FootballTransfers fields in every export
Record type is the first field: completed transfer, reported interest, or estimated valuation. Everything else is interpreted through it, and a dataset without it cannot be used safely by anyone who did not build it.
Transfer records carry the player, the clubs on both sides, the window and season, the fee as published with its currency, the deal type such as permanent or loan, and whether the fee was disclosed or reported.
Reported interest records carry the player, the interested club, the date reported and the publication cited where the site names one. Attribution is the field that lets a user weigh the claim; without it a rumour becomes an anonymous assertion in a spreadsheet.
Valuation records carry the estimate, the currency and the date, and are labelled as estimates on the row rather than in documentation nobody downstream will read.
Every row carries the collection timestamp, which matters here because a valuation is only meaningful with a date attached.