{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08210_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Britton, South-Dakota | 1914 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"13"},{"label":"placed","value":"9"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 8, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 10 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 45.79305,-97.75169 +/-500m); p6__2 (tier 1, 45.79041,-97.74414 +/-100m); p6__3 (tier 1, 45.78838,-97.75258 +/-100m); p6__5 (tier 1, 45.79023,-97.75566 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Britton, South-Dakota | 1914 | sanborn08210_005 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.36"},{"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":"2826.4"},{"label":"split_canvas_h","value":"3960.8"}],"created":"2026-10-18T17:43:10Z","modified":"2026-10-18T17:43:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"70.0,962.2 627.5,965.3 687.7,965.7 667.8,37.8 105.1,20.2 70.0,38.1 70.0,430.1 70.0,962.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[70.0,962.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7490078,45.7912813]}},{"type":"Feature","properties":{"resourceCoords":[70.0,430.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.747545,45.7912749]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Britton, South-Dakota | 1914 | sanborn08210_005 p1 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.78"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3910.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"3798.0"}],"created":"2026-10-18T17:43:10Z","modified":"2026-10-18T17:43:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"77.9,1863.0 622.5,1863.2 1191.3,1865.2 1190.7,1892.7 1522.0,1915.1 1599.2,1837.4 1574.2,1039.1 343.4,1001.1 120.5,1023.6 85.1,1182.0 80.5,1179.9 77.9,1863.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1193.0,1303.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7475046,45.7954449]}},{"type":"Feature","properties":{"resourceCoords":[80.0,1303.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7504968,45.7954537]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Britton, South-Dakota | 1914 | sanborn08210_005 p2 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.96"},{"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":"2026-10-18T17:43:10Z","modified":"2026-10-18T17:43:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1383.9,1877.5 1383.9,1841.0 1590.8,1840.9 1590.8,1276.6 1590.7,144.9 895.6,143.7 840.0,263.7 829.4,907.8 824.0,914.7 551.1,917.1 287.9,925.9 250.5,1027.6 250.5,1038.0 246.7,1038.0 244.8,1043.2 83.7,1044.2 47.5,1103.0 58.9,1754.3 139.9,1841.6 235.1,1843.0 994.8,1841.4 1201.0,1805.7 1383.9,1877.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[462.0,1842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7549765,45.796504]}},{"type":"Feature","properties":{"resourceCoords":[462.0,143.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7504851,45.7964844]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Britton, South-Dakota | 1914 | sanborn08210_005 p2 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"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":"3296.0"},{"label":"split_canvas_h","value":"4152.0"}],"created":"2026-10-18T17:43:10Z","modified":"2026-10-18T17:43:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"250.5,926.7 250.5,919.8 254.4,919.8 808.5,904.7 771.4,45.1 34.5,40.8 21.1,977.9 201.8,1013.8 250.5,926.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[272.0,582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7564258286913,45.796479876534455]}},{"type":"Feature","properties":{"resourceCoords":[272.0,52.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.75500632631883,45.796478722963656]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Britton, South-Dakota | 1914 | sanborn08210_005 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:43:10Z","modified":"2026-10-18T17:43:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1121.8,1894.8 1236.1,1890.7 1522.5,1891.0 1518.4,1333.1 1521.1,1333.1 1528.2,778.8 1538.8,778.8 1490.9,206.6 1238.0,206.0 1238.3,1.0 1201.5,1.0 1187.3,37.0 101.8,70.5 51.3,187.3 83.2,879.3 27.7,1557.2 72.6,1848.4 152.9,1891.8 1120.8,1894.8 1121.8,1894.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1238.0,1336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7550043,45.7923314]}},{"type":"Feature","properties":{"resourceCoords":[1238.0,206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7549922,45.7944235]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Britton, South-Dakota | 1914 | sanborn08210_005 p4","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:43:10Z","modified":"2026-10-18T17:43:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"128.9,1798.6 125.5,1237.0 128.2,1237.0 135.9,679.0 146.7,679.0 99.1,103.0 410.0,104.0 1544.2,107.7 1541.3,682.8 1534.0,1237.2 1535.7,1802.0 405.1,1799.3 128.9,1798.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[970.0,1240.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.752032,45.7923247]}},{"type":"Feature","properties":{"resourceCoords":[410.0,104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7535006,45.794417]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Britton, South-Dakota | 1914 | sanborn08210_005 p5","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:43:10Z","modified":"2026-10-18T17:43:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"88.0,1222.0 89.8,667.5 87.0,92.5 642.0,88.0 1221.8,85.0 1221.4,113.0 1559.2,133.0 1543.0,149.7 1592.1,545.1 1577.0,1653.0 1627.0,1750.0 1627.0,1774.0 1627.0,1776.8 1232.2,1779.4 677.7,1783.0 670.0,1855.3 536.6,1882.5 536.1,1784.0 95.3,1786.8 88.0,1222.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[88.0,1222.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7505442,45.7923269]}},{"type":"Feature","properties":{"resourceCoords":[642.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7490447,45.7943993]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Britton, South-Dakota | 1914 | sanborn08210_005 p6 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.88"},{"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":"2026-10-18T17:43:10Z","modified":"2026-10-18T17:43:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.8,1926.0 111.5,1859.4 436.1,1856.2 460.9,1376.3 468.5,1363.0 1066.0,1363.0 1140.0,1343.7 1140.0,1330.5 1140.0,1306.0 1284.9,1306.0 1566.3,1232.7 1505.7,1070.9 1216.3,876.1 1130.8,819.4 913.8,675.2 913.8,675.2 912.5,669.7 1042.5,492.6 1532.4,782.9 1597.8,679.0 1542.6,317.9 1423.8,293.5 1407.5,257.1 1423.8,245.3 1246.8,254.4 1163.8,70.8 670.5,32.8 670.6,104.0 99.2,105.0 104.3,1242.4 106.9,1810.2 107.4,1926.0 110.4,1926.0 111.8,1926.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[684.0,1240.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.753535,45.7902392]}},{"type":"Feature","properties":{"resourceCoords":[684.0,104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7505564,45.7902188]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0006__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Britton, South-Dakota | 1914 | sanborn08210_005 p6 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.82"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4560.0"},{"label":"split_canvas_y","value":"5224.0"},{"label":"split_canvas_w","value":"1952.0"},{"label":"split_canvas_h","value":"2484.0"}],"created":"2026-10-18T17:43:10Z","modified":"2026-10-18T17:43:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0006__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1552.7,1886.7 1506.7,1617.0 1607.8,1462.9 1627.0,1459.1 1627.0,1396.0 1627.0,1360.8 1189.0,1361.7 1188.9,1926.0 1259.5,1926.0 1260.7,1911.0 1552.7,1886.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082101914:08210_1914-0006__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1140.0,1306.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.75067261566001,45.79139127084548]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1306.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.74938004552119,45.7913840875159]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.74939314913283,45.79023664099237]}},{"type":"Feature","properties":{"resourceCoords":[1140.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.75068571927164,45.79024382432195]}},{"type":"Feature","properties":{"resourceCoords":[1189.0,1362.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.750544,45.791288]}}]}}]}