{
 "schemaVersion": "1.0.0",
 "constitutionVersion": "1.0.0",
 "createdAt": "2026-08-12T00:00:00Z",
 "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.",
 "entity": {
  "type": "project",
  "id": "chattanooga-quantum-grid",
  "title": "EPB Quantum Network Infrastructure",
  "canonicalUrl": "https://1001smartcities.org/projects/chattanooga-quantum-grid/"
 },
 "currentRevisionId": "2026-08-22-evidence-baseline",
 "revisions": [
  {
   "id": "2026-08-22-evidence-baseline",
   "createdAt": "2026-08-22T14:11:00Z",
   "effectiveAt": "2026-08-02",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 6 claims and 4 source dossiers.",
   "preparedBy": {
    "type": "automation",
    "label": "AI-assisted evidence preparation",
    "humanApproved": false
   },
   "review": {
    "status": "unreviewed",
    "by": null,
    "date": null,
    "note": "Awaiting operator and domain-expert review; publication of this revision implies neither."
   },
   "changes": [
    {
     "operation": "add",
     "path": "/evidencePassport",
     "summary": "Added claim-level evidence mapping and source dossiers."
    },
    {
     "operation": "add",
     "path": "/revisionHistory",
     "summary": "Established a permanent, hash-addressed baseline revision."
    }
   ],
   "snapshotHash": "sha256:92b2c0003921db663435cc37822121e5de8c6682a885f1dfaa90255a6255a3ef",
   "snapshot": {
    "asOf": "2026-08-02",
    "projectFingerprint": "sha256:508103fc18f11bec71a4f7f4e3f581ff52e6b557d2a128c47efef7cb5f0fa71a",
    "assurance": {
     "status": "unreviewed",
     "scope": "evidence-passport-revision",
     "statement": "AI-assisted structural preparation. This revision has not been reviewed by a human or subject-matter expert.",
     "machineChecks": [
      "schema",
      "publication-diff-contract",
      "material-project-fingerprint",
      "claim-text-drift",
      "source-reference-resolution",
      "complete-source-dossier",
      "snapshot-hash"
     ]
    },
    "projectState": {
     "status": "live",
     "outcome": "ongoing",
     "evidenceGrade": "official",
     "timeline": {
      "started": 2022,
      "ended": null
     }
    },
    "governance": {
     "operator": "EPB (Electric Power Board of Chattanooga), with IonQ as network/quantum-computing partner since the Qubitekk acquisition",
     "actorTypes": [
      "utility",
      "private"
     ],
     "fundingModel": "mixed",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-2dab8ef37190614b",
      "field": "snippet",
      "text": "EPB and Qubitekk's Quantum Network launched November 2022 on EPB's substation fiber loops",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8d57050491a3a3b5",
       "src-ebf98bfa9c1b9b4f"
      ],
      "supportNote": "EPB's own launch release (dated 29 November 2022) states: 'EPB and Qubitekk are already utilizing EPB Quantum Network to share quantum states between two Quantum Equipment Hubs over a commercial fiber optic network' built on 'real-world fiber optic loops that EPB established between some of its electric substations.' The Quantum Insider's independent trade-press coverage (1 December 2022) confirms the same launch, though it is largely a republished version of the press release with minimal independent reporting added.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-ab666b7e195392f8",
      "field": "snippet",
      "text": "growing out of a 2015 DOE-funded grid-security partnership with Oak Ridge and Los Alamos national labs",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8d57050491a3a3b5"
      ],
      "supportNote": "EPB's own release states this exactly, naming the year and both national laboratories: 'With U.S. Department of Energy funding aimed at securing America's electric grid against cyberthreats, EPB, Qubitekk, Oak Ridge National Laboratory and Los Alamos National Laboratory partnered starting in 2015 to run quantum encryption technologies across real-world fiber optic loops...' A cross-check against independent search results corroborates 2015 as the start year and adds that a related 'Quantum Ensured Defense of the Smart Electric Grid' effort beginning in 2016 won a 2021 R&D 100 Award -- a later, separate milestone, not the partnership's start date.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-40c09c1b430b91d4",
      "field": "snippet",
      "text": "It offers entangled-photon and QKD cryptography infrastructure to researchers and companies",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8d57050491a3a3b5",
       "src-ebf98bfa9c1b9b4f"
      ],
      "supportNote": "Both sources describe the underlying photon-entanglement technique -- EPB's release explains that 'a pair of light particles (photons) can be linked or \"entangled\" such that any change in one of the photons is instantly mirrored by its twin even when they are separated by great distances' -- and both name the intended audience as 'private companies as well as government and university researchers.' Neither source uses the acronym 'QKD' verbatim; both call it 'quantum encryption technologies,' which is the same underlying technique (entangled photons used for secure key exchange) usually labelled QKD.",
      "caveat": "Both sources describe an offering and an intended audience, not a documented count of active users. Neither of the two cited sources names an actual customer or usage figure, and neither uses the specific term 'QKD.' (Later trade-press coverage from December 2023, not among this entry's sources, names a single early customer running validation tests -- that is not reflected here.)",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-4e05117ef51af6b9",
      "field": "snippet",
      "text": "IonQ announced a definitive agreement to acquire Qubitekk on 6 November 2024",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0dfd681ff8000215"
      ],
      "supportNote": "The cited release, dated 6 November 2024, announces that IonQ 'has reached a definitive agreement to acquire substantially all of the operating assets of Qubitekk, Inc.' and states IonQ 'anticipates closing the acquisition within the next six months, subject to the satisfaction of certain closing conditions.' It does not name a purchase price.",
      "caveat": "This source documents only an announced definitive agreement (6 November 2024) and an anticipated closing window of up to about six months; it does not itself state that the acquisition closed in December 2024, and it names no purchase price. The entry's present-tense claim of a December 2024 acquisition is not confirmed by any of this entry's four listed sources.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-d625fd6205156c95",
      "field": "snippet",
      "text": "is building an on-site quantum-computing center with EPB",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-12f7616a7f817391"
      ],
      "supportNote": "EPB's 25 April 2025 release announces the EPB Quantum Center partnership with IonQ, describing the IonQ Forte Enterprise system that will be installed at the facility as 'an equally shared resource' between EPB and IonQ, with IonQ establishing an office in Chattanooga to support it.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-4b97b46a3cc6751d",
      "field": "snippet",
      "text": "EPB targeted for commissioning in early 2026",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-12f7616a7f817391"
      ],
      "supportNote": "EPB's release states the target directly: 'EPB and IonQ expect to complete the build-out and commissioning of the EPB Quantum Center by early 2026.'",
      "caveat": "This is a stated target as of April 2025, not a confirmed completion date. As of this entry's last verification (2 August 2026) -- well after the target had passed -- none of the entry's four sources confirms that commissioning actually happened. Newer EPB material found during this review (an August 2026 release, not among this entry's sources) still describes the Forte Enterprise system as 'being prepared for commercial deployment' rather than as commissioned or operating, suggesting the early-2026 target had slipped.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-8d57050491a3a3b5",
      "title": "EPB (operator)",
      "url": "https://epb.com/newsroom/press-releases/epb-and-qubitekk-launch-commercial-quantum-network-to-accelerate-development-and-adoption-of-quantum-products/",
      "publisher": {
       "name": null,
       "domain": "epb.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-2dab8ef37190614b",
       "clm-ab666b7e195392f8",
       "clm-40c09c1b430b91d4"
      ],
      "temporal": {
       "publishedAt": "2022-11-29",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-22",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Original launch announcement: Bohr IV entangled-photon/QKD system, 2015 DOE-funded origin with Oak Ridge and Los Alamos national labs.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-ebf98bfa9c1b9b4f",
      "title": "The Quantum Insider (trade)",
      "url": "https://thequantuminsider.com/2022/12/01/epb-qubitekk-launch-commercial-quantum-network-to-accelerate-development-adoption-of-quantum-products/",
      "publisher": {
       "name": null,
       "domain": "thequantuminsider.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-2dab8ef37190614b",
       "clm-40c09c1b430b91d4"
      ],
      "temporal": {
       "publishedAt": "2022-12-01",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-22",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Independent trade-press coverage of the 2022 launch.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-0dfd681ff8000215",
      "title": "IonQ investor release, 6 Nov 2024",
      "url": "https://investors.ionq.com/news/news-details/2024/IonQ-to-Acquire-Qubitekk-Furthering-Leadership-in-Quantum-Networking/default.aspx",
      "publisher": {
       "name": null,
       "domain": "investors.ionq.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-4e05117ef51af6b9"
      ],
      "temporal": {
       "publishedAt": "2024-11-06",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-22",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "IonQ's agreement to acquire Qubitekk's operating assets (~$22.1M, closed 27 Dec 2024).",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-12f7616a7f817391",
      "title": "EPB, 25 April 2025",
      "url": "https://epb.com/newsroom/press-releases/epb-quantum-center/",
      "publisher": {
       "name": null,
       "domain": "epb.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-d625fd6205156c95",
       "clm-4b97b46a3cc6751d"
      ],
      "temporal": {
       "publishedAt": "2025-04-25",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-22",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "EPB and IonQ partnership to build the EPB Quantum Center (IonQ Forte Enterprise system), commissioning targeted for early 2026.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 6,
     "claimsMapped": 6,
     "sourcesTotal": 4,
     "sourcesUsedByClaims": 4,
     "sourcesWithPublicationDate": 4,
     "sourcesWithArchive": 0,
     "sourcesWithExactLocator": 0,
     "sourcesWithContentHash": 0
    },
    "limits": [
     "Publisher names and source languages have not yet been classified; domains are recorded without guessing.",
     "Existing source notes are descriptive locators, not page- or paragraph-exact citations.",
     "A missing archive, publication date or content hash is shown as null rather than inferred.",
     "The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim."
    ]
   }
  }
 ]
}