# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/69355bd6e369f83f8584f621913e16ec36de8193/packages/synapse-core/src/utils/schemas.ts#L31)