OUT OFTHE STORMNEWS

Independent insurance-cost data from public records.

Data · Audit trail

Data History and Provenance

Inspect the exact source period, source-modified date, snapshot-generation date, schema version, validation status, and SHA-256 fingerprint behind each published index. Version records and confirmed corrections are retained instead of being silently replaced.

Tracked datasets
3

all currently live indexes

Version records
3

append-only snapshot fingerprints

Correction records
1

material data corrections disclosed

Manifest updated
Jul 25, 2026

dates are reported in UTC

How to read this audit trail

  • A version record is append-only. A refresh adds a new fingerprint instead of rewriting prior history.
  • SHA-256 is calculated from the exact committed normalized snapshot file.
  • Source period, source modification date, and local snapshot generation date are kept separate.
  • Confirmed material corrections identify the affected dataset, impact, resolution, and date.

Current: 2026-05-fea91bd54b23

Flood Insurance Cost Index

Expected cadence: Monthly after a complete FEMA source month is available. Open the primary source.

VersionSource periodSource modifiedSnapshot generatedCoverage and validationSHA-256
2026-05-fea91bd54b23Initial public snapshot2026-05Not supplied by sourceJul 17, 202613 national monthly periods and 53 state or territory seriesMetric definition, state coverage, policy counts, and generated CSV contracts passedfea91bd54b231e8a0e650823b25d735601041e053509729e0afae97fd53fbe2aschema flood-costs-v1 · commit 45257602

Current: 2018-2022-35e12356b704

Home Insurance Cost Index

Expected cadence: When Treasury FIO publishes a new public release. Open the primary source.

VersionSource periodSource modifiedSnapshot generatedCoverage and validationSHA-256
2018-2022-35e12356b704Initial Treasury FIO public snapshot2018-2022Not supplied by sourceJul 20, 202625,593 public 2022 ZIP rows with 2018 baselines where disclosedSnapshot fingerprint, all-row geography coverage, state coverage, and summary denominator checks passed35e12356b704fc0c4a4fb82467860b2ec5ee616aacda3b91a867986484282ae3schema fio-homeowners-v1 · commit d1fc9761

Current: 2026-04-f6dea059983b

Medicare Enrollment Index

Expected cadence: Monthly after CMS publishes a new API distribution. Open the primary source.

VersionSource periodSource modifiedSnapshot generatedCoverage and validationSHA-256
2026-04-f6dea059983bInitial CMS monthly enrollment snapshot2026-04Jul 23, 2026Jul 24, 2026National row, 56 state or territory rows, and 3,278 county rowsSource discovery, row thresholds, component totals, suppression handling, and geography reconciliation passedf6dea059983bacbe83cb1be559e0c7a941897ae7e208499fc4a6656f6e58db06schema medicare-enrollment-v1 · commit 2ffc485a

Correction ledger

This ledger covers material changes to data selection, aggregation, labeling, or published values. Editorial typo fixes are not included.

Corrected Jul 25, 2026 · home-insurance

Restored 2,327 public ZIP rows spanning 9 states; 8 of those states had been absent entirely from the derived state table.

The prior derived U.S. ZIP-row average used 23,266 of 25,593 rows and displayed $1,771. The corrected all-row average displays $1,776.

Resolution: Expanded geography coverage, exposed mapped and excluded counts, and added a zero-unmapped-row release test.

Recalculation evidence: Replay the pre-correction exclusions against the exact committed Treasury FIO normalized snapshot. Prior mapping commit d1fc9761; omitted prefixes 005, 010-099, 398-399, 885, 889, 967-968.

Find a mismatch? Include the page URL, source period, and visible value when writing to corrections@outofthestormnews.com.

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