Quorum Oracle Source - CoverFi

The quorum_oracle_source contract is a source contract compatible with the oracle_adapter source interface. It accepts submissions from three configured publishers and stores a source price when at least two publishers agree within the configured deviation threshold.

Responsibilities

Store the configured admin and three publisher addresses.
Reject duplicate publisher addresses during initialization.
Require publisher authorization for submissions.
Reject non-positive prices and future timestamps.
Reject duplicate submissions from the same publisher for the same asset and timestamp.
Store the midpoint of the closest agreeing publisher pair when quorum is reached.
Expose lastprice and price methods expected by the oracle adapter source interface.

Main methods

initialize(admin, publisher1, publisher2, publisher3, max_age_seconds, max_deviation_bps)
submit(publisher, asset, price, timestamp)
lastprice(caller, asset)
price(caller, asset, timestamp)
get_config()
propose_admin(admin, pending)
accept_admin(pending)

Flow

Production note

This source improves over a single publisher, but mainnet policy should still document source selection, publisher custody, alerting, emergency pause, and replacement procedures.