Morning digest: October 27, 2026
The OCC is nudging community banks to issue their own stablecoins, and Aviva Investors put a share class of its roughly £22 billion sterling money-market fund on the XRP Ledger. A retired DotSwap signing server cost Bitcoin LPs about $685,000. Health leads with athletes: beetroot and nitrate supplements showed no pooled benefit across 659 of them, and 30 g of whey a day lowered muscle-damage markers. Locally, a Manassas Park teacher was charged over a loaded gun at a school, and Northern Virginia’s Costcos got roasted in a national ranking. Voronezh’s toll from Monday’s attack has risen.
Blockchain: community-bank stablecoins, Aviva on XRPL, a zombie signing server
The OCC wants community banks issuing stablecoins. The Office of the Comptroller of the Currency, which regulates national banks, urged community banks on Monday to consider issuing payment stablecoins under the GENIUS Act, directly or through subsidiaries, with requirements scaled to bank size. Its final GENIUS rule takes effect Jan. 18, 2027, but the application window isn’t open yet; issuers with substantially complete applications by then can seek temporary waivers. It signals regulators want smaller banks in the dollar-token market, not just the big issuers (CoinDesk; OCC bulletin).
On Nexus (ex-DotSwap) loses about 8.5 BTC through a retired signing service. An attacker forged signatures against a server-side signing interface that was still running on the retired DotSwap V1 platform, and drained its custodial multisig liquidity pools over about four hours, roughly $685K. Only LPs who hadn’t migrated were hit; self-custody wallets weren’t affected. V1 is now permanently offline, SlowMist is tracing the funds, and a post-mortem and compensation plan are promised. It’s the second “retired system still had live keys” loss in two days, after CoinDCX (KuCoin/TechFlow).
Bloom trading-bot users drained of about $953K. Onchain analysis traced 9,408 SOL moved from 48 wallets belonging to nine traders. Bloom blames a vulnerability in a third-party module and pledged to reimburse users; the exact cause hasn’t been independently established (Bitquery; TokenPost).
Miden opens an invite-only mainnet for private payments. The zero-knowledge chain spun out of Polygon went live Monday with real assets for launch partners and invited users of its Bread wallet. Transactions are executed and proven on the user’s own device and the chain stores only cryptographic commitments, so balances and history stay private, while issuers can attach code that runs on every transfer to enforce freezes or limits. Caveats for this phase: validators hold threshold-encrypted copies of transaction data, swaps are public, fees are paid in USDCx, and the network will be reset before public mainnet, so funds must be withdrawn first (Miden).
Briefly:
- Ripple adds after-hours yield for treasuries. “24/7 Returns” lets qualifying corporate clients earn returns on eligible digital assets, including its RLUSD stablecoin, held in Ripple wallets outside banking hours (The Crypto Basic).
- X100 post-mortems: the delay was a maximum. New analyses of Saturday’s ~$4.85M governance drain show the three-day voting period set a maximum, not a minimum, delay, so a single flash-loan transaction could win seats, propose, vote and execute; two copycats reused the path within 30 minutes (SigIntZero).
- HashKey’s first hToken. HashKey RWA’s hToken gives Hong Kong professional investors economic exposure to a HashKey fund’s Class A units, subscribed in USDT, without direct ownership of the units (The Crypto Basic).
- Treasury companies keep buying. Strive’s SEC filing shows 6,182 BTC bought Oct. 17–23 at about $82,732 each, taking it to 43,000 BTC; Bitmine added 10,452 ETH to reach 6.05M; Strategy bought no bitcoin and spent $204.9M buying back its STRC preferred stock (SEC 8-K; The Crypto Basic).
- Bitcoin near $80K before the Fed. It dipped to about $79.3K before steadying near $80K; ether is about $2,300 and SOL about $100. Arthur Hayes’ Maelstrom said it sold its whole directional book (CoinDesk).
Health: nitrate, whey, heat, plant protein and exercise snacks
The first three items come from trained athletes or healthy adults; then healthy older adults, adolescents, and three clinical groups.
Athletes: beetroot and nitrate gave no pooled performance boost. A meta-analysis of 45 placebo-controlled trials in 659 trained athletes across endurance, team and strength sports found no significant pooled effect on peak or mean power, VO2max, heart rate, lactate or perceived effort. A hint of better peak power in male-only studies was exploratory and not significantly different from mixed-sex studies. How to use it: if you’re already well trained, don’t expect beetroot shots to add much; training, sleep and caffeine come first, and test nitrate in training if you still want to try it. Limits: mixed protocols and small trials; the authors say the null result “should not be regarded as definitive evidence of no effect” (Sports).
Athletes: 30 g of whey a day lowered muscle- and liver-stress markers. In an 8-week double-blind trial, 59 power- and endurance-trained men took 30 g/day of whey or placebo. With whey, ALT, AST and creatine kinase fell in both groups, while placebo groups held steady or rose, especially the endurance athletes. How to use it: in heavy training blocks, a daily 30 g whey serving is an easy way to hit protein targets and may slightly ease blood markers of muscle damage. Limits: men only, four small arms, blood markers rather than performance, and no between-group effect sizes in the abstract (European Journal of Sport Science).
Healthy adults: one hot soak didn’t raise EPO. In a randomized crossover study, 16 healthy adults sat in 40°C water for 45 minutes. Estimated plasma volume fell 9.5% right after, was back to baseline within 12 hours with no later expansion, and erythropoietin, the hormone that drives red-cell production, didn’t change over 24 hours. How to use it: don’t count on a single hot bath to build blood; this says nothing about repeated heat-acclimation protocols. Limits: one session, small sample, no hemoglobin-mass or performance outcomes (Experimental Physiology).
Healthy older adults: corn and pea protein worked as well as milk after lifting. In a placebo-controlled trial, 48 healthy adults around 68 did 3 × 10 knee extensions at 75% of their one-rep max, then took 20 g of corn protein, a pea-corn blend, milk protein or placebo. Muscle protein synthesis rose about 216–217% with the plant proteins and 138% with milk versus 77% with placebo, with no differences among the three proteins, and lifting added to the effect in every group. How to use it: take about 20 g of protein after strength sessions; a plant blend is a fine choice. Limits: an acute lab measure over hours, one dose, wide variation, and the senior author reports dairy- and supplement-industry funding (Journal of Nutrition).
Adolescents: four 2-minute exercise snacks cut screen time by 52 minutes a day. In a cluster randomized trial in 12 school classes (386 teens), four 2-minute bouts of vigorous activity during school breaks, 8 minutes a day in total, cut device-measured screen time by about 52 minutes a day and improved smartphone-addiction scores at 4 months versus a wait-list. How to use it: to break a phone habit, swap idle breaks for 2-minute bursts like stair climbs or jumping jacks. Limits: teens at school, not adults, not blinded, and some gains faded once the program stopped (Scandinavian Journal of Medicine & Science in Sports).
Clinical group: water exercise lowered blood pressure in older adults with hypertension. A meta-analysis of 4 trials (123 people) found aquatic exercise cut systolic pressure by about 11 mmHg and diastolic by about 6 versus controls, with moderate certainty. How to use it: for older relatives with high blood pressure or sore joints, water walking or aqua aerobics is a low-impact option. Limits: very few, small trials and no dose given in the abstract (Frontiers in Cardiovascular Medicine).
Clinical group: any aerobic activity went with lower death risk in memory loss. In 116,563 Korean adults with mild cognitive impairment or dementia, low, moderate and high aerobic activity went with about 27%, 30% and 36% lower all-cause mortality than inactivity over about 3.4 years. Most of the benefit came from the first step up from inactive. How to use it: for an older relative with memory problems, any regular walking is worth encouraging. Limits: observational and self-reported; the authors say it doesn’t establish causality (GeroScience).
Clinical group: normal weight, big waist, type 2 diabetes: exercise helped. Among 323,029 Korean adults newly diagnosed with type 2 diabetes and a normal BMI, a large waist went with 13% higher risk of major heart and stroke events; among those with a large waist, regular moderate-to-vigorous exercise went with 26% fewer events and 28% lower death risk. How to use it: a normal BMI doesn’t rule out risk, so measure your waist. Limits: observational, self-reported activity, Korean cut-offs (Journal of the American Heart Association).
General and local
Manassas Park teacher charged over a gun at school. A loaded handgun was found in the Manassas Park Middle School parking lot, and all four city schools closed Monday. Manassas Park High art teacher Veronica Gooch-Ray was charged with possessing a firearm on school property and placed on leave. Police said there was no threat, and schools reopen today (Potomac Local; WTOP).
Iwo Jima statue suspect gets a $2,500 bond. Circuit Court Chief Judge Petula Metzler set a $2,500 bond Monday for Miguel Alonso Maldonado Soriano, replacing the cashless bail a lower court had granted. Conditions include GPS monitoring, an ICE detainer has been lodged, and his preliminary hearing is in January (WJLA).
Deadly crash near Yorkshire. Police say a 16-year-old driving a pickup sped through a stop sign at Leland Rd. and Maplewood Dr. late Saturday and hit a car, killing Jose De Lovo, 70, and Guadalupe Alvarez De Lovo, 54. Neighbors are asking for a four-way stop (WUSA9).
Markets up on Anthropic, Fed meets as oil tops $116. The S&P 500 rose 0.70% Monday to 7,676.77 after Anthropic’s public IPO filing lifted AI and chip stocks; it plans to list on Nasdaq as “ANT.” This morning futures are about flat, Brent is back above $116 as attacks on Gulf shipping continue, and the 10-year yield sits just under 5%. The Fed’s two-day meeting starts today; markets see only about a 10% chance of a hike Wednesday, with December the bigger worry (AP; Yahoo Finance).
Briefly:
- PWCS boundary review begins. Prince William schools are starting a divisionwide boundary review driven by shifting enrollment and universal pre-K; nothing is decided, and public input starts in spring 2027 (PWCS).
- Manassas rethinks battery storage. City Council was set to take up a plan to share about 27% of the costs and benefits of battery sites in Harrisonburg and Culpeper, replacing the Old Town Church Street site neighbors opposed; the outcome hasn’t been reported (Manassas Journal).
- Fairfax supervisors meet today. The 9:30 a.m. meeting includes a Circuit Court property-alert system to protect owners from deed fraud (Fairfax County).
- Road Shark wrap-up. Fairfax police issued nearly 20,000 citations in the final wave of this year’s traffic-safety campaign (Northern Virginia Magazine).
- Election Day is one week out: Tuesday, Nov. 3.
Lighter note: NoVA’s Costcos get roasted. An SEO firm ranked Costco warehouses by Google reviews, and Northern Virginia did badly. Arlington’s South Fern Street store is the 6th-worst in America at 4.31 stars, and Fairfax’s West Ox Road store is 8th. Manassas (Sudley Manor Dr.) is the 5th-worst in Virginia and Woodbridge (Potomac Mills) 7th. One Arlington reviewer: “The worst Costco I’ve ever been to. Always a problem and I absolutely love and adore Costco.” Another spent 30 minutes circling the West Ox lot on a Saturday looking for a spot (Northern Virginia Magazine).
Photo: jetcityimage/stock.adobe.com, via Northern Virginia Magazine.
Science: a black hole that reaches zero temperature
A preprint claims the third law of black hole thermodynamics fails in pure gravity. The 1973 law says a black hole can’t be spun or charged up to “extremal,” zero-temperature status in finite time, the analogue of never reaching absolute zero. Stefan Czimek of Leipzig University claims a rigorous construction in which gravitational waves alone, with no matter, turn an ordinary black hole into an exactly extremal Kerr black hole, settling a conjecture Kehle and Unger posed after doing it with charged matter. Caveats: a fresh, single-author, unrefereed preprint, a fine-tuned construction rather than how real black holes behave, and no expert reaction yet (arXiv).
Russia: Voronezh toll rises
Voronezh and Moscow. Gov. Gusev raised the toll from Monday’s attack to three dead and 39 injured, with more than 250 cars damaged; officials say messenger posts about a hit on a Voronezh power plant are false. Overnight one drone was downed over the city with no damage reported, and Vnukovo was briefly restricted before all Moscow airports returned to normal (Vesti Voronezh; Voronezhskie Novosti; Vesti).
Bottom line
Stablecoins are moving down to community banks, and On Nexus is another reminder that a retired system is only retired when its keys are dead. In Health, skip the beetroot expectations if you’re well trained, keep 20–30 g of protein around training, and swap idle breaks for 2-minute bursts. Locally, Manassas Park schools reopen today, the Iwo Jima suspect now faces a $2,500 bond, and if your Costco feels like the worst in America, Arlington’s is officially worse. Voronezh’s toll from Monday has risen to three.