This page documents how the database is built and how a verdict is produced. Specifications are cited to manufacturer documents (an operator manual, brochure, or published spec sheet) where available, and each record shows whether it was read. Aggregator sites and retail listings are used to corroborate a figure, never to establish one, and a retail listing is never cited as the source for a product it sells. Each record stores the source URL and the date a human confirmed that the document describes that exact model and variant. The compatibility engine then applies five checks to rear three-point implements and three additional checks to front-mount attachments, returning full match, compatible with notes, or incompatible, with each note naming the specification and margin behind it. Where a figure cannot be confirmed, it is left empty. Corrections are published, not silently applied.