BITCOIN-UTIL(1)

💖 BITCOIN-UTIL(1) 💖

okay bestie, welcome to the bitcoin-util manual page — it's a User Commands situation, and honestly? it's giving ✨tiny but mighty✨. no node required, no drama, just vibes and hex. let's get into it 🫶

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🌸 NAME 🌸

bitcoin-util — the manual page for bitcoin-util v31.1.0, and she's that girl 💅

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✨ SYNOPSIS ✨

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

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🦋 DESCRIPTION 🦋

so this is the Bitcoin Core bitcoin-util utility, version v31.1.0. periodt.

the whole point of bitcoin-util? it gives you bitcoin-related functionality that does not rely on the ability to access a running node. like, no node, no problem, she's independent, she's got main character energy 👑

the available [commands] are listed below, keep scrolling babes ⬇️

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🎀 OPTIONS 🎀

• -help — print this help message and exit (also works as -h or -?, because she's flexible like that 💁‍♀️)
• -version — print version and exit

Debugging/Testing options:

(yeah bestie, this section is literally empty in the original, i'm not gonna invent options for you, i'm not a liar) 🙈

Chain selection options:

• -chain=<chain> — use the chain <chain> (default: main). allowed values: main, test, testnet4, signet, regtest. pick your fighter 🌈
• -signet — use the signet chain. equivalent to -chain=signet. heads up though: 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. 🚨 lowkey important: support for testnet3 is deprecated and will be removed in an upcoming release. consider moving to testnet4 now by using -testnet4. like, fr fr, don't get caught lacking 💀
• -testnet4 — use the testnet4 chain. equivalent to -chain=testnet4. slay, future-proof 💅

Commands:

• grind — perform proof of work on hex header string 🔥

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👑 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>. (yes bestie, links in the manual, i'm just relaying them verbatim, don't @ me)

⚠️ this is experimental software. distributed under the MIT software license, see the accompanying file COPYING or <https://opensource.org/license/MIT>. read the license, she's iconic, she's protecting everyone 🌸

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💜 SEE ALSO 💜

bitcoin(1), bitcoind(1), bitcoin-cli(1), bitcoin-tx(1), bitcoin-wallet(1), bitcoin-util(1), bitcoin-qt(1)

(yeah bitcoin-util is in her own SEE ALSO list. self-love. we stan. 💖)

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and that's the whole page, bestie!! 🎉 this was bitcoin-util v31.1.0, from July 2026, and i love that for her. go grind some hex headers, stay hydrated, and remember: no node needed, just vibes ✨🦋💅

okay bye ily, read the docs, xoxo 💖