Proving what an agent did
Most agent platforms can tell you what their agent did. These are about the harder thing: what it can still show when somebody who does not trust it asks.
A log says what happened. An audit trail survives someone doubting it. The gap between those two is where most agent evidence fails.
Most of these are excellent at tracing. Tracing and proving are different jobs, and the difference only shows up when someone disputes a record.
A record of one action an agent took, carrying enough of the outside world in it that somebody else can check the claim without trusting you.
Three words used as synonyms in AI governance copy. They describe different guarantees, and one of them is usually a claim nobody can support.
Applicable since 2 August 2026. It is narrower than most coverage suggests, and the first useful question is whether it applies to you at all.
Three verdicts, the fields each carries, and the precedence that decides whether a record can point at anything at all. Read out of the code, not illustrated.