# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/bcb6af16ba9b8406998ce3d173cf6b9e2998b815/packages/synapse-core/src/utils/schemas.ts#L31)