{
 "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": "lagos-blue-line-rail",
  "title": "Lagos Blue Line Rail",
  "canonicalUrl": "https://1001smartcities.org/projects/lagos-blue-line-rail/"
 },
 "currentRevisionId": "2026-08-20-evidence-baseline",
 "revisions": [
  {
   "id": "2026-08-20-evidence-baseline",
   "createdAt": "2026-08-20T00:00:00Z",
   "effectiveAt": "2026-07-26",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 5 claims and 11 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:a3f377792908a07978f89d85af423f02f50c6411a1504cec5997b91f36054936",
   "snapshot": {
    "asOf": "2026-07-26",
    "projectFingerprint": "sha256:e07bae2ee5d12b989374d705b808e863292bc7dcc4f3aab23e1010985bf8e688",
    "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": 2023,
      "ended": null
     }
    },
    "governance": {
     "operator": "Lagos Metropolitan Area Transport Authority (LAMATA); built by CCECC Nigeria, which describes itself as also operating the line",
     "actorTypes": [
      "utility",
      "private"
     ],
     "fundingModel": "public",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-97f1df626e722931",
      "field": "snippet",
      "text": "Railways sat on Nigeria's exclusive federal list for most of that build; a March 2023 constitutional amendment moved them to the concurrent list",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-1b2d524c47491642"
      ],
      "supportNote": "The legislative analysis covers the constitutional alteration that moved railways off the exclusive list, which is the change the entry dates to March 2023.",
      "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-6bc65f3e203cd3ea",
      "field": "snippet",
      "text": "the federal Nigerian Railway Corporation granted LAMATA a 15-year operating licence covering the Blue and Red Lines only in June 2026, nearly three years after service began",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-3c1575d59040c24e"
      ],
      "supportNote": "The 30 June 2026 report announces the operating licence granted to LAMATA covering the Blue and Red Lines.",
      "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-c5e3ffd198e12c1b",
      "field": "snippet",
      "text": "LAMATA said the plant was in testing in March 2024; no later confirmation of commissioning was found",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-25a2506c9a7a1a05"
      ],
      "supportNote": "The operator's own March 2024 post announces the test of the independent power plant; nothing later on the operator's site confirms commissioning.",
      "caveat": "Negative evidence for the second half: an absence of confirmation cannot be quoted.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-8a8f8926b8ddc112",
      "field": "impact",
      "text": "Lagos State Commissioner for Transportation Oluwaseun Osiyemi reported 3.5 million passengers in 2025 and daily ridership of about 15,000 (May 2026)",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-f184259564279b07"
      ],
      "supportNote": "The May 2026 headline carries both figures, attributed to the state commissioner.",
      "caveat": "Government figures relayed by the press; the entry says plainly that no independent audit was found.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-c9dd9252f1da21e1",
      "field": "impact",
      "text": "builder CCECC put cumulative ridership above 8 million in more than 1,000 days of operation (July 2026)",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-81956993f26b6e13"
      ],
      "supportNote": "The July 2026 report carries the cumulative figure alongside the Phase II construction milestone.",
      "caveat": "Contractor figures relayed by the press.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-25a2506c9a7a1a05",
      "title": "LAMATA (operator)",
      "url": "https://www.lamata-ng.com/blue-line-receives-sustainability-boost-with-test-of-independent-power-plant/",
      "publisher": {
       "name": null,
       "domain": "lamata-ng.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-c5e3ffd198e12c1b"
      ],
      "temporal": {
       "publishedAt": "2024-03-13",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. Verifies the power architecture sentence by sentence: grid supply via EKEDC Ijora and Akangba substations, six substations along the corridor, a diesel rotary UPS backup described as the second of its type in Nigeria, and that the plant was in testing in March 2024. States no capacity in MW.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-58ef2759dc228eff",
      "title": "LAMATA Blue Line timetable (operator)",
      "url": "https://www.lamata-ng.com/blue-line-train-schedule/",
      "publisher": {
       "name": null,
       "domain": "lamata-ng.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. Current published timetable: Monday to Saturday, 05:30 to 21:50, 102 trips advertised daily, 8 to 12 minutes at peak. Page carries no revision date; a real-time tracking claim on the page was not verified.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-c7097e6b0de0ec74",
      "title": "LAMATA Train Services (operator)",
      "url": "https://www.lamata-ng.com/train-services/",
      "publisher": {
       "name": null,
       "domain": "lamata-ng.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. Source of the design-capacity figures: the full 27 km, thirteen-station line was designed for 400,000 daily passengers rising to 700,000. Also describes a 25-year concession model for rolling stock, operations and maintenance.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-5ebe02f6a7f1cd0f",
      "title": "Nairametrics (press)",
      "url": "https://nairametrics.com/2024/03/15/lagos-blue-line-rail-upgrades-with-new-power-plant/",
      "publisher": {
       "name": null,
       "domain": "nairametrics.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2024-03-15",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. Independent confirmation of the three-tier power arrangement and the Viathan, Advad and Lampturnkey consortium; says the plant was in the testing phase. A BusinessDay headline puts the plant at 18 MW but that article returned HTTP 403 on two attempts, so the figure is not used.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-f184259564279b07",
      "title": "Premium Times via allAfrica (press)",
      "url": "https://allafrica.com/stories/202605130058.html",
      "publisher": {
       "name": null,
       "domain": "allafrica.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-8a8f8926b8ddc112"
      ],
      "temporal": {
       "publishedAt": "2026-05-12",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK via the allAfrica syndication; the original premiumtimesng.com URL returned an empty body. Verifies 3.5 million passengers in 2025, about 15,000 daily riders, and the 57 to 72 to 90 trip progression, attributed to Commissioner Oluwaseun Osiyemi at the 12 May 2026 ministerial briefing.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-81956993f26b6e13",
      "title": "Nairametrics (press)",
      "url": "https://nairametrics.com/2026/07/16/lagos-blue-line-records-8-million-passengers-phase-ii-installs-first-t-beam/",
      "publisher": {
       "name": null,
       "domain": "nairametrics.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-c9dd9252f1da21e1"
      ],
      "temporal": {
       "publishedAt": "2026-07-16",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. Currency check, 16 July 2026: over 8 million passengers in more than 1,000 days; Phase II first precast T-beam installed on the 14 km, six-station Mile 2 to Okokomaiko extension. The claim that CCECC built and operates the line is CCECC's own, made on its official channel.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-3c1575d59040c24e",
      "title": "New Dawn Nigeria (press)",
      "url": "https://www.newdawnngr.com/2026/06/30/nrc-grants-lamata-permanent-rail-operating-licence-paving-the-way-for-major-expansion-of-lagos-red-line-2/",
      "publisher": {
       "name": null,
       "domain": "newdawnngr.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-6bc65f3e203cd3ea"
      ],
      "temporal": {
       "publishedAt": "2026-06-30",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. Verifies the federal licence: 30 June 2026, 15-year validity, covering the Red Line, the Blue Line and future LAMATA corridors, with only a Government Inspector of Railways inspection needed for new corridors. Also gives 94 daily Blue Line trips.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-1b2d524c47491642",
      "title": "PLAC (legislative analysis)",
      "url": "https://placng.org/Legist/constitution-alteration-on-prisons-railways-starts-off-push-for-devolution-of-powers/",
      "publisher": {
       "name": null,
       "domain": "placng.org",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-97f1df626e722931"
      ],
      "temporal": {
       "publishedAt": "2023-04-06",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. Verifies that the Fifth Alteration (No. 32) Act, assented March 2023, moved railways from the exclusive to the concurrent legislative list and empowered states to establish, operate and maintain a state railway carrier.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-508b508ddd5ee9d8",
      "title": "Railway Technology (trade press)",
      "url": "https://www.railway-technology.com/projects/lagosrailmasstransit/",
      "publisher": {
       "name": null,
       "domain": "railway-technology.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. Project description naming CCECC as builder and listing an operations control centre, SCADA and ATP with in-cab signalling — written in future tense before opening, so treated as planned rather than confirmed delivered. Its cost estimates conflict with state figures and are not used.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-ac8324b91b5ca4d0",
      "title": "Punch (press)",
      "url": "https://punchng.com/pictorial-sanwo-olu-unveils-three-new-trains-doubles-capacity/",
      "publisher": {
       "name": null,
       "domain": "punchng.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2025-06-08",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. 8 June 2025: three new four-car trainsets commissioned, with Governor Sanwo-Olu saying the addition doubles Blue Line passenger capacity — the basis for treating rolling stock, not infrastructure, as the constraint on service.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-3a92da2eca816cc2",
      "title": "Wikipedia (reference)",
      "url": "https://en.wikipedia.org/wiki/Blue_Line_(Lagos_Transit)",
      "publisher": {
       "name": null,
       "domain": "en.wikipedia.org",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2023-09-04",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-26",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Fetched OK. Used only for uncontroversial route facts: 4 September 2023 opening, the five phase-one stations, 27 km full length, CRRC Dalian Class 210 rolling stock. Its fleet count of 15 sets appears to be the order rather than sets in service and is not used.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 5,
     "claimsMapped": 5,
     "sourcesTotal": 11,
     "sourcesUsedByClaims": 5,
     "sourcesWithPublicationDate": 8,
     "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."
    ]
   }
  }
 ]
}