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Brandon Schneider bdc227459a feat: O_AMMR_valid strengthened + hash benchmark complete 
NS_MD.lean:
- Added QRResidualWitness structure (Q16_16 fixed-point)
- Added residual_bound_ok, basis_size_ok, orthogonality_ok predicates
- Extended O_AMMR_Node with qr_witness field
- Strengthened O_AMMR_valid: 4 conjuncts (admission + residual + basis + ortho)
- lake build: 3300 jobs, 0 errors

hash_benchmark.py (240 data points):
- Hilbert vs Morton vs xxHash
- 5 grid sizes (16^3 to 256^3), 4 trace sizes, 4 patterns

Key findings:
  Morton: 86.5% cache hit rate, 1.08µs p50, 0.512 locality
  xxHash: 30.3% cache hit rate, 0.96µs p50, 0.342 locality
  Hilbert: 27.6% cache hit rate, 2.29µs p50, 0.833 locality

Morton wins overall for spatial hash grids.
2026-05-30 15:15:33 -05:00
..
deepseek_review Correct DeepSeek review receipt attribution 2026-05-11 23:06:57 -05:00
lean_expert_agent docs(agents): project-wide AGENTS.md audit — cross-refs, baseline, contracts 2026-05-26 22:34:46 -05:00
hash_benchmark.csv feat: O_AMMR_valid strengthened + hash benchmark complete 2026-05-30 15:15:33 -05:00
hash_benchmark.json feat: O_AMMR_valid strengthened + hash benchmark complete 2026-05-30 15:15:33 -05:00