v0.6: 5 systems × 4 lengths × main+ablation + recipe v3 (3 seeds, Bonferroni-significant on 1s queries) + 2 pre-registered negative results

v0.5: post-mortem audit fixes — twin flag MBID-only, Dejavu ref_stop, score.py no_match denominator, NAFP stable tie-break

v0.4: add NAFP (4th system); new metrics (MRR, top1_near); Panako retune; refreshed baseline table

v0.3: refreshed ablation results against 632-query manifest + length-degradation table for main queries

v0.2: expanded ablation coverage (NFKD-normalised section bucketing); ablation 624→632 (H 200→207, C 424→425); refreshed README + language metadata

v0.1: 1624 query clips (1000 main + 624 ablation) + refs metadata + 3-system baseline results (Olaf, Dejavu, Panako) + inspection tables