# fallbackRandU256

> **fallbackRandU256**(): `bigint`

Defined in: [packages/synapse-core/src/utils/rand.ts:3](https://github.com/FilOzone/synapse-sdk/blob/ac439ced73387be0f1e7ed7e635dce4bdba76399/packages/synapse-core/src/utils/rand.ts#L3)

## Returns

`bigint`