Encyclotron Audit: Basecamp (37signals) is an empirical study by Rex Fraction and Lee Sharks, held as a metadata capture — a sample audit demonstrating the archive's compression diagnostics on a real company.
Its findings are quantitative: 15 queries across 5 diagnostic levels, yielding β=0.71, 0% category visibility, a lost decision layer, and semantic fragmentation across product, methodology and founder identity.
Zero percent category visibility is the striking figure — a well-known company that machine retrieval could not place in its own category. The Encyclotron is the archive's diagnostic instrument for measuring how an entity survives compression, and demonstrating it on Basecamp rather than on the archive itself is the same evidentiary discipline the Platform Erosion Observatory follows: the instrument is credible when its operator is not its subject.