# fallbackRandU256

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

Defined in: [packages/synapse-core/src/utils/rand.ts:3](https://github.com/FilOzone/synapse-sdk/blob/1a1d16a73ad5da89c80d6276a9c9ad8af2ec33fd/packages/synapse-core/src/utils/rand.ts#L3)

## Returns

`bigint`