Daily Summary2026-07-29
Stories clustered across sources, with day-to-day continuity and threading.
Claude Guts A Post-Quantum Bitcoin Candidate
Anthropic's Claude finds a novel attack on HAWK, a NIST post-quantum signature candidate, in 60 hours — halving its effective key strength and raising questions about how Bitcoin's eventual quantum migration gets vetted
Quantum-Safe Wallets, No Moving Day
AmericanFortress publishes a scheme to quantum-proof existing crypto wallets without moving funds — but it needs network-wide adoption, and its security is unproven
CLARITY Act Shelved Until Fall
Senate sets aside the CLARITY Act until after the August 8 recess as Democrats withhold votes over ethics provisions tied to Trump's crypto interests; Polymarket 2026 odds near 37%
Big Banks Plan Shared Deposit Token
JPMorgan, Bank of America, Citigroup and Wells Fargo are developing a shared tokenised-deposit network — bank deposits represented as blockchain tokens — operated by The Clearing House and targeting launch in the first half of 2027, per reports. Coverage framed it as the banks' joint response to stablecoin competition. Separately, America's Credit Unions urged the Senate to block interest-paying stablecoins, warning $6.6 trillion in deposits could be at risk.
Zcash Seals Its Vault, Starts Over
Zcash's Ironwood upgrade activated July 28, sealing the Orchard shielded pool — roughly 3.6 million ZEC, about $1.7 billion — after a researcher in May found a four-year-old flaw that could have allowed undetectable counterfeiting. Funds can now exit only through a "turnstile" capping withdrawals at verified deposits, and a replacement pool opened from zero, with about 40,000 ZEC migrated in the first day, per trackers.
Trade.xyz to Pay for Flash Crash
Trade.xyz says it will reimburse traders liquidated in the SK Hynix perp flash crash — insisting its oracle worked as designed, and calling the payout one-time and discretionary