Quantum-Safe Bitcoin Transaction Cost Falls 79% to About $67
A week-long optimization contest run by StarkWare cut the estimated GPU cost from about $320. The gains are benchmark results, not a price anyone has paid.
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Brazil Orders Coaf Reports on Self-Custody Transfers Above $10,000
Resolution BCB No. 588 takes effect on 1 October, sending transfers of $10,000 or more to or from a customer's own wallet to Coaf by the next business day.
Block Puts Bitcoin Lightning Into x402, the AI Agent Payment Standard
Lightning joins a payment standard where stablecoins have carried the traffic so far. Block named no date for Square, Cash App or Bitkey.
Bitcoin ETF Flows Turn Positive for 2026 After a $2.84B Six-Day Run
A six-session run to Thursday brought in $2.84 billion and closed a deficit the funds had carried since the summer. Three counts of the year's net figure do not agree.
SEC Staff Put Token Buybacks and Network Upgrades Outside Howey
A Corporation Finance FAQ update says maintaining a working network is not the managerial effort that makes a token a security. The answers carry no legal force.
Bitget Sets a 28 September Restart After Raising the Tally to $387.5M
Withdrawals reopen in four stages from Monday, starting with bitcoin. The revised total is a recount, not fresh theft, and equals about 84% of the protection fund.
Strategy Asks Holders to Vote on Daily Dividends for Four Preferreds
Every calendar day would become a record date for STRC, STRD, STRF and STRK, with payment the next business day. Shareholders vote on 28 October.
Aave V4 Takes Coinbase Stock Tokens as Collateral for USDC Loans
Seven Coinbase equity tokens can back USDC loans on Base at collateral factors of 65% to 79%. The market opens small, capped near $29 million.
Bitcoin's Quarterly Expiry Settles With Totals From $14B to $16B
Deribit settled one of its largest expiries of the year at 08:00 UTC with bitcoin just above $84,000. Five outlets read the notional differently.
Kelp's Operator Sues LayerZero in Vancouver Over $292M rsETH Loss
Evercrest says LayerZero endorsed in writing the single-verifier setup broken in April's bridge exploit. Its co-founder calls the claim meritless.
Fed Proposes Tiered Capital and Two-Day Redemptions for Stablecoins
Two proposals set a 2% capital charge on the first $20 billion outstanding and a two-business-day redemption window. The comment clock runs 60 days.
Bitget Says $351.6M Left Its Hot Wallets as Withdrawals Stay Shut
The exchange says its $464 million protection fund covers the loss and that private keys were not taken. Withdrawals are still paused, with no timeline given.