News linked to both this project and an event.
According to Fortune, blockchain startup Nava has announced the completion of an $8.3 million seed funding round, co-led by Polychain and Archetype, aiming to prevent anomalous operations by AI financial agents through a custody and verification framework. Nava’s solution locks funds via custodial services; once an AI agent proposes a transaction, an on-chain verification mechanism assesses whether the transaction aligns with the user’s intent—only compliant transactions are executed, while non-compliant ones leave funds in custody. All verification decisions are publicly recorded on the blockchain for reference by other AIs. Nava currently operates as a Layer 3 blockchain on Arbitrum and plans to deploy a parallel chain on Tempo; it will also issue a native stablecoin in the future to support protocol operations. Nava’s infrastructure serves both individual users and institutions, enhancing asset security and transaction transparency.
According to The Block, Visa, Stripe, and Zodia Custody—a digital asset custody firm backed by Standard Chartered Bank—have become the first validators on the Tempo payment blockchain. Tempo is an Ethereum-compatible Layer 1 blockchain designed specifically for high-throughput payments and stablecoin settlement, primarily targeting large institutions. Validators are responsible for verifying, ordering, and finalizing on-chain transactions, and are typically mature organizations with global operational capabilities. Tempo was incubated by Stripe and Paradigm, launched its private testnet in September 2025, and closed a $500 million Series A funding round in October at a valuation of approximately $5 billion. Recently, Tempo introduced its “Agent Payments” protocol—executed by AI agents—and has attracted infrastructure integrations including RedStone.