# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/b36c8f99c6e2a9d4d60368a773e5052e196cb6e5/packages/synapse-core/src/utils/schemas.ts#L31)