News Brief
DoorDash Picks Tempo Blockchain for Stablecoin Payouts Across 40+ Countries
DoorDash is working with the Stripe- and Paradigm-backed Tempo blockchain to roll out stablecoin payouts for merchants and Dashers in more than 40 countries.
News Brief
Short, time-sensitive reports from the BlockAI News desk.
News Brief
Polymarket V2 Goes Live Today: pUSD Replaces USDC.e, V1 Shuts Down After Migration
Polymarket's V2 exchange launches today with one hour of scheduled downtime at 11:00 UTC. The upgrade introduces pUSD — a new 1:1 USDC-backed collateral — retires USDC.e, cancels all open V1 limit orders, and ships behind a $5M bug bounty and audits from Cantina and Quantstamp.
Funding
Nava Raises $8.3M Seed Co-Led by Polychain and Archetype to Put Guardrails on AI Payment Agents
Two of crypto's sharpest VCs back an infra play for the 'agentic commerce' thesis — trust rails so autonomous agents can spend without going off the rails.
AI Labs
OpenAI Caught Live-Testing 'Spud' — Polymarket Opens 81% Odds on April 23 Launch
No blog post, no Altman tweet. API telemetry flagged a new model running at production scale — and crypto prediction markets are already betting on the release date.
DeFi & Infra
April's $606M in Crypto Hacks Already Exceeds Q1 by Nearly 4x — And the Month Isn't Over
Two incidents — Drift on April 1 and Kelp on April 19 — account for most of it, but a dozen smaller exploits filled the gaps.
Funding
OpenGradient OPG Lands on Binance Wallet Today — Verifiable AI Chain Raises $9.5M Before TGE
a16z crypto and Coinbase Ventures back the verifiable-inference project. 10% of supply unlocks at TGE; trading opens 11:00 UTC.
AI Agents
Cobo Ships Agentic Wallet — 80+ Chains, Claude MCP Hooked In, Keys Stay Split
Singapore custody veteran Cobo launches an MPC-backed wallet that lets AI agents trade and pay on-chain without ever holding a full private key.
DeFi & Infra
Kelp DAO $292M Exploit Becomes 2026's Largest — LayerZero Points to North Korea's TraderTraitor Unit
A bridge misconfiguration dragged $13.2B out of DeFi in 48 hours. Now the two parties are blaming each other over who chose the single verifier.