---
name: "bitcoin-util"
section: "1"
platform: "linux"
package: "bitcoin-tx"
version: "32.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/bitcoin-util"
---

# bitcoin-util(1)

manual page for bitcoin-util v32.1.0

## NAME

bitcoin-util - manual page for bitcoin-util v32.1.0

## SYNOPSIS

**bitcoin-util** \[*options*\] \[*command*\]\
 **bitcoin-util** \[*options*\] *grind \<hex-block-header\>*

## DESCRIPTION

Bitcoin Core bitcoin-util utility version v32.1.0

The bitcoin-util tool provides bitcoin related functionality that does not rely on the ability to access a running node. Available \[commands\] are listed below.

## OPTIONS

**-help**

-

  Print this help message and exit (also **-h** or -?)

**-version**

-

  Print version and exit

Debugging/Testing options:

Chain selection options:

**-chain=**\<chain\>

-

  Use the chain \<chain\> (default: main). Allowed values: main, test, testnet4, signet, regtest

**-signet**

-

  Use the signet chain. Equivalent to **-chain**=*signet*. Note that the network is defined by the **-signetchallenge** parameter

**-signetchallenge**

-

  Blocks must satisfy the given script to be considered valid (only for signet networks; defaults to the global default signet test network challenge)

**-signetseednode**

-

  Specify a seed node for the signet network, in the hostname\[:port\] format, e.g. sig.net:1234 (may be used multiple times to specify multiple seed nodes; defaults to the global default signet test network seed node(s))

**-testnet**

-

  Use the testnet3 chain. Equivalent to **-chain**=*test*. Support for testnet3 is deprecated and will be removed in an upcoming release. Consider moving to testnet4 now by using **-testnet4**.

**-testnet4**

-

  Use the testnet4 chain. Equivalent to **-chain**=*testnet4*.

Commands:

-

  getchainparams

-

  Get hardcoded parameters for the selected chain

-

  grind

-

  Perform proof of work on hex header string

## COPYRIGHT

Copyright (C) 2009-2026 The Bitcoin Core developers

Please contribute if you find Bitcoin Core useful. Visit \<https://bitcoincore.org/\> for further information about the software. The source code is available from \<https://github.com/bitcoin/bitcoin\>.

This is experimental software. Distributed under the MIT software license, see the accompanying file COPYING or \<https://opensource.org/license/MIT\>

## SEE ALSO

[bitcoin(1)](/bitcoin/1.md), [bitcoind(1)](/bitcoind/1.md), [bitcoin-cli(1)](/bitcoin-cli/1.md), [bitcoin-tx(1)](/bitcoin-tx/1.md), [bitcoin-wallet(1)](/bitcoin-wallet/1.md), [bitcoin-util(1)](/bitcoin-util/1.md), [bitcoin-qt(1)](/bitcoin-qt/1.md)