Canada's Department of Finance confirmed Bill C-15 has received Royal Assent, opening the door to a federal stablecoin regime overseen by the Bank of Canada. The plan would require fiat-backed issuers to register, hold 1:1 reserves, and offer par-value redemptions, while restricting yield and certain marketing. Authorities expect consultations over the next 12 to 18 months, with full rollout targeted for 2027.

Coinbase said it received conditional approval from the Office of the Comptroller of the Currency to form Coinbase National Trust Company under federal oversight. Announced on 2 April, the national trust charter is positioned as a custody and market-infrastructure vehicle rather than a commercial bank, with no deposits or lending.

Drift Protocol has suspended deposits and withdrawals after confirming an active attack and disclosing the incident on 1 April. Early on-chain estimates put potential losses near $285m, spanning assets such as $71.4m in USDC and $159.3m in JLP. The team said it is working with security firms, bridges, and exchanges, while the alleged exploit method remains unconfirmed.

The U.S. Department of the Treasury released its first proposed rule under the GENIUS Act and opened a 60-day public comment period. The plan would let payment stablecoin issuers operate under federal oversight or under qualifying state regimes if outstanding supply is below $10b, with larger issuers shifting toward OCC-led supervision.

Solana and Ethereum set new transaction records in Q1 2026, underscoring two different approaches to network activity. Solana processed 10.1 billion transactions, while Ethereum logged just over 200 million, pointing to scale-led throughput on one chain and value-focused settlement on the other.

A senior CFTC official said in remarks delivered on 31 March that insider-trading laws apply to prediction markets and that the agency will step up detection, investigations, and prosecutions. The comments come as total trading volume across platforms including Polymarket and Kalshi reached $75 billion in Q1 2026, versus $330 million in Q1 2024.

A research paper involving Google warns that sufficiently advanced quantum computers could eventually break elliptic-curve cryptography used by major blockchains, adding pressure to Ethereum's post-quantum transition plans. The authors estimate 1,200–1,450 logical qubits could crack secp256k1 within minutes, with an “on-spend” attack window potentially as short as 9–12 minutes. Ethereum’s roadmap is expected to take years as larger signatures and higher compute requirements complicate upgrades and user migrations.

Coinbase has suspended trading for Ronin (RONIN) as the network moves into the execution stage of its planned migration to a new Ethereum layer-2. The exchange said on 30 March that users can still withdraw funds, but it will not handle the migration for customers and RONIN must be moved to a compatible self-custodial wallet before the upgrade completes.

Bitmine Immersion Technologies said it added 71,179 ETH in the week ending March 29, worth over $140 million at roughly $2,005 per token. Over the same March 23–29 window, Strategy disclosed it made no Bitcoin purchases and did not issue shares via its at-the-market program. Both firms hold about 3.6%–3.9% of their network supply, but their treasury approaches and mNAV multiples differ.