# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:30](https://github.com/FilOzone/synapse-sdk/blob/a9265d3ecd65212b9224e3947f3ca7b5016f3bec/packages/synapse-core/src/utils/schemas.ts#L30)