Daily Summary2026-09-23
Stories clustered across sources, with day-to-day continuity and threading.
Binance Buys Into Circle
Binance takes a $100M equity stake in Circle with a five-year USDC deal — the paid distributor becomes a shareholder.
Coinbase Builds Quantum-Safe Custody
Coinbase is developing post-quantum custody infrastructure designed to support all Bitcoin signature schemes, per coverage, with Decrypt detailing what it described as a $250 billion institutional playbook for the effort. Coverage placed Coinbase's quantum-resistance work in the context of a broader Bitcoin Lightning Network vulnerability, with a separate item from East Texas A&M University researchers describing what coverage characterised as the first quantum-proof defence applied to the Lightning Network. A third item noted that making Lightning quantum-safe may involve privacy trade-offs, per reporting.
CFTC Scrutinises Kalshi Over $5B in Near-Identical Ether Perpetual Trades
The CFTC is scrutinising Kalshi's ether perpetual futures after roughly $5 billion in near-identical trades, per the Wall Street Journal as cited in coverage. CoinDesk's own data analysis found Bitcoin and ether perp volumes on the platform dominated by an unusual, repetitive single-size order pattern. The wash-trading characterisation is attributed to market observers; no formal regulatory finding exists. The review lands days after Kalshi filed with the same agency for US stock perpetual futures.