{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08212_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Canton, South-Dakota | 1904 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"13"},{"label":"placed","value":"8"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 5, georef-snap 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"4 sheet(s) cut into 12 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 43.30019,-96.59281 +/-721m); p1__2 (tier 4, 43.30019,-96.59281 +/-721m); p1__6 (tier 1, 43.29700,-96.58956 +/-100m); p3__2 (tier 1, 43.29638,-96.59812 +/-100m); p5__2 (tier 2, 43.30008,-96.59012 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Canton, South-Dakota | 1904 | sanborn08212_005 p1 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"3518.0"},{"label":"split_canvas_w","value":"4409.2"},{"label":"split_canvas_h","value":"4190.0"}],"created":"2026-10-19T07:15:46Z","modified":"2026-10-19T07:15:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"75.0,1154.4 76.8,1639.5 152.9,1640.0 153.0,1637.5 458.9,1638.3 459.3,1641.8 464.1,1641.8 464.1,1682.4 492.9,1923.2 1051.0,1924.7 1049.0,1903.9 1070.7,1598.3 1022.3,1494.0 1065.6,903.6 148.0,908.1 145.1,879.5 72.8,879.5 75.0,1154.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1050.3,1154.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.5876686,43.3035947]}},{"type":"Feature","properties":{"resourceCoords":[75.0,1154.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.5902691,43.3035897]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Canton, South-Dakota | 1904 | sanborn08212_005 p1 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4399.6"},{"label":"split_canvas_y","value":"3518.0"},{"label":"split_canvas_w","value":"2112.4"},{"label":"split_canvas_h","value":"1402.0"}],"created":"2026-10-19T07:15:46Z","modified":"2026-10-19T07:15:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1569.0,1223.3 1560.3,922.2 1133.1,903.6 1134.8,1218.8 1569.0,1223.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1148.8,1158.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.59519051013307,43.293654113630254]}},{"type":"Feature","properties":{"resourceCoords":[1590.1,1158.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.59402271385109,43.29364932505198]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Canton, South-Dakota | 1904 | sanborn08212_005 p1 [5]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.31"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4382.0"},{"label":"split_canvas_y","value":"4920.0"},{"label":"split_canvas_w","value":"2130.0"},{"label":"split_canvas_h","value":"2788.0"}],"created":"2026-10-19T07:15:46Z","modified":"2026-10-19T07:15:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1586.8,1293.8 1586.7,1230.0 1571.2,1248.4 1121.5,1296.8 1124.8,1864.7 1170.7,1903.6 1601.1,1894.5 1584.5,1294.0 1586.8,1293.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0001__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1140.5,1854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.5952403,43.2972374]}},{"type":"Feature","properties":{"resourceCoords":[1588.0,1854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.5939683,43.2972319]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Canton, South-Dakota | 1904 | sanborn08212_005 p2","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:15:46Z","modified":"2026-10-19T07:15:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"346.3,81.3 585.0,78.0 585.0,136.8 1065.8,193.6 1065.4,91.4 1554.9,93.3 1552.3,577.3 1556.1,768.5 1549.8,1656.0 1551.4,1881.3 1523.5,1883.3 1147.6,1789.9 109.7,1885.2 110.5,1534.3 111.7,802.8 108.5,567.2 108.9,310.6 102.7,79.2 346.3,81.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[585.0,568.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.5927381,43.300847]}},{"type":"Feature","properties":{"resourceCoords":[585.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.5927362,43.3017617]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Canton, South-Dakota | 1904 | sanborn08212_005 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"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":"2026-10-19T07:15:46Z","modified":"2026-10-19T07:15:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1476.7,1.0 444.2,1.0 444.2,65.4 378.6,123.6 369.0,246.1 369.0,310.0 364.0,310.0 363.8,312.9 225.4,312.8 79.7,400.0 77.9,1871.1 1563.5,1872.9 1563.5,1926.0 1571.2,1926.0 1581.6,1926.0 1582.0,1839.5 1585.2,1102.3 1582.7,864.9 1583.8,606.3 1578.2,373.0 1498.9,372.7 1476.7,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[508.0,855.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.59669568157783,43.30086570681239]}},{"type":"Feature","properties":{"resourceCoords":[122.0,361.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.59767964178998,43.30177989949045]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Canton, South-Dakota | 1904 | sanborn08212_005 p4 [1]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.97"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1206.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"6502.0"}],"created":"2026-10-19T07:15:46Z","modified":"2026-10-19T07:15:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1627.0,1339.0 1554.6,1338.6 1552.4,836.1 1549.9,551.3 1624.8,551.3 1599.6,307.4 1.6,304.1 1.0,361.2 1.0,1072.0 58.8,1072.7 1.9,1328.4 5.4,1328.4 33.6,1808.3 112.0,1808.6 354.6,1811.7 592.4,1809.2 592.1,1867.8 1070.8,1926.0 1070.8,1824.3 1558.4,1828.0 1627.0,1826.5 1627.0,1339.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1069.0,836.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.591514,43.3035873]}},{"type":"Feature","properties":{"resourceCoords":[117.0,1330.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.5939629,43.3026578]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Canton, South-Dakota | 1904 | sanborn08212_005 p4 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.91"},{"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":"1206.0"}],"created":"2026-10-19T07:15:46Z","modified":"2026-10-19T07:15:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1360.5,300.5 1357.2,254.1 1353.8,254.1 1407.0,1.0 1341.9,1.0 1341.9,16.4 177.5,63.2 71.0,142.7 92.6,258.5 142.7,257.9 350.6,232.8 351.3,300.5 1360.5,300.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[405.0,254.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.59672,43.3026771]}},{"type":"Feature","properties":{"resourceCoords":[1468.0,254.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.5939629,43.3026578]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Canton, South-Dakota | 1904 | sanborn08212_005 p5 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"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":"2026-10-19T07:15:46Z","modified":"2026-10-19T07:15:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.1,65.3 57.1,550.0 62.6,741.3 64.5,1629.9 68.2,1855.6 759.2,1801.6 792.5,1797.1 812.5,1668.6 976.0,1638.1 976.0,1633.8 975.9,1628.1 1041.1,1618.0 1301.8,1577.4 1513.1,1538.0 1585.1,1508.3 1605.8,1414.0 1607.4,212.8 1548.3,104.9 1229.1,28.8 123.7,26.2 124.1,63.0 55.1,65.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082121904:08212_1904-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[85.0,1028.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.59019848072778,43.299935088096454]}},{"type":"Feature","properties":{"resourceCoords":[85.0,1520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.59021201761111,43.29901789266067]}}]}}]}