Delphi by Hashelot is a DoaaS (Distributed oracle as a service) smart contract written in Solidity and currently in beta testing on the Ropsten network, that lets you become and advertise yourself as an Oracle. No token needed.
Each question or answer is limited to 32 characters1, every Oracle has a minimum reward that inquirers need to grant in order to ask them something.
Delphi gets 0.1% of each reward.
Code and deployment specs
Solidity code: Hashelot Delphi (GitHub).
Transaction hash: 0x275fbd…6ee4cf (Etherscan).
Questions and answers are stored on the blockchain as bytes32. ↩︎