governance
Cardano DRep vote rejects 7.8M ADA Summit treasury draw at 65.21%
Cardano's on-chain treasury vote for the Foundation's Singapore summit closed May 29 with 65.21% DRep stake yes, 1.46 points below the 66.67% supermajority.
Newsroom
All blockchain stories from the Blockchain Posts desk.
regulation
Circle freezes Zama's cUSDC wrapper for $12.6M on TRO from federal court
A U.S. federal TRO in Newton AC/DC Fund v. Ermilov forced Circle to blacklist Zama's cUSDC contract at 01:08 UTC on May 30, 2026, locking 12.6M USDC.
exploit
Gravity Bridge halted after $5.4M drain on suspected key compromise
Cosmos-Ethereum Gravity Bridge lost ~$5.4M on May 30. Peckshield and on-chain analyst Specter call it a signing key compromise. Team halted validators; attacker holds ~2,102 ETH.
protocol
Zcash Zebra 4.5.0 patches P2SH sigop bug that risked chain split
Zcash Foundation ships Zebra 4.5.0 plus a 4.5.1 hotfix, closing 15 advisories including a critical P2SH disabled-opcode sigop undercount that could split the chain.
infrastructure
DTCC connects tokenization service to Stellar for Russell 1000 and Treasuries
DTC will tokenize Russell 1000 equities, ETFs and US Treasuries on Stellar under its SEC no-action letter. First production trades targeted for July, broader rollout October.
infrastructure
Leap Wallet sunsets May 28, four-year Cosmos default-wallet run ends
Leap Wallet shuts down all products on May 28, 2026 — browser extension, mobile apps, Compass, Swapfast and the Leap Cosmos Hub validator. ATOM stakers need to redelegate before the unbonding window.
protocol
Ethereum Foundation ships Kohaku Railgun SDK alpha-22 with ERC-4337 relaying
The Kohaku privacy SDK landed @kohaku-eth/railgun v0.0.1-alpha.22 on May 26 — brotli compression, ERC-4337 mempool relaying operational. Tornado Cash and Privacy Pools modules still in dev.
governance
Cardano DReps pass Leios scaling proposal with 84%, releasing ₳27.7M
Cardano's delegated reps approved Input Output's Leios funding on May 24 with about 84% turnout, unlocking ₳27.7M from the treasury. Testnet targets June 23.
exploit
Bybit cold wallet drained for ~$1.5B; Lazarus signatures on-chain
Bybit's primary ETH cold wallet lost about 401,000 ETH on Feb 21, 2025 via a Safe{Wallet} UI manipulation. Arkham and the FBI attribute the attack to Lazarus.