Records the auction-record field set, route spellings, pile encoding and the four
open UNKNOWNs so future agents neither reopen settled questions nor re-guess enum
values. Each claim tagged CONFIRMED / FIFA17-HISTORICAL / INFERRED / UNKNOWN.
Captures the key methodological lesson: oracle parity is necessary but NOT
sufficient for a flow the oracle itself never served -- our auction record matched
the oracle key-for-key while both omitted the FIFA 17 ownership fields.