{
 "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": "accra-ghanapostgps-digital-address",
  "title": "GhanaPostGPS National Digital Addressing System",
  "canonicalUrl": "https://1001smartcities.org/projects/accra-ghanapostgps-digital-address/"
 },
 "currentRevisionId": "2026-08-20-source-dates",
 "revisions": [
  {
   "id": "2026-08-20-source-dates",
   "createdAt": "2026-08-20T18:42:52Z",
   "effectiveAt": "2026-08-01",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 1 claim and 8 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": "sha256:66a6bc489e6c794bd020e108caa0de781b6020fb94ec1d8755710a9455a37560",
   "snapshot": {
    "asOf": "2026-08-01",
    "projectFingerprint": "sha256:e2b4f3fbe937e35fbcc1ca83eeff83708c6193ca9eb198de1a47652cacdf06ce",
    "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": "peer-reviewed",
     "timeline": {
      "started": 2017,
      "ended": null
     }
    },
    "governance": {
     "operator": "Ghana Post Company Limited (app built by Vokacom, now Afrifanom Limited)",
     "actorTypes": [
      "national-government"
     ],
     "fundingModel": "public",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-1aee4e40b68cb01b",
      "field": "impact",
      "text": "68% of property owners said they were likely to use the digital address, against 32% of renters",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d50ed1c68b9dd955"
      ],
      "supportNote": "The entry describes it as a peer-reviewed survey of 999 households in three suburban Accra communities that found owners much likelier to use the address than tenants.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
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      "title": "GhanaPostGPS official site (Ghana Post / Afrifanom Limited)",
      "url": "https://www.ghanapostgps.com/",
      "publisher": {
       "name": null,
       "domain": "ghanapostgps.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-01",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Operator, 5m x 5m grid, code format (region + district postcode plus unique square, e.g. AK-039-5028), and promoted uses: bank account and loan applications, door-to-door delivery.",
       "exact": false
      },
      "preservation": {
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       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-a043d43a01edae45",
      "title": "Graphic Online - Akufo-Addo launches National Digital Property Addressing System",
      "url": "https://www.graphic.com.gh/news/general-news/akufo-addo-launches-national-digital-property-addressing-system.html",
      "publisher": {
       "name": null,
       "domain": "graphic.com.gh",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2017-10-18",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-01",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Dates the launch to 18 October 2017 in Accra. Confirmed at search level; the page itself was not retrievable from the review sandbox.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-85d0bf0c0f22fe6b",
      "title": "National Identification Authority - registration guidelines (authority)",
      "url": "https://register.nia.gov.gh/agreement?selector=register",
      "publisher": {
       "name": null,
       "domain": "register.nia.gov.gh",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-01",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The Ghana Card requirement, in the NIA's own words: 'You are required to state the digital address code of your residence in Ghana' - and the exemption, 'This is not required if you live outside Ghana.'",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-d50ed1c68b9dd955",
      "title": "Frimpong et al. (2023), Smart and Sustainable Built Environment 12(5), 1135-1152",
      "url": "https://doi.org/10.1108/SASBE-06-2022-0121",
      "publisher": {
       "name": null,
       "domain": "doi.org",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-1aee4e40b68cb01b"
      ],
      "temporal": {
       "publishedAt": "2022-09-27",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-01",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The peer-reviewed source of the owner/renter split: cross-sectional survey of three suburban Accra communities, binary logistic regression, house ownership and education positively associated with use.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-cd1960391bda878a",
      "title": "The Conversation (22 Nov 2022) - the authors' own summary of the study",
      "url": "https://theconversation.com/ghana-digitised-its-address-system-its-failure-offers-lessons-to-other-african-countries-creating-smart-cities-194454",
      "publisher": {
       "name": null,
       "domain": "theconversation.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2022-11-22",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-01",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Carries the figures sentence-level: 999 respondents in three suburban Accra communities; 'About 68% of residents who owned properties were likely to use the digital property addressing system, and only 32% of renters.'",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-3f44b94a8f8e3f4a",
      "title": "The Labari Journal - independent reporting on the system's shortcomings",
      "url": "https://labarijournal.com/ghana-tried-to-solve-its-addressing-problems-with-a-digital-platform-the-results-have-been-subpar/",
      "publisher": {
       "name": null,
       "domain": "labarijournal.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2026-03-30",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-01",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Documents internet dependency in the first app version, differing codes generated at the front and back of the same house, and no native interface to Google Maps or other navigation apps.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-760725804d8d524e",
      "title": "Research Square preprint - 'Ghana's Digital Addressing Design - Reality Gulf' (2023)",
      "url": "https://www.researchsquare.com/article/rs-2993597/v1",
      "publisher": {
       "name": null,
       "domain": "researchsquare.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2018-02-07",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-01",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Preprint, NOT peer reviewed. Source of the emergency-button finding: a Ghana Ambulance Service informant said the feature 'did not work for emergency services during the time of the research team's interview'. Page returned 403 to the review sandbox; existence and framing confirmed at search level.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-6f9b23a171a874bd",
      "title": "Apple App Store - GhanaPostGPS (currency check, Aug 2026)",
      "url": "https://apps.apple.com/us/app/ghanapostgps/id1296627307",
      "publisher": {
       "name": null,
       "domain": "apps.apple.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2025-05-01",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-01",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Seller Ghana Post Company Limited; app still actively released (latest June 2026). Version history adds in-app 'Mijo Ride and Delivery Services' - the operator built its own ride/delivery layer rather than integrating with existing ride-hailing apps.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 1,
     "claimsMapped": 1,
     "sourcesTotal": 8,
     "sourcesUsedByClaims": 1,
     "sourcesWithPublicationDate": 6,
     "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."
    ]
   }
  }
 ]
}