Sources & Methodology
Every investigation on Lethometry is built from primary sources, peer-reviewed research, and declassified materials. This page explains how we source, verify, and cite, then gives you the actual documents and footage to check.
Lethometry is an independent research archive. We do not originate claims from thin air. Each piece examines existing evidence and builds a case you can check yourself. Below are the source categories we draw from, our verification standards, and a live index of the primary records and documentary footage behind the archive.
Source categories
- Declassified government records — FOIA releases, AARO reports, congressional testimony, and presidential unsealing programs.
- Peer-reviewed research — physics, neuroscience, philosophy of mind, and complexity papers from indexed journals.
- Primary historical documents — patents, engineering schematics, and contemporaneous accounts.
- Public datasets — cosmological surveys, anomaly databases, and open scientific repositories.
- Witness and field reporting — corroborated first-hand accounts, used only where independently supportable.
Verification standards
- Claims are traced to a named, linkable source wherever one exists.
- Secondary reporting is flagged as such and linked to the underlying primary document.
- Conflicting evidence is presented rather than buried.
- Speculation is labeled as hypothesis, not fact.
Primary-source index
The following are the live repositories behind the declassification and simulation-theory dossiers on this site. None are affiliate or paywalled.
- PURSUE — Presidential Unsealing and Reporting System for UAP
Department of War. Four tranches released in 2026 (May 8, June 12, July 10, plus a fourth release). Records, videos, and audio. - AARO UAP Records & Information Papers
All-domain Anomaly Resolution Office. Official UAP records portal and foundational research papers. - NARA — Records Related to UFOs and UAPs
U.S. National Archives. Cross-agency record groups on unidentified anomalous phenomena. - Chalmers, D. “Taking the Simulation Hypothesis Seriously” (2024)
Peer-level philosophical treatment of the simulation argument and its epistemic weight. - “Are We Living in a Simulation? A Deep Dive” (2025)
Review paper evaluating simulation theory through philosophical foundation and scientific basis.
Documentary footage
Primary video evidence and explainers. All embed via privacy-preserving YouTube nocookie.
Department of War / Pentagon UAP record releases, 2026 — NewsNation coverage of the tranches.
Nick Bostrom on the simulation argument — the philosophical origin point of the archive.
Corrections
If you find a factual error or a broken source link, contact us via the contact page. Verified corrections are applied to the relevant investigation.