoin, binance etc. I have must good exp Больше

£1000 GBP за 8 дней(-я)
(2 отзывов(-а))
3.6
Genya127

Dear sir, This letter is to express my interest in your job posting for an experienced, detail-oriented, blockchain developer. I am very confident that I will be a great addition to your organization. Building state Больше

£1250 GBP за 20 дней(-я)
(2 отзывов(-а))
0.8
xiqian88

Hi, there. I read your proposal and that is a good job for me I have done similar jobs before and you can check them my reference projects URLs are : https://www.freelancer.com/projects/php/Need-Frontend-Backend Больше

£1000 GBP за 15 дней(-я)
(0 отзывов(-а))
1.4
£1250 GBP за 20 дней(-я)
(0 отзывов(-а))
0.0
AzzkaNoor

Your project's posting has caught my attention as this lies exactly in my domain of expertise. To ask a few questions & to gather all the requirements for this project, i request you to message me. Expertise and skil Больше

£1250 GBP за 20 дней(-я)
(0 отзывов(-а))
0.0