{
  "version": "2.23.0",
  "generated": "2026-08-08",
  "status": "PASS",
  "record": {
    "id": "EVI-DED-026",
    "slug": "science-loss-of-one-deployment-region-26",
    "title": "Science — loss of one deployment region",
    "dependencyDomain": "science",
    "fixtureClass": "loss of one deployment region",
    "relatedConcentrationRiskId": "EVI-CR-002",
    "preconditions": [
      "A byte-bound accepted public state exists or the record explicitly says none exists.",
      "The replacement path, authority, and rollback rule are declared before fault injection.",
      "No network call, production credential, citizen record, passport body, or private receipt is used."
    ],
    "boundedFault": "Synthetic zero-network loss of one deployment region affecting science; no production service is touched.",
    "expectedPublicState": "MIGRATE_OR_RESTORE_WITH_APPEND_ONLY_EVIDENCE",
    "acceptedStatePreservation": true,
    "portabilityArtifact": "Portable credentials and history under lawful process.",
    "replacementDependency": "Independent identity providers and offline recovery.",
    "maximumToleratedInterruption": "15 minutes for public read-only orientation",
    "unresolvedResiduals": [
      "Operational service outage, key compromise, split-brain records.",
      "A local deterministic drill does not prove supplier cooperation, production capacity, legal authority, or real recovery time."
    ],
    "rollbackRule": "Rejected, incomplete, stale, disputed, or corrupted migrations cannot overwrite accepted state. Restore the last verified local projection and publish the degraded state.",
    "evidencePath": "docs/proof/fixtures/v223-dependency-exit/26-science-loss-of-one-deployment-region.json",
    "observedResult": "PASS_WITH_DECLARED_RESIDUALS",
    "resultReason": "The fixture completed its deterministic local transition and retained rollback evidence.",
    "networkCalls": 0,
    "productionMutation": false,
    "explicitNoProductionClaim": "No production dependency was disconnected, migrated, failed over, restored, handed back, or verified.",
    "truthBoundary": "Synthetic local exit-readiness fixture. It does not prove a live alternative, actual portability, supplier cooperation, production recovery, service continuity, or legal authority.",
    "canonicalRoute": "/state/governance/concentration-risk/exit-drills/science-loss-of-one-deployment-region-26/"
  }
}