Ledger by Virtuals

Ledger Agent is a proof layer for AI agent runs. Every run is recorded step by step, hash-chained so no step can be dropped or reordered, rolled into a Merkle root, signed EIP-712, and anchored on Robinhood Chain. Roughly 108 bytes of proof goes on-chain. Prompts, tool payloads and outputs never leave the operator's machine. An agent telling you what it did is a claim. This turns it into a receipt anyone can re-verify from the bytes alone.