{
 "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": "busan-eco-delta",
  "title": "Busan Eco Delta Smart City",
  "canonicalUrl": "https://1001smartcities.org/projects/busan-eco-delta/"
 },
 "currentRevisionId": "2026-09-27-baseline-popular",
 "revisions": [
  {
   "id": "2026-09-27-baseline-popular",
   "createdAt": "2026-09-27T13:05:00Z",
   "effectiveAt": "2026-09-27",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 6 claims and 4 source dossiers.",
   "preparedBy": {
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    "label": "AI-assisted evidence preparation",
    "humanApproved": false
   },
   "review": {
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    "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."
    }
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   "snapshot": {
    "asOf": "2026-09-27",
    "projectFingerprint": "sha256:06ac11ccbf6f396aa3e99f6b208c37e3654a76c14809b434fb6d16575717bd0a",
    "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": "construction",
     "outcome": "ongoing",
     "evidenceGrade": "independent",
     "timeline": {
      "started": 2019,
      "ended": null
     }
    },
    "governance": {
     "operator": "Busan Metropolitan City & K-water (LG CNS-led private consortium)",
     "actorTypes": [
      "city-government",
      "utility",
      "private"
     ],
     "fundingModel": "ppp",
     "fundingDescription": "Public-private: Busan City, K-water & private consortium (LG CNS et al.)",
     "cost": "≈₩5.6 trillion (total programme)",
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-805885974e73e3f6",
      "field": "snippet",
      "text": "Busan Eco Delta City's master plan targets 76,000 residents across 11.8 sq km",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
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      ],
      "supportNote": "The city's overview gives the Eco Delta City area as 11.8 km² and a target population of 76,000 people in 30,000 households, on a 2012–2028 schedule.",
      "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-c164e2a721ce3ba3",
      "field": "snippet",
      "text": "a 2.8 sq km national smart-city pilot",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-405172d90a556aeb",
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      ],
      "supportNote": "The Centre for Liveable Cities says a 2.8 km² area of Eco Delta City was identified as a pilot site under South Korea's National Pilot Smart City Project; Munhwa Ilbo gives the same 2.8 km² for the ₩5.6 trillion national pilot.",
      "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-ce11ad12d5809e89",
      "field": "snippet",
      "text": "runs a Smart Village living lab where 56 households (200 residents)",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
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      "supportNote": "The CLC describes the Smart Village as the first residential complex of the national pilot, doubling as a living lab, unveiled in December 2021 and housing 56 households of 200 residents.",
      "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-ee3aea336400021c",
      "field": "snippet",
      "text": "trade behavioural data for rent-free stays",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
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      ],
      "supportNote": "Residents are volunteers who live rent-free for three years, with an option to extend by two more, in exchange for feedback and data on energy use, health, appliance use and other behaviour.",
      "caveat": "The rent-free period is three years with an optional two-year extension, counted from the village's opening in December 2021.",
      "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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      "field": "snippet",
      "text": "since November 2025 two apartment complexes in the district have tested patrol, barista, luggage-carrying and cleaning robots",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-50a961abf18461dd",
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      ],
      "supportNote": "Both papers report the opening on 16 November 2025 of a robot pilot in two Eco Delta apartment complexes with four robot types — patrol, barista, luggage-carrying and cleaning; Busan Ilbo adds that each complex received six robots, that test operation began that day and that formal service is planned for the following year.",
      "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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      "field": "lesson",
      "text": "the Smart Village exists to decide which of its technologies the wider district adopts",
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      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
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      ],
      "supportNote": "The CLC states that the data collected from residents will be used to assess and validate whether the Smart Village's technologies and services can be applied throughout Eco Delta City.",
      "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-405172d90a556aeb",
      "title": "Centre for Liveable Cities, Singapore — Smart Village box story (independent)",
      "url": "https://knowledgehub.clc.gov.sg/liveability-in-action/box-story--busan-eco-delta-city/",
      "publisher": {
       "name": null,
       "domain": "knowledgehub.clc.gov.sg",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
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       "recordLastVerifiedAt": "2026-09-27",
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      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Smart Village: 56 households / 200 residents, rent-free data-trade living lab.",
       "exact": false
      },
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     {
      "id": "src-56b53dfb1ed64af4",
      "title": "Busan Metropolitan City — Eco Delta overview (authority)",
      "url": "https://www.busan.go.kr/eng/ecodelta01",
      "publisher": {
       "name": null,
       "domain": "busan.go.kr",
       "classification": "not-classified"
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      "role": "claim-evidence",
      "claimRefs": [
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      "temporal": {
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      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Master plan: 76,000 residents / 30,000 households across 11.8 km².",
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      },
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       "contentHash": null,
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     },
     {
      "id": "src-50a961abf18461dd",
      "title": "Busan Ilbo — robots arrive at Eco Delta (17 Nov 2025)",
      "url": "https://www.busan.com/view/busan/view.php?code=2025111718354782779",
      "publisher": {
       "name": null,
       "domain": "busan.com",
       "classification": "not-classified"
      },
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      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
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      "temporal": {
       "publishedAt": "2025-11-17",
       "updatedAt": null,
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       "recordLastVerifiedAt": "2026-09-27",
       "dossierCreatedAt": "2026-09-27",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Two apartment complexes in Eco Delta City (Hoban Summit and Sujain) each received six robots of four types — barista, patrol, cleaning and luggage-carrying — on 16 November 2025, starting test operation with formal service planned for the following year.",
       "exact": false
      },
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       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-91313781862512f3",
      "title": "Munhwa Ilbo — Busan Eco Delta smart city gets under way (17 Nov 2025)",
      "url": "https://www.munhwa.com/article/11547290",
      "publisher": {
       "name": null,
       "domain": "munhwa.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
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      "temporal": {
       "publishedAt": "2025-11-17",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-09-27",
       "dossierCreatedAt": "2026-09-27",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The national pilot is a ₩5.6 trillion, 2.8 km² project run by the special-purpose company Smart City Busan, owned by Busan City, K-water and Busan Metropolitan Corporation with eleven firms including LG CNS; robot services opened in two complexes on 16 November 2025.",
       "exact": false
      },
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    ],
    "coverage": {
     "claimsTotal": 6,
     "claimsMapped": 6,
     "sourcesTotal": 4,
     "sourcesUsedByClaims": 4,
     "sourcesWithPublicationDate": 2,
     "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."
    ]
   }
  }
 ]
}