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Ezofox
d4843f4c280abba3d43d84ed7924b2567d7c166f5e72985b9f06d355601b5d78

Followed 🤙

Thanks will update my NIP-05 guide to add that note.

Yes, I think signing or authorizing events via the hardware wallet using NFC, PSBT via microSD or cable connection would be good options to use on a spare ColdCard not connected to your main Bitcoin stash (just a me being more paranoid approach). However, I don’t know yet if ColdCard will bring this in it’s update with Nostr Tools. Haven’t found much info on it yet.

Replying to Avatar Ezofox

I agree, this is their [tweet](https://twitter.com/COLDCARDwallet/status/1608886079159160834) about it.

You could go into ColdCard and derive a child key with BIP-85, once you do that you can enter the following in your browser console offline to generate the Nostr hex private key form that child seed:

```

[...new Uint8Array(await crypto.subtle.digest('SHA-256', new TextEncoder().encode('disorder dish either velvet insect session rigid rough work path bean release')))].map((b) => b.toString(16).padStart(2, '0')).join('')

```

Also, replace your seed in that.

Replying to Avatar Ezofox

I agree, this is their [tweet](https://twitter.com/COLDCARDwallet/status/1608886079159160834) about it.

You could go into ColdCard and derive a child key with BIP-85, once you do that you can enter the following in your browser console offline to generate the Nostr hex private key form that child seed:

```

[...new Uint8Array(await crypto.subtle.digest('SHA-256', new TextEncoder().encode('disorder dish either velvet insect session rigid rough work path bean release')))].map((b) => b.toString(16).padStart(2, '0')).join('')

```

This is still a browser way to do it. Wait for the coldcard Nostr tools to do it on the hardware wallet itself.

I agree, this is their [tweet](https://twitter.com/COLDCARDwallet/status/1608886079159160834) about it.

You could go into ColdCard and derive a child key with BIP-85, once you do that you can enter the following in your browser console offline to generate the Nostr hex private key form that child seed:

```

[...new Uint8Array(await crypto.subtle.digest('SHA-256', new TextEncoder().encode('disorder dish either velvet insect session rigid rough work path bean release')))].map((b) => b.toString(16).padStart(2, '0')).join('')

```

Could use a BIP85 seed from ColdCadd. Also they are adding a Nostr tools option soon.

You could use also this tool offline https://github.com/jeffthibault/python-nostr

Or just type in console:

`openssl rand -hex 32` to generate hex

and login.

- Nostros https://github.com/KoalaSat/nostros/ (starting to look good and work fine)

- https://www.neb.lol/nostr (newly released very alpha)

Apart from that there are browser clients like snort.social, hamstr.to, astral.ninja, iris.to, coracle.social and few others I forgot to bookmark.

It would be nice for clients to check for frequency of posts and replies and maybe content? But I feel these can be bypassed too. After the check is done I guess report it to relays, relays could also gossip and block publeys and IPs as a rate limit.

I pronounce it as Nostra.

Home feed all day! 🤙

You got me with that one! 😂

You’re welcome 😄🤙🤙

- New iOS (Testflight) and Android client Daisy - https://www.neb.lol/nostr

- New Nostr tool to spam https://github.com/gourcetools/spamster

- Nostream relay updated to v1.17.0

- jb55 working on Lightning Zap for Damus