# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:30](https://github.com/FilOzone/synapse-sdk/blob/ce46a7c7064e0127711218b664e222c63ce5d42e/packages/synapse-core/src/utils/schemas.ts#L30)