Autonomous Agents Need Proof, Not Promises
Every organisation running autonomous agents is about to hit the same wall. The agents will do real things: send emails, move money, mutate infrastructure, talk to customers. And when someone asks "what did your agents actually do, and can you prove it?" the honest answer is almost always a dashboard screenshot and a log file.
Logs are claims. Evidence is proof.
That gap is the reason we built WitnessOS, and this week it crossed a line worth writing about: E4 anchored receipts are now live in production. Externally timestamped, revocation-verified evidence for every governed agent action, re-verifiable offline by anyone with zero trust in the operator.
This post is the technical story: the evidence ladder, what E4 actually means, and why we think "anchored" is where agent governance stops being theatre.
