EntropyLab is an air-gapped Bitcoin calculator. One HTML file. You bring the entropy. It never rolls dice for you.
You do not need a hardware wallet or a software wallet to hold or receive bitcoin. A signing device is only for spending.
What it does:
• Dice rolls, coin flips, hex, or binary → seed
• Three dice methods: hash the rolls, BitBox-style, Ian Coleman / Keystone
• Seed phrase, xprv/xpub, WIF, hex key, Casascius minikey
• Optional passphrase
• BIP39 seed, Bitcoin Core key, xpubs, fingerprints, descriptors
• Legacy, nested SegWit, native SegWit, Taproot
• Mainnet and testnet
• Watch-only multisig (m-of-n from xpubs, no private keys)
• Recovery sheet you can save or print
•
PSBT inspect: where it sends, amounts, fee, signed or not
• ECDSA nonce reuse check (save `r`, compare next spend)
• Optional RFC 6979 check with a key that stays in RAM for that session only
Download the file. Open it on a machine that never goes online. Don’t type a real seed on a computer that’s connected.
https://t.co/gVaGECro4a
https://t.co/rN8b6FAkGP
I’m sorry, but I just can’t stand it anymore.
This massive, outrageous, pork-filled Congressional spending bill is a disgusting abomination.
Shame on those who voted for it: you know you did wrong. You know it.