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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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.
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.
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.
Bitcoin Slips Under $84,000 as the 10-Year Yield Hits a 2007 High
The 10-year Treasury yield ran past 5.1% on Wednesday and bitcoin gave up $87,000. Outlets do not agree on how much of the long side was liquidated.
Kiyosaki Calls a Historic Crash and Picks Gold, Silver and Bitcoin
Robert Kiyosaki told his followers on 15 September that the biggest crash in history has started, and repeated his advice to hold gold, silver and bitcoin over cash. He blamed debt, the AI boom and retiring Baby Boomers.
Spot Bitcoin ETFs Draw $999M, Their Biggest Day Since October 2025
US spot bitcoin ETFs took in about $999 million on Monday, led by IBIT, ARKB and FBTC. It was their largest day since October 2025.
Bitcoin Tops $85,000 for the First Time Since Late January
Bitcoin traded above $85,000 on 21 September for the first time since late January. More than $750 million in leveraged positions were liquidated, most of them short bets, as the price climbed.
Bitcoin ETFs Close the Week $6.2 Million Up After a $433M Friday
Four sessions moved about $1.5 billion in opposite directions and left $6.2 million behind. Ether funds broke a four-week inflow streak.
Bitcoin Reclaims $80,000 and $130 Billion Returns to Crypto's Cap
Bitcoin closed back above $80,000 on Friday and ether cleared $2,550, with about $130 billion added to the total crypto market capitalization in a day. A short squeeze did much of the work, and the tallies for it do not agree.
Bought for $7,805 in 2011, 10,000 BTC Left the Wallet at $1.09B
A wallet that took in 10,000 BTC for $7,805 in April 2011 emptied itself in July 2025, when those coins were worth about $1.09 billion. The buy and the exit sit in the same address history, fourteen years and roughly 140,000 times the price apart.