Archive smoke round-3 Logbook row (tail 26→27)

logbook-spool/5d9c36bfa61b6dd4c387d1f05493b83b316739c1c109acb224d8158a78bcf3cd.json

@@ -0,0 +1 @@
+{"artifact_location":null,"build_id":"populace-us-2024-stacked-f001-s578-asec1688-acs15316-20260807T195238Z-a8371572","code_pin":"2cdebe97c2cb2fb9ceded8229e0eac5fe7c93ad1","cost_usd":null,"disposition":"failed","gate_verdicts":{"pipeline_error":{"receipt":"local://~/PolicyEngine/_buildo-runtime/out/smoke-f001-verify/logbook-receipts/populace-us-2024-stacked-f001-s578-asec1688-acs15316-20260807T195238Z-a8371572/error.json#/error_type","verdict":"error"}},"identity_digest":"4a4fa930ea0006afe2951e13653a439bb2446d9fac2ef3f76e8ec3c54557dc5b","input_pins_digest":"59587db52a879614fa55989c47b30bfe689e4c035296c306bf788e781670b682","phases_reached":["attempt_started","configured","inputs_verified","sources_loaded","assembled","source_prepared","gap_filled","error"],"pipeline":"us-stacked-pool","prediction_id":null,"prev_row_digest":"f3cffe9403ae4c0fc6c0142b070eab84bfb30f1d79ce6f82b46f092a2f679b61","row_digest":"5d9c36bfa61b6dd4c387d1f05493b83b316739c1c109acb224d8158a78bcf3cd","rung":"f001","seed":578,"ts":"2026-08-07T19:52:38.128902Z","wall_seconds":1142.094794250006}

logbook.jsonl

@@ -24,3 +24,4 @@
 {"artifact_location":null,"build_id":"populace-us-2024-pool-inc2-run5","code_pin":"edc298dd","cost_usd":122,"disposition":"failed","gate_verdicts":{"terminal":{"attempt_count":5,"cost_basis":"source approximate aggregate total (~$122)","identity_derivation":"sha256(canonical_json(synthetic_identity_material))","input_pins":{"acs_household":{"sha256":"8281008e53de98f0ef81e7a2ee5a8725991dda1ecfd2713ead73246425e515d0","size_bytes":251500587},"acs_person":{"sha256":"afdc6d90c6e2f0bab365ed32d95ba4c4d8ac651162f46ac7861295b2dc469894","size_bytes":602847146},"acs_rent_donor":{"sha256":"0b319b496f19a6913066f9c5ea572edfda3d78a187be6f375846617d0b441bd4","size_bytes":472220686},"asec_raw_stage":{"sha256":"7c4d162622e309b1eb5d5104a3754b8c16a3ac5748cd4bcb4466ca100ea007df","size_bytes":649947635},"processed_puf":{"sha256":"7669f5b5281f20080e77204f9bd4aabfad0aa101fa283e22caf9ba8d61d4d6df","size_bytes":316939164},"puf_source_year":{"sha256":"0a7fd643edb1acc55c507db795914b41d232922be78c149b58d111f4672499df","size_bytes":126034649}},"input_pins_digest_derivation":"sha256(canonical_json(input_pins))","ledger_disposition_mapping":"failed","receipt":"source://_buildo-runtime/ledger-backfill/run_era_facts.md#run-5","salvage":"primary-QRF directory and stage profile","source_disposition":"abandoned","synthetic_identity_material":{"build_id":"populace-us-2024-pool-inc2-run5","code_pins":["edc298dd"],"identity_kind":"aggregate_no_terminal_artifact","input_pins_digest":"3460b49b48bc30e87183319dd96f18fe19b68c354e4956931f0a667a3818b691","terminal_disposition":"failed"},"terminal_rule":"no-attempt-5","timestamp_basis":"inferred lower bound: 2026-08-01T00:00:00-04:00","verdict":"failed","wall_seconds_basis":"unavailable across five attempts"}},"identity_digest":"0bc7f1cd877fbcd827276709e623b4a3cdf0a440602f7b52e956e950b38b4d36","input_pins_digest":"3460b49b48bc30e87183319dd96f18fe19b68c354e4956931f0a667a3818b691","phases_reached":["primary_qrf"],"pipeline":"us-pool-inc2","prediction_id":null,"prev_row_digest":"970a0b861c57fc6a8ee227cf6d59ecc428235fd6f615b8dcd0252d05d9044f22","row_digest":"482ba1b23e741d4d8513b8b0da65eceacf65a48b1af583fe74bcb007c4d939de","rung":"f100","seed":null,"ts":"2026-08-01T04:00:00.000000Z","wall_seconds":null}
 {"artifact_location":null,"build_id":"populace-us-2024-pool-inc2-run6","code_pin":"9a4dea7f","cost_usd":65,"disposition":"superseded","gate_verdicts":{"terminal":{"attempt_count":7,"cost_basis":"source approximate aggregate total (~$65)","identity_derivation":"sha256(canonical_json(synthetic_identity_material))","input_pins":{"acs_household":{"sha256":"8281008e53de98f0ef81e7a2ee5a8725991dda1ecfd2713ead73246425e515d0","size_bytes":251500587},"acs_person":{"sha256":"afdc6d90c6e2f0bab365ed32d95ba4c4d8ac651162f46ac7861295b2dc469894","size_bytes":602847146},"acs_rent_donor":{"sha256":"0b319b496f19a6913066f9c5ea572edfda3d78a187be6f375846617d0b441bd4","size_bytes":472220686},"asec_raw_stage":{"sha256":"51e9fafcd6f16140018fa90c7afbeb6d79008bfc8c122e437d23a399b30553fe","size_bytes":653410492},"processed_puf":{"sha256":"7669f5b5281f20080e77204f9bd4aabfad0aa101fa283e22caf9ba8d61d4d6df","size_bytes":316939164},"puf_source_year":{"sha256":"0a7fd643edb1acc55c507db795914b41d232922be78c149b58d111f4672499df","size_bytes":126034649}},"input_pins_digest_derivation":"sha256(canonical_json(input_pins))","phase_precision":"qrf_transferred denotes the banked QRF transfer; the full ACS transfer was not banked","planned_code_pin":"8ac0d7e0","receipt":"source://_buildo-runtime/ledger-backfill/run_era_facts.md#run-6","related_prediction_ids":["p001","p002"],"superseded_by":"populace-us-2024-pool-inc2-run7","synthetic_identity_material":{"build_id":"populace-us-2024-pool-inc2-run6","code_pins":["9a4dea7f"],"identity_kind":"aggregate_no_terminal_artifact","input_pins_digest":"59587db52a879614fa55989c47b30bfe689e4c035296c306bf788e781670b682","terminal_disposition":"superseded"},"timestamp_basis":"first attempt dispatch at 2026-08-03 07:28 ET","verdict":"superseded","wall_seconds_basis":"inferred span through deliberate stop around 2026-08-04 05:10 ET"}},"identity_digest":"0fe8096ef4fb4bc69059368a3acace0d74d9918fdbb2b2595fe7ee3d59996478","input_pins_digest":"59587db52a879614fa55989c47b30bfe689e4c035296c306bf788e781670b682","phases_reached":["assembled","qrf_transferred"],"pipeline":"us-pool-inc2","prediction_id":"p001","prev_row_digest":"482ba1b23e741d4d8513b8b0da65eceacf65a48b1af583fe74bcb007c4d939de","row_digest":"568338e206af0fa7d6fbecd2a54c513264838932504d9b8576f127f1fc1d7e77","rung":"f100","seed":null,"ts":"2026-08-03T11:28:00.000000Z","wall_seconds":78120}
 {"artifact_location":"local://_buildo-runtime/out/inc2-pool-run7/","build_id":"populace-us-2024-pool-inc2-run7","code_pin":"1c1fc717","cost_usd":47.5,"disposition":"failed","gate_verdicts":{"agreement":{"checked_pairs":131,"manifest_failure_message_count":108,"receipt":"local://_buildo-runtime/out/inc2-pool-run7/agreement.json","receipt_sha256":"2e32de4acd1eec16277eb1be0facf8277e82d947d6b9fbcd9de7032ad5c2aea6","related_prediction_ids":["p005","p006","p007","p008"],"source_summary_failure_count":104,"verdict":"failed"},"terminal":{"attempt_count":3,"base_checkpoint_identity":"b1c3f8862dbcd7f9e8a20fdd25419ea7b7465f130769a3433a91bff2b0f4d64a","cost_basis":"midpoint of source approximate residual range $40-$55","cost_estimate_method":"midpoint","cost_source_range_usd":[40,55],"identity_derivation":"terminal pool artifact sha256","initial_code_pin":"ea12600e","input_pins":{"acs_household":{"sha256":"8281008e53de98f0ef81e7a2ee5a8725991dda1ecfd2713ead73246425e515d0","size_bytes":251500587},"acs_person":{"sha256":"afdc6d90c6e2f0bab365ed32d95ba4c4d8ac651162f46ac7861295b2dc469894","size_bytes":602847146},"acs_rent_donor":{"sha256":"0b319b496f19a6913066f9c5ea572edfda3d78a187be6f375846617d0b441bd4","size_bytes":472220686},"asec_raw_stage":{"sha256":"51e9fafcd6f16140018fa90c7afbeb6d79008bfc8c122e437d23a399b30553fe","size_bytes":653410492},"processed_puf":{"sha256":"7669f5b5281f20080e77204f9bd4aabfad0aa101fa283e22caf9ba8d61d4d6df","size_bytes":316939164},"puf_source_year":{"sha256":"0a7fd643edb1acc55c507db795914b41d232922be78c149b58d111f4672499df","size_bytes":126034649}},"input_pins_digest_derivation":"sha256(canonical_json(input_pins))","receipt":"source://_buildo-runtime/ledger-backfill/run_era_facts.md#run-7","terminal_code_pin":"1c1fc717","timestamp_basis":"first attempt dispatch at 2026-08-04 04:18 ET","verdict":"failed","wall_seconds_basis":"inferred span through final verdict at 2026-08-04 19:06 ET"}},"identity_digest":"d5fdb55aaf8d37857b0ef8760526fa76cb0231c6c773efb12f15f022cdd8bdd6","input_pins_digest":"59587db52a879614fa55989c47b30bfe689e4c035296c306bf788e781670b682","phases_reached":["assembled","transferred","simulated","publication","agreement"],"pipeline":"us-pool-inc2","prediction_id":"p005","prev_row_digest":"568338e206af0fa7d6fbecd2a54c513264838932504d9b8576f127f1fc1d7e77","row_digest":"f3cffe9403ae4c0fc6c0142b070eab84bfb30f1d79ce6f82b46f092a2f679b61","rung":"f100","seed":0,"ts":"2026-08-04T08:18:00.000000Z","wall_seconds":53280}
+{"artifact_location":null,"build_id":"populace-us-2024-stacked-f001-s578-asec1688-acs15316-20260807T195238Z-a8371572","code_pin":"2cdebe97c2cb2fb9ceded8229e0eac5fe7c93ad1","cost_usd":null,"disposition":"failed","gate_verdicts":{"pipeline_error":{"receipt":"local://~/PolicyEngine/_buildo-runtime/out/smoke-f001-verify/logbook-receipts/populace-us-2024-stacked-f001-s578-asec1688-acs15316-20260807T195238Z-a8371572/error.json#/error_type","verdict":"error"}},"identity_digest":"4a4fa930ea0006afe2951e13653a439bb2446d9fac2ef3f76e8ec3c54557dc5b","input_pins_digest":"59587db52a879614fa55989c47b30bfe689e4c035296c306bf788e781670b682","phases_reached":["attempt_started","configured","inputs_verified","sources_loaded","assembled","source_prepared","gap_filled","error"],"pipeline":"us-stacked-pool","prediction_id":null,"prev_row_digest":"f3cffe9403ae4c0fc6c0142b070eab84bfb30f1d79ce6f82b46f092a2f679b61","row_digest":"5d9c36bfa61b6dd4c387d1f05493b83b316739c1c109acb224d8158a78bcf3cd","rung":"f001","seed":578,"ts":"2026-08-07T19:52:38.128902Z","wall_seconds":1142.094794250006}

packages/microcosm-build/tests/test_logbook_backfill.py

@@ -16,23 +16,32 @@
 ARCHIVE = ROOT / "logbook.jsonl"
 SPOOL = ROOT / "logbook-spool"
 
+# The archive is append-only: rows after the seed arrive one per real build
+# attempt. The #628 backfill seed itself is immutable, so its fidelity pins
+# apply to the archive's first 26 rows forever — never to the whole file.
+SEED_ROW_COUNT = 26
+
 
 def test_backfill_archive_and_operator_spool_match_end_to_end() -> None:
     rows = load_logbook_file(ARCHIVE)
     spool_rows = load_spool_rows(SPOOL)
 
-    assert len(rows) == 26
+    assert len(rows) >= SEED_ROW_COUNT
     assert rows == spool_rows
-    assert [row.build_id for row in rows] == [
-        row.build_id for row in sorted(rows, key=lambda row: (row.ts, row.build_id))
-    ]
-    assert Counter(row.disposition for row in rows) == {
+    seed = rows[:SEED_ROW_COUNT]
+    assert Counter(row.disposition for row in seed) == {
         "published": 22,
         "certified": 1,
         "failed": 2,
         "superseded": 1,
     }
-    assert {row.rung for row in rows} == {"f100"}
+    assert {row.rung for row in seed} == {"f100"}
+    assert [row.build_id for row in seed] == [
+        row.build_id for row in sorted(seed, key=lambda row: (row.ts, row.build_id))
+    ]
+    # Post-seed rows extend the chain in order; every row names its parent.
+    for parent, child in zip(rows, rows[1:], strict=False):
+        assert child.prev_row_digest == parent.row_digest
 
 
 def test_backfill_contains_all_hf_releases_and_three_run_era_rows() -> None:
@@ -55,7 +64,10 @@ def test_backfill_contains_all_hf_releases_and_three_run_era_rows() -> None:
 
 
 def test_run_era_backfill_marks_inferences_and_prediction_links() -> None:
-    run5, run6, run7 = load_logbook_file(ARCHIVE)[-3:]
+    by_build_id = {row.build_id: row for row in load_logbook_file(ARCHIVE)}
+    run5, run6, run7 = (
+        by_build_id[f"populace-us-2024-pool-inc2-run{n}"] for n in (5, 6, 7)
+    )
 
     assert [run5.cost_usd, run6.cost_usd, run7.cost_usd] == [122, 65, 47.5]
     assert [run5.prediction_id, run6.prediction_id, run7.prediction_id] == [