SIP-357: Chainlink Node With Staleness Check
| Author | |
|---|---|
| Status | Approved |
| Type | Governance |
| Network | Ethereum & Optimism |
| Implementor | TBD |
| Release | TBD |
| Proposal | Loading status... |
| Created | 2023-09-29 |
Simple Summary
This sip proposes to incorporate a staleness check on the chainlink node used for SNX staking in the V3 system.
Abstract
The chainlink node would have a staleness check based on the heartbeat of the respective network. The configuration on optimism would be 3,600 seconds (1 hour) and that of ethereum would be 129,600 seconds (36 hours).
Staleness is measured by fetching the timestamp of the latest chainlink price push and comparing it to the timestamp of the current block. If the difference exceeds the configured maximum staleness parameter, the oracle would revert when called, otherwise it would return the oracle price and timestamp.
Motivation
Currently the configured chainlink node does not incorporate any staleness check. However, it is considered best practice that prices are checked for staleness before being consumed (e.g. staking, unstaking and liquidation). Hence, in case the oracle is stale, all activity that touches the oracle would revert.
Copyright
Copyright and related rights waived via CC0.