# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/ccd1546626324814f05a7401da066d4361eb8bda/packages/synapse-core/src/utils/schemas.ts#L31)