🇰🇷 Excellent 12-min Korean tutorial for Penlock just dropped by Shinabu_btc (시나부). Perfect for a quick, comprehensive overview of seedphrase generation, splitting, and recovery. 감사합니다! 🙏 Reminder: Always use the official guides when dealing with real funds. ⚠️

Penlock got covered in @jimmysong’s Bitcoin Tech Talk! ✨ This is a high-signal newsletter that always comes with some food for thought… I don't know how he keeps up with reading so much, year after year! Here’s what he had to say about Penlock: “If you want to back up a seed phrase but don’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.” Well, looks like we’re on the same page… more news about it soon! 📰 Bitcoin Tech Talk:

Bitcoin Tech Talk | Jimmy Song | Substack

Bitcoin weekly news from a technical perspective. Click to read Bitcoin Tech Talk, by Jimmy Song, a Substack publication with thousands of subscrib...

📌 We were featured in:

Bitcoin Tech Talk #477

Interesting Stuff

We're excited to welcome our second sponsor: @Coconut. ! 🥥 The @Coconut. 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 👥. 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! ✨ You can find them at

Coconut — A new standard for self-custody

and

Bitcoin Center Seoul

Bitcoin Center Seoul - A space for Bitcoiners in Seoul

... Or, meet there in person? 📍

We're thrilled to announce our first sponsor: Angor! 🎉 @Angor is a P2P crowdfunding protocol built on Bitcoin and Nostr⚡. It leverages smart contracts to provide a fully non-custodial solution, using Nostr as its only back-end. We've been in touch with the @Angor team since Penlock's pre-release in Bali. In fact, the not-for-profit Penlock shop was largely inspired by our conversations about aligning incentives between open-source projects and their backers. The team has a great "build forward" mindset and has consistently supported the community, so we're really glad to feature them on our kits! 🤝 You can find them at https://angor.io. A V2 is coming soon—we definitely advise checking that one out! 👀 #bitcoin #penlock #angor

🎉 Our campaign to bootstrap a not-for-profit Penlock shop was a success! We raised 0.07 BTC – almost double our goal! A huge thank you to everyone who contributed and reposted. A special thanks to our two main backers – we're excited to announce our sponsors soon!

🎉 The Penlock team is growing! Warm welcome to Emily Hughes ( @emily ) , co-creator of @Blockhunters - The Bitcoin Board Game! She'll help redesign the kit and take charge of our branding and visual communication. Let's keep building together! 🙌

🚀 We're seeking to raise 0.04 BTC to bootstrap a not-for-profit Penlock shop! 🎯 Our goal: fund free Penlock kits & workshops at Bitcoin conferences worldwide! ✨ Backers can get: • Private support • Consulting sessions • Their brand on the kits! Join us to celebrate self-custody and self-sovereignty through this peer-to-peer campaign on @Angor 🔁 Repost to make Penlock grow. 🥰 https://hub.angor.io/project/angor1qfydf802v2efvxufevrfg0mvtlrxln63rkzmdxw

Penlock V1 is here! 🔒 For years, we've been told not to write passwords on paper... And here we are, writing down the most critical data of all - the keys to our savings! ⚠️ That ends now! Penlock lets you split your seed phrase into a secure 2-of-3 backup using pen & paper. Setup offsite recovery & trust-minimized inheritance without depending on any service! 👍

Penlock / Level-Up Your Wallet Backup!

Print & assemble Penlock

#Bitcoin #SelfCustody

Hello, World! Penlock's pre-release is now live at

Penlock / Level-Up Your Wallet Backup!

Print & assemble Penlock

See you all at the Indonesia Bitcoin Conference!