# Navigation native preparation evidence — 2026-09-13

The [source and evidence archive](experiments/navigation-native-preparation-e124029-20260913/README.md) preserves actual comparator and migration preparation results at source `e1240295bd114d23d3f67a69e6b38bdb2e25bb0d`, with exact-byte provenance in its [manifest](experiments/navigation-native-preparation-e124029-20260913/manifest.json).

Three native helper builds passed. Eight executions include the preserved initial migration failure, the corrected migration pass, oracle self-checks, four unchanged fixture admissions, and the independently authored six-token source expectation matching the whole-Project/exact-SourceBundle comparator. Every execution records unchanged inputs. The migration correction admits only four specified owner-qualified empty description additions while preserving original comments and strings.

This is preparation evidence, not native GUI acceptance or a published release. Executables and dependencies are hash-bound in receipts but omitted from this source archive. Reproduction requires the identified source, matching dependency artifacts and toolchain, plus path adaptation of the retained commands. Desktop interaction, Undo/Redo, preview cancellation/freshness, saving and reopen behavior remain outside these results.