# SavedProjectObservation

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

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

| Field | Required at this level | Type | Description and constraints |
| --- | --- | --- | --- |
| <code>sequence</code> | Yes | <code>string</code> | Exact immutable observation sequence; do not coerce to a JavaScript number. Pattern: <code>^&#91;1-9&#93;&#91;0-9&#93;{0,17}$</code> |
| <code>recordedAt</code> | Yes | <code>string</code> | Format: <code>date-time</code> |
| <code>resourceVersion</code> | Yes | <code>string</code> | Pattern: <code>^0x&#91;0-9a-f&#93;{64}$</code> |
| <code>analysis</code> | Yes | [PublicProjectAnalysis](/api-reference/schemas/public-project-analysis/) | — |

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/SavedProjectObservation</code> in the [OpenAPI contract](/openapi/liquidity-operating-system-v2.openapi.json).