# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/f17b40269f20ce1fa3544d336d07aba30788c569/packages/synapse-core/src/utils/schemas.ts#L31)