ERC-8330 Subject-Linked NAV Snapshot Oracle

ReviewERCcreated 2026-07-05requires ERC-165

Defines subject-linked NAV streams with provider attribution, corrections, invalidation, staleness, and aggregation

Authors: Chris Turner, David Hay (@david-hay), Reagan Simpson (@krumg111), Collins Musyimi (@Musyimi97)

ERC-165 interface ids

Computed here as the XOR of the selectors each interface defines.

INAVSnapshotOracle	`0x6dd5275b`
INAVAggregation	`0x9835ada2`

`0xb39dcaa0`	`aggregatedNAV(bytes32,bytes32)`	view
`0xcdfaf975`	`currentSnapshotIndex(bytes32,bytes32,uint256)`	view
`0x474920a0`	`deviationThreshold(bytes32,bytes32)`	view
`0xb30a6ebf`	`getSnapshot(bytes32,bytes32,uint256)`	view
`0xe798ab25`	`heartbeat(bytes32,bytes32)`	view
`0x1e99ab55`	`invalidateSnapshot(bytes32,bytes32,uint256,bytes32)`
`0x3a900c95`	`isSnapshotCurrent(bytes32,bytes32,uint256)`	view
`0xca79c9f5`	`isSnapshotInvalidated(bytes32,bytes32,uint256)`	view
`0x7fbc65be`	`latestAggregationTimestamp(bytes32,bytes32)`	view
`0xdc6b17d3`	`latestNAV(bytes32,bytes32)`	view
`0xd8c7e1cd`	`latestNAVByProvider(bytes32,bytes32,address)`	view
`0x2b4a9247`	`latestNAVStatus(bytes32,bytes32)`	view
`0x66f1c4ee`	`maxValuationAge(bytes32,bytes32)`	view
`0xf3ee3b2f`	`providerSnapshotAt(bytes32,bytes32,address,uint256)`	view
`0x15443fd4`	`providerSnapshotCount(bytes32,bytes32,address)`	view
`0x42a5e9ef`	`providerSubmissionAt(bytes32,bytes32,uint256)`	view
`0xfa698ee6`	`providerSubmissionCount(bytes32,bytes32)`	view
`0x001ffb8d`	`publishNAV(bytes32,bytes32,bytes32,int256,uint8,uint64,bytes32,string,uint256)`
`0xcf0e9683`	`quorum(bytes32,bytes32)`	view
`0x649fd396`	`setAggregationConfig(bytes32,bytes32,uint256,uint256)`
`0xea527742`	`setNAVBasis(bytes32,bytes32,bytes32)`
`0xb475f53b`	`setStalenessConfig(bytes32,bytes32,uint64,uint64)`
`0x5ca5c864`	`snapshotCount(bytes32,bytes32)`	view
`0xb7ed605d`	`streamNAVBasis(bytes32,bytes32)`	view

Topic0 is the keccak256 hash of the signature, which is what a log filter matches on.

`0xd3daa09ea27a8df8d428ccd9167a2a26eba8bfb9c97899976cd6fa92e991afe0`	`NAVPublished(bytes32,bytes32,address,uint256,int256,uint8,bytes32,uint64,bytes32,uint256)`
`0xe7b01340d52a7ed30662bbb2894acab76169cb0b7dae143adb61f24bd793b4be`	`StalenessConfigUpdated(bytes32,bytes32,uint64,uint64)`
`0xed6f2bb89efe4a91d76ffeb9d5f3a7ea807d4549ab4ed4b9e7875c27d84c8cc4`	`NAVBasisConfigured(bytes32,bytes32,bytes32)`
`0x5387f5c49557fa4b0414467752bcf0348989790e4477ff7990f4c2b00c62d111`	`NAVSnapshotInvalidated(bytes32,bytes32,address,uint256,address,bytes32)`
`0x044397d5271f36b2d252d606162f05251f0fed8e307e6bcb072cc4accddb89a2`	`NAVDeviationDetected(bytes32,bytes32,uint64,int256,int256,uint256)`
`0xa0460ca4c86786744389e49738602c0b89a91de22673d6e476999480110420c9`	`AggregationConfigUpdated(bytes32,bytes32,uint256,uint256)`