Derive diff_lines and n_tests rather than publishing 0 for unknown

896 records from 352 projects

Datasheet: describe what the verifier does, and record the interpreter used

Better card, readable column order, and statistics that compute

Serve Parquet so dates stay dates: a JSON date was being read as a timestamp and returned with a time component

Goldset: 742 verified bug-fix records from 274 projects

initial commit