# OperatingSystemArtifact

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

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

| Field | Required at this level | Type | Description and constraints |
| --- | --- | --- | --- |
| <code>organizationId</code> | Yes | <code>string</code> | Min length: <code>3</code>; Max length: <code>160</code> |
| <code>contentHash</code> | Yes | [Hash](/api-reference/schemas/hash/) | — |
| <code>recordType</code> | Yes | <code>string</code> | — |
| <code>recordId</code> | Yes | <code>string</code> | Min length: <code>3</code>; Max length: <code>160</code> |
| <code>recordVersion</code> | Yes | <code>integer</code> | Minimum: <code>1</code> |
| <code>objectKey</code> | Yes | <code>string</code> | — |
| <code>mediaType</code> | Yes | <code>string</code> | — |
| <code>byteSize</code> | Yes | [AtomicAmount](/api-reference/schemas/atomic-amount/) | — |
| <code>sourceHashes</code> | Yes | Array of [Hash](/api-reference/schemas/hash/) | — |
| <code>retentionUntil</code> | No | <code>string</code> | Format: <code>date-time</code> |
| <code>createdAt</code> | Yes | <code>string</code> | Format: <code>date-time</code> |
| <code>createdBy</code> | Yes | <code>string</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/OperatingSystemArtifact</code> in the [OpenAPI contract](/openapi/liquidity-operating-system-v2.openapi.json).