Articles
Collections
Write Article
Create Collection
Import from medium
Loading...
Sign in
POSTED 17 Feb 2019 10:28

Delfi: An On-Chain Oracle You Can Reason About

ethdenver-2019-submission
bounty-shapeshift-2019
bounty-bzx-2019
OWNER
0
0x1d9e...aaab

Project Name

Delfi

Project Tagline/Description (140 Characters Max. Will be used on table card for judging)

A simple on-chain oracle you can reason about.

Team Members. First and Last Names

Nicholas Harvey-Cheetham, Nicolas Burtey, Bass Bauman

Status.im ID for Each Team Member (we will use this to contact you and your team)

@nicholashc https://get.status.im/user/0x044231718696088cefcef659d1fd6f8ce4969f2354e48cdc67b28767e2328786ea44769c0db2d8b273202888ab37fb4c8ce217688c42bb72fdc59e77b821f50d93

Detailed Project Description (no more than 3-4 sentences)

Delfi is a simple, on-chain, on-demand price oracle you can reason about. It provides a liquidity-weighted index of ETH/DAI spot prices from the highest volume decentralized exchanges. This price is paired with the value required to manipulate the rate by 5% or more, providing a quantifiable threshold of economic activity the price can safely support.

Describe your tech stack (e.g., protocols, languages, API’s, etc.)

Smart contracts written in Solidity, tested locally with Truffle, Ganache CLI, and Remix, and deployed to mainnet (yolo). Web interface written with web3.js and beautiful unstyled html. Vanity contract addresses generated with web3.js and node.js. Backtesting and price analysis done with Python and web3.py, Panda and Jupyter notebook, and Matplotlib for graphs. Data gathered from ShapeShift's CoinCap API, Poloniex's API, a local Parity node, Infura, and a not-quite synced archive node running on AWS.

Track for which you’re submitting (Open or Impact)

Open

All Bounties Completed/Incorporated

  • ShapeShift - incorporating the CoinCap API endpoint
  • bZx - developing a decentralized price oracle that could be incorporated into the bZx protocol

A link to all your source code on a public repo (i.e. Github)

Outline
  • Project Name

  • Project Tagline/Description (140 Characters Max. Will be used on table card for judging)

  • Team Members. First and Last Names

  • Status.im ID for Each Team Member (we will use this to contact you and your team)

  • Detailed Project Description (no more than 3-4 sentences)

  • Describe your tech stack (e.g., protocols, languages, API’s, etc.)

  • Track for which you’re submitting (Open or Impact)

  • All Bounties Completed/Incorporated

  • A link to all your source code on a public repo (i.e. Github)