# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:22](https://github.com/FilOzone/synapse-sdk/blob/c7ab7b41199b5dec67232ebe6837e8fabc1c7c42/packages/synapse-core/src/utils/schemas.ts#L22)