diff --git a/docs/experiment-6-serving-receipt.md b/docs/experiment-6-serving-receipt.md
index 26342ce..82558b5 100644
--- a/docs/experiment-6-serving-receipt.md
+++ b/docs/experiment-6-serving-receipt.md
@@ -47,6 +47,16 @@ disk-full crash (reflink snapshot divergence), and a 6.6h merge-tail compaction.
   07:04:58Z; rebuild + connect fits with >24h margin.
 - **Subscribe surface under live load** — verify after replay starts.
 
+## addendum 22:40Z — live ingest + subscribe proven
+
+The `Compactor.rebuild` finished well under the ~4h extrapolation. At 22:35Z:
+`upstream seq 32,408,817,638` (advancing from the 32,408,688,748 resume point),
+`events this run 129,793`, appended 334,817. **`/subscribe` handshakes 101 and
+streams decoded Jetstream V2 JSON events** (verified by raw websocket read:
+`{"did":"did:plc:…","time_us":1785882887602279,"kind":"commit",…}`). Every
+surface of a Jetstream V2 instance is now demonstrated: list, read-back,
+subscribe, live ingest. Remaining: replay catch-up to the firehose head.
+
 ## honest footnotes
 
 - `merge discovery: skipped by configuration` — the compose sets