Identity, checks and evidence

Scientific identity

One endpoint sensitivity experiment, two separate cohorts

• Receiver: H01W1 hydrophone.
• Frequency: 63 Hz for all primary comparisons.
• Source depth: 6 m.
• Quantity: coherent RAM transmission loss at the exact receiver endpoint, in dB.
• Changed input: only the temporal representation of temperature and salinity from GLOBAL_ANALYSISFORECAST_PHY_001_024.
• Held fixed within each row: source and receiver geometry, bathymetry, bottom, RAM numerics, endpoint bracket and extraction.
• Pilot: four primary paths. The July sentinel is excluded from pilot classification.
• Follow-up: twelve prospectively frozen primary paths, one per calendar month. No reserve was used.

Visualizer and validation

The report reuses the accepted two-way comparison design

• Type: derived.comparison_table.
• Visualizer: visualizer.comparison_table.v1.
• Four instances are shown separately: pilot P1D minus P1M, pilot PT6H minus P1D, follow-up P1D minus P1M, and follow-up PT6H minus P1D.
• Each instance has a square paired-value scatter with identical axes and an equality line.
• The second view plots the declared signed difference against exact WGS84 source range.
• Both views share one selected case and expose exact values, time, range, match keys and source table.
• Static tables show the same values when JavaScript is unavailable.
• The report introduces no new scientific type or visualizer.

Numerical checks

• Pilot: 18 of 18 solves and raw fields verified. Six monthly values reproduced exactly.
• The two extreme pilot daily-minus-monthly pairs reproduced exactly in the confirmatory repeat.
• Follow-up: 36 of 36 solves and raw fields verified. Twelve monthly values reproduced exactly.
• All exact PT6H inputs, selected times, hashes and prepared environments were preserved in the source packages.
• No RAM call or ocean download was made to build this report.

Interpretation boundary

Observations do not yet choose among the model fields

The report-source review found no tight subsurface profile match for the two declared extreme follow-up paths. The closest useful Argo profile for primary_10 was about 46.7 km from the path and 41.3 hours after the event. Primary_11 had no useful nearby profile. Hourly or four-hourly IMOS/Himawari SST can assess surface consistency, but not the full sound-speed profile.

Evidence index

Hash-pinned source files

1. data/derived/ha01-ocean-temporal-sensitivity/v1/temporal-deltas.csv
   SHA-256 3594ce195fc3a13af228ca9fded70f630709e032731f34abe2eeeab6be94e42c
2. data/derived/ha01-ocean-temporal-sensitivity/v1/verification.json
   SHA-256 5371bb1133eea57bc528836256e8b6b89ffac80bc9baaae978fbf9ef53166077
3. data/derived/ha01-ocean-temporal-sensitivity/v1/REPORT.md
   SHA-256 ec2491ecdb86872160723b166a12e049690695adfbefbb521ea2ab5d22c426b1
4. data/derived/ha01-ocean-temporal-sensitivity/v1/temporal-deltas-63hz.svg
   SHA-256 a2ab6199a4ab685a38b2969b69de56d0be4a6f334c7e9a760970d4c8a5ef14d6
5. data/derived/ha01-ocean-temporal-followup/v1/temporal-deltas.csv
   SHA-256 3dd5c88113f090639752eb788fc8320afee602e398d5058855b14244dc2c035b
6. data/derived/ha01-ocean-temporal-followup/v1/verification.json
   SHA-256 91870de5f5e876dc543fd5db1a6ed363b5174c278ce46dcb6652fd20354acd5c
7. data/derived/ha01-ocean-temporal-followup/v1/cohort-comparison.json
   SHA-256 2aa7f680b96ab7650fdb387704a2dc2be3ebea3f7eea8209d4b359a55ed86cc7
8. data/derived/ha01-ocean-temporal-followup/v1/REPORT.md
   SHA-256 15935c9ce08f2e843cd51ed01902a9d81aa8d42981ef820d00a22f736f5fc83a
9. data/derived/ha01-ocean-temporal-followup/v1/temporal-deltas-63hz.svg
   SHA-256 720ad9c4d8c6298d23ba59794c0daa1a2aeb211346599492109d232d8e9ddf47
10. analysis/ha01-ocean-temporal-sensitivity/v1/protocol-source.md
    SHA-256 272672d6217d30627d47b2397db1dc7809f4f4c8b518d1521d9a85d46cb41ef2
11. analysis/ha01-ocean-temporal-followup/v1/protocol.json
    SHA-256 e57f91dd6176a33206696019c6932d55d8250ca374b36cc3d24e2caab8a79f92
12. analysis/ha01-ocean-temporal-followup/v1/frozen-cohort.csv
    SHA-256 2822324d712ee5a45cd59a25fe86760d3bc2453010bbe46344dd1cfca6c9af8c
13. analysis/ha01-ocean-observational-validation/v1/report-source.md
    SHA-256 2557c7e285ace87bc589cad832f289e345df175045f99486d387bec9a5e4ecc2
14. analysis/ha01-ocean-observational-validation/v1/manifest.json
    SHA-256 83d93599797a2cd469a467a8509e4c54fa6fdc2bc88f6dfbfa9d076c67990c21
15. desired-state/representations.yaml
    SHA-256 f10093361997422ab26679fdc1ec1c8bcf6db1ec1918fa619208d2aaab5f7c34

Machine-readable version: evidence-index.json.