Frozen historical clock
Every replay is restricted to information available within its declared historical window.
Validation
Historical crisis
replays.
Voluspa is evaluated against historical disruptions using frozen data, unchanged operational thresholds and explicitly defined acceptance criteria.
Validated replay
Suez Canal · 2021
Meridian-only evaluation
Ever Given disruption
Meridian detected the collapse in Suez transit within one daily observation, escalated the disruption through persistent evidence and tracked the subsequent recovery without future-data leakage.
1 day
Detection latency
71%
Average flow collapse
5 / 5
Acceptance checks
0
Pre-event disruptions
23 March–31 May 2021
View evidence →Evaluation method
Evidence before interpretation.
Historical replays are designed to separate genuine model behaviour from retrospective storytelling.
Predefined criteria
Detection and recovery requirements are recorded before model output is evaluated.
Untouched first results
Initial runs are preserved before tuning, reinterpretation or model adjustment.
Mode isolation
Individual modules are tested separately before integration through Yggdrasil.