MIP10c9-SP15 Whitelist Gnosis Maker Adapter contract on ETH/USD Oracle

MIP10c9-SP15: Subproposal to whitelist Gnosis Maker Adapter contract for ETH/USD Oracle Access


MIP10c9-SP#: 15
Author(s): Cristian Ramirez
Contributors: Cristian Ramirez
Status: Formal Submission
Date Proposed: 2020-11-27
Date Ratified: <yyyy-mm-dd>



The Gnosis Maker DAO Adapter smart contract allows users to create prediction markets for token prices using Gnosis’ Conditional Tokens framework. Users create a market by specifying an oracle, a target value, resolution time and variation range. Market payouts can be binary or scalar. Once the market is created users can create short or long positions using the Gnosis Conditional Tokens contract. When the resolution time is reached the market creator calls a function that queries the Maker oracle and resolves the market. Users may then redeem their positions.

Oracle Name



Cristian Perez Ramirez- [email protected]


maker adapter - 0xD5885fbCb9a8a8244746010a3BC6F1C6e0269777 - OSM


For each customer address to be whitelisted:

  • Is the contract source code verified on etherscan? yes
  • Is the Oracle data used in a permissioned manner that would prevent parasitic behavior? yes
  • Is Oracle data written to storage? no
  • If Oracle data is stored, is it stored in a private variable? n/a
  • If Oracle data is stored, is the value accessible on-chain exclusively by the protocol? n/a


In accordance with the Responsible Oracle Migration Proposal, fees are waived for the first year and determined by MKR Governance after that.


The Oracle Domain Team has reviewed the deployed contracts and verified that it doesn’t leak Oracle data. The Oracle Domain will create a Polling Vote for Maker Governance to ratify the whitelist application.

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