Peer, a ZK-powered fiat–crypto bridge, launched its Disputes Portal, an automated system to protect liquidity providers from fiat chargeback fraud. The issue lies where takers pay in fiat, receive USDC onchain, then reverse the fiat payment. The dispute portal allows Peer LPs to submit the disputed transaction and the payment platform's email. Using DKIM verification, the system proves if the email is authentic, and the protocol cross-checks the amount, date, and transaction ID against onchain records.

If a dispute is approved, the attacker's wallet and linked wallets are blocked, payment methods are revoked, and refunds are triggered. Each case permanently removes bad actors. The feature is live now, starting with Venmo.

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On May 1, 2026, the Ethereum blockchain processed its 25,000,000th block since inception. Go-Ethereum contributor Lightclient celebrated the milestone on X.

Block 25,000,000 contained 377 transactions and 122 internal contract transactions, was produced by Titan Builder, and burned 0.04 ETH in gas fees.

The milestone comes as Ethereum approaches its 11th year of operation with 100% uptime, maintaining uninterrupted service through major upgrades, including the transition to proof-of-stake, while supporting a vast ecosystem of DeFi applications.

Disclaimer: Content is for informational and educational purposes only and does not constitute financial, investment, legal, or other professional advice. No representations or warranties are made as to accuracy, completeness, or timeliness. Use of this content is at your own risk, and you should consult a qualified professional before making decisions. No fiduciary or advisory relationship is created

Optimism expanded its Actions SDK, evolving it from an early developer preview into a more complete framework for embedding DeFi directly into applications. The updated SDK introduces fully integrated onchain financial actions, allowing users to lend, earn yield, swap tokens, and make payments without needing external wallets.

The Actions SDK supports lending through Aave and Morpho, and token swaps via Uniswap and Velodrome, with built-in routing and liquidity handling. A standardized action interface unifies all operations under a consistent structure, reducing integration complexity. The expansion deepens wallet infrastructure, adding embedded wallet integrations via Privy, Turnkey, and Dynamic, with support for EOAs, smart wallets, bundlers, and paymasters. The SDK enables multi-chain DeFi experiences across OP Stack chains.

Disclaimer: Content is for informational and educational purposes only and does not constitute financial, investment, legal, or other professional advice. No representations or warranties are made as to accuracy, completeness, or timeliness. Use of this content is at your own risk, and you should consult a qualified professional before making decisions. No fiduciary or advisory relationship is created