# PieceStatus

Defined in: [packages/synapse-sdk/src/types.ts:848](https://github.com/FilOzone/synapse-sdk/blob/2e357180d354970e2a091ff7ef0f3021c8357d4f/packages/synapse-sdk/src/types.ts#L848)

Status information for a piece stored on a provider
Note: Proofs are submitted for entire data sets, not individual pieces.
The timing information reflects the data set's status.

## Properties

### dataSetLastProven

> **dataSetLastProven**: [`Date`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date) \| `null`

Defined in: [packages/synapse-sdk/src/types.ts:850](https://github.com/FilOzone/synapse-sdk/blob/2e357180d354970e2a091ff7ef0f3021c8357d4f/packages/synapse-sdk/src/types.ts#L850)

When the data set containing this piece was last proven on-chain (null if never proven or not yet due)

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### dataSetNextProofDue

> **dataSetNextProofDue**: [`Date`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date) \| `null`

Defined in: [packages/synapse-sdk/src/types.ts:852](https://github.com/FilOzone/synapse-sdk/blob/2e357180d354970e2a091ff7ef0f3021c8357d4f/packages/synapse-sdk/src/types.ts#L852)

When the next proof is due for the data set containing this piece (end of challenge window)

***

### hoursUntilChallengeWindow?

> `optional` **hoursUntilChallengeWindow?**: `number`

Defined in: [packages/synapse-sdk/src/types.ts:860](https://github.com/FilOzone/synapse-sdk/blob/2e357180d354970e2a091ff7ef0f3021c8357d4f/packages/synapse-sdk/src/types.ts#L860)

Time until the data set enters the challenge window (in hours)

***

### inChallengeWindow?

> `optional` **inChallengeWindow?**: `boolean`

Defined in: [packages/synapse-sdk/src/types.ts:858](https://github.com/FilOzone/synapse-sdk/blob/2e357180d354970e2a091ff7ef0f3021c8357d4f/packages/synapse-sdk/src/types.ts#L858)

Whether the data set is currently in a challenge window

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### isProofOverdue?

> `optional` **isProofOverdue?**: `boolean`

Defined in: [packages/synapse-sdk/src/types.ts:862](https://github.com/FilOzone/synapse-sdk/blob/2e357180d354970e2a091ff7ef0f3021c8357d4f/packages/synapse-sdk/src/types.ts#L862)

Whether the proof is overdue (past the challenge window without being submitted)

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### pieceId?

> `optional` **pieceId?**: `bigint`

Defined in: [packages/synapse-sdk/src/types.ts:856](https://github.com/FilOzone/synapse-sdk/blob/2e357180d354970e2a091ff7ef0f3021c8357d4f/packages/synapse-sdk/src/types.ts#L856)

The piece ID if the piece is in the data set

***

### retrievalUrl

> **retrievalUrl**: `string` \| `null`

Defined in: [packages/synapse-sdk/src/types.ts:854](https://github.com/FilOzone/synapse-sdk/blob/2e357180d354970e2a091ff7ef0f3021c8357d4f/packages/synapse-sdk/src/types.ts#L854)

URL where the piece can be retrieved (null if not available)