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You probably arrived here from a briefing someone sent you, or from a mention somewhere that made you curious enough to check.
Welcome.
This is an independent publication standing watch on a story that most outlets are not equipped to cover, because the story does not fit inside a news cycle. Three records, one watch.
THE PASSAGE RECORD. Interstellar objects and the chemistry, trajectory, and physical structure of what transits this system.
THE ATTRITION RECORD. Deaths and disappearances across the defense-aerospace-national security ecosystem. Twelve documented names as of April 2026.
THE INSTITUTIONAL RECORD. Database edits, publication blackouts, classification shifts. What institutions do, not just what they say.
The methodology does not change beat to beat. Follow the records. Do the math. Report what you find. Every briefing is free. Every claim is sourced. Every correction is public.
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IF YOU HAVE TEN MINUTES
Read THE VERDICT. Twenty-eight briefings and fifty-seven anomalies on 3I/ATLAS, read as a single argument. If you want to know what this publication is actually saying about the object and why, this is the synthesis.
IF YOU HAVE AN HOUR
Read THE VERDICT, then read THE GHOST GENERAL for the ATTRITION beat, then read THE OPERATOR for the institutional beat. Three records, three briefings. The publication’s architecture in one sitting.
IF YOU WANT THE FOUNDATION
The reading list below is the order we would hand to a new analyst joining the network. It will take a weekend. It is the entire framework.
THE PASSAGE RECORD
THE SENTINEL DOSSIER The foundational briefing. Every anomaly catalogued. The methodology explained. The framework for everything that follows.
THE IGNITION SEQUENCE Six-phase activation timeline built from three independent research teams. Where the comet model started breaking.
THE CURATED ORBIT Independent scientists used 7,578 astrometric observations where NASA’s JPL used 782. What the filtered data was hiding.
THE GHOST COMA The extended water production source that five teams, five instruments, and five wavelengths cannot explain with ice.
THE NARROW BAND SETI’s CEO told you to expect a probe. His telescopes searched for a radio tower. The forensic analysis of the FAST SETI null result.
THE VERDICT Twenty-eight briefings. Fifty-seven anomalies. The synthesis. 3I/ATLAS, read as what the data actually shows.
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THE ATTRITION RECORD
Twelve documented names as of April 2026. Maiwald. Chavez. Reza. Casias. Jacob Prichard. Jaymee Prichard. Gustitus. Loureiro. Grillmair. McCasland. Hardwick. Ryder. Materials scientists, astrophysicists, plasma physicists, military officers, lab workers, defense executives. The throughline is the defense-aerospace-national security ecosystem.
THE GHOST GENERAL Former Air Force Research Laboratory commander Maj. Gen. William Neil McCasland vanished from Albuquerque. Every newsroom ran the same story. We ran the public records, the WikiLeaks documentation, and the OSINT connections no outlet reported.
THE DEAD DROP The McCasland follow-up. The woman the press framed as a civilian spouse turned out to be a PhD astrophysicist and NASA astronaut semifinalist. The “worried friend” quoted in every article was a former WMD agency director.
THE LONG COUNT We started with two names. The list did not stop. The Mondaloy patent chain connecting Reza, Hardwick, and McCasland.
THE BLIND SPOT Rocks are falling through our roofs. The man who tested whether we would see them coming was shot on his porch.
THE ARCHITECT Dr. James T. Ryder, Lockheed Martin Vice President, who proposed the transfer of crash retrieval material to the Defense Intelligence Agency through AAWSAP. Died Memorial Day 2018. No public death record.
The full ATTRITION roster and every case file is indexed here.
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THE INSTITUTIONAL RECORD
THE SILENT EDIT How NASA/JPL silently edited a database entry twenty-four hours after a challenging paper was published. We had the receipts.
THE SURGE The TESS blackout, the opposition window, and the data point NASA feared.
THE PUBLICATION GAP The Elsevier publication blackout on 3I/ATLAS, with forensic analysis of an inbound contact from an Elsevier publisher. XML metadata extraction confirmed the corporate origin.
THE OPERATOR The counterintelligence architecture around the UAP disclosure movement. Canary trap methodology, pre-publication OPSEC, and the source-protection framework.
THE FLOOR Japan’s Parliament opened a national security session with dead and missing American defense personnel. The ATTRITION pattern entered the parliamentary record of a U.S. treaty ally.
THE RECORD The only known English translation of Japan’s 4th UAP Parliamentary Session.
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THE PATTERN
THE SUPPRESSION GRADIENT Documented layers of institutional information management around a single object. The framework that reads across all three beats.
WHAT ARRIVES IN YOUR INBOX
Free subscribers receive every investigative briefing in full, the moment it publishes. We publish across all three beats, on no fixed schedule, but a typical reader sees one to three briefings per week.
Paid subscribers also receive THE SIGNAL every Tuesday and a new FIELDCRAFT installment every Saturday, plus access to the primary-source archive, Fieldcraft Labs, and the paid comment section.
Founding Sentinels fund the operational infrastructure directly.
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A Substack Bestseller. Top 100 Science.
The full archive is here.
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-- The Sentinel Network™