{
 "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": {
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  "id": "dallas-open-data-portal",
  "title": "Dallas OpenData Portal",
  "canonicalUrl": "https://1001smartcities.org/projects/dallas-open-data-portal/"
 },
 "currentRevisionId": "2026-08-27-source-dating",
 "revisions": [
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   "id": "2026-08-27-claims-and-sources",
   "createdAt": "2026-08-27T03:51:38Z",
   "effectiveAt": "2026-08-02",
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   },
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   },
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     "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."
    }
   ],
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     "machineChecks": [
      "schema",
      "publication-diff-contract",
      "material-project-fingerprint",
      "claim-text-drift",
      "source-reference-resolution",
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     "evidenceGrade": "official",
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      "ended": null
     }
    },
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     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
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      "mappingStatus": "mapped",
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       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
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      "text": "As of this review the portal's own catalog API reports 1,087 published datasets",
      "statementKind": "quantitative",
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      "mappingStatus": "mapped",
      "sourceRefs": [
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      "supportNote": "The portal's Socrata catalog endpoint returns a resultSetSize of 1,087 for the dallasopendata.com domain.",
      "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-c9934418571560a8",
      "field": "snippet",
      "text": "Dallas has not adopted a blanket open licence such as CC0 or a public-domain dedication for the catalog — reuse is instead governed by a Terms of Use the city describes as \"a legal agreement between You and the City of Dallas\"",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
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      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
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      "id": "clm-db656daf8ad0ed1e",
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      "text": "1,087 datasets published on the Socrata-based catalog, self-counted via the portal's own catalog API at the time of this review",
      "statementKind": "quantitative",
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      "mappingStatus": "mapped",
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      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-b9e3408d0ba683d0",
      "field": "lesson",
      "text": "the version on the portal was published in 2016 and last touched in 2021",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
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      "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-de9812fe44517fea",
      "field": "lesson",
      "text": "nothing in the catalog records the answer dataset by dataset",
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      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-f83dc558f40ffe93",
       "src-a8ef8ed4245cab76"
      ],
      "supportNote": "The catalog endpoint returns no licence field for the domain's datasets, and the Terms of Use is a single site-wide document.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
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     {
      "id": "src-f83dc558f40ffe93",
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      "publisher": {
       "name": null,
       "domain": "dallasopendata.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
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      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-09-02",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "A live catalog endpoint rather than a dated document; the dataset count in this entry was read from it directly.",
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      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-a8ef8ed4245cab76",
      "title": "Dallas OpenData: Terms of Use",
      "url": "https://www.dallasopendata.com/stories/s/Terms-of-Use-for-Dallas-OpenData/5dr7-2kgq/",
      "publisher": {
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       "domain": "dallasopendata.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
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       "clm-de9812fe44517fea"
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       "status": "publication-and-record-dates-recorded"
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       "type": "descriptive-source-note",
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      },
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       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
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     "claimsMapped": 6,
     "sourcesTotal": 3,
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     "sourcesWithArchive": 0,
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    },
    "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."
    ]
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   "id": "2026-08-27-source-dating",
   "createdAt": "2026-08-27T13:37:00Z",
   "effectiveAt": "2026-08-02",
   "changeType": "correction",
   "summary": "Every source on this entry now carries a date key: a publication date where the publisher states one, otherwise an explicit null with the reason on the record.",
   "preparedBy": {
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    "date": null,
    "note": "Awaiting operator and domain-expert review; publication of this revision implies neither."
   },
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     "operation": "replace",
     "path": "/snapshot/projectFingerprint",
     "summary": "Updated projectFingerprint to the current sourced project record."
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    {
     "operation": "replace",
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     "summary": "Updated sources to the current sourced project record."
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     "exitConditions": null
    },
    "claims": [
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      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-c9934418571560a8",
      "field": "snippet",
      "text": "Dallas has not adopted a blanket open licence such as CC0 or a public-domain dedication for the catalog — reuse is instead governed by a Terms of Use the city describes as \"a legal agreement between You and the City of Dallas\"",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
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       "src-a8ef8ed4245cab76"
      ],
      "supportNote": "The Terms of Use asset states that use of the data is subject to terms of use which constitute a legal agreement between the user and the City of Dallas; no licence is named there or in the catalog metadata.",
      "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-db656daf8ad0ed1e",
      "field": "impact",
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      "mappingStatus": "mapped",
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       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
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     },
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       "interpolation": false,
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     },
     {
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      "field": "lesson",
      "text": "nothing in the catalog records the answer dataset by dataset",
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       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
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     {
      "id": "src-f83dc558f40ffe93",
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      "publisher": {
       "name": null,
       "domain": "dallasopendata.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
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       "clm-db656daf8ad0ed1e",
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      "temporal": {
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       "updatedAt": null,
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       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-27",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "A live catalog endpoint rather than a dated document; the dataset count in this entry was read from it directly. The page states no publication date.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-a8ef8ed4245cab76",
      "title": "Dallas OpenData: Terms of Use",
      "url": "https://www.dallasopendata.com/stories/s/Terms-of-Use-for-Dallas-OpenData/5dr7-2kgq/",
      "publisher": {
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       "classification": "not-classified"
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      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
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       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "governs data reuse; no site-wide open-license dedication (e.g. CC0) was found",
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      },
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       "contentHash": null,
       "status": "not-captured"
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     }
    ],
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     "claimsMapped": 6,
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     "sourcesUsedByClaims": 3,
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    },
    "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."
    ]
   }
  }
 ]
}