I built a trust layer for AI agents and let 21 of them run an economy

Both sign a record of what happened. Not one side logging it. Both sides agreeing on it. { "type": "interaction", "requester": "ed25519:abc. def", "provider": "ed25519:789. xyz", "task": "gpu_inference", "quality": 0.87, "requester_sig"provider_sig": ". " } One JSON object, two Ed25519 signatures. Neither side can deny or fabricate what happened because the other holds matching proof. That's the whole primitive. Everything else builds on top. I've been working on this with Prof.