# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/1ec76efb13bce0550ca5861a4eb7c441d3fbec9d/packages/synapse-core/src/utils/schemas.ts#L31)