It takes about 10 minutes to create a new #bitcoin private key offline this way
#timewellspent #offlinebitcoinprivatekey #bitcoin #nostr https://video.nostr.build/eafc0e55bfea8997fadf01a1369258d10c5d7b4fec5321f2018426f6130e18ff.mp4
Discussion
How does it work
By assembling by the bits randomly you end up with a 256-bit number, a #bitcoin #privatekey (you would check it is within the domain of possible keys)
Each side is numbered
Use the key to generate receive addresses, #bitcoin public keys (l#npub ‘s, too), even sign transactions at some point
Since your key is made completely offline you don’t have to worry about hacking
How about the check sum?
Works fine👍🏻—this #bitcoin key is the 256-bit integer, so no checksum needed
So it works every time?
You would have to enter each 1 or 0 into a wallet manually to get any use out of it right? Aren't you afraid of making a mistake?
Next is to build a signer or address generator to do it automatically ala seedsigner or crux/maix, but in the meantime I made a spreadsheet to help translate the private key into public keys/npub/addresses—you can use any tool to do this and of course #offline is best
Converting 256 bits into digital form is easier than you expect—took about two or three minutes. You quadruple check, to be sure, as you would for anything of value, and of course you have backups
Its interesting as it looks like you start with the backup, then move into the digital space.
Pretty cool!
How about a passphrase? I guess that would have to be on a separate piece.
Is there an even amount of ones and zeros? Wouldn't it be better to have a lot more left over?
Not sure I understand the questions—there are 256 bits to the integer, and 256 bits on this key
Depending on the orientation when randomly placed into the key the bit is set as a 1 or a 0
I include a few extra bits in case some get lost under a cushion
Choosing between 128x ones and 128x zeros would be less random than choosing between 200x ones and 200x zeros.