# UnlockImpactSourceObservation

[All API schemas](/api-reference/schemas/)

<code>object</code> — Additional properties rejected

| Field | Required at this level | Type | Description and constraints |
| --- | --- | --- | --- |
| <code>schemaVersion</code> | Yes | Constant <code>unlock-impact-source-observation-v1</code> | — |
| <code>observationId</code> | Yes | <code>string</code> | — |
| <code>chainId</code> | Yes | <code>integer</code> | Minimum: <code>1</code> |
| <code>venueId</code> | Yes | <code>string</code> | — |
| <code>assetMappingId</code> | Yes | <code>string</code> | — |
| <code>tokenPriceX18</code> | Yes | [PositiveAtomicAmount](/api-reference/schemas/positive-atomic-amount/) | — |
| <code>tokenDecimals</code> | Yes | <code>integer</code> | Minimum: <code>0</code>; Maximum: <code>36</code> |
| <code>quoteDecimals</code> | Yes | <code>integer</code> | Minimum: <code>0</code>; Maximum: <code>36</code> |
| <code>currentUsableDepthQuote</code> | Yes | [PositiveAtomicAmount](/api-reference/schemas/positive-atomic-amount/) | — |
| <code>currentStableReserveQuote</code> | Yes | [AtomicAmount](/api-reference/schemas/atomic-amount/) | — |
| <code>observedAt</code> | Yes | <code>string</code> | Format: <code>date-time</code> |
| <code>providerId</code> | Yes | <code>string</code> | — |
| <code>providerResourceVersion</code> | Yes | [Hash](/api-reference/schemas/hash/) | — |
| <code>providerAttestationHash</code> | Yes | [Hash](/api-reference/schemas/hash/) | — |
| <code>payloadHash</code> | Yes | [Hash](/api-reference/schemas/hash/) | — |
| <code>signature</code> | Yes | <code>string</code> | Content encoding: <code>base64</code> |

Nested required fields apply when their parent object or matching union branch is present. Named types link to their complete schema.

Exact definition: <code>#/components/schemas/UnlockImpactSourceObservation</code> in the [OpenAPI contract](/openapi/liquidity-operating-system-v2.openapi.json).