# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:22](https://github.com/FilOzone/synapse-sdk/blob/b94cc72ba5ebadd8ad7b90e298136264b78bd246/packages/synapse-core/src/utils/schemas.ts#L22)