# zPieceCid

> `const` **zPieceCid**: `ZodCustom`\<[`PieceCID`](/reference/filoz/synapse-core/piece/classes/piececid/), [`PieceCID`](/reference/filoz/synapse-core/piece/classes/piececid/)\>

Defined in: [packages/synapse-core/src/utils/schemas.ts:23](https://github.com/FilOzone/synapse-sdk/blob/ccd1546626324814f05a7401da066d4361eb8bda/packages/synapse-core/src/utils/schemas.ts#L23)