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Postcode-SIMD column provenance

For every column of the two tables, where its value comes from, what was done to it, how the build checks it, and why: follow a column to its pinned source file and the decision behind it.

Generated from commit ca5318b: package 6.1.0; schemas postcode_simd_wide_v5 (history) and postcode_simd_sspl_v5 (main); SPD 2026/2, SSPL 2026/2. Metadata only: no data values.

  • Columns: one page per column name, each table's provenance side by side where they differ
  • Pinned sources: every published file the build reads, and the columns it feeds
  • Decisions: why each column is made the way it is
  • Checks: what each build check tests

Review status

Descriptions extracted from the pinned NRS dictionaries (69): 67 approved, 2 corrected and awaiting confirmation, 0 not yet reviewed. From the SIMD 2020v2 glossary (48): 48 approved, 0 corrected and awaiting confirmation, 0 not yet reviewed; The SIMD glossary describes the 2020v2 shapefile. Its approval covers 2020v2 only: on an earlier edition's page its descriptions are 2020v2 examples, not a verification of that edition's indicators. Reviews: Codex (AI-assisted editorial review), 2026-10-02, record. Each page states the review status of its text.