We held an impromptu Twitter spaces on Proof of Keys day to discuss Bitcoin self custody. I was joined by guests including Justine Harper, Jameson Lopp, Dee, Craig Raw, Lazy Ninja and Rijndael among others, to discuss all things Bitcoin self custody - from noob to self custody guru!

Discussion Topics:

• 00:07:46 Most common ways to lose coins
• 00:19:01 Passphrases
• 00:27:30 Leaving coins on exchanges
• 00:34:51 Metal backups
• 00:40:21 Wallet recovery
• 00:44:01 Singe sig roundup
• 00:44:45 Seed XOR
• 00:48:14 Multisig overview
• 00:51:34 Multisig solutions
• 00:57:28 Unchained capital collaborative multisig
• 01:00:56 Casa collaborative multisig
• 01:04:55 Nunchuk multisig
• 01:09:27 Summary of self custody solutions
• 01:17:12 Security
• 01:18:34 Can SHA256 be broken?
• 01:22:53 Entropy and secure key generation
• 01:29:30 Air gapping and secure software/hardware
• 01:36:59 Binaries
• 01:38:24 Hardware random number generators
• 01:46:00 Quantum computer risk
• 01:46:48 Multisig grifting attacks
• 01:49:13 All signing devices are not made equal
• 01:51:34 Rolling dice for entropy
• 01:52:18 Correctly adding entropy to key generation
• 01:54:15 Important features of hardware wallets
• 01:56:06 "Strength in numbers" in Bitcoin security
• 01:59:06 Different approaches to signing device security
• 02:00:34 True versus concatenated random number generators
• 02:04:00 Summary of complexities and theoretical risks in wallet generation
• 02:05:32 USB VS SD
• 02:11:00 Non secure chip attack vectors
• 02:12:40 Firmware attack vectors
• 02:15:38 Multichip approach to hardware security
• 02:16:18 Relevancy of weighting of dice for creating entropy

Links & Contacts:

• Website: https://bitcoin.review/Podcast
• Twitter: https://twitter.com/bitcoinreviewhq
• NVK Twitter: https://twitter.com/nvk
• Telegram: https://t.me/BitcoinReviewPod
• Email: producer@coinkite.com
• Nostr & LN:⚡nvk@nvk.org (not an email!)

Full show notes: https://bitcoin.review/podcast/episode-19/