# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/e853a1d93da8c983371ffce4424cdb8996cc06ff/packages/synapse-core/src/utils/schemas.ts#L31)