{"schemaVersion":"1.0.0","releaseDate":"2026-08-26","title":"Sankaku Daruma 3D evidence manifest","purpose":"Machine-readable verification and bounded reuse context for one Daruma Atlas 3D study.","record":{"id":"sankaku","file":"010","name":"Sankaku Daruma","japaneseName":"三角だるま","region":"Agano","prefecture":"Niigata","pageUrl":"https://darumaatlas.com/types/sankaku","evidenceManifestUrl":"https://darumaatlas.com/data/3d-evidence.json?model=sankaku","posterUrl":"https://darumaatlas.com/images/models/sankaku.png","viewerUrl":"https://darumaatlas.com/prototype/regional-daruma-viewer.html?model=sankaku","modelUrl":"https://darumaatlas.com/models/sankaku-daruma-web-final.glb"},"schemaOrg3DModel":{"@context":"https://schema.org","@type":"3DModel","@id":"https://darumaatlas.com/types/sankaku#interpretive-3d-model","name":"Sankaku Daruma — Daruma Atlas interpretive 3D study","description":"A pointed Echigo daruma whose triangular body and humorous expression break the familiar round silhouette. AI-assisted interpretive Web model; not a scan, authenticated object, licensed replica or physical measurement.","inLanguage":"en","encodingFormat":"model/gltf-binary","contentUrl":"https://darumaatlas.com/models/sankaku-daruma-web-final.glb","contentSize":"1222644 bytes","sha256":"962501536e095da71f0a0890f7465ee98f7e088bdd4fa6b5c2a2a236730ad763","thumbnailUrl":"https://darumaatlas.com/images/models/sankaku.png","mainEntityOfPage":"https://darumaatlas.com/types/sankaku","isPartOf":"https://darumaatlas.com/types","isBasedOn":["https://darumaatlas.com/types/sankaku#claim-sankaku-form","https://darumaatlas.com/types/sankaku#claim-sankaku-expression","https://darumaatlas.com/types/sankaku#claim-sankaku-balance"],"citation":["https://www.city.agano.niigata.jp/shisei_machizukuri/koho_kocho/kishakaiken_hodohappyo/2/13/15039.html","https://niigata-kankou.or.jp/blog/1413","https://www.niigata-minato.com/syouhinannai/daruma/sankakudaruma-setumei.html"],"dateModified":"2026-08-27","creativeWorkStatus":"Interpretive Web study — source anchored, external review pending","creator":{"@type":"Organization","name":"Daruma Atlas","url":"https://darumaatlas.com/"},"about":{"@type":"Thing","name":"Sankaku Daruma","alternateName":"三角だるま"},"spatialCoverage":{"@type":"Place","name":"Agano, Niigata, Japan"},"creditText":"Daruma Atlas — AI-assisted interpretive 3D study","accessibilitySummary":"A static image alternative and source-mapped English descriptions are available on the model page."},"technicalAudit":{"schemaVersion":"1.1.0","auditDate":"2026-08-26","auditUrl":"https://darumaatlas.com/data/model-quality.json","scope":"Technical delivery and glTF conformance only; not visual fidelity, provenance, authenticity, craft approval, physical measurement or rights clearance.","slug":"sankaku","filename":"sankaku-daruma-web-final.glb","sha256":"962501536e095da71f0a0890f7465ee98f7e088bdd4fa6b5c2a2a236730ad763","bytes":1222644,"mebibytes":1.17,"triangles":80000,"vertices":64186,"drawCalls":1,"meshes":1,"materials":1,"textures":{"count":3,"maximumEdge":2048,"powerOfTwo":true,"images":[{"width":2048,"height":2048,"mimeType":"image/jpeg","format":"rgb","bits":8},{"width":2048,"height":2048,"mimeType":"image/jpeg","format":"rgb","bits":8},{"width":2048,"height":2048,"mimeType":"image/jpeg","format":"rgb","bits":8}]},"materialMaps":{"baseColor":true,"normal":true,"metallicRoughness":true,"occlusion":false,"emissive":false},"bounds":{"minimum":[-0.577904,0,-0.533453],"maximum":[0.577904,1.901487,0.533453],"width":1.155809,"height":1.901487,"depth":1.066905,"centerX":0,"baseY":0,"centerZ":0},"originCentered":true,"originGrounded":true,"validator":{"errors":0,"warnings":0,"infos":2,"hints":0,"infoCodes":["UNSUPPORTED_EXTENSION","UNUSED_OBJECT"]},"generator":"Khronos glTF Blender I/O v5.1.20","extensionsUsed":["KHR_draco_mesh_compression"],"checks":{"conformance":true,"delivery":true,"geometry":true,"texture":true,"pbrMaps":true,"sceneCost":true,"origin":true},"technicalStatus":"pass"},"evidenceCues":[{"position":1,"id":"claim-sankaku-form","label":"Form","title":"The triangle is the identity","statement":"Agano City names the triangular form and colour as defining features, making the profile visible even before the face is read.","claimUrl":"https://darumaatlas.com/types/sankaku#claim-sankaku-form","suggestedView":{"angle":"oblique","label":"Oblique","reason":"Read silhouette, depth and front treatment in one controlled view.","boundary":"A camera recommendation helps inspect the interpretation; it is not a measurement, authenticity finding or source proof."},"sources":[{"label":"Agano City — Sankaku Daruma project","href":"https://www.city.agano.niigata.jp/shisei_machizukuri/koho_kocho/kishakaiken_hodohappyo/2/13/15039.html","type":"Municipal source"},{"label":"Niigata Official Tourism — Sankaku Daruma feature","href":"https://niigata-kankou.or.jp/blog/1413","type":"Official tourism source"}]},{"position":2,"id":"claim-sankaku-expression","label":"Expression","title":"Warm rather than severe","statement":"The city describes a humorous, approachable expression. This study keeps that mood without copying one surviving maker's face.","claimUrl":"https://darumaatlas.com/types/sankaku#claim-sankaku-expression","suggestedView":{"angle":"front","label":"Front","reason":"Read the face and front decoration together.","boundary":"A camera recommendation helps inspect the interpretation; it is not a measurement, authenticity finding or source proof."},"sources":[{"label":"Agano City — Sankaku Daruma project","href":"https://www.city.agano.niigata.jp/shisei_machizukuri/koho_kocho/kishakaiken_hodohappyo/2/13/15039.html","type":"Municipal source"},{"label":"Niigata Official Tourism — Sankaku Daruma feature","href":"https://niigata-kankou.or.jp/blog/1413","type":"Official tourism source"}]},{"position":3,"id":"claim-sankaku-balance","label":"Balance","title":"Still an okiagari form","statement":"The pointed body belongs to the wider self-righting daruma family, although this lightweight Web object does not claim to reproduce its physical balance.","claimUrl":"https://darumaatlas.com/types/sankaku#claim-sankaku-balance","suggestedView":{"angle":"right","label":"Right side","reason":"Check profile, projection and surface depth from the right.","boundary":"A camera recommendation helps inspect the interpretation; it is not a measurement, authenticity finding or source proof."},"sources":[{"label":"Agano City — Sankaku Daruma project","href":"https://www.city.agano.niigata.jp/shisei_machizukuri/koho_kocho/kishakaiken_hodohappyo/2/13/15039.html","type":"Municipal source"},{"label":"Niigata Minato — Sankaku Daruma history","href":"https://www.niigata-minato.com/syouhinannai/daruma/sankakudaruma-setumei.html","type":"Specialist retail history"}]}],"reconstructionBoundary":{"classification":"AI-assisted interpretive Web 3D study","documented":"Agano association, triangular body, pointed crown and humorous expression.","illustrative":"The exact taper, painted face and shared Web material.","withheld":"A continuing maker's unique face, historical inscriptions and production measurements.","sourceAnchored":true,"institutionReview":"Not yet institution reviewed","makerReview":"Not yet maker reviewed","authenticatedDigitalTwin":false,"rightsStatus":"Interpretive model — not a licensed replica"},"rightsAndReuse":{"modelLicence":"No open model licence granted.","accessNotice":"Page, manifest, poster, viewer and GLB access do not grant reproduction, redistribution, adaptation, merchandise, training-data or commercial-use rights.","thirdPartyNotice":"The cited public sources remain governed by their respective owners and terms.","contactState":"No public rights-clearance or licensing contact route is active in the owner-only release."},"specificationReferences":["https://schema.org/3DModel","https://www.iana.org/assignments/media-types/model/gltf-binary","https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html"],"searchPresentationNotice":"Schema.org 3DModel is used for machine-readable description. It is not listed as a dedicated Google Search rich-result feature, and no ranking or rich-result outcome is claimed."}