# 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/a025f71112a5cb0744a4faea8a3f85c0d444a58e/packages/synapse-core/src/utils/schemas.ts#L23)