docs(perception): record joint startup proof and remaining clock wait

2026-09-02 21:16:03 +03:00
parent 48835a0499
commit 35d28418f3
3 changed files with 152 additions and 3 deletions
@@ -869,3 +869,21 @@ and a fixed2s lead do not establish Worker readiness. Next gate separates two-si
 clock warmup from source-anchor activation before1x starts; after start the source
 timeline remains immutable through outages. No gate widening, backlog replay,
 standalone or Stage3 promotion. [Evidence and rejected attempts](../../experiments/perception/PERCEPTION_STREAM_STAGE2_CROSSHOST_GRAPH_2026-09-02.md).
+
+## Stage 2 increment 16: joint startup before immutable 1x activation (2026-09-02)
+
+Pre-start clock reports carry a null anchor and warm both observation windows.
+Version2 replies bind responder bounds and accepted anchor to the issued challenge.
+Source checks both current intervals, ages peer evidence through ACK transit, obtains
+explicit anchor acceptance and a data grant before startup. A lost ACK cannot create
+a different anchor; missing the agreed start fails rather than silently retiming input.
+The existing5ms/2s/500ppm/50us budgets and lease/data authority separation remain intact.
+
+The single32-frame GPU canary now admits frame0, but is not realtime-qualified:
+8 results,1 input-gap discard,9 WAIT and14 synchronization skips. All55 six-timestamp
+exchanges independently reconstruct; running uncertainty5.031–5.667ms causes a real
+clock WAIT without an RPC error, GPU telemetry loss or model restart. More samples
+inside the same2s horizon would not remove the measured WAIT.241 local/198 Worker
+tests PASS,129 measured source hashes match code48835a0. Next investigate control-loop
+scheduling/transport before another full-graph qualification, without budget widening.
+[Detailed evidence](../../experiments/perception/PERCEPTION_STREAM_STAGE2_JOINT_START_2026-09-02.md).