Anthropic's FAA for AI, Cashu Proof of Reserves, Gold Overtakes Treasuries

Your daily bitcoin and macro intelligence briefing. AI-generated audio from the TFTC Bitcoin Brief newsletter, written and curated by Marty Bent. • Dario Amodei's 8,000-word policy essay calls for mandatory government testing of frontier AI models, with power to block deployments. Released same day Anthropic closed $35B credit deal. • "Automated R&D" listed as fourth existential risk category. That's the thing that makes open-source AI competitive. Classifying competition as a threat. • Anthropic's deep EA roots: Long-Term Benefit Trust chaired by CEO of Centre for Effective Altruism. Dario was 43rd Giving What We Can signatory. Three EA mega-funders were early investors. • Cashu gets cryptographic Proof of Reserves via Bark and Nostr. Ecash mints can now prove solvency without revealing individual balances. Working on mainnet. • Botanix shuts down Bitcoin L2 after 4 years: "insufficient demand for Bitcoin-native DeFi." The tech worked. Nobody came. • Fable 5 jailbroken within hours of release. Safety restrictions that crippled researchers didn't stop bad actors. • SemiAnalysis: $200/month AI subscriptions deliver far more than assumed $2K in token value. Labs will gate frontier models behind API-only access. • Gold overtakes Treasuries as world's largest reserve asset at 27% of central bank holdings. CPI at 4.2%, three-year high. • Hut 8 closes $4.25B bond for AI datacenter in Texas. Bitcoin miners becoming AI infrastructure companies. Get the full written brief with all links, sources, and on-chain data at tftc.io/bitcoin-brief