🚨 Mining pools filtering transactions? @b10c ‘s work with MiningPool.Observer revealed block template mismatches and hidden backend pooling, challenging mining transparency. @DETERMINISTIC OPTIMISM 🌞 & @Rob Hamilton discuss in BR090.

Bitcoin Safe 1.0.0rc1 is here 🚀 ✅ Full HW wallet support ✅ Label sync & backup (via Nostr) ✅ Sync & chat tools @DETERMINISTIC OPTIMISM 🌞 & @Rob Hamilton discuss integrating Nostr for coordination and encrypted backups, paving the way for Bitcoin-native apps in BR090.

🚨 Proton Wallet’s early preview was found vulnerable by Zellic, using Dart's Random() class—a non-secure RNG for mnemonics. @DETERMINISTIC OPTIMISM 🌞 and @Rob Hamilton discuss the vulnerability in BR090.

.@npub1reez...9ty4 ‘s @Bitcoin Dev Kit based app delivers address verification over NFC with COLDCARD Q! 🚀 @DETERMINISTIC OPTIMISM 🌞 & @Rob Hamilton share insights in BR090. Demo: https://njump.me/nevent1qqs8qjzkcdtzp93tkckekezeevvlnh6rjugc5a6wk4urdncn4080sjcpzemhxue69uhhyetvv9ujumn0wd68ytnzv9hxgq3qreezn2ctrrg736uqj7mva9lsuwv0kr5asj4vvkwxnrwlhvxf98tscetek9

@BULLBITCOIN.COM mobile wallet now supports PayJoin V2, enabling serverless, asynchronous transactions. 🚀 @DETERMINISTIC OPTIMISM 🌞 and @Rob Hamilton discuss this exciting update in BR090.

A fake Uber driver was recently found to have stolen $223,000 in cryptocurrency. Lessons: ☝️Use cold storage for large amounts ☝️Don’t store funds in an exchange wallet. ☝️Use passcode on apps involving money ☝️Don’t part with phone @DETERMINISTIC OPTIMISM 🌞 and @Rob Hamilton break it down in BR090.

COLDCARD Edge v6.3.4 introduces 🔐 Delta mode enhancements: ✅ Secure Notes/Passwords hidden in Deltamode ✅ Automatic seed wipe on suspicious access @DETERMINISTIC OPTIMISM 🌞 explains how these features support travelers & nomads managing unique threat models in BR090.

Tangem hardware wallet fixed a critical app bug that saved seed phrases in logs. Users lost funds, raising concerns about secure Java card implementations. @DETERMINISTIC OPTIMISM 🌞 and @Rob Hamilton discuss the case, and why trustworthy #bitcoin-only vendors are so important, in BR090.

Bitcoin’s signatures traditionally commit to UTXOs. What if they could commit to anything? 🤔 BIP 348’s CHECKSIGFROMSTACK makes it possible - paving the way for better scaling, innovative oracle use cases and more. @Rob Hamilton explains in BR090.

How do signatures prove ownership without revealing private keys? 🤔 Bitcoin ownership isn't about holding coins - it's about proving you control UTXOs on the blockchain. @DETERMINISTIC OPTIMISM 🌞 & @Rob Hamilton give an ELI5 on #bitcoin signing in BR089.

🚀 BR090 - COLDCARD, BullBitcoin, Bitcoin Safe, miningpool-observer, Zero Fee/P2PK Playgrounds, Tangem Private Keys Exposed, Proton Wallet Vuln, Signatures Explained, "Not Enough UTXOs!" + MORE ft. @Rob Hamilton & @DETERMINISTIC OPTIMISM 🌞 Listen to the episode: ➡️ Fountain:

Bitcoin.Review Podcast with NVK & Guests • BR090 - COLDCARD, BullBitcoin, Bitcoin Safe, miningpool-observer, Zero Fee/P2PK Playgrounds, Tangem Private Keys Exposed, Proton Wallet Vuln, Signatures Explained, "Not Enough UTXOs!" + MORE ft. Rob • Listen on Fountain

➡️ Spotify:

Spotify

BR090 - COLDCARD, BullBitcoin, Bitcoin Safe, miningpool-observer, Zero Fee/P2PK Playgrounds, Tangem Private Keys Exposed, Proton Wallet Vuln, Signatures Explained, "Not Enough UTXOs!" + MORE ft. Rob

Bitcoin.Review Podcast with NVK & Guests · Episode

➡️ Amazon:

BR090 - COLDCARD, BullBitcoin, Bitcoin Safe, miningpool-observer, Zero Fee/P2PK Playgrounds, Tangem Private Keys Exposed, Proton Wallet Vuln, Signatures Explained, "Not Enough UTXOs!" + MORE ft. Rob-Bitcoin.Review Podcast with NVK & Guests

I'm joined by guest Rob Hamilton to go through the list.Housekeeping (00:01:37) Verify-address over NFC using a Coldcard Q and BDK iOS example wall...

➡️ Apple:

Apple Podcasts

BR090 - COLDCARD, BullBitcoin, Bitcoin Safe, miningpool-observer, Zero Fee/P2PK Playgrounds, Tangem Private Keys Exposed, Proton Wallet Vuln, Signatures Explained, "Not Enough UTXOs!" + MORE ft. Rob

Podcast Episode · Bitcoin.Review Podcast with NVK & Guests · 01/03/2025 · 1h 23m

➡️ YouTube: Shownotes: ➡️ Website: https://bitcoin.review/podcast/2025-01-03-episode-90/ ➡️ Substack:

BR090 - COLDCARD, BullBitcoin, Tangem & Proton Vulnerabilities, Signatures Explained + MORE ft. Rob

I’m joined by guest Rob Hamilton to go through the list.

How many UTXOs can Bitcoin truly support? With 2.1 quadrillion sats available for everyone in the world, NVK and Rob explain why the future lies in layered scaling. 👇

"We win this by network growth, not by choice of network players." ~ NVK Early forks tried more supply; now, it's elaborate scams. But the truth remains: ✅ Bitcoin is king. ✅ Secure your sats. ✅ Ignore the noise. @Rob Hamilton & @DETERMINISTIC OPTIMISM 🌞 give their bullish sentiments in BR089.

The Overton window has shifted: 10 years ago, the idea of nations adopting #Bitcoin as reserves seemed insane. Today, it's happening. 🚀 @Rob Hamilton , @DETERMINISTIC OPTIMISM 🌞 & @craigraw reflect on Bitcoin's magnificent rise in BR089.

Fewer memes, more progress. 💪 From a fringe experiment to global adoption in just 15 years. 🌍 @DETERMINISTIC OPTIMISM 🌞 and @craigraw break down how Bitcoin’s growth mirrors the rapid pace of tech startups - far from the centuries-long shifts of history. [BR089]

What happens if quantum computers break SHA-256? Could #Bitcoin survive such an event? @DETERMINISTIC OPTIMISM 🌞 , @Rob Hamilton and @craigraw discuss the quantum threat, and the possible defensive options we have available both now and in the future. [BR089]

If the government announced that all exchanges must move bitcoins over to a one-way hardfork that adds "monetary policy tools" and OFAC compliance, could #bitcoin support an exit for everyone who wants out? 🤔 @DETERMINISTIC OPTIMISM 🌞 , @Rob Hamilton and @craigraw respond to James OB’s tweet in BR089.

As a surge of retail investors opt for ETFs and MSTR over #bitcoin in self custody, this cycle has seen a decoupling between #Bitcoin's price and on-chain activity. @Rob Hamilton and @DETERMINISTIC OPTIMISM 🌞 discuss the effect in BR089.

🚨Two versions (1.95.6 and 1.95.7) of the popular solana/web3.js npm library were recently disovered to be malicious, harvesting private keys to drain wallets. @DETERMINISTIC OPTIMISM 🌞 , @craigraw & @Rob Hamilton discuss the lessons to be learned from this incident in BR089.

Sadly, not everyone will choose to self custody their #bitcoin, and instead are choosing to gain exposure through owning ETFs, and stocks like #MSTR. How bad is this for Bitcoin? @DETERMINISTIC OPTIMISM 🌞 & @Rob Hamilton weigh in on this question in BR089.

Bitcoin's history of community signalling thrives. The bitcoin wiki Covenants Support page displays a table of covenant opcodes and their levels of support among over 45 developers.👇

Covenants support - Bitcoin Wiki

@DETERMINISTIC OPTIMISM 🌞 and @Rob Hamilton discuss the importance in BR089.