| # Validation of the local reference candidate | |
| ## Current audit corrections, November 3, 2026 | |
| The newly built candidate is `ice-reference.duckdb`: 26,226,688 bytes, | |
| SHA-256 `c0c6f79bea8ad54e84c29103a7d854b68a381d931e104e2a3ccc03c1c80d70a5`. | |
| The original database and manifest remain preserved. Each table now has its own | |
| accurate unit in the source lock, README, HF card, dictionary and `_metadata`. | |
| All four source tables and added row ordinals are unchanged. `_provenance`, | |
| `_geometry_metadata` and `_columns` are also unchanged; embedded descriptions and | |
| build timestamps are the intended metadata changes. | |
| Eleven repository regression tests passed. They include optimized-Python smoke | |
| failure cases, report no-clobber behavior, recursive budget accounting and a | |
| disappearing WAL. The build now uses Parquet `file_row_number` and verifies its | |
| association with every stored row. Validation-only reports use an explicit new | |
| `--report` path and exclusive creation. Automatic extension installation is disabled. | |
| The build ran in existing WSL tmpfs with the unchanged 128 MiB working cap and | |
| 512 MiB physical reserve. Copy-back preserved at least 128 MiB on Windows. | |
| Existing source bytes/pins were reverified; no source acquisition or install ran. | |
| The corrected artifact passed exact source checks and a read-only comparison | |
| against all prior rows, including raw WKB. Additional checks confirmed EPSG:4269, | |
| 265 five-digit ZIPs, nine ZIP+4 values, one NULL ZIP, and no duplicate office | |
| four-column keys. | |
| Python Datapond 0.1.5 / DuckDB 1.5.6 and R Datapond 0.1.0 / DuckDB 1.5.5 passed | |
| on this new artifact through localhost, with `PYTHONOPTIMIZE=2`. Fresh evidence | |
| is in `evidence/audit-fix-*.json`; earlier receipts remain preserved. | |
| The two companions' acquisition, safety and safety-test files are byte-identical, | |
| closing the corresponding unread-code condition in Claude's source review. | |
| The owner independently reviewed the implementation diff and the exact test/build/client scope. The original candidates remain archived separately. | |
| The initial independent Claude source review completed under included Max usage and identified these corrections. Final corrected-source review is required before publication. These validation claims distinguish executed local checks from that separate source review. Public URL verification is recorded after upload; registry approval or merge is separate. | |