wip on Nostr: Hi guys, i built an offline BIP39 lab after the Coldcard incident. You can try it : ...
Hi guys, i built an offline BIP39 lab after the Coldcard incident.
You can try it :
https://bip39.002140.xyz/If you can’t see the path from entropy → checksum → 12/24 words, you’re trusting a black box.
BIP39 Visual (single HTML, no server)
• Coin / dice / binary input
• Standard: phrase + SeedQR
• Pro: full pipeline (bits, SHA-256, groups)
• Time to crack
• Browser “Generate” flagged as unsafe on purpose
Not a wallet. Learning tool only. Never use a web seed for real funds.
I would appreciate the feedback.
Thank you!
Published at
2026-08-13 18:31:02 CESTEvent JSON
{
"id": "d4b95a754cf7dcf710d6b32ff72d1a3f70a74614a8f52dd85250c1360da38c7b",
"pubkey": "efa3b38a4ae2887bf68c3c44f6a3a5515e2bc972bca33b365642edd869aa63a3",
"created_at": 1786638662,
"kind": 1,
"tags": [
[
"r",
"wss://nostr.wine/"
],
[
"r",
"wss://relay.gasteazi.net/"
],
[
"r",
"wss://relay.primal.net/"
],
[
"r",
"wss://hist.nostr.land/"
],
[
"r",
"wss://eden.nostr.land/"
],
[
"r",
"wss://relay.snort.social/"
],
[
"r",
"wss://purplepag.es/"
],
[
"imeta",
"url https://blossom.primal.net/54de30814bfd28583d91d22175c959a1279237cd9d5ef6d7ee81cd69f583231a.png",
"m image/png",
"dim 922x920",
"service nip96"
],
[
"client",
"Primal Web"
]
],
"content": "https://blossom.primal.net/54de30814bfd28583d91d22175c959a1279237cd9d5ef6d7ee81cd69f583231a.png \n\nHi guys, i built an offline BIP39 lab after the Coldcard incident.\n\nYou can try it : https://bip39.002140.xyz/\n\nIf you can’t see the path from entropy → checksum → 12/24 words, you’re trusting a black box.\n\nBIP39 Visual (single HTML, no server)\n• Coin / dice / binary input\n• Standard: phrase + SeedQR\n• Pro: full pipeline (bits, SHA-256, groups)\n• Time to crack\n• Browser “Generate” flagged as unsafe on purpose\n\nNot a wallet. Learning tool only. Never use a web seed for real funds.\n\nI would appreciate the feedback.\n\nThank you!",
"sig": "260c147ffe229d10e1167ec2c0213bbc058e85b64fdeeee7c6ed39faaa9bc812b3f03f2395ece7403d8d9235e6d03f805d64e46662a62034cccb862629ac54f0"
}
