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Release v0.29.0 — offset detector + false_trigger_reason + BlastMate serials (0.27.0→0.29.0) #36

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serversdown merged 14 commits from dev into main 2026-09-07 15:57:38 -04:00
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@@ -154,8 +154,8 @@ is the discriminator — and it is what the field experience predicts.
| runs of >=3 consecutive | — | 29 | | runs of >=3 consecutive | — | 29 |
| runs of 1-2 events (noise) | — | 69 | | runs of 1-2 events (noise) | — | 69 |
Units with a sustained pedestal: **BE9558, BE10895, BE11007, BE11529, BE12599, Units with a sustained pedestal: **BE9558, BA10895, BE11007, BE11529, BE12599,
BE13117, BE18003, BE18438**. BE10895 and BE18003 were invisible to v1. BE13117, BE18003, BE18438**. BA10895 and BE18003 were invisible to v1.
**The affected channel is most often Vert**, which v1 got wrong — it named **The affected channel is most often Vert**, which v1 got wrong — it named
whichever axis had the largest peak. BE13117 and BE18438 are both Vert faults. whichever axis had the largest peak. BE13117 and BE18438 are both Vert faults.
@@ -226,7 +226,7 @@ signal from a tuned one:
**BE9558, BE11529, BE12599, BE13117, BE18438.** **BE9558, BE11529, BE12599, BE13117, BE18438.**
Unchanged across a 2x threshold range. BE11007 and BE10895 drop out — the Unchanged across a 2x threshold range. BE11007 and BA10895 drop out — the
spread test identifies them as transients, not pedestals. spread test identifies them as transients, not pedestals.
The 11% headline happens to match v1's, but the reasoning and the unit list The 11% headline happens to match v1's, but the reasoning and the unit list
@@ -612,7 +612,7 @@ It rejects **113 of the 600 channel-rows with |pre| >= 0.025 (18.8%)**, and the
rejections are not random — 92 of them fall across 41 unit-channels currently rejections are not random — 92 of them fall across 41 unit-channels currently
labelled NEGATIVE. Four would become sustained positives under an labelled NEGATIVE. Four would become sustained positives under an
amplitude-only >=3-consecutive rule: **BE12599|Long (run of 8), BE18003|Vert amplitude-only >=3-consecutive rule: **BE12599|Long (run of 8), BE18003|Vert
(4), BE10895|Vert (3), BE12844|Tran (3).** Until this is re-cut, the fleet label (4), BA10895|Vert (3), BE12844|Tran (3).** Until this is re-cut, the fleet label
is **three-state — POSITIVE / NEGATIVE / SPREAD-REJECTED(unknown)** — and the is **three-state — POSITIVE / NEGATIVE / SPREAD-REJECTED(unknown)** — and the
third state should be excluded from both TP and FP counts rather than silently third state should be excluded from both TP and FP counts rather than silently
scored as healthy. Every precision figure computed against the two-state label, scored as healthy. Every precision figure computed against the two-state label,
@@ -625,7 +625,7 @@ on 39 of its 1,666 histogram-observed days (**2.3%**). Any statement of the form
"the fault was absent before date X" that rests on waveform coverage alone is "the fault was absent before date X" that rests on waveform coverage alone is
much weaker than its event count suggests. much weaker than its event count suggests.
### BE10895 — reclassified (see also §4) ### BA10895 — reclassified (see also §4)
Previously dismissed as a transient. The histogram record shows its **Vert** Previously dismissed as a transient. The histogram record shows its **Vert**
quiet-minute floor at 0.005 on 62/62 qualifying files from 2023-07-07, then quiet-minute floor at 0.005 on 62/62 qualifying files from 2023-07-07, then
@@ -651,7 +651,7 @@ BE9557|Tran 2021-06-28, BE9557|Vert 2025-06-12.
### Still open in this section ### Still open in this section
- **The 11 thin-coverage units were not screened** (BE10202, BE11462, BE13779, - **The 11 thin-coverage units were not screened** (BE10202, BE11462, BE13779,
BE15760, BE15957, BE16754, BE16758, BE8081, BE8626, BE9229, BE9887 — each BE15760, BA15957, BE16754, BE16758, BE8081, BE8626, BA9229, BE9887 — each
under 20 waveform events, several with hundreds of histograms). This is the under 20 waveform events, several with hundreds of histograms). This is the
population most likely to hold a previously unknown offset, and it is the one population most likely to hold a previously unknown offset, and it is the one
slice of the plan that did not run. BE11462 was incidentally scored clean by slice of the plan that did not run. BE11462 was incidentally scored clean by
@@ -662,6 +662,28 @@ BE9557|Tran 2021-06-28, BE9557|Vert 2025-06-12.
--- ---
### ⚠ Serial prefixes — four of these units are BlastMates, not MiniMates
Corrected 2026-09-06, after Brian queried "BA10895?" against a report that
said BE10895. He was right. The BW filename encodes the serial **number
only** — `L895` -> 10895 — and every offset scanner synthesised the family
prefix as `"BE"`. Four of the 43 archive units are **BA** (BlastMate, the
MiniMate Plus's bigger sibling; same Series III, byte-identical data):
**BA9229, BA10060, BA10895, BA15957.**
Read off the file bodies, which carry the serial verbatim. No analysis
changed — grouping was always on the numeric part, and no unit number maps
to two serials — but every earlier reference to "BE10895" and the other
three is a label error and has been corrected throughout this document.
The same assumption was live in two production sites and is fixed
(`sfm/waveform_store.py`, `minimateplus/client.py`): the store would have
filed a BlastMate under a unit that does not exist, and the monitor-log
decoder lost the geo threshold along with the serial. See commit `9ceff65`.
---
## 9. Chronology ## 9. Chronology
| date | event | | date | event |
@@ -682,5 +704,6 @@ BE9557|Tran 2021-06-28, BE9557|Vert 2025-06-12.
| 2026-09-04 | **Histogram corpus scanned** — 63,505 of 63,535 files, 43 units, 77.9M intervals (9.7x the waveform corpus). `scratch/offset_hist_scan.py`. | | 2026-09-04 | **Histogram corpus scanned** — 63,505 of 63,535 files, 43 units, 77.9M intervals (9.7x the waveform corpus). `scratch/offset_hist_scan.py`. |
| 2026-09-04 | Absolute-floor statistic **retired**: 66% of its discrimination is a day/site confound (other-channels-only AUC 0.746 vs 0.872). Zero-fraction shown **structurally impossible** — the device clamps every interval peak at >= 1 count. | | 2026-09-04 | Absolute-floor statistic **retired**: 66% of its discrimination is a day/site confound (other-channels-only AUC 0.746 vs 0.872). Zero-fraction shown **structurally impossible** — the device clamps every interval peak at >= 1 count. |
| 2026-09-04 | Site-quiet-gated cross-channel differential established: **BE18438 Vert, BE9558 Tran+Long**, threshold-insensitive over a 2.3x span. Finds only **2 of the 5** confirmed units — leakage into the histogram floor is bimodal (0.9 to 0.02), so a negative result carries almost no information. Per-channel attribution **not** established (channel-scramble p = 0.769). | | 2026-09-04 | Site-quiet-gated cross-channel differential established: **BE18438 Vert, BE9558 Tran+Long**, threshold-insensitive over a 2.3x span. Finds only **2 of the 5** confirmed units — leakage into the histogram floor is bimodal (0.9 to 0.02), so a negative result carries almost no information. Per-channel attribution **not** established (channel-scramble p = 0.769). |
| 2026-09-04 | **BE10895 reclassified** from transient to a genuine Vert fault of a different subtype — 49.4% single-axis-dominant events, the highest in the fleet, 100% on Vert. The other six marginal units are clean. | | 2026-09-04 | **BA10895 reclassified** from transient to a genuine Vert fault of a different subtype — 49.4% single-axis-dominant events, the highest in the fleet, 100% on Vert. The other six marginal units are clean. |
| 2026-09-04 | **Defect found in `offset_scan3.py`**: its `spread <= 0.02` gate discards 18.8% of rows with \|pre\| >= 0.025, concentrated on 41 negative unit-channels; 4 would be sustained positives without it. The fleet label is three-state, not two. | | 2026-09-04 | **Defect found in `offset_scan3.py`**: its `spread <= 0.02` gate discards 18.8% of rows with \|pre\| >= 0.025, concentrated on 41 negative unit-channels; 4 would be sustained positives without it. The fleet label is three-state, not two. |
| 2026-09-06 | **Four units relabelled BA, not BE** — BA9229, BA10060, BA10895, BA15957 are BlastMates. The BW filename carries only the serial number; the family prefix must be read from the file body. Fixed in the scanners and in two production sites. |