35538e3b5b
Read 0x821A0AD0, the debriefing, end to end, resolving every call and string in code order. The word-B bit-setter sub_8219F2E8 is its FIRST call, before anything else; the function makes 44 calls and references exactly two strings, DEBRIEFING and BASE_INFO. No Time and no Points anywhere on this path - not in the debriefing, not in the bit-setter. Section 5.3's expectation that clearing a challenge stage records its metric alongside the bit is not supported by the code that clears it. The reach of that negative: the debriefing function and its directly-called bit-setter, both read whole; it does not rule out a store deeper inside one of the other 43 callees. 0x8219F670 turns out to be an online-state predicate: 88 bytes, no strings, reads the singleton, tests bit 1 of [0]+60, and if set passes [0]+64 to 0x824A9C90 and returns whether the result is 2. A connection or sign-in check, not a record store. The useful find is 0x8219F460, 368 bytes and self-recursive, which drains a ring based at r29+320 with element base +4, capacity +8, head +12 and count +16. Those are the corpus's documented message-bus offsets exactly - BACKLOG records sub_82175C20(bus+4, &msg) as a ring-buffer append with capacity +8, head +12, count +16 - and sub_82175C20 is the very notifier section 5.6 found the word-B writer calling with bit + 64. So the open question "ring-buffer PUSH, no handler" now has a candidate drainer with a byte-for-byte matching field layout, reached from the debriefing. What is NOT shown is that these are the same ring instance. The push targets bus+4, this drain targets r29+320. Matching offsets prove a shared container shape, not a shared object, and the identity needs the two base pointers tied together. All seventeen artefacts byte-identical.