# Data provenance — F4-dev-01

All files under `data/sources/` are plain-text extracts of publicly accessible documents, prepared by the task designer on 2026-10-30 (UTC). Each extract begins with a provenance header (title, authors, bibliographic record, retrieval URL and UTC, SHA-256 of the retrieved HTML, license, list of included and omitted sections). Only the excerpts needed for the task are reproduced; everything else is omitted. Tables are rendered one row per line with ` | ` between cells; in regression tables, the line following a coefficient row holds the standard errors in parentheses as printed in the original.

| file | document | retrieval UTC | license | SHA-256 of the extract |
|---|---|---|---|---|
| `sources/statcan-daily-lfs-2026-09.txt` | Statistics Canada (2026-10-09). The Daily — Labour Force Survey, September 2026. Catalogue no. 11-001-X. https://www150.statcan.gc.ca/n1/daily-quotidien/261009/dq261009a-eng.htm | 2026-10-30T03:25:42Z | Statistics Canada Open Licence | 7ea5fec57c87874ff5ee09a8304927a1aaed5a1837db5312fab9f7a2d5f2d0bb |

Rights: The Statistics Canada release is reproduced under the Statistics Canada Open Licence (https://www.statcan.gc.ca/en/reference/licence) with attribution. No numbers were altered; where a table was re-set for legibility (RESEA Tables 2-3, London Table 3 header) the extract header says so.