The documented kernel is Gary McKinnon's 2001-2002 intrusion into US military and NASA systems, confirmed by his 2002 arrest and decade-long extradition fight: he reported finding a spreadsheet titled 'Non-Terrestrial Officers' and ship-to-ship transfer logs. McKinnon's hack is documented fact (US indictment, 2002); his interpretation of what he found is his own testimony, never corroborated. The whistleblower layer, William Tompkins's Selected by Extraterrestrials (2015) and Corey Goode's Solar Warden testimony, rests entirely on personal accounts.
Whistleblower literature assembled the claim into a full parallel history: Nazi paperclip rocketry, Reagaran-era SDI as cover, Navy space carriers, corporate off-world colonies. The genre's documented tell is its sourcing loop: Goode cites Salla, Salla cites Goode, Tompkins cites neither's evidence.
The claim's rational skeleton: classified aerospace budgets are real, the NRO's existence was itself secret until 1992, and black programs routinely exceed public technology by years. The leap from hidden budgets to hidden fleets is the undefended gap, and the archive keeps the gap exactly where the claimants left it.
If the fleet is real, why was its manifest on a networked Excel file?