Damus
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Penlock
@Penlock

Print & assemble Penlock's cryptographic wheel to split your seed phrase into a secure 2-of-3 backup. Protect against loss, theft, and enable secure inheritance

Relays (4)
  • wss://nos.lol/ โ€“ read & write
  • wss://nostr-01.yakihonne.com/ โ€“ read & write
  • wss://ribo.us.nostria.app/ โ€“ read & write
  • wss://relay.angor.io/ โ€“ read & write

Recent Notes

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https://www.youtube.com/watch?v=7kqJPCe6_fo

๐Ÿ‡ฐ๐Ÿ‡ท Excellent 12-min Korean tutorial for Penlock just dropped by Shinabu_btc (์‹œ๋‚˜๋ถ€). Perfect for a quick, comprehensive overview of seedphrase generation, splitting, and recovery. ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค! ๐Ÿ™

Reminder: Always use the official guides when dealing with real funds. โš ๏ธ
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โœ… Great newsโ€”we have the final sample! We addressed a couple glitches and have moved on to finalizing the Korean version, thanks to @nprofile1q...'s translation! ๐Ÿ™ We're also sorting out the printing contract, with delivery targeted for mid-February. ๐Ÿ“ฆ

@nevent1qvz...
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Oh, when you said "Let me know if you want one," I thought you were talking about making one for Penlock... I donโ€™t think I need a Codex32 one, to be honest โ€” it looks great though! You might want to mention it on the Codex32 GitHub; theyโ€™ll definitely be interested in it!
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There has been some demand for something like this, so I'm going to consider it. Could you send me a back-of-the-napkin quote and maybe some pictures of the Codex32 ones?
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It is the same concept, but the algorithm has been optimized for faster paper computation!
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Penlock got covered in @nprofile1q...โ€™s Bitcoin Tech Talk! โœจ

This is a high-signal newsletter that always comes with some food for thoughtโ€ฆ I don't know how he keeps up with reading so much, year after year! Hereโ€™s what he had to say about Penlock:

โ€œIf you want to back up a seed phrase but donโ€™t want the seed phrase in a single place, this is a very interesting option. The main idea is to split a 12-word seed phrase into a 2-of-3 backup, but instead of using a computer to split this up, it uses a printable paper wheel. It uses some clever cryptography under the hood and what you end up with in your shares are other seed phrases that can get combined to recover your 12-word seed. Honestly, the makers should make these wheels available for sale as it mitigates the evil maid attack.โ€

Well, looks like weโ€™re on the same pageโ€ฆ more news about it soon!

๐Ÿ“ฐ Bitcoin Tech Talk: https://jimmysong.substack.com/
๐Ÿ“Œ We were featured in: https://jimmysong.substack.com/p/bitcoin-tech-talk-477
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We're excited to welcome our second sponsor: @nprofile1q... ! ๐Ÿฅฅ

The @nprofile1q... team is building two mobile apps that work in tandem: Coconut Wallet, a watch-only Bitcoin wallet, and Coconut Vault, an offline signing app designed to run on fully isolated devices. Beyond software, they operate the recently opened Bitcoin Center Seoul to support education and community development ๐Ÿ‘ฅ.

We first connected at a Bitcoin public event in a Korean university, where their CEO took the stage as the MC. The vibe of a nearly-full amphitheater studying the potential of Bitcoin was really something else! โœจ

You can find them at https://coconut.onl and https://bitcoincenterseoul.com ... Or, meet there in person? ๐Ÿ“