# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/383406b972e6cd42ad69595631f715ff6e996b52/packages/synapse-core/src/utils/schemas.ts#L31)