# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:22](https://github.com/FilOzone/synapse-sdk/blob/a94b19cd713f8c0dd80338d209c8787235e480f9/packages/synapse-core/src/utils/schemas.ts#L22)