Verified field witness without contaminating permanent placement truth. v1.1 requires a fresh node heartbeat and a fresh device witness from the actual job node before evidence can advance.
1 · Job
Truth guardrails
Observation ACCEPTED
Permanent placement during test NO
Asset binding mutation NO
Asset-location inference SUPPRESSED
2 · Test
3 · Evidence
Backend gate: fresh node heartbeat + fresh observation + witness node must equal this job node.