# zPieceCidString

> `const` **zPieceCidString**: `ZodCustom`\<`string`, `string`\>

Defined in: [packages/synapse-core/src/utils/schemas.ts:22](https://github.com/FilOzone/synapse-sdk/blob/e084dd50a183619d50e08807fbe28bb727a64077/packages/synapse-core/src/utils/schemas.ts#L22)