# VirtualMaster.mineSalt

Searches a bounded range of salts for the first value that satisfies TIP-1022 PoW.

[TIP-1022](https://tips.sh/1022)

This is intentionally a small, deterministic primitive. It does not coordinate workers or async execution. Callers that need large searches can shard ranges externally.

Master addresses must satisfy TIP-1022 registration constraints: they cannot be the zero address, another virtual address, or a TIP-20 token address.

:::warning
It is strongly recommended to use [`VirtualMaster.mineSaltAsync`](/tempo/reference/VirtualMaster/mineSaltAsync) instead of this function. `mineSaltAsync` uses WASM-accelerated keccak256 with parallel workers and is a lot faster than the pure JS implementation used here.
:::

## Imports

:::code-group
```ts [Named]
import { VirtualMaster } from 'ox/tempo'
```

```ts [Entrypoint]
import * as VirtualMaster from 'ox/tempo/VirtualMaster'
```
:::

## Examples

```ts twoslash
import { Address } from 'ox'
import { VirtualMaster } from 'ox/tempo'

const result = VirtualMaster.mineSalt({
  address: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266'
})

result?.salt
// @log: '0x00000000000000000000000000000000000000000000000000000000abf52baf'
```

## Definition

```ts
function mineSalt(
  value: mineSalt.Value,
): mineSalt.ReturnType | undefined
```

**Source:** [src/tempo/VirtualMaster.ts](https://github.com/wevm/ox/blob/main/src/tempo/VirtualMaster.ts#L733)

## Parameters

### value

* **Type:** `mineSalt.Value`

Search range parameters.

#### value.address

* **Type:** `abitype_Address`

Master address.

#### value.count

* **Type:** `number`
* **Optional**

Number of consecutive salts to try.

#### value.start

* **Type:** `Salt`
* **Optional**

Starting salt value.

## Return Type

The first matching salt in the range, if any.

`mineSalt.ReturnType | undefined`