{
 "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": "campo-grande-water-loss-control",
  "title": "Águas Guariroba: Sectorised Network Telemetry and a One-Fifth Loss Rate",
  "canonicalUrl": "https://1001smartcities.org/projects/campo-grande-water-loss-control/"
 },
 "currentRevisionId": "2026-08-20-source-dates",
 "revisions": [
  {
   "id": "2026-08-20-source-dates",
   "createdAt": "2026-08-20T19:16:27Z",
   "effectiveAt": "2026-08-10",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 1 claim and 5 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": "sha256:9f8ad63c907221c3285d2022d686a917b992d53d19cb81cdaca7cd8ad2a43e08",
   "snapshot": {
    "asOf": "2026-08-10",
    "projectFingerprint": "sha256:533787a718faaa3f350f3c02a6936892417197eff90f2dae25279f5e1b8e6b3c",
    "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": "independent",
     "timeline": {
      "started": 2006,
      "ended": null
     }
    },
    "governance": {
     "operator": "Águas Guariroba S.A. (Aegea Saneamento), municipal water and sewerage concessionaire",
     "actorTypes": [
      "city-government"
     ],
     "fundingModel": null,
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-b9a8b07756a952a5",
      "field": "impact",
      "text": "puts Campo Grande's distribution losses at 20.69% — third lowest of Brazil's 27 capitals, against a capital average of 39.30%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-4a97b75852ef4d53"
      ],
      "supportNote": "The same Trata Brasil study that grades Manaus reports Campo Grande's loss rate and its rank among the 27 state capitals — the two cities share a concession group and sit at opposite ends of the table.",
      "caveat": "The 56% starting point in the same impact line is the operator's own figure, not the study's.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-4a97b75852ef4d53",
      "title": "Instituto Trata Brasil — Estudo Perdas de Água 2026 (SINISA 2024)",
      "url": "https://tratabrasil.org.br/perdas-de-agua-2026/",
      "publisher": {
       "name": null,
       "domain": "tratabrasil.org.br",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-b9a8b07756a952a5"
      ],
      "temporal": {
       "publishedAt": "2026-06-01",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-10",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The independent study itself, by Instituto Trata Brasil with GO Associados, based on SINISA 2024 returns. Landing page carries the full study and press release; the ranking tables are inside the PDF.",
       "exact": false
      },
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       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-4dadb5a40366fd9d",
      "title": "Diário Digital — Campo Grande está entre as capitais que menos perdem água no país (26/07/2026)",
      "url": "https://www.diariodigital.com.br/geral/campo-grande-esta-entre-as-capitais-que-menos-perdem-agua-no-pais",
      "publisher": {
       "name": null,
       "domain": "diariodigital.com.br",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2026-07-26",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-10",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Non-operator confirmation of the study figures: 'índice de apenas 20,69% de perdas na distribuição', 'a terceira colocação entre todas as capitais do país', 172,03 L/ligação/dia against a capital average of 547,63.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-388133fde2b1402a",
      "title": "Águas Guariroba — Águas Guariroba investe em eficiência operacional (05/06/2024)",
      "url": "https://www.aguasguariroba.com.br/aguas-guariroba-investe-em-programa-de-reducao-de-perdas-e-capital-e-a-2a-do-brasil-com-menor-indice-de-perdas/",
      "publisher": {
       "name": null,
       "domain": "aguasguariroba.com.br",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2024-06-05",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-10",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Operator source for the hardware counts: 62 VRPs, 197 network pressure sensors, 185 modernised macromedidores, 381,800 household meters replaced, TaKaDu; 'Quando assumimos a concessão em Campo Grande, imediatamente implantamos um Programa de Redução de Perdas'; 56% (2006) to 19,7% (2024).",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-d13df804671b9edb",
      "title": "Águas Guariroba — Utilização de tecnologia com IA para monitoramento (28/06/2022)",
      "url": "https://www.aguasguariroba.com.br/utilizacao-de-tecnologia-com-ia-para-monitoramento-sao-destaque-na-reducao-de-perdas-de-agua-em-campo-grande/",
      "publisher": {
       "name": null,
       "domain": "aguasguariroba.com.br",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2022-06-28",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-10",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Establishes that the CCO and TaKaDu were already in use by mid-2022 ('identificando de forma dinâmica qualquer anomalia que ocorra na rede'), and describes the AI sound-triage geophone work as a field pilot at that date, not a deployed system.",
       "exact": false
      },
      "preservation": {
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       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-cce15407371b8cdb",
      "title": "Águas Guariroba — Campo Grande é a 3ª cidade do Brasil com menor índice de perda de água potável (14/09/2023)",
      "url": "https://www.aguasguariroba.com.br/campo-grande-e-a-3a-cidade-do-brasil-com-menor-indice-de-perda-de-agua-potavel-indica-instituto-trata-brasil/",
      "publisher": {
       "name": null,
       "domain": "aguasguariroba.com.br",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2023-09-14",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-10",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Earlier Trata Brasil edition (Perdas de Água 2023, SNIS 2021 data): 19,74% and 116,89 L/ligação/dia — the baseline the 2024 figure is compared against in the lesson.",
       "exact": false
      },
      "preservation": {
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       "contentHash": null,
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     }
    ],
    "coverage": {
     "claimsTotal": 1,
     "claimsMapped": 1,
     "sourcesTotal": 5,
     "sourcesUsedByClaims": 1,
     "sourcesWithPublicationDate": 5,
     "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."
    ]
   }
  }
 ]
}