{
 "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": "osaka-umekita-station-doors-gates",
  "title": "Umekita Underground Platforms: Movable Platform Doors and a Face-Recognition Gate Trial",
  "canonicalUrl": "https://1001smartcities.org/projects/osaka-umekita-station-doors-gates/"
 },
 "currentRevisionId": "2026-08-22-evidence-baseline",
 "revisions": [
  {
   "id": "2026-08-22-evidence-baseline",
   "createdAt": "2026-08-22T21:04:00Z",
   "effectiveAt": "2026-07-26",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 14 claims and 7 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": "sha256:1fafa665b9e51492c0f1c05eb259ada01f31e9235c6ae54906062f472335e973",
   "snapshot": {
    "asOf": "2026-07-26",
    "projectFingerprint": "sha256:29e3f8ebee661abc8e794b5c4634584d996122d98970af52264f6d93027ce264",
    "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": 2023,
      "ended": null
     }
    },
    "governance": {
     "operator": "West Japan Railway Company (JR West)",
     "actorTypes": [
      "utility"
     ],
     "fundingModel": null,
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-6f97e6123019bc66",
      "field": "snippet",
      "text": "Osaka Station's underground Umekita platforms opened on 18 March 2023",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-5d7f625274e6e8cc",
       "src-0a2f9bc424954094"
      ],
      "supportNote": "The Impress Watch on-site report, published on the opening day, states that the Umekita area newly opened at Osaka Station with the 18 March timetable revision: \"3月18日のダイヤ改正で大阪駅に「うめきたエリア」が新規開業する\" (\"the Umekita area newly opens at Osaka Station with the 18 March timetable revision\"), and describes the new underground platforms reached from the new Osaka Station west gate. Biometric Update, writing in January 2023, gives the same start date for the station systems: \"The facial recognition gates are scheduled to start operations on March 18.\"",
      "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-6b96b2fdcf94d4f1",
      "field": "snippet",
      "text": "beneath the Grand Green Osaka redevelopment",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-6423672b9d358854",
       "src-5d7f625274e6e8cc"
      ],
      "supportNote": "The Urban Renaissance Agency headline names the development above the station and dates its partial opening: \"うめきた2期区域（グラングリーン大阪）オープン！\" (\"Umekita phase 2 area (Grand Green Osaka) opens!\"), on 6 September 2024 in Kita ward, Osaka. Impress Watch places the new platforms underground on that site: \"「うめきた」と呼ばれる大阪駅北西の新開発ヤードの地下に位置する\" (\"located beneath the newly developed yard north-west of Osaka Station known as Umekita\").",
      "caveat": "The two sources establish the location and the name of the development, but they were written eighteen months apart: the platforms opened in March 2023, while the Grand Green Osaka park above them opened in stages from September 2024.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-bc3160af7cf7b336",
      "field": "snippet",
      "text": "Track 21 got a platform screen door",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-5d7f625274e6e8cc",
       "src-c3fc3ebb8bf4836f"
      ],
      "supportNote": "Impress Watch reports that the underground level has two island platforms serving four tracks numbered 21 to 24 (\"2面4線の島式ホームの構造\", \"21-24番ホーム\") and that only track 21 carries platform doors: \"この番線のみホームドアが設置されており\" (\"only this track has platform doors installed\"), with \"22-24番線についてはホームドアのない構造\" (\"tracks 22 to 24 have no platform doors\"). Travel Watch had reported the same plan ahead of opening: \"新しい駅ではまず、1つの番線に設置される予定になっている\" (\"at the new station it is planned to be installed on one track first\").",
      "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-747f699a53406cc2",
      "field": "snippet",
      "text": "JR West and Nabtesco describe as a world first",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-98ef63b33902c9b3",
       "src-c3fc3ebb8bf4836f"
      ],
      "supportNote": "Nabtesco's own account of the project uses the phrase throughout, including \"the challenge of developing a world-first full-height platform screen door unit\", and names its partners: \"This project was an open innovation initiative with two companies: JR WEST, which aims to create 'a station of the future', and Techsia, which has extensive knowledge of the unique environment of train stations.\" Travel Watch, reporting JR West's press preview, uses the same wording for what JR West showed: \"世界初となるフルスクリーンホームドアを報道陣に初公開した\" (\"unveiled to the press the world's-first full-screen platform door\").",
      "caveat": "The phrase is Nabtesco's own on Nabtesco's own pages, and the trade report attaches it to what JR West presented at its press briefing. Of the three companies named here, JR West Techsia appears only as a named co-developer; no source quotes it using the phrase, and no independent body has tested the claim.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-1870a5bc5d6feaf8",
      "field": "snippet",
      "text": "a floor-to-ceiling glass wall of parent and child doors",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-98ef63b33902c9b3"
      ],
      "supportNote": "Nabtesco describes the unit as \"full-height, all-glass movable doors\" and sets out the door structure: \"(3)Parent door — The door has a 65-inch large space for digital signage\" and \"(4)Child doors — The parent door in the middle and the child doors on both sides operate in an integrated system.\" The doors are hung from a ceiling rail: \"The doors are separately hung from the ceiling rail to distribute the load of the door unit.\" Travel Watch adds that the doors close the platform off from the track completely.",
      "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-c794786cceb50b99",
      "field": "snippet",
      "text": "slides along the platform edge so its openings match whatever train arrives, whatever its door layout",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-98ef63b33902c9b3",
       "src-c3fc3ebb8bf4836f"
      ],
      "supportNote": "Nabtesco states that \"these full-height, all-glass movable doors can adjust to trains with varying door positions\" and that \"[a]s local and express trains have different numbers of doors in different positions, the location of openings needs to be changeable.\" Travel Watch reports the same capability from JR West's briefing: the signage panels themselves move with the train, so everything from two-door to three-door stock is handled — \"あらゆる列車のタイプに対応可能\" (\"can handle every type of train\").",
      "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-48462f0d4e7a7656",
      "field": "snippet",
      "text": "with train information shown on the door panels",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-98ef63b33902c9b3",
       "src-c3fc3ebb8bf4836f"
      ],
      "supportNote": "Nabtesco: \"Embedded in the door body are large digital signages displaying the latest train information\", and the parent door carries \"a 65-inch large space for digital signage to display train information, warnings, advertising, and other information.\" Travel Watch describes the same arrangement of an overhead band display plus displays built into the platform doors carrying train name, time and car numbers.",
      "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-e3f939474f9d936f",
      "field": "snippet",
      "text": "A face-recognition ticket gate opened the same day",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0a2f9bc424954094",
       "src-5d7f625274e6e8cc",
       "src-495cd785944623eb"
      ],
      "supportNote": "Biometric Update, reporting JR West's announcement in January 2023: \"The facial recognition gates are scheduled to start operations on March 18\", at Osaka Station's Umekita Underground Exit and Shin-Osaka Station's East Exit. Impress Watch, on 18 March 2023, describes the gate in service on site using Panasonic face-recognition technology. JR West's own release confirms the start month: trial operation of the face-recognition gates in the Umekita area has run since March 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-5fd4e3d4f3cea832",
      "field": "snippet",
      "text": "but only as a monitor trial for holders of an ICOCA commuter pass covering Osaka–Shin-Osaka",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-5d7f625274e6e8cc",
       "src-495cd785944623eb"
      ],
      "supportNote": "Impress Watch states the single condition for taking part: \"参加する条件は「大阪と新大阪の間の定期を持っていること」のみ\" (\"the only condition for participating is holding a commuter pass between Osaka and Shin-Osaka\"), applied for through JR West's WESTER app by sending a photograph. JR West's release describes the arrangement as a demonstration trial with monitor recruitment and names the same qualifying group, holders of an ICOCA commuter pass covering the Osaka to Shin-Osaka section.",
      "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-8c28175702015cb2",
      "field": "lesson",
      "text": "The world-first door was fitted to one of four platform edges",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-5d7f625274e6e8cc",
       "src-c3fc3ebb8bf4836f"
      ],
      "supportNote": "Impress Watch counts the underground level as two island platforms with four tracks, 21 to 24, and reports that only track 21 has the doors: \"22-24番線についてはホームドアのない構造\" (\"tracks 22 to 24 are built without platform doors\"). Travel Watch's pre-opening report describes the same one-track start.",
      "caveat": "Both sources describe the arrangement as it stood when the platforms opened in March 2023. None of the sources listed here revisits the platform door later, so they cannot show that the count is still one in four today.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-26bc1de43361c45d",
      "field": "lesson",
      "text": "the face-recognition gate is still a trial",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-495cd785944623eb",
       "src-c10f8b0c423da37d"
      ],
      "supportNote": "JR West's release sets out the replacement under the heading \"実証実験及び設置場所等\" (\"demonstration trial and installation locations\"), gives the trial period as running from 2 March 2026 for the time being, and opens monitor registration again from the same date. Travel Watch reports the same: \"引き続き顔認証改札機のモニターを募集する\" (\"monitor recruitment for the face-recognition gates continues\"), for holders of an ICOCA commuter pass covering Osaka to Shin-Osaka.",
      "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-3ecab41b5fec22a8",
      "field": "lesson",
      "text": "the futuristic arch-shaped gate was retired in February 2026",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-c10f8b0c423da37d",
       "src-495cd785944623eb"
      ],
      "supportNote": "Travel Watch's headline states that the arch at the Umekita underground exit ends — \"うめきた地下口のアーチ型は終了\" — and explains that the Osaka Station gate \"各部にディスプレイを取り入れたアーチ型のもの\" (\"an arch shape with displays built into every part\") will be seen for the last time with this replacement. JR West's release says the existing face-recognition gates at the Umekita underground gateline and the Shin-Osaka east gateline will be removed, and that from 2 February to 1 March 2026 face registration and face-recognition use are not possible because of construction and preparation work.",
      "caveat": "The operator names the works window and says the old gates will be removed, but gives no removal date; February follows from the last day the arch could be used, 1 February 2026, and the changeover to the replacement on 2 March 2026.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-1fa7876ec5864fd9",
      "field": "lesson",
      "text": "replaced by ordinary gates with two cameras bolted on",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-495cd785944623eb",
       "src-c10f8b0c423da37d"
      ],
      "supportNote": "JR West states that face-recognition has been added to the standard IC-only ticket gate, that the installation was achieved by converting gates already in use so that a rollout to other stations stays possible, and that two cameras are fitted in line with the direction of travel. Travel Watch says the same in one sentence: \"新しい改札機は既存のIC専用機の改造で、上面にカメラを2台設置して認証精度を向上\" (\"the new gate is a conversion of the existing IC-only unit, with two cameras fitted on the top surface to improve recognition accuracy\"), one lane at each gateline.",
      "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-d932bf2143e6d603",
      "field": "lesson",
      "text": "chosen for accuracy at rush hour rather than for show",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-495cd785944623eb",
       "src-c10f8b0c423da37d"
      ],
      "supportNote": "JR West gives both halves of the contrast in its own words. Of the outgoing gate: the Osaka Station unit emphasised staging a sense of excitement at the gateline with the Expo in view, took an innovative design meant to feel near-future, and dispensed with barriers altogether as a walk-through gate. Of the replacement: placing two cameras in line with the direction of travel is done \"認証精度の向上を図ります\" (\"to improve recognition accuracy\"), and the stated purpose of the trial is to understand how the new standard gate is used, \"特にラッシュ時の動向\" (\"in particular behaviour at rush hour\"). Travel Watch reports the accuracy rationale in the same terms.",
      "caveat": "The operator gives accuracy and the prospect of rolling the gates out to other stations as the reasons for the design, and names rush-hour behaviour as what the trial sets out to observe. It does not say that rush-hour accuracy was itself the reason the ordinary gate was chosen.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-98ef63b33902c9b3",
      "title": "Nabtesco — challenging the development of a world-first platform screen door unit",
      "url": "https://www.nabtesco.com/en/innovation/challenge/case-02/",
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       "domain": "nabtesco.com",
       "classification": "not-classified"
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      "role": "claim-evidence",
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      "locator": {
       "type": "descriptive-source-note",
       "value": "Co-developer with JR West Group and JR West Techsia: full-height all-glass parent and child doors on ceiling-hung hanger rollers that adjust to trains with varying door positions, with embedded digital signage. Source of the world-first wording.",
       "exact": false
      },
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      "title": "Impress Watch — on-site report: Umekita area opens at Osaka Station (Mar 2023)",
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       "publishedAt": "2023-03-18",
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      "locator": {
       "type": "descriptive-source-note",
       "value": "Opening 18 March 2023, tracks 21 to 24; only track 21 has the movable doors; face-recognition gate limited to commuter-pass monitors; variable signage and personal wayfinding markers.",
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      },
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     {
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      "title": "Travel Watch — JR West unveils the Umekita underground station systems (Dec 2022)",
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       "domain": "travel.watch.impress.co.jp",
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      "role": "claim-evidence",
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      "locator": {
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       "value": "JR West press briefing: the world-first full-screen platform door on one track first, plus personalised and general digital variable signs.",
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      },
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     },
     {
      "id": "src-c10f8b0c423da37d",
      "title": "Travel Watch — face-recognition gates switch to a new type in March 2026; the Umekita arch gate ends",
      "url": "https://travel.watch.impress.co.jp/docs/news/2082407.html",
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      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Currency check: from 2 March 2026 standard gates with two top-mounted cameras replace the display-heavy arch gate, one lane each; still a monitor trial.",
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      },
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      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "English trade press: the 18 March 2023 start and pre-registered face matching; notes an earlier Osaka Metro deployment in November 2022, which is why no national first is claimed here.",
       "exact": false
      },
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      }
     },
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       "exact": false
      },
      "preservation": {
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    "coverage": {
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     "claimsMapped": 14,
     "sourcesTotal": 7,
     "sourcesUsedByClaims": 7,
     "sourcesWithPublicationDate": 6,
     "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."
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   }
  }
 ]
}