{
 "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": "mexico-city-c5",
  "title": "C5 Camera, Panic-Button and Seismic-Alert Network",
  "canonicalUrl": "https://1001smartcities.org/projects/mexico-city-c5/"
 },
 "currentRevisionId": "2026-08-20-source-dates",
 "revisions": [
  {
   "id": "2026-08-20-source-dates",
   "createdAt": "2026-08-20T00:00:00Z",
   "effectiveAt": "2026-07-26",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 1 claim and 10 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": "sha256:8d0ea1b7743f4c95989a0473efc8c1febe1b47190b03200e490c713ce816b12f",
   "snapshot": {
    "asOf": "2026-07-26",
    "projectFingerprint": "sha256:4c4e6fc1dcaeedc3a7bda9faf1450b0f2af4d6055715ad0017edbb0575afc7bb",
    "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": 2009,
      "ended": null
     }
    },
    "governance": {
     "operator": "Centro de Comando, Control, Computo, Comunicaciones y Contacto Ciudadano de la Ciudad de Mexico (C5)",
     "actorTypes": [
      "city-government"
     ],
     "fundingModel": "public",
     "fundingDescription": "Mexico City government budget",
     "cost": "≈US$459M for the 2009-11 Ciudad Segura build; ≈MX$13bn (US$660M) on infrastructure and software by 2021; MX$600M for the 2025 camera batch",
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-e1e050f4759a8434",
      "field": "impact",
      "text": "a 2025 study links the camera programme to a significant fall in pedestrian robbery (2018-2019 data)",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-3bae10ed1e321a82"
      ],
      "supportNote": "The impact itself describes the peer-reviewed findings as split.",
      "caveat": "A 2023 study found no effect on delivery robberies from the 2019 MiCalle expansion, and police use camera footage in under 1% of investigations.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-b30133901cb61acd",
      "title": "C5 CDMX — Difusión de la Alerta Sísmica desde los postes del C5 (operator)",
      "url": "https://www.c5.cdmx.gob.mx/comunicacion/nota/difusion-de-la-alerta-sismica-desde-los-postes-del-c5",
      "publisher": {
       "name": null,
       "domain": "c5.cdmx.gob.mx",
       "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": "Operator page: 13,934 C5 poles reproduce the seismic alert through their speakers, each covering up to 200 m, across all 16 boroughs. The c5.cdmx.gob.mx domain returned 503 to automated fetching on 2026-07-26; figure corroborated by IMER Noticias and Milenio coverage of the annual speaker tests.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-09945aa96e485fcc",
      "title": "C5 CDMX — Boton de Auxilio (operator)",
      "url": "https://www.c5.cdmx.gob.mx/canales-de-atencion-emergencias/boton-de-auxilio",
      "publisher": {
       "name": null,
       "domain": "c5.cdmx.gob.mx",
       "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": "Operator definition of the artefact: 'El Boton de auxilio es un intercomunicador de contacto directo con los C2' — press once, an operator at a C2 answers by intercom, files a report and dispatches the relevant emergency service. Page 503s to automated fetching; wording matched by TV Azteca and Telediario explainers.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-62eccbeed742017c",
      "title": "Mediotiempo — CDMX se blinda rumbo al Mundial 2026 (23 Mar 2026)",
      "url": "https://www.mediotiempo.com/futbol/copa-mundial/cdmx-se-blinda-rumbo-al-mundial-2026-119-mil-camaras-una-estrategia-apunta-saldo-blanco",
      "publisher": {
       "name": null,
       "domain": "mediotiempo.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2026-03-23",
       "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": "C5 coordinator Salvador Guerrero Chipres: 'Estamos hablando de 113 mil 814 camaras, y antes del Mundial yo creo que vamos a llegar a 119 mil camaras' ('113,814 cameras, and before the World Cup I think we will reach 119,000'). Same piece: seven C2 centres 'distribuidos estrategicamente' for faster territorial response, and 29 participating institutions.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-632abf2cddb3ee81",
      "title": "Expansion Politica — C5 va por 40,200 camaras en 2025 (8 May 2025)",
      "url": "https://politica.expansion.mx/cdmx/2025/05/08/c5-va-por-40-200-camaras-en-2025-cdmx-sera-la-mas-videovigilada-de-america",
      "publisher": {
       "name": null,
       "domain": "politica.expansion.mx",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2025-05-08",
       "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": "'Actualmente operan 83,414 camaras distribuidas en las 16 alcaldias'; MX$600M for 40,200 new cameras; totems ~MX$75,000 each with panic button and strobe, intelligent poles over MX$500,000 with 'boton de auxilio, internet gratuito y sistema de alertamiento sismico'. Also the source for the operator statement that the cameras do not store biometric data.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-d67e7b7d37cbe78e",
      "title": "Rest of World — Where surveillance cameras work, but the justice system doesn't (19 Jan 2021)",
      "url": "https://restofworld.org/2021/mexico-city-security-theater/",
      "publisher": {
       "name": null,
       "domain": "restofworld.org",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2021-01-19",
       "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": "Reporting the Data Civica and R3D analysis: 'approximately 60% of crimes in the city take place within 200 meters of a C5 camera, but police use C5 footage in less than 1% of investigations.' Also 'The city has spent more than $660 million (about MX$13 billion) in total on the infrastructure and software.' Spanish version republished by Animal Politico.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-308ce6270636b4be",
      "title": "Applied Geography — Testing the local and spatial spillover effects of police monitored CCTV systems on crime (2023)",
      "url": "https://www.sciencedirect.com/science/article/abs/pii/S0143622823000048",
      "publisher": {
       "name": null,
       "domain": "sciencedirect.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": "Peer-reviewed difference-in-differences spatial panel on the MiCalle rollout (from mid-2019, poles in the 333 highest-crime neighbourhoods): 'no evidence connecting delivery robbery crime rates to the Mexico City MiCalle program', which 'has been geographically unfocused and appears to have been ineffective in reducing delivery robberies.' Publisher page returned 403 to automated fetching; abstract read via the search index.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-3bae10ed1e321a82",
      "title": "Rev. Cientifica General Jose Maria Cordova 23(51) — Video surveillance in Mexico City and its impact on reducing crime (2025)",
      "url": "https://revistacientificaesmic.com/index.php/esmic/article/view/1507",
      "publisher": {
       "name": null,
       "domain": "revistacientificaesmic.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-e1e050f4759a8434"
      ],
      "temporal": {
       "publishedAt": "2025-08-20",
       "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": "Diaz-Roman, Jasso-Gonzalez and Diaz-Guarneros, on 2018-2019 crime and socioeconomic data: 'the video surveillance policy implemented in Mexico City is associated with a significant decrease in robberies, supporting its deterrent effect', while noting the effect depends on residential stability and complementary policy.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": "https://web.archive.org/web/20250904154630/https://revistacientificaesmic.com/index.php/esmic/article/view/1507",
       "archivedAt": "2025-09-04",
       "contentHash": null,
       "status": "archive-linked"
      }
     },
     {
      "id": "src-346269c54aeadcb5",
      "title": "El Universal — Mal uso de botones de auxilio alcanza 60% (11 Feb 2026)",
      "url": "https://www.eluniversal.com.mx/metropoli/mal-uso-de-botones-de-auxilio-alcanza-60-c5-piden-reforzar-cultura-civica-en-cdmx/",
      "publisher": {
       "name": null,
       "domain": "eluniversal.com.mx",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2026-02-11",
       "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": "'El 60 % de las activaciones de los botones de auxilio del Centro de Comando, Control, Computo, Comunicaciones y Contacto Ciudadano (C5) es por mal uso' — 60% of panic-button activations are misuse, against 70% a year earlier. C5 figures reported by the press, not an independent audit.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-35321e52ec658025",
      "title": "Excelsior — C-5 se renueva con reconocimiento facial y lectura de placas (8 Aug 2019)",
      "url": "https://www.excelsior.com.mx/comunidad/c-5-se-renueva-con-reconocimiento-facial-y-lectura-de-placas/1329309",
      "publisher": {
       "name": null,
       "domain": "excelsior.com.mx",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2019-08-08",
       "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": "Then-coordinator Juan Manuel Garcia Ortegon on 18,500 new HD cameras: 'reconocimiento facial, como la lectura automatica de placas que ahora se pueden integrar porque tendremos un software nuevo' — announced as a planned capability. No source found confirming facial recognition in operation on the CDMX network; the confirmed deployment is the neighbouring State of Mexico's separate Nexus system (Jan 2026).",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-40a13945b348e472",
      "title": "Infodefensa — Thales y Telmex se adjudican el proyecto Ciudad Segura (12 Mar 2009)",
      "url": "https://www.infodefensa.com/latam/2009/03/12/noticia-thales-y-telmex-se-adjudican-el-proyecto-%60ciudad-segura-para-mexico-df-con-una-inversion-de-460-millones-de-dolares.html",
      "publisher": {
       "name": null,
       "domain": "infodefensa.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2009-03-12",
       "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": "Origin of the network and the basis for yearStart 2009: the Ciudad Segura contract awarded to Telmex with Thales at about US$460M, building 8,000 simultaneous video-surveillance points; 8,088 STV masts were installed from 2009 under the CAEPCCM, the C5's predecessor.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 1,
     "claimsMapped": 1,
     "sourcesTotal": 10,
     "sourcesUsedByClaims": 1,
     "sourcesWithPublicationDate": 7,
     "sourcesWithArchive": 1,
     "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."
    ]
   }
  }
 ]
}