{
 "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": "medellin-sies-m",
  "title": "SIES-M Integrated Emergency & Security Camera Network",
  "canonicalUrl": "https://1001smartcities.org/projects/medellin-sies-m/"
 },
 "currentRevisionId": "2026-08-20-source-dates",
 "revisions": [
  {
   "id": "2026-08-20-source-dates",
   "createdAt": "2026-08-20T19:29:52Z",
   "effectiveAt": "2026-07-30",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 1 claim and 3 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": "sha256:9f6548f124d9fc53be45552f73da5ad4bcc09e2aa520177edc6ade98157b6060",
   "snapshot": {
    "asOf": "2026-07-30",
    "projectFingerprint": "sha256:80e34702797680616a04661dc1eefa311eebb8c48f09840747bf8ae539dae420",
    "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": 2011,
      "ended": null
     }
    },
    "governance": {
     "operator": "Secretaría de Seguridad y Convivencia de Medellín / Policía Nacional",
     "actorTypes": [
      "city-government",
      "national-government"
     ],
     "fundingModel": "public",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-3bf6bb74696c2b2c",
      "field": "impact",
      "text": "a 26% drop in violent crime and a 17% drop in property crime within 120 meters of a camera, with no measurable displacement to nearby blocks",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e7685647ef91ea64"
      ],
      "supportNote": null,
      "caveat": "The entry's lesson warns this camera-specific deterrent effect does not explain Medellín's much larger multi-decade homicide decline, which has many non-technological drivers.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-736c68b69ec6e052",
      "title": "SIES-M — Alcaldía de Medellín",
      "url": "https://www.medellin.gov.co/es/secretaria-seguridad/siesm/",
      "publisher": {
       "name": null,
       "domain": "medellin.gov.co",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2021-09-17",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-30",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Official operator page: current camera breakdown (3,230+), agencies, technology components.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-eee17bd3b7cb1986",
      "title": "El Colombiano — SIES-M inaugurada el 24 de octubre de 2011",
      "url": "https://www.elcolombiano.com/historico/sistema_integrado_de_emergencias_y_seguridad_metropolitano_fue_inaugurado_en_medellin-FYEC_155415",
      "publisher": {
       "name": null,
       "domain": "elcolombiano.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2011-10-24",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-30",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Launch date, initial ~350-camera count, COP 26 billion cost.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-e7685647ef91ea64",
      "title": "Gómez, Mejía & Tobón (2021), J. of Policy Analysis and Management",
      "url": "https://onlinelibrary.wiley.com/doi/10.1002/pam.22280",
      "publisher": {
       "name": null,
       "domain": "onlinelibrary.wiley.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-3bf6bb74696c2b2c"
      ],
      "temporal": {
       "publishedAt": "2021-01-05",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-30",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Peer-reviewed quasi-experimental evaluation of Medellín's 2013-2018 camera rollout.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 1,
     "claimsMapped": 1,
     "sourcesTotal": 3,
     "sourcesUsedByClaims": 1,
     "sourcesWithPublicationDate": 3,
     "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."
    ]
   }
  }
 ]
}