# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/06685873239b7c2890d5a1abadca5b8b85b62501/packages/synapse-core/src/utils/schemas.ts#L31)