# MarketQualityCohortSourceBinding

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

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

| Field | Required at this level | Type | Description and constraints |
| --- | --- | --- | --- |
| <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>cohortDefinitionId</code> | Yes | <code>string</code> | — |
| <code>cohortDefinitionHash</code> | Yes | [Hash](/api-reference/schemas/hash/) | — |
| <code>observedAt</code> | Yes | <code>string</code> | Format: <code>date-time</code> |
| <code>issuers</code> | Yes | Array of <code>object</code> | Min items: <code>10</code>; Max items: <code>10000</code> |
| <code>issuers&#91;&#93;.issuerCommitmentHash</code> | Yes | [Hash](/api-reference/schemas/hash/) | — |
| <code>issuers&#91;&#93;.score</code> | Yes | <code>integer</code> | Minimum: <code>0</code>; Maximum: <code>100</code> |
| <code>issuers&#91;&#93;.eligibilityEvidenceHash</code> | Yes | [Hash](/api-reference/schemas/hash/) | — |
| <code>signature</code> | Yes | <code>string</code> | Content encoding: <code>base64</code> |
| <code>evidenceHash</code> | Yes | [Hash](/api-reference/schemas/hash/) | — |

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