{
 "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": "tokyo-virtual-shibuya",
  "title": "Virtual Shibuya",
  "canonicalUrl": "https://1001smartcities.org/projects/tokyo-virtual-shibuya/"
 },
 "currentRevisionId": "2026-08-22-evidence-baseline",
 "revisions": [
  {
   "id": "2026-08-22-evidence-baseline",
   "createdAt": "2026-08-22T21:13:00Z",
   "effectiveAt": "2026-07-25",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 8 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": "sha256:641384bd5c022c8fb13d1844013a5b03b68175f034d0dad798006b3dbdf60c67",
   "snapshot": {
    "asOf": "2026-07-25",
    "projectFingerprint": "sha256:4a02adf66d57eef19b7908c54c47fabc97042a3d5065651fc2773e1bcf1bafaa",
    "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": "official",
     "timeline": {
      "started": 2020,
      "ended": null
     }
    },
    "governance": {
     "operator": "Shibuya Ward, KDDI and Future Design Shibuya",
     "actorTypes": [
      "city-government",
      "private",
      "civil-society"
     ],
     "fundingModel": "mixed",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-5100c134eb860a38",
      "field": "snippet",
      "text": "recreates the ward's streetscape as a browser- and VR-accessible metaverse",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-6297a7f79a1795df",
       "src-b321f3fab3e1345f"
      ],
      "supportNote": "The May 2020 launch press release describes Virtual Shibuya as \"a virtual event venue and a digital twin (mirror world) that expresses the same content in cooperation with the real city of Shibuya.\" The programme's own overview page provides access via a public URL (https://vcity.au5g.jp/shibuya) and refers to it as a \"virtual reality (VR) space,\" i.e. both web-based and VR access.",
      "caveat": "The sources describe an \"urban-linked metaverse\" or \"digital twin (mirror world)\" rather than literally using the word \"streetscape,\" and neither page uses the word \"browser\" — web access is inferred from the public URL rather than stated outright.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-a617cf285be0ebc3",
      "field": "snippet",
      "text": "attend concerts",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-6297a7f79a1795df"
      ],
      "supportNote": "The overview page states the programme \"held a variety of entertainment-focused events, including music and talk shows,\" and that \"a total of more than 100 artists, VTubers, anime characters, and more have appeared so far.\"",
      "caveat": "The source describes \"music and talk shows,\" not literally \"concerts.\"",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-64c0d3a4751dbb06",
      "field": "snippet",
      "text": "an annual Halloween festival",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-6297a7f79a1795df",
       "src-896ce7891ca3cb71"
      ],
      "supportNote": "Future Design Shibuya's overview page states the Halloween event has been \"held every year around Halloween since 2020.\" Independent coverage by Tokyo Weekender of the October 24–November 30, 2024 edition notes \"this event has been taking place for five years,\" consistent with an unbroken annual run from 2020 through 2024.",
      "caveat": "The event's branding has varied by year and platform (\"au 5G Halloween Festival\" per Future Design Shibuya, \"Virtual Halloween\" in the 2024 Tokyo Weekender coverage, \"FIND THE HALLOWEEN SHIBUYA\" for the 2025 Roblox edition) even though it is consistently described as the same recurring annual programme.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-b7bba9ff1814bbca",
      "field": "snippet",
      "text": "Backed by Shibuya Ward, KDDI and nonprofit Future Design Shibuya since May 2020",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-6297a7f79a1795df",
       "src-b321f3fab3e1345f"
      ],
      "supportNote": "Future Design Shibuya's current overview page states \"Lead organizer: Future Design Shibuya /KDDI. Officially recognized: Shibuya Ward.\" The May 15, 2020 founding press release separately confirms that Shibuya Ward \"officially approved [the] distribution platform\" as co-sponsor of the launch event, and that the (nonprofit) \"General Incorporated Association Future Design Shibuya\" organized and directed the project.",
      "caveat": "The founding May 15, 2020 press release lists Cluster Co., Ltd. and Psychic VR Lab Co., Ltd. — not KDDI — as the two technical partners alongside Shibuya Ward and Future Design Shibuya; KDDI's brand (\"au 5G\") appears in the platform's original event name, and KDDI is confirmed as co-lead organiser only on Future Design Shibuya's later, undated overview page. This entry's operator list omits Cluster Co. and Psychic VR Lab, the two technical partners the founding press release actually names.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-381a4df1467b48af",
      "field": "snippet",
      "text": "it has drawn 3M+ cumulative event visits",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-6297a7f79a1795df"
      ],
      "supportNote": "Future Design Shibuya's own overview page states \"Virtual Shibuya Event participants: Total 3 million people (as of 2023).\"",
      "caveat": "The source counts cumulative \"participants,\" not literally \"visits,\" and the figure is explicitly dated \"as of 2023\" — it is not necessarily current as of this entry's July 2026 verification date. As the impact field itself notes, it is a self-reported operator figure.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-2c214d1c41475197",
      "field": "snippet",
      "text": "expanded onto Roblox in 2025",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-c6717db1eec8cbf4"
      ],
      "supportNote": "transcosmos' October 17, 2025 announcement confirms the launch of \"FIND THE HALLOWEEN SHIBUYA, a Halloween-themed game experience on Roblox,\" developed together with the \"Future Design Shibuya General Incorporated Association,\" with Shibuya Ward mayor Ken Hasebe providing a supporting comment.",
      "caveat": "The Roblox product is released under its own title (\"FIND THE HALLOWEEN SHIBUYA\") rather than the \"Virtual Shibuya\" name itself, though it is organised by the same nonprofit, Future Design Shibuya, as part of the same annual Halloween programming.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-2f622e9f4ff6c23c",
      "field": "impact",
      "text": "Cumulative event participation topped 3 million across Virtual Shibuya programming as of 2023, per organiser Future Design Shibuya",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-6297a7f79a1795df"
      ],
      "supportNote": "Matches the operator's own reporting on its overview page: \"Virtual Shibuya Event participants: Total 3 million people (as of 2023).\"",
      "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-27a3f177f0413c6b",
      "field": "impact",
      "text": "a self-reported operator figure, not independently audited",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-6297a7f79a1795df",
       "src-896ce7891ca3cb71",
       "src-c6717db1eec8cbf4"
      ],
      "supportNote": "The 3 million figure appears only on Future Design Shibuya's own official pages, i.e. the organiser reporting on itself. Neither of the entry's other listed sources — Tokyo Weekender's October 2024 Halloween coverage or transcosmos' October 2025 Roblox announcement — reports or independently corroborates any participation count, so the characterization as self-reported and unaudited holds against this entry's full source set.",
      "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-6297a7f79a1795df",
      "title": "Future Design Shibuya (official)",
      "url": "https://fds.or.jp/en/ouraction/shibuya5g/",
      "publisher": {
       "name": null,
       "domain": "fds.or.jp",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-5100c134eb860a38",
       "clm-a617cf285be0ebc3",
       "clm-64c0d3a4751dbb06",
       "clm-b7bba9ff1814bbca",
       "clm-381a4df1467b48af",
       "clm-2f622e9f4ff6c23c",
       "clm-27a3f177f0413c6b"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-25",
       "dossierCreatedAt": "2026-08-22",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Official project overview: stakeholders, platform, cumulative 3M+ participant figure as of 2023.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-b321f3fab3e1345f",
      "title": "Future Design Shibuya — launch press release (official)",
      "url": "https://fds.or.jp/en/pressrelease/143/",
      "publisher": {
       "name": null,
       "domain": "fds.or.jp",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-5100c134eb860a38",
       "clm-b7bba9ff1814bbca"
      ],
      "temporal": {
       "publishedAt": "2020-05-15",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-25",
       "dossierCreatedAt": "2026-08-22",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "May 15, 2020 press release naming Shibuya Ward, Cluster Co. and Psychic VR Lab as founding partners.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-896ce7891ca3cb71",
      "title": "Tokyo Weekender (press)",
      "url": "https://www.tokyoweekender.com/japan-life/news-and-opinion/virtual-shibuya-halloween-event/",
      "publisher": {
       "name": null,
       "domain": "tokyoweekender.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-64c0d3a4751dbb06",
       "clm-27a3f177f0413c6b"
      ],
      "temporal": {
       "publishedAt": "2024-10-25",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-25",
       "dossierCreatedAt": "2026-08-22",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Independent coverage of the Oct 24-Nov 30, 2024 Virtual Halloween event run across five platforms.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-c6717db1eec8cbf4",
      "title": "transcosmos (press)",
      "url": "https://www.trans-cosmos.co.jp/english/company/news/251017.html",
      "publisher": {
       "name": null,
       "domain": "trans-cosmos.co.jp",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-2c214d1c41475197",
       "clm-27a3f177f0413c6b"
      ],
      "temporal": {
       "publishedAt": "2025-10-17",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-25",
       "dossierCreatedAt": "2026-08-22",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Oct 17, 2025 announcement of a Roblox-based Shibuya Halloween game, confirming the initiative is still active in 2025.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 8,
     "claimsMapped": 8,
     "sourcesTotal": 4,
     "sourcesUsedByClaims": 4,
     "sourcesWithPublicationDate": 3,
     "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."
    ]
   }
  }
 ]
}