Research: four retained contacts obstruct staged R439 helper465 isolation

research/r439-staged-retirement-boundary/COPY-LIFECYCLE.json

@@ -0,0 +1,143 @@
+{
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+  "cut_after_B_adds": 10,
+  "cut_record": 22380,
+  "exporter_stdout": "exported 27234 records, 636 frames, n 661 ZERO 0",
+  "live_temporaries_at_cut": [],
+  "negative_controls": [
+    "omitted_ERASE",
+    "COPY_before_ERASE"
+  ],
+  "note": "No native checker run: exact exported scalar records and explicit frame IDs only.",
+  "ordinary_columns": 661,
+  "record_count": 27234,
+  "records_sha256": "ea44aa047a2a9cf034de8b56b2166c49cf2dbdf9cd9ed6a20299a4f2b05ef09a",
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+}

research/r439-staged-retirement-boundary/OVERLAP.json

@@ -0,0 +1,28 @@
+{
+  "schema_version": 1,
+  "base_commit": "0b1cccf86e2f5132ed286a26ef0a681a495740ea",
+  "claim_url": "https://github.com/CrocSwap/integer-mult-bounds/discussions/1929#discussioncomment-18925854",
+  "cached_search": {
+    "searched_at": "2026-10-14T14:29:54.207295+00:00",
+    "terms": ["staged retirement", "staged isolation", "helper465", "B601", "frame507"],
+    "open_prs": {"records": 584, "fetched_at": "2026-10-14T14:27:47.108625+00:00", "complete_pagination": true},
+    "discussions": {"records": 565, "fetched_at": "2026-10-14T14:29:09.251198+00:00", "complete_pagination": true},
+    "local_records": 873,
+    "matches": 5,
+    "match_scope": "Two own-round coordination comments, PR1271 local README/TASK handoff, and this new TASK.",
+    "warnings": ["Offline cache can miss subsequent changes; no code-diff or arbitrary nested-file coverage.", "No matches is not a novelty certificate."]
+  },
+  "targeted_live_all_state_searches": [
+    {"query": "gh pr list --state all --search '\"helper465\"' --limit 30", "results": [{"pr": 1271, "state": "MERGED", "head": "3437f884a0282af6acf51a1d9ef052c3e09e697b"}]},
+    {"query": "gh pr list --state all --search '\"helper468\"' --limit 30", "results": [{"pr": 1393, "state": "MERGED", "head": "548f96032c7203953bcf3a3458b92f59b3e9261d"}]}
+  ],
+  "nearest_work": [
+    {"pr": 1128, "head": "df29b159239b79d7e451d6ddda826a73e0e50a67", "url": "https://github.com/CrocSwap/integer-mult-bounds/pull/1128", "already_established": "Two-sided restoration/dirty-column boundary floor, six rank-seven survivors.", "new_here": "Source-bound arbitrary multi-frame exact-isolation continuation obstruction at helper465 cut10; does not claim the general information-access method."},
+    {"pr": 1256, "head": "d6d5a994fcdcd8d04ec439ff988daa8f37b17ece", "url": "https://github.com/CrocSwap/integer-mult-bounds/pull/1256", "already_established": "First-single-frame restoration exclusions and helper470 two-frame construction.", "new_here": "The helper465 staged block itself passes; a four-contact continuation obstruction is independent of its length or rational frame choices."},
+    {"pr": 1271, "head": "3437f884a0282af6acf51a1d9ef052c3e09e697b", "url": "https://github.com/CrocSwap/integer-mult-bounds/pull/1271", "already_established": "All713 B cuts; helper465 necessary window10–48, explicit completion handoff.", "new_here": "Any exact isolation at the first surviving cut must modify at least one of B48/B117/B493/B601. Unrestricted suffix completion remains open."},
+    {"pr": 1393, "head": "548f96032c7203953bcf3a3458b92f59b3e9261d", "url": "https://github.com/CrocSwap/integer-mult-bounds/pull/1393", "local_path": "research/r439-helper468-late-cut/README.md", "already_established": "Single-frame helper468 cut obstruction and general rank-eight floor after B88 MOVE.", "new_here": "Different helper and a changed, arbitrary multi-frame isolation hypothesis; no enlarged helper468 census."},
+    {"pr": 1913, "url": "https://github.com/CrocSwap/integer-mult-bounds/pull/1913", "already_established": "Earlier session two-writer helper absorption, frozen and not reused.", "new_here": "No absorption or copied predecessor implementation; source-bound staged terminal-H4 contact propagation."}
+  ],
+  "alternatives_not_pursued": "The draw's nonabelian-register suggestion has extensive overlap (PR1333/1414/1491/1541 and successors); no new toy alphabet or increased seed/domain census was submitted.",
+  "limits": "Targeted all-state searches supplement local merged-package reads but are not an exhaustive theorem-priority or diff search. Exact mathematical premises, not seed differences, define this contribution. Selected artifacts and all predecessors remain unchanged."
+}