{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.k-lgrinda","code":"thing-q5240942","url":"https://ver.cy/models/thing/q5240942/","name":"kūlgrinda","alternateNames":[],"kind":"thing","status":"published","version":"0.2.0-wave.5","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.BLT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A man-made submerged causeway of stones laid across swamps or lakes, just below the water surface so that only people who knew the route could cross; found mainly in Lithuania and neighbouring areas and used for refuge and defence. Submerged routes built of wood are distinguished as medgrindas.","purpose":"Let an agent describe kulgrindas, their construction, history and protected sites, from archaeological and heritage sources.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Built below the water surface to remain hidden.","Known examples include Sietuva kulgrinda in Varniai Regional Park (Lukstas-Parsezeris wetlands).","Dates vary by site: Baltic examples predate the wars with the Teutonic Order, and construction dates differ from medieval documentary mentions."],"structure":{"bundles":[{"id":"site","name":"Site","description":"Which kulgrinda.","layers":[{"id":"location","name":"Location","description":"Site.","findings":[{"id":"site","name":"Site","description":"Name and place.","questions":[{"text":"Which kulgrinda?","kind":"provenance"},{"text":"Where?","kind":"provenance"}]}]},{"id":"status","name":"Status","description":"Protection.","findings":[{"id":"heritage-status","name":"Heritage status","description":"Register code.","questions":[{"text":"Is it registered?","kind":"provenance"},{"text":"Under which code?","kind":"provenance"}]}]}]},{"id":"construction","name":"Construction","description":"Build.","layers":[{"id":"materials","name":"Materials","description":"Stones and logs.","findings":[{"id":"materials","name":"Materials","description":"Surviving construction observed versus reconstruction, condition and water-level context.","questions":[{"text":"Which materials?","kind":"provenance"},{"text":"From which survey?","kind":"provenance"}]}]},{"id":"dimensions","name":"Dimensions","description":"Size.","findings":[{"id":"dimensions","name":"Dimensions","description":"Length and width.","questions":[{"text":"How long and wide?","kind":"measurement"},{"text":"Measured when?","kind":"provenance"}]}]}]},{"id":"history","name":"History","description":"Dating.","layers":[{"id":"dating","name":"Dating","description":"Period.","findings":[{"id":"date","name":"Date","description":"Period and method.","questions":[{"text":"When was it built?","kind":"provenance"},{"text":"By which method?","kind":"provenance"}]}]},{"id":"use","name":"Use","description":"Purpose.","findings":[{"id":"use","name":"Use","description":"Evidence for routes to forts or refuges and any documented ritual use.","questions":[{"text":"What was it used for?","kind":"provenance"},{"text":"According to which source?","kind":"provenance"}]}]}]},{"id":"access","name":"Access","description":"Visiting.","layers":[{"id":"visits","name":"Visits","description":"Routes.","findings":[{"id":"visit","name":"Visit","description":"Conditions.","questions":[{"text":"Can it be visited?","kind":"provenance"},{"text":"Under which conditions?","kind":"provenance"}]}]},{"id":"safety","name":"Safety","description":"Risks.","findings":[{"id":"safety","name":"Safety","description":"Rules.","questions":[{"text":"Which safety rules apply?","kind":"provenance"},{"text":"Set by whom?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["describe sites and history"],"mustNot":["encourage crossing without authorised guidance"],"requiresHuman":[]},"ethics":{"considerations":["heritage protection"],"affectedParties":["local communities"]},"owners":{"steward":"the Lithuanian heritage authorities and park administrations","roles":[],"masterSystems":["Register of Cultural Property (Kulturos vertybiu registras)"]},"relations":[{"target":"Q83620","type":"parent","note":"registry parent class"},{"target":"causeway","type":"related","note":"structure"},{"target":"Lithuania","type":"related","note":"country"},{"target":"ford","type":"related","note":"crossing"},{"target":"cultural heritage site","type":"related","note":"status per site"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.k-lgrinda","Wikidata: Q5240942 (https://www.wikidata.org/wiki/Q5240942)","Lithuanian Register of Cultural Property code: numeric for registered sites"]},"properties":{"applicability":"required","items":["width: site-specific; Sietuva about 3 to 4 m in swamp sections and about 8 m at a stream crossing m"]},"recognition":{"applicability":"required","items":["Often concealed by water or wetland deposits; visibility and signage must be checked for each site","A path of stones and timber beneath shallow water or peat, invisible from the surface."]},"capabilities":{"applicability":"required","items":["describe construction and purpose","list known sites with heritage status","explain dating and archaeology","explain visitor access in general terms"]},"hazards":{"applicability":"required","items":["Drowning risk off the route","Damage to heritage from unauthorised access"]},"interfaces":{"applicability":"required","items":["Lithuanian Law on the Protection of Immovable Cultural Heritage"]},"context":{"applicability":"required","items":["Hidden crossing of wetlands for refuge and defence.","swamp kulgrinda","lake kulgrinda","river or stream crossing","medgrinda (wooden submerged route, related)"]}},"sources":[{"title":"Q5240942","url":"https://www.wikidata.org/wiki/Q5240942","note":"identity of the registry item, labels and sitelinks"},{"title":"Kulgrinda","url":"https://www.vle.lt/straipsnis/kulgrinda/","note":"Definition, stone and timber construction, wetland and river settings, wider dimensions, chronology and uses."},{"title":"Sietuva kulgrinda","url":"https://saugoma.lt/en/objects/objects-sietuva-kulgrinda","note":"Sietuva's location, three surviving stretches, measured dimensions and historical interpretation."},{"title":"Varniai Regional Park Visitor Centre","url":"https://zemaitijosstd.lrv.lt/lt/veiklos-sritys/lankytoju-centrai/varniu-regioninio-parko-lankytoju-centras-ir-gamtos-mokykla/","note":"Sietuva's Varniai context, 14th-century documentary mention and managed visits."},{"title":"Law on the Protection of Immovable Cultural Heritage, No I-733","url":"https://e-seimas.lrs.lt/portal/legalAct/lt/TAD/TAIS.15165/asr","note":"Heritage protection framework and site-specific registration and protection."}],"openQuestions":[],"resources":{"spec":"/models/things/publications/thing-q5240942/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q5240942/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-10-22T11:03:41Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-22T11:48:33+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}