# zPieceCidString

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

Defined in: [packages/synapse-core/src/utils/schemas.ts:31](https://github.com/FilOzone/synapse-sdk/blob/5e9df029417d95928e523b01a29bf523e42db418/packages/synapse-core/src/utils/schemas.ts#L31)