It's relatively easy to create a random, 'raw' BIP39 passphrase, without using any computer, using a coin or a dice (e.g. 132 flips or throws with an unbiased item).
But can you compute the correct last word (it includes the checksum) on paper?
Can you derive a bitcoin address from the passphrase on paper? Or do you need to trust some chip, some CPU, with whatever inside?
I'm working on a solution...
optout
npub1kx…3lecx
2024-04-11 14:41:08
Author Public Key
npub1kxgpwh80gp79j0chc925srk6rghw0akggduwau8fwdflslh9jvqqd3lecxPublished at
2024-04-11 14:41:08Event JSON
{
"id": "00d86dd8bfe7d2256c9a1509b16e81abcc13adbf4829d4670bf7a6ac7d41c0aa",
"pubkey": "b190175cef407c593f17c155480eda1a2ee7f6c84378eef0e97353f87ee59300",
"created_at": 1712846468,
"kind": 1,
"tags": [],
"content": "It's relatively easy to create a random, 'raw' BIP39 passphrase, without using any computer, using a coin or a dice (e.g. 132 flips or throws with an unbiased item).\nBut can you compute the correct last word (it includes the checksum) on paper?\nCan you derive a bitcoin address from the passphrase on paper? Or do you need to trust some chip, some CPU, with whatever inside?\nI'm working on a solution...",
"sig": "a894e5a5c4a050fc81492cac819499b4af8eab5106b76997fa28ee53e789db65538c8d9434b7e03df83c8941df61d8e2fb0ef91aa957f639f4448e97bbfe9efb"
}