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golangLAKEHOUSE/reports/cutover/gauntlet_2026-05-02/parity/materializer_parity.md
root 5d3996b51d STATE_OF_PLAY: Rust is not maintenance-only as of 2026-05-02 
Frames the Rust system accurately — it's receiving parity work +
infrastructure (Lance gauntlet, sidecar drop, observability parity),
not just security fixes. Points readers at lakehouse/STATE_OF_PLAY.md
+ docs/ARCHITECTURE_COMPARISON.md for the cross-runtime view.

Also commits today's parity probe report regenerations (5/5 still
32/32 post-Lance work).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02 22:24:14 -05:00

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Materializer parity probe — Bun vs Go

Date: 2026-05-03T03:13:11Z Bun: /home/profit/lakehouse/scripts/distillation/build_evidence_index.ts Go: ./bin/materializer

Identical data/_kb/ source → both runtimes' materializer. Match = JSONL byte-equal after normalizing provenance.recorded_at (per-run wall clock) + sorted line order (dedup ordering).

Tally: 2 match · 0 diff (out of 2 stems)

No divergences — on-wire JSON parity holds.