# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:22](https://github.com/FilOzone/synapse-sdk/blob/06f0d7c2c9f33d60b08808ef932ce5f13addb0ef/packages/synapse-core/src/utils/schemas.ts#L22)