Oddbean new post about login | logout I just determiniscally derived a Nostr ID from a seed using #Coldcard Q's #BIP85 with 32 byte hex output. Its not only your wealth in 12 words. It's also your social graph. https://video.nostr.build/54249963a17438188f92883f606a35bdba628b83b79c879690fbd6558e4cec44.mp4
@NVK What about a "Nostr nsec" option for BIP85 menu? It could also show you which is the corresponding npub to crosscheck it in the client. https://image.nostr.build/fe08ac2456536e1f22ff5b6c5fcb29c986c3ef64c17b1b9ecda870dc942f2782.jpg
You can use the 32 bytes hex for now. To create a nsec we need to make some changes but only available on edge release.
Yes, this is what I did here in this other note. Works great! Just thought that being able to see the npub would help making sure everything went right. Cool for edge! nostr:nevent1qqsttzq5fsknw00yug8qpgay8mdgrydmqlgjlc0waa8tw5dq9wwd2agpzpmhxue69uhkummnw3ezumt0d5hsygpyud7pukcv3w5dmcn4f08lcca4k2vlspj037uj308nzkuuf9jl8vpsgqqqqqqsdyn683
wow can you explain what you did there. looks cool!
Having a seed in a Coldcard Q, I derived —using a BIP85 index— a deterministic 32-byte-hex. That's a private key for Nostr. I asked Q to show it as a QR, and then I scanned it with a Nostr client. Thats it. If I lose my phone or logout from client, I can always derive it again using the same seed and index with a CC Q 🙂
Does that only work with the ColdCard Q?
That's badass
Hemm Cool 😎
brutal! creo que me voy a pedir una Q para mi cumple 😹
This is the way. Next step forward will be for Nostr to support delegation so unrelated subkeys can be authorized to operate a single unchanging public identity.
Can't wait for subkeys to be easy and accessible. Every time I paste an nsec I feel like giving it away
Fantastic. Did you have to have a 24 word phrase in Coldcard to use BIP85? Can you use BIP85 with a 12 word original seed?
It was a 12 words seed and then I used the BIP85
Thank you.
Una pasada
Btw, Amethyst also supports seeds when creating an account within the app.
Have to try it. Wonder if it can scan it too for convenience. I suppose 32 byte hex would still be more comfortable
Bro, we all already knew you were a total nerd.
Thank you 🥹
Wow!!!! Nice!!!!!
Haven't tried yet
