{
 "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": "kashiwanoha-smart-city",
  "title": "Kashiwa-no-ha Smart City",
  "canonicalUrl": "https://1001smartcities.org/projects/kashiwanoha-smart-city/"
 },
 "currentRevisionId": "2026-08-27-p1-quality-uplift",
 "revisions": [
  {
   "id": "2026-08-20-source-dates",
   "createdAt": "2026-08-20T19:29:52Z",
   "effectiveAt": "2026-08-02",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 1 claim and 2 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:f745e4778d57c720bbf67f442251ee5f149e708804d8969adbac2025756e4274",
   "snapshot": {
    "asOf": "2026-08-02",
    "projectFingerprint": "sha256:205b78addc861161d98870170bf446b50e73a3935c1f6e3e623f743b6912f8fb",
    "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": 2014,
      "ended": null
     }
    },
    "governance": {
     "operator": "Urban Design Center Kashiwa-no-ha (UDCK)",
     "actorTypes": [
      "city-government",
      "research",
      "private"
     ],
     "fundingModel": "mixed",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-9080b5cec0d26223",
      "field": "impact",
      "text": "The district received LEED for Neighborhood Development Platinum certification in November 2016 — the U.S. Green Building Council's top rating and, per the developer, the first Japanese development to receive it",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e6a139c42db923f0"
      ],
      "supportNote": null,
      "caveat": "The \"first Japanese development to receive it\" superlative is the developer's own attribution, marked as such in the entry.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-e6a139c42db923f0",
      "title": "Kashiwa-no-ha Smart City (operator)",
      "url": "https://www.kashiwanoha-smartcity.com/",
      "publisher": {
       "name": null,
       "domain": "kashiwanoha-smartcity.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-9080b5cec0d26223"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Official site of the organisation running the project.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": "https://web.archive.org/web/20260804145400/https://www.kashiwanoha-smartcity.com/",
       "archivedAt": "2026-08-04",
       "contentHash": null,
       "status": "archive-linked"
      }
     },
     {
      "id": "src-d24defef73aec538",
      "title": "Hitachi Social Innovation (partner)",
      "url": "https://social-innovation.hitachi/en/article/kashiwanoha-smartcity/",
      "publisher": {
       "name": null,
       "domain": "social-innovation.hitachi",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Page of a partner involved in delivering the project.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 1,
     "claimsMapped": 1,
     "sourcesTotal": 2,
     "sourcesUsedByClaims": 1,
     "sourcesWithPublicationDate": 0,
     "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."
    ]
   }
  },
  {
   "id": "2026-08-27-p1-quality-uplift",
   "createdAt": "2026-08-26T23:41:56Z",
   "effectiveAt": "2026-08-02",
   "changeType": "update",
   "summary": "Full claim mapping over snippet, impact and lesson; sourced impact and lesson added; source dates recorded.",
   "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": "replace",
     "path": "/snapshot/projectFingerprint",
     "summary": "Updated projectFingerprint to the current sourced project record."
    },
    {
     "operation": "replace",
     "path": "/snapshot/projectState",
     "summary": "Updated projectState to the current sourced project record."
    },
    {
     "operation": "replace",
     "path": "/snapshot/claims",
     "summary": "Updated claims to the current sourced project record."
    },
    {
     "operation": "replace",
     "path": "/snapshot/sources",
     "summary": "Updated sources to the current sourced project record."
    }
   ],
   "snapshotHash": "sha256:c045d854d84f22a9a5e337b4004ffaf52f9af6e0c56790bf8d633166cdb42e30",
   "snapshot": {
    "asOf": "2026-08-02",
    "projectFingerprint": "sha256:40f3738cf0434edcf2dbcd27e6ea2a12075090180b008df1bfb1fd7058a79bf3",
    "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": "media",
     "timeline": {
      "started": 2014,
      "ended": null
     }
    },
    "governance": {
     "operator": "Urban Design Center Kashiwa-no-ha (UDCK)",
     "actorTypes": [
      "city-government",
      "research",
      "private"
     ],
     "fundingModel": "mixed",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-e0cb00ba8b04a2ac",
      "field": "snippet",
      "text": "a public, academic and private partnership of the University of Tokyo, Chiba University, Chiba Prefecture, Kashiwa City and developer Mitsui Fudosan",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-1cd6f1ba3239408e",
       "src-a6d686c220fdcfe4"
      ],
      "supportNote": "The Centre for Liveable Cities describes the governance as a public-private-academic partnership of Kashiwa City, Chiba Prefecture, Mitsui Fudosan, the University of Tokyo and Chiba University, coordinated through UDCK; the developer's page describes the same 'partnerships between the public, private and academic' basis.",
      "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-e3be7fc94674bea7",
      "field": "snippet",
      "text": "runs a 273-hectare development around three goals: new industry, health and longevity, and environmental harmony",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-1cd6f1ba3239408e",
       "src-a6d686c220fdcfe4"
      ],
      "supportNote": "The Centre for Liveable Cities: 'the Chiba Prefecture Government initiated this 273ha development at the northern part of Kashiwa City'. The developer's page organises the project under the three headings.",
      "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-9b0682a73c015332",
      "field": "snippet",
      "text": "An area energy management system visualises and redistributes power across the district's buildings",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-1cd6f1ba3239408e",
       "src-a6d686c220fdcfe4"
      ],
      "supportNote": "The Centre for Liveable Cities: 'The Area Energy Management System (AEMS) contains a system of independently-operated smart power grids that can visualise energy consumption. It can also efficiently optimise the distribution of energy from various sources of localised renewable energy producers.'",
      "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-cd4ba8b5adb6335a",
      "field": "snippet",
      "text": "a town health station and a community-run health lab sit above the shopping mall at its gate",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-1cd6f1ba3239408e"
      ],
      "supportNote": "The Centre for Liveable Cities: 'Located on the third floor of the LaLaport Kashiwanoha is the Town Health Station, a one-stop healthcare support hub' and 'The Community Health Lab ASHITA is a community-run health information centre'.",
      "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-caefeb79be782dc1",
      "field": "impact",
      "text": "the area energy management system cutting the district's peak electricity consumption by 26%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-1cd6f1ba3239408e"
      ],
      "supportNote": "The Centre for Liveable Cities: 'This system has successfully reduced the district's peak consumption by 26%.'",
      "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-0ffaf0439aaf34a3",
      "field": "impact",
      "text": "car ownership falling 10% over the development's first decade",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-1cd6f1ba3239408e"
      ],
      "supportNote": "The Centre for Liveable Cities: 'Over the past decade, Kashiwa-no-ha has seen a 10% reduction in automobile ownership, which in turn reduces carbon emissions and promotes a healthier lifestyle.'",
      "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-6f19a46985ef3217",
      "field": "impact",
      "text": "neither has been independently evaluated",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-1cd6f1ba3239408e",
       "src-a6d686c220fdcfe4",
       "src-e6a139c42db923f0"
      ],
      "supportNote": "Neither the developer, the operator's site nor the Centre for Liveable Cities cites an evaluation by a party outside the partnership; the CLC article is a descriptive case study, not an assessment.",
      "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-a0cd156ef9b2f126",
      "field": "impact",
      "text": "Mitsui Fudosan says Kashiwa-no-ha received the top LEED-ND Platinum rating in November 2016, the first development in Japan to do so",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-a6d686c220fdcfe4"
      ],
      "supportNote": "Mitsui Fudosan: 'in November 2016 Kashiwa-no-ha Smart City received a Platinum rating, the highest granted, from the LEED-ND (neighborhood development) rating system, an international environmental certification, becoming the first development in Japan to receive the top rating.'",
      "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-f5c0dc08a7257559",
      "field": "lesson",
      "text": "credential rates the neighbourhood's design against a checklist",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-a6d686c220fdcfe4"
      ],
      "supportNote": "The developer describes the award as recognition 'for progressive urban development through public-private-academia partnership and setting environmental performance standards at a certain level for new construction' — a rating of the development plan, not a measurement 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-cd228938fa992732",
      "field": "lesson",
      "text": "come from the partnership that built it, relayed by a visiting institution",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-1cd6f1ba3239408e"
      ],
      "supportNote": "Both figures appear in the Centre for Liveable Cities' descriptive case study, which names no measurement of its own and no source outside the partnership.",
      "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-e6a139c42db923f0",
      "title": "Kashiwa-no-ha Smart City (operator)",
      "url": "https://www.kashiwanoha-smartcity.com/",
      "publisher": {
       "name": null,
       "domain": "kashiwanoha-smartcity.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-6f19a46985ef3217"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-27",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Official site of the organisation running the project.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": "https://web.archive.org/web/20260804145400/https://www.kashiwanoha-smartcity.com/",
       "archivedAt": "2026-08-04",
       "contentHash": null,
       "status": "archive-linked"
      }
     },
     {
      "id": "src-d24defef73aec538",
      "title": "Hitachi Social Innovation (partner)",
      "url": "https://social-innovation.hitachi/en/article/kashiwanoha-smartcity/",
      "publisher": {
       "name": null,
       "domain": "social-innovation.hitachi",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-27",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Page of a partner involved in delivering the project.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-a6d686c220fdcfe4",
      "title": "Mitsui Fudosan — Kashiwa-no-ha Smart City (developer)",
      "url": "https://www.mitsuifudosan.co.jp/english/business/development/kashiwanoha/",
      "publisher": {
       "name": null,
       "domain": "mitsuifudosan.co.jp",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-e0cb00ba8b04a2ac",
       "clm-e3be7fc94674bea7",
       "clm-9b0682a73c015332",
       "clm-6f19a46985ef3217",
       "clm-a0cd156ef9b2f126",
       "clm-f5c0dc08a7257559"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-27",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Developer's own project page: the three categories (new industry, health and longevity, environmental harmony), the AEMS area energy management system, and the November 2016 LEED-ND Platinum rating. No publication date shown.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-1cd6f1ba3239408e",
      "title": "Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha",
      "url": "https://knowledgehub.clc.gov.sg/publications-library/more-than-a-smart-city-kashiwa-no-ha-is-healthy-efficient-and-innovative/",
      "publisher": {
       "name": null,
       "domain": "knowledgehub.clc.gov.sg",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-e0cb00ba8b04a2ac",
       "clm-e3be7fc94674bea7",
       "clm-9b0682a73c015332",
       "clm-cd4ba8b5adb6335a",
       "clm-caefeb79be782dc1",
       "clm-0ffaf0439aaf34a3",
       "clm-6f19a46985ef3217",
       "clm-cd228938fa992732"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": "2025-03-01",
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-27",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Singapore public-sector knowledge hub summarising the district: a 273ha development initiated by the Chiba Prefecture Government, the AEMS cutting peak consumption by 26%, the Town Health Station and Community Health Lab ASHITA, and a 10% fall in car ownership over the past decade. Shown as last updated 1 March 2025, with no original publication date.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 10,
     "claimsMapped": 10,
     "sourcesTotal": 4,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 0,
     "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."
    ]
   }
  }
 ]
}
