JHTDB PILOT B — PRIMARY ROUTE-DERIVED LADDERS
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D_STITCH.csv  finite source-object stitch_defect values.
P_TIME.csv    time_persistence on actual sources of eligible time edges.
P_SCALE.csv   scale_persistence on actual sources of eligible scale edges.

Frozen extraction rules preserved exactly: duplicates retained; no deduplication,
jitter, smoothing, normalization or rescaling; binary64 rendered with 17
significant digits; ascending stable sort only.
