{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08236_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Hartford, South-Dakota | 1904 | mapsnap generated fit (2026-10-17)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-17"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"2"},{"label":"placed","value":"1"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 43.62236,-96.94568 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361904:08236_1904-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, South-Dakota | 1904 | sanborn08236_003 p1 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.76"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-17T20:58:51Z","modified":"2026-10-17T20:58:51Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361904:08236_1904-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361904:08236_1904-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"678.4,1879.3 673.0,1809.2 841.0,1806.0 926.5,1738.0 1066.2,1748.1 1286.7,1900.0 1602.1,1879.2 1565.4,93.9 1385.0,26.8 75.8,53.3 94.6,459.6 48.9,626.5 104.7,942.6 47.2,1011.3 83.5,1264.1 25.3,1360.7 33.3,1626.8 480.9,1636.9 481.4,1640.4 482.5,1640.4 482.5,1648.8 510.9,1861.5 586.8,1905.2 678.4,1879.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361904:08236_1904-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1385.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.944145,43.6219638]}},{"type":"Feature","properties":{"resourceCoords":[244.0,595.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.9472188,43.6230496]}}]}}]}