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brk/modules/brk-client/docs/functions/addressPayloadHashPrefix.md
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[**brk-client**](../README.md)
***
[brk-client](../globals.md) / addressPayloadHashPrefix
# Function: addressPayloadHashPrefix()
> **addressPayloadHashPrefix**(`payload`, `nibbles`): `string`
Defined in: [Developer/brk/modules/brk-client/index.js:2307](https://github.com/bitcoinresearchkit/brk/blob/cc5b6da341b469859cb457c9c0c93a547eb6ee00/modules/brk-client/index.js#L2307)
Compute the RapidHash v3 hash-prefix used by `/api/address/hash-prefix/{addr_type}/{prefix}`.
## Parameters
### payload
`number`[] \| `ArrayBuffer` \| `Uint8Array`\<`ArrayBufferLike`\> \| `ArrayBufferView`\<`ArrayBufferLike`\>
Raw address payload bytes
### nibbles
`number`
Prefix length from 1 to 16 hex nibbles
## Returns
`string`