Anthropic said on March 31, 2026 that a public npm release of its Claude Code CLI mistakenly exposed about 512,000 lines of TypeScript via a shipped source map and an accessible archive. The package version 2.1.88 included a 59.8 MB JavaScript source map that pointed to a zip file on the company's Cloudflare R2 bucket, and mirrored copies later spread online. Anthropic said no customer data, credentials, model weights, or inference systems were compromised, and it is implementing changes to prevent a repeat.

Moody's Ratings has assigned provisional Ba2 ratings to as much as $100 million of bitcoin-backed taxable revenue bonds planned by the Business Finance Authority of the State of New Hampshire. The deal includes two classes due in 2029, with repayment reliant on BTC collateral and a mandatory redemption if collateral value hits the 1.40x LTV trigger.

Mercado Libre will end Mercado Coin, a Brazil-launched crypto loyalty token used for cashback rewards, with the program set to stop on April 17, 2026. From that date, users will no longer be able to buy, sell, or earn the token, and any unspent balance will be automatically converted into local fiat and credited to Mercado Pago accounts.

U.S. equities jumped Tuesday after reports suggested President Trump may be willing to end U.S. military operations in Iran, while Iran also indicated openness to talks under certain demands. The S&P 500 rose about 2.4% to near 6,496 and the Nasdaq gained roughly 3.3% to around 21,475, with about 77% of stocks advancing. Bitcoin climbed about 1.9% to approximately $67,798 and Ethereum rose roughly 3.9% to around $2,096 as broader risk appetite improved.

Chainalysis said it released its first blockchain intelligence agents this week, aiming to extend automated investigation and compliance workflows to any employee, not only trained analysts. The company said the tools rely on its verified transaction dataset and use auditable, deterministic workflows, with humans remaining responsible for high-stakes decisions. Chainalysis added that agents are expected to start rolling out over the summer of 2026, beginning with investigation and compliance teams.

A Google Quantum AI white paper dated March 30–31, 2026 argues that attacking Bitcoin-style elliptic curve cryptography could require far fewer quantum resources, sharpening focus on a 2029 migration target. The paper discusses scenarios including ~nine-minute key recovery from a broadcast transaction, a modeled 41% chance of pre-confirmation hijack, and estimates that about 6.9 million BTC (around 32% of supply) may be exposed when public keys are already revealed.

Bhutan's government shifted about 375 BTC (roughly $25.18 million) on March 31, 2026, lifting the past seven days' total outflows to 1,018 BTC. The activity was routed via Druk Holding & Investments, while Bhutan's remaining holdings were estimated at about 3,954 BTC (around $263 million) after a steep decline from a late-2024 peak above 13,000 BTC.

Bitcoin changed hands at $66,597 at 8:30 a.m. Eastern on Tuesday, March 31, 2026, alongside a $1.33 trillion market cap and $48.8 billion in 24-hour volume. The price stayed inside a $66,037–$68,130 intraday band, with technical signals leaning neutral-to-bearish as it remained below key moving averages.

Nakamoto Inc., a Nasdaq-listed bitcoin treasury company trading as NAKA, reported selling 284 BTC in March 2026 for about $20 million to fund operating needs tied to recent acquisitions and near-term liquidity. The firm’s Form 10-K for the year ended Dec. 31, 2025 listed a weighted-average acquisition cost of about $118,171 per BTC, implying an estimated ~40% realized loss on the sale. After the transaction, Nakamoto said it still holds roughly 5,058 BTC in treasury.