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Place
Facilities
Connect a facility or site to documented organizations, operations, materials, worker populations, incidents, and source records.
Explore facilities →Public Evidence Explorer
Follow evidence across the historical nuclear weapons complex.
The Public Evidence Explorer is the publication layer of THE ROSETTA WEB™. It will contain only records that have passed source verification, evidentiary qualification, citation review, and public-release review.
Facility → Organization → Material → Movement → Work → Record
Foundation Edition
Search the evidence by connection.
This foundation establishes the public evidence model before records are released at scale. The private Master Evidence system is never exposed directly.
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Institutions
Organizations & Contracts
Follow government authorities, laboratories, universities, contractors, vendors, and documented contractual relationships.
Explore organizations →⚛
Matter
Materials & Components
Trace materials by isotope, form, process, component, transfer, use, disposition, and surviving documentary record.
Explore materials →⇄
Movement
Shipments & Transfers
Follow documented sender–receiver relationships, shipments, receipts, accountability records, and unresolved transfer gaps.
Explore movement →◇
Activity
Operations & Programs
Connect programs and operations to places, materials, tasks, worker populations, and records without assuming undocumented participation.
Explore operations →△
People & Work
Occupational Evidence
Examine documented work, monitoring, exposure pathways, incidents, and the representativeness or absence of surviving records.
Explore occupational history →▤
Source
Documents & Archives
Return every published relationship to the source document, creator, repository, identifier, citation, and evidentiary limits.
Explore source records →?
Gap
Missing Evidence
Keep documented gaps visible. A missing link remains a missing link until evidence supports changing its status.
Explore missing evidence →Publication pipeline
Private research does not automatically become public evidence.
Candidate evidence moves through a controlled publication process before appearing here.
Master Evidence → Source Verification → Evidentiary Review → Citation Review → Public-Safe Review → Ready for Website
Public status
Evidence carries its qualification with it.
Public records may be identified as Documented, Indirectly Documented, Research Lead, Unresolved, or Missing-Record Target. Status is not silently upgraded by inference.
The public database is a curated publication layer. It is not a mirror, export, or connection to the private Master Evidence workbook.
Nuclear Materials Genealogy
Preserve every link—and every gap.
ORIGIN → MATERIAL → FORM → PROCESS / TRANSFORMATION → COMPONENT → SHIPMENT / TRANSFER → FACILITY → OPERATION → PEOPLE → MONITORING / EXPOSURE EVIDENCE → RECOVERY / DISPOSITION → RECORD
Rosetta uses this chain to reconstruct material histories without filling documentary gaps through chronology, proximity, or technical plausibility alone.
A missing link remains a missing link.
Collection 001 · First Public Records
Verified evidence, with its limits preserved.
The first published collection begins with three tightly sourced records from the Molten Salt Reactor Experiment at ORNL. Each record states what the source establishes—and what it does not.
RW-EV-0001 · DOCUMENTED · INCIDENT
MSRE final-shutdown primary-system leak — December 12, 1969
Facility: Oak Ridge National Laboratory · MSRE · Building 7503
What the evidence establishes: During the scheduled final shutdown, fission-product activity appeared in the reactor-cell atmosphere. ORNL reported about 30 curies of xenon, less than 0.1 curie of iodine, and trace noble-metal fission products; the leak was localized near fuel-drain-tank freeze valve FV-105.
What it does not establish: The incident report alone does not identify every worker present, individual dose or bioassay results, or prove that every responder received complete internal-exposure monitoring.
Primary source: R. H. Guymon, R. C. Steffy Jr., and C. H. Gabbard, Preliminary Evaluation of the Leak in the MSRE Primary System Which Occurred During the Final Shutdown, ORNL-CF-70-4-24 (Apr. 22, 1970), abstract p. 1; chronology pp. 9–18.
Read the primary source at OSTI →RW-EV-0002 · DOCUMENTED · MONITORING
Fixed radiation-monitor behavior became anomalous during leak response
Facility: Oak Ridge National Laboratory · MSRE · Building 7503
What the evidence establishes: During investigation of the December 1969 leak, ORNL checked fixed reactor-cell monitors and obtained a cell-atmosphere sample for gamma spectrometry after anomalous monitor behavior. The report discusses contamination associated with monitor lines and airflow effects.
What it does not establish: Fixed-monitor readings alone do not establish worker breathing-zone concentration, individual intake, or complete worker-specific monitoring.
Primary source: Guymon, Steffy, and Gabbard, ORNL-CF-70-4-24, pp. 17–18.
Read the primary source at OSTI →RW-EV-0003 · DOCUMENTED · OPERATION
December 14 diagnostic test deliberately reproduced the release signal
Facility: Oak Ridge National Laboratory · MSRE · Building 7503
What the evidence establishes: Operators thawed FV-105 and applied helium pressure while observing cell-air radiation monitors. The monitor response rose during the diagnostic sequence, helping localize the leak.
What it does not establish: The source does not by itself provide a complete personnel list, worker-specific dose or intake results, or complete follow-up bioassay for participants.
Primary source: Guymon, Steffy, and Gabbard, ORNL-CF-70-4-24, pp. 18–19.
Read the primary source at OSTI →Collection note
Collection 001 is intentionally small. Records are added only after source identity, citation, evidentiary qualification, and public presentation have been reviewed. Candidate records that still require underlying documentation remain in the private publication queue and are not promoted here.
Next publication stage
The foundation is ready for verified records.
Collection 001 has begun populating this framework with records that have cleared publication review. Future records will be added only after reaching READY FOR WEBSITE status. Each record can then be cross-linked to the relevant facility, organization, material, shipment, operation, worker population, document, and archive.
Core rule
Evidence before connection.
Presence is not exposure. Employment is not task evidence. Participation is not task evidence. Movement is evidence of connection, not automatically exposure. Missing evidence is not evidence of absence.
Evidence vocabulary
Read the Evidence Status Key.
Rosetta uses a common site-wide vocabulary to distinguish documented evidence, indirect evidence, unresolved questions, research leads, and missing-record targets.
Open the Evidence Status Key →