# fallbackRandU256

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

Defined in: [packages/synapse-core/src/utils/rand.ts:3](https://github.com/FilOzone/synapse-sdk/blob/2e357180d354970e2a091ff7ef0f3021c8357d4f/packages/synapse-core/src/utils/rand.ts#L3)

## Returns

`bigint`