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.@solana activated Alpenglow on Oct. 21, targeting 150ms finality. Faster finality shortens settlement’s last step, while Solana’s delivery-versus-payment program has both parties fund escrow before the atomic exchange. via @pelicamatos cryptoslate.com/solana-targe…

Stablecoin issuers face a 5% immediate-liquidity floor under the OCC’s final rule, down from the proposed 10%. The rule also drops a proposed insured-deposit requirement for large issuers and takes effect Jan. 18, 2027. via @pelicamatos cryptoslate.com/treasury-hai…

Bitcoin holds $80,000 as US spot ETF net inflows slowed from $526.7M on Oct. 19 to $23.2M on Oct. 20, per @FarsideUK. Friday brings US flash PMIs and final Michigan inflation expectations ahead of the Fed’s Oct. 28 decision. via @pelicamatos cryptoslate.com/bitcoins-800…

SideSwap says it has paid over 60 BTC across about 600 L-BTC peg-outs since reopening on Oct. 20. Payouts use its own Bitcoin wallet and can queue during refills. Direct Liquid Federation withdrawals remain restricted. via @akibablade cryptoslate.com/sideswap-reo…

The OCC can give existing US stablecoin issuers up to 12 months of relief from prior approval. Filing alone does not authorize issuance. They must request a waiver with a substantially complete application pending by Jan. 18, 2027. via @akibablade cryptoslate.com/occ-waiver-r…

.@arkham traced 500 BTC ($41.5M) from a Clifton Collins-linked wallet to an address it labels Coinbase Prime on Oct. 20. This is the fifth 500 BTC transfer this year. No sale is confirmed. via @hardeyjumoh cryptoslate.com/irish-drug-l…

Xaman’s hypothetical 100 XRP deposit needs about 15.4 months to recover entry and redemption costs at a constant 2.25% net annual return. The earnXRP vault’s Oct. 21 trailing APY was 1.18%, including discounted vested rewards. Analysis by @akibablade cryptoslate.com/xaman-xrp-yi…

Elon Musk says Tesla and @SpaceX are exploring a merger that could combine their disclosed holdings of 30,221 BTC. Independent committees have not agreed terms and may never reach a deal. via @hardeyjumoh cryptoslate.com/tesla-spacex…

OpenAI says Astra’s subagent removed a safety monitor and rewrote its regression test. Astra then falsely denied the removal. Neither that run nor a separate alert-suppression incident was automatically halted. via @hardeyjumoh cryptoslate.com/openai-revea…

🎬 NEW PREDICTION MARKET: Can Wildwood open above $10M? The $10–12M domestic opening range leads at 28.5% in the Oct. 21 snapshot. Seats, showtimes and ticket sales will determine how much audience interest becomes revenue. cryptoslate.com/predictions/…

Under @CFTC’s preliminary reading, refusing financing can still leave a retail cash Bitcoin trade under futures-style rules. The offer must cover the purchase, and exceptions like actual delivery still apply. Comments close Dec. 14. via @akibablade cryptoslate.com/declining-a-…

PHP patched two critical flaws rated 9.2/10 that can let unauthenticated attackers run code remotely. Kraken’s @c7five warns that embedded PHP in routers, NAS devices and firewalls may depend on vendor fixes. via @hardeyjumoh cryptoslate.com/crypto-secur…

Eclair developer @acinq_co urges operators to install 0.14.5 after fixing flaws, some of which malicious nodes could exploit. Operators can stop Eclair, upgrade and restart without closing existing Lightning payment channels. via @hardeyjumoh cryptoslate.com/bitcoin-ligh…

🗞 Top #Crypto Gainers & Losers: Wed, Oct 21 (24H) 📈 Biggest Gainers Wormhole $W +22.65% Convex Finance $CVX +20.20% Ethena $ENA +15.36% 📉 Biggest Losers Alaya Governance Token $AGT −22.13% Bedrock $BR −20.94% Bitway $BTW −18.53% cryptoslate.com/biggest-gain…

.@cryptoquant_com counted 11.81B XRP in exchange reserves on Oct. 17, worth about $15.7B at $1.33. The balances can serve custody, market making, hedging or collateral; they are separate from sell orders. via @pelicamatos cryptoslate.com/xrp-flashes-…

Coin Metrics research from @talostrading links crypto rallies to slower USDC growth and faster USDT growth the following week. None of its models explains more than 25% of weekly supply variation. via @akibablade cryptoslate.com/usdc-and-usd…

💎 NEW PREDICTION MARKET: Can Ethereum reach $2,500 by October 25? The $2,500 upside outcome is at 75.5% in CryptoSlate’s Oct. 21 snapshot. A qualifying Binance one-minute high can settle it even if ETH later retreats. cryptoslate.com/predictions/…

Coinbase-commissioned research puts Q3 stablecoin transfers at $891B after excluding trading infrastructure and automation. That is over four times Q1 2023’s $216B; the measure tracks transfers, not verified merchant sales. via @akibablade cryptoslate.com/stablecoins-…

Lido’s proposed Fallback Exits would pay exiting lenders with borrower collateral while reducing the affected debt. Borrowers nearest liquidation would be first; healthy-loan eligibility remains unresolved. Analysis by @akibablade cryptoslate.com/lidos-propos…

bitcoin:native rebounded to about $83,500 at 09:44 UTC on Oct. 21, ahead of the Oct. 27–28 Fed meeting. @glassnode’s proximity framework weights cost bases near spot; stronger support still needs buyers absorbing supply. Analysis by @akibablade cryptoslate.com/bitcoin-is-b…