{
  "capability": {
    "authorityContext": "DARPA's Adaptable Navigation Systems program publicly describes architectures that incorporate new and non-traditional sensors, while CISA acquisition guidance emphasizes source diversity, cross-verification, isolation, and recovery. Those sources illustrate evaluation concerns rather than prescribe an LJP fusion design.",
    "authorityReferences": [
      {
        "applies_to": "pntfusion.com",
        "document_id": "DARPA ANS program",
        "id": "darpa-adaptable-navigation-fusion",
        "organization": "Defense Advanced Research Projects Agency",
        "public_authorized": true,
        "relevance": "Describes rapidly reconfigurable navigation architectures using alternate and non-traditional sensors when GPS is unavailable.",
        "scope_note": "The program illustrates multi-source navigation research and does not define or endorse the LJP namespace.",
        "title": "Adaptable Navigation Systems",
        "url": "https://www.darpa.mil/research/programs/adaptable-navigation-systems"
      },
      {
        "applies_to": "pntfusion.com",
        "document_id": "Federal PNT Services Acquisitions Guidance Version 1.0",
        "id": "cisa-pnt-acquisition-guidance-fusion",
        "organization": "Cybersecurity and Infrastructure Security Agency",
        "public_authorized": true,
        "relevance": "Identifies source diversity, cross-verification, source isolation, bounded degradation, and recovery as acquisition considerations for resilient PNT.",
        "scope_note": "The guidance is voluntary and does not prescribe a universal fusion architecture.",
        "title": "Federal Positioning, Navigation, and Timing Services Acquisitions Guidance",
        "url": "https://www.cisa.gov/sites/default/files/2024-03/Federal%20Positioning%2C%20Navigation%2C%20and%20Timing%20%28PNT%29%20Services%20Acquisitions%20Guidance%20%28508%29.pdf"
      }
    ],
    "definition": "The architectural combination of multiple positioning, navigation, and timing sources or observations to support a more complete mission-relevant PNT result.",
    "deploymentStatus": "active",
    "directAnswer": "PNT Fusion combines measurements, estimates, or status from multiple authorized sources into a coherent PNT result or decision input. A sound fusion design accounts for source independence, uncertainty, integrity, timing, failure modes, and the possibility that one source can contaminate the result; the appropriate method depends on the mission and architecture.",
    "id": "https://pntfusion.com/#pnt-fusion",
    "name": "PNT Fusion",
    "publicationStatus": "published",
    "questionOwned": "How can multiple PNT sources be organized into a coherent result?",
    "relationshipContext": "PNT Fusion is closest to Opportunistic PNT. Opportunistic PNT expands the candidate source set; fusion determines how qualified inputs from dedicated and non-dedicated sources may contribute to a coherent result.",
    "relationshipPresentation": {
      "closest_related": "opportunisticpnt.com",
      "difference": "PNT Fusion governs how qualified inputs are combined; Opportunistic PNT identifies non-dedicated signals, observations, or features that might become candidate inputs.",
      "relationship": "Opportunistic sources may expand a fusion architecture, while fusion must still evaluate their uncertainty, independence, integrity, timing, legality, and failure behavior.",
      "see_also": [
        "navigationintegrity.com",
        "assuredpnt.ai"
      ]
    },
    "role": "capability-namespace",
    "semanticRecord": "https://digitaleasements.com/ontology/v1/concept/pnt-fusion",
    "url": "https://pntfusion.com/",
    "whyItMatters": "Adding sources does not automatically improve resilience or assurance. Sources may share common dependencies, disagree, arrive at different rates, or fail in correlated ways, so buyers must evaluate how inputs are qualified, combined, isolated, and reported."
  },
  "credibilityBoundary": "Implementation-neutral public orientation; no certification, endorsement, regulatory determination, or performance guarantee.",
  "editorialModel": "2.2",
  "lastModified": "2026-07-30",
  "manifestType": "ljp.public-capability-namespace",
  "manifestVersion": "1.0",
  "package": {
    "deploymentStatus": "active",
    "id": "https://sovereignpnt.com/#sovereign-pnt",
    "name": "Sovereign PNT & Resilient Timing",
    "namespaceName": "Sovereign PNT",
    "publicationStatus": "published",
    "role": "canonical-package-namespace",
    "url": "https://sovereignpnt.com/"
  },
  "peerCapabilityNamespaces": [
    {
      "name": "Resilient PNT",
      "url": "https://resilientpnt.ai/"
    },
    {
      "name": "Assured PNT",
      "url": "https://assuredpnt.ai/"
    },
    {
      "name": "Navigation Integrity",
      "url": "https://navigationintegrity.com/"
    },
    {
      "name": "Opportunistic PNT",
      "url": "https://opportunisticpnt.com/"
    }
  ],
  "principle": "Publish the map, not the machine.",
  "publicResources": {
    "llms": "https://pntfusion.com/llms.txt",
    "namespaceManifest": "https://pntfusion.com/namespace.json",
    "ontology": "https://pntfusion.com/ontology.jsonld",
    "overview": "https://pntfusion.com/",
    "robots": "https://pntfusion.com/robots.txt",
    "sitemap": "https://pntfusion.com/sitemap.xml"
  },
  "publisher": {
    "contact": "support@ljpassetgroup.com",
    "id": "https://ljpassetgroup.com/#org",
    "name": "LJP Asset Group LLC",
    "url": "https://ljpassetgroup.com/"
  },
  "version": "2.2.0"
}