{
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 "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.",
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  "id": "vienna-kultur-token",
  "title": "Kultur-Token",
  "canonicalUrl": "https://1001smartcities.org/projects/vienna-kultur-token/"
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 "currentRevisionId": "2026-08-27-source-dating",
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     }
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      "text": "every 20 kg of CO2 saved earned a Kultur-Token as a QR code, redeemable as an entry ticket at the Gartenbaukino, Volkstheater, Kunsthalle or Konzerthaus",
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      "text": "The City of Vienna ran it as a time-limited pilot and research project, with AIT and WU Vienna as partners",
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      "text": "what makes people fold climate-friendly behaviour into everyday life: a playful app, a strong community, or culture as the reward",
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      "field": "lesson",
      "text": "how long the test ran, how the app told walking from driving, and how much electricity the blockchain used",
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      "id": "clm-62cdad2e61c0ab33",
      "field": "lesson",
      "text": "Five years and three phases produced a closed group of two thousand and one publicly listed working paper",
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       "added": false,
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       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
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      "id": "src-663cbb3873c5324a",
      "title": "Digitales Wien (authority)",
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      "id": "src-04501aee09eada00",
      "title": "Stadt Wien Presse-Service (official)",
      "url": "https://presse.wien.gv.at/presse/2023/11/13/premiere-in-wien-mit-weltweit-erstem-kultur-token",
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     "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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   "summary": "Every source on this entry now carries a date key: a publication date where the publisher states one, otherwise an explicit null with the reason on the record.",
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      "text": "every 20 kg of CO2 saved earned a Kultur-Token as a QR code, redeemable as an entry ticket at the Gartenbaukino, Volkstheater, Kunsthalle or Konzerthaus",
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}