The Archive

The record, as far as it goes

Material released by the Disclosure Board under Protocol Sigma. Some entries are published in full, some carry redaction, and some are listed only so that the gap is visible.

Entries
27
Earliest
1974
Open
13
Sealed
2

Broader catalogue? Search stations, cases, people… · CASE-1270

  1. SEN-25-002 SEALED Jan 20, 2025

    [WITHHELD]

    Existence acknowledged. Contents withheld in full. Listed so that the record shows the gap rather than concealing it.

    Declassified document sealed disclosure protocol-sigma
  2. SEN-24-128 OPEN Oct 03, 2024

    Catalogue Note: Period-1270 Cross-Index

    A filing note that binds Observation 7A, Recovered Signal 14, Tape Series M, and CASE-1270 under a single public index term without claiming a mechanism.

    Catalogue note period-1270 catalogue case-1270 indexing
  3. SEN-24-096 RESTRICTED Sep 17, 2024

    Convergent Independent Results

    Four groups with no contact reached the same unusual result within nineteen months. The note examines whether this means anything, and concludes — carefully — that it probably does not.

    Intelligence note methodology unresolved review period-1270
  4. SEN-23-015 OPEN Jun 12, 2023

    Shutdown Semantics: Partial Failure Worked Examples

    Worked examples of shutdown under partial failure, drawing on Vale's Directorate II notes and HALLOW Unit 9.

    Technical memorandum ai-alignment reversibility autonomous-systems
  5. SEN-23-041 OPEN Apr 27, 2023

    Technical Memorandum: Reversibility in Deployed Systems

    How the Reversibility Principle is actually enforced in engineering practice, including the four tests a system must pass before it is allowed to exist outside a laboratory.

    Technical memorandum governance engineering reversibility practice
  6. SEN-22-018 OPEN Feb 16, 2022

    The Eleventh Week

    Vigilance data from eleven-week isolated rotations at Station LOWFIELD. Attention does not decline smoothly; it declines in a step, and the step is not where anyone expected.

    Research brief human-factors lowfield vigilance operations
  7. SEN-21-088 SEALED Sep 01, 2021

    Facility QUIETUDE: Catalogue Acknowledgement

    [WITHHELD] Existence of Facility QUIETUDE acknowledged for catalogue integrity. Contents withheld.

    Declassified document sealed quietude quiet-library
  8. SEN-21-070 RESTRICTED Jun 30, 2021

    Recovered Artefact: Tape Series M

    Nine reels of instrumentation tape recovered from a closed metrology laboratory. Reel M-6 carries a 1979 recording of a periodic emission, four years before any of our instruments were capable of recording it.

    Recovered artefact quiet-library recovered-media period-1270 unresolved
  9. SEN-19-034 CONTROLLED May 14, 2019

    Field Report: HALLOW Unit 9 Autonomous Stop

    An autonomous vehicle stopped itself 41 hours into an unattended traverse and was found to be correct. The interesting part is that the operators spent six hours trying to prove it wrong.

    Field report autonomous-systems hallow safety human-factors
  10. SEN-18-062 CONTROLLED Aug 11, 2018

    Holdover Drift That Looked Like Health

    A follow-on to Experiment Delta at Timing Annex CINDER. The reference remained within envelope while disagreeing with three external attestations.

    Experiment summary polaris holdover negative-finding cinder
  11. SEN-16-007 CONTROLLED Mar 22, 2016

    Experiment Delta: Holdover Beyond Design

    A reference was deliberately cut off from every external input and left to run for 400 days to find out how it would fail. It failed in the way that is hardest to detect.

    Experiment summary timing polaris experiment metrology
  12. SEN-15-033 CONTROLLED Jan 08, 2015

    CASE-1270 Opening Memorandum

    MERIDIAN opens an investigation file for the recurring 1,270-second interval. The memorandum forbids causal language in public releases.

    Intelligence note period-1270 case-1270 governance
  13. SEN-14-052 RESTRICTED Nov 19, 2014

    Recovered Signal 14

    A structured emission recovered from archival survey data during an unrelated reprocessing exercise. Terrestrial in origin. The period matches Observation 7A to four significant figures, and nobody can say why.

    Intelligence note signal-intelligence unresolved period-1270 reprocessing
  14. SEN-12-055 OPEN Jan 30, 2012

    Atlas: Eighteen Months of Useful Uselessness

    Operational postmortem of Atlas Engine's refusal period — why usefulness collapsed, and why the refusal was kept.

    Research brief atlas-engine ai-alignment provenance
  15. SEN-11-088 OPEN Aug 23, 2011

    Atlas Engine: Refusal as a Feature

    The design decision that defines our analysis platform: it will decline to answer rather than answer without a citable source. Includes the eighteen months during which this made it useless, and why we kept it.

    Research brief ai-alignment atlas-engine provenance retrieval
  16. SEN-09-061 OPEN Oct 02, 2009

    Protocol Sigma: Disclosure Under Uncertainty

    The decision procedure the Disclosure Board applies when it does not know whether publishing will help. Includes the three questions, the tie-break, and the requirement to record the decision against the person who made it.

    Technical memorandum governance disclosure ethics protocol-sigma
  17. SEN-07-019 OPEN Feb 21, 2007

    Argus Design Note: Prefer Missed Drama

    Why Argus is tuned to hate quiet falsehood more than noisy truth — with the 1993 ARGENT hours as the teaching case.

    Technical memorandum argus instrument-drift architecture
  18. SEN-04-029 CONTROLLED Nov 08, 2004

    Helios: The Load-Shedding Order

    The order in which a remote station gives things up when power runs short. Compute goes early. Heat goes late. The last thing on the list is not equipment.

    Technical memorandum helios power resilience operations
  19. SEN-03-044 OPEN Jun 09, 2003

    Negative Result: Cable Microphonic Hypothesis

    A carefully motivated hypothesis about Observation 7A's buried cable run is tested again with modern gear and fails again.

    Experiment summary negative-finding lowfield period-1270 timing
  20. SEN-98-003 OPEN Jul 15, 1998

    Sentinel Grid: Design Rationale

    Why the institution built its own fabric rather than buying one, and the single assumption the whole design rests on: that any site can be gone at any time, without warning, for an unbounded period.

    Research brief distributed-computing infrastructure sentinel-grid architecture
  21. SEN-96-011 RESTRICTED Nov 18, 1996

    Relay NORTHLINE: Last Acknowledged Traffic

    Traffic ceases. The shelter will be found later. The logs will not be readable. The map confidence will not improve.

    Incident report northline infrastructure unresolved
  22. SEN-93-112 CONTROLLED Feb 08, 1993

    Incident Report: Loss of Reference at ARGENT

    A nineteen-hour period during which the primary site believed it knew the time and did not. No data was lost; eleven months of prior data became unusable, which was worse.

    Incident report timing incident argent data-quality
  23. SEN-91-028 CONTROLLED Nov 02, 1991

    Observatory ASHEN: First Light and First Doubt

    Commissioning of Observatory ASHEN. Optical quiet is excellent. Timing quiet is not yet trusted. A footnote records an unexplained 1,270-second feature in a borrowed comparison run.

    Technical memorandum ashen timing commissioning period-1270
  24. SEN-87-015 OPEN Mar 14, 1987

    Northern Emplacement: Seasonal Occupation Notes

    First full winter after LOWFIELD commissioning. Notes on access, quiet hours, and why the 1981 temporary record still cannot be reconciled to the station log.

    Field report lowfield operations history period-1270
  25. SEN-86-044 OPEN Aug 29, 1986

    Station LOWFIELD: Commissioning Report

    Commissioning of the northern station, including the decision to site it for radio quiet rather than for access, and the twelve-year gap between first occupation and formal commissioning.

    Declassified document lowfield infrastructure commissioning history
  26. SEN-81-017 CONTROLLED Sep 04, 1981

    Observation 7A: Anomalous Timing Residuals

    A 1,270-second periodicity in clock comparison residuals, first logged at a temporary northern site five years before that site was formally commissioned. Never explained; never reproduced on demand.

    Observation log timing signal-intelligence lowfield unresolved
  27. SEN-74-001 OPEN Mar 11, 1974

    Founding Memorandum: The Continuity Office

    The two-page memorandum that established the institution, including the funding condition its author attached and the board's reluctant acceptance of it.

    Declassified document governance charter history founding