# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/f4c88395d3054d97b487127f4b8e5445b062e875/packages/synapse-core/src/utils/schemas.ts#L31)