{
 "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": "hangzhou-airport-facial-recognition",
  "title": "Xiaoshan Airport Facial-Recognition Security & One-ID Travel",
  "canonicalUrl": "https://1001smartcities.org/projects/hangzhou-airport-facial-recognition/"
 },
 "currentRevisionId": "2026-08-27-claims-and-sources",
 "revisions": [
  {
   "id": "2026-08-27-claims-and-sources",
   "createdAt": "2026-08-27T03:29:14Z",
   "effectiveAt": "2026-08-02",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 11 claims and 4 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:e5c3fc7832a95e970dcca6a7fc17835793788bb0e9c69151b07d41b5a8c48ef0",
   "snapshot": {
    "asOf": "2026-08-02",
    "projectFingerprint": "sha256:3f4780a548424c472db6cdea946d58dddbf50892f02557d74f273c4a8d71f9f2",
    "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": "succeeded",
     "evidenceGrade": "media",
     "timeline": {
      "started": 2018,
      "ended": null
     }
    },
    "governance": {
     "operator": "Zhejiang Airport Group / Hangzhou Xiaoshan International Airport, using Alibaba Cloud's ET Aviation Brain",
     "actorTypes": [
      "regional-government"
     ],
     "fundingModel": "ppp",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-6565d21a6e781138",
      "field": "snippet",
      "text": "adopted Alibaba Cloud's 'ET Aviation Brain' facial-recognition identity checks in its T3 terminal from June 2018",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8ad831b43f777fab",
       "src-98004da10d1786e6"
      ],
      "supportNote": "Both July 2018 reports describe the ET Aviation Brain facial-recognition identity check running in Xiaoshan's T3 terminal, in service since June 2018.",
      "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-00db25c071ebd46a",
      "field": "snippet",
      "text": "cutting the identity-check step at security from a manual look-and-compare to about 3 seconds per passenger with a claimed 99.6%+ match accuracy",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-98004da10d1786e6"
      ],
      "supportNote": "The China News report gives the three-second per-passenger check time and the 99.6%-plus match rate; the accuracy figure is stated by the operator and its supplier, not independently measured.",
      "caveat": "The 99.6% figure is a vendor specification. No false-match or false-reject rate for the deployed system has been published.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-8210bcc5dd4743a1",
      "field": "snippet",
      "text": "in its first month the system caught five travellers using someone else's ID",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8ad831b43f777fab"
      ],
      "supportNote": "The Hangzhou News report states that five passengers travelling on another person's identity document were detected in the first month of operation.",
      "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-311110e3e0e79e18",
      "field": "snippet",
      "text": "By the end of 2022 the airport extended this into full 'one-ID travel' for domestic departures — passengers check bags, clear security and board using only their ID card, without a paper boarding pass or QR code",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-72e480bd40565055"
      ],
      "supportNote": "The municipal announcement of 30 December 2022 describes domestic departing passengers completing bag drop, security and boarding with the identity card alone.",
      "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-b8c5724dccc4f6eb",
      "field": "snippet",
      "text": "international departures gained electronic boarding passes in December 2024",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0f284f390923385a"
      ],
      "supportNote": "The Xiaoshan district announcement of 18 December 2024 covers the extension of electronic boarding passes to international departures.",
      "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-d1b51c4195151c2c",
      "field": "snippet",
      "text": "The airport is run by the provincial Zhejiang Airport Group, not the city government",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-72e480bd40565055"
      ],
      "supportNote": "The municipal announcement attributes the airport and the one-ID rollout to Zhejiang Airport Group, the provincial operator, rather than to a city department.",
      "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-fb9980e2ef832822",
      "field": "impact",
      "text": "Identity check time cut to ~3 seconds per passenger versus manual comparison, claimed accuracy above 99.6%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-98004da10d1786e6"
      ],
      "supportNote": "Same source as the snippet claim: three seconds per passenger, accuracy above 99.6% as stated by operator and supplier.",
      "caveat": "Accuracy is an operator/supplier claim; no error rate for the deployed system is public.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-0c107aef4da16670",
      "field": "impact",
      "text": "caught 5 people travelling on someone else's ID in the technology's first month at T3 (2018)",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8ad831b43f777fab"
      ],
      "supportNote": "The July 2018 report gives five detections in the first month at T3.",
      "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-8058800e7f371726",
      "field": "impact",
      "text": "full domestic 'one-ID' coverage achieved by end of 2022",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-72e480bd40565055"
      ],
      "supportNote": "The municipal announcement of 30 December 2022 reports domestic one-ID travel as complete.",
      "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-bbe909342dd63ceb",
      "field": "lesson",
      "text": "the 99.6% match accuracy is a supplier specification, and no false-match or false-reject rate has been published for the deployed system",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-98004da10d1786e6"
      ],
      "supportNote": "The accuracy figure appears only as a stated specification alongside the supplier's name; none of the four sources publishes an error rate measured in service.",
      "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-905b547f9a50c705",
      "field": "lesson",
      "text": "the airport belongs to the provincial Zhejiang Airport Group, so the city's most-cited facial-recognition installation is not run by the city at all",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-72e480bd40565055"
      ],
      "supportNote": "The municipal announcement itself names the provincial group as operator.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-8ad831b43f777fab",
      "title": "Hangzhou News — facial recognition security",
      "url": "https://hznews.hangzhou.com.cn/jingji/content/2018-07/14/content_7035678.htm",
      "publisher": {
       "name": null,
       "domain": "hznews.hangzhou.com.cn",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-6565d21a6e781138",
       "clm-8210bcc5dd4743a1",
       "clm-0c107aef4da16670"
      ],
      "temporal": {
       "publishedAt": "2018-07-14",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-09-02",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Launch date (June 2018), 3-second processing time, 99.6% accuracy claim, 5-passenger catch figure in first month.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-98004da10d1786e6",
      "title": "China News — 3-second security check",
      "url": "https://www.chinanews.com.cn/m/cj/2018/07-14/8566677.shtml",
      "publisher": {
       "name": null,
       "domain": "chinanews.com.cn",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-6565d21a6e781138",
       "clm-00db25c071ebd46a",
       "clm-fb9980e2ef832822",
       "clm-bbe909342dd63ceb"
      ],
      "temporal": {
       "publishedAt": "2018-07-14",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-09-02",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Independent press corroboration of the same facts.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-72e480bd40565055",
      "title": "Hangzhou Municipal Government — one-ID travel",
      "url": "https://www.hangzhou.gov.cn/art/2022/12/30/art_812269_59071212.html",
      "publisher": {
       "name": null,
       "domain": "hangzhou.gov.cn",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-311110e3e0e79e18",
       "clm-d1b51c4195151c2c",
       "clm-8058800e7f371726",
       "clm-905b547f9a50c705"
      ],
      "temporal": {
       "publishedAt": "2022-12-30",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-09-02",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Confirms full domestic 'one-ID' departure coverage achieved by end of 2022.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-0f284f390923385a",
      "title": "Xiaoshan District Government — electronic boarding pass",
      "url": "https://www.xiaoshan.gov.cn/art/2024/12/18/art_1302906_59106628.html",
      "publisher": {
       "name": null,
       "domain": "xiaoshan.gov.cn",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-b8c5724dccc4f6eb"
      ],
      "temporal": {
       "publishedAt": "2024-12-18",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-09-02",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "December 2024 international-departure electronic boarding pass extension, confirming the system is still live and expanding.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 11,
     "claimsMapped": 11,
     "sourcesTotal": 4,
     "sourcesUsedByClaims": 4,
     "sourcesWithPublicationDate": 4,
     "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."
    ]
   }
  }
 ]
}