{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08247_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Madison, South-Dakota | 1908 | 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":"17"},{"label":"placed","value":"8"},{"label":"unplaced","value":"9"},{"label":"fit sources","value":"georef 6, georef-snap 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"1 sheet(s) cut into 10 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 44.01691,-97.11005 +/-209m); p1__3 (tier 1, 44.01712,-97.11003 +/-100m); p6__2 (tier 1, 44.00759,-97.12099 +/-148m); p6__4 (tier 1, 44.00659,-97.11962 +/-120m); p6__5 (tier 1, 44.01371,-97.11306 +/-100m); p6__6 (tier 1, 44.01284,-97.11413 +/-100m); p6__7 (tier 1, 44.00900,-97.10947 +/-100m); p6__8 (tier 1, 44.01412,-97.11364 +/-100m); p6__9 (tier 1, 44.00382,-97.11186 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, South-Dakota | 1908 | sanborn08247_004 p1 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.33"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3273.2"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"4434.8"}],"created":"2026-10-18T17:19:01Z","modified":"2026-10-18T17:19:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"30.7,1726.4 88.5,1725.1 88.5,1849.9 411.4,1926.0 564.0,1926.0 564.0,1921.7 1572.0,1919.9 1610.0,1198.5 1556.7,891.9 1453.7,911.8 1418.9,1013.7 1213.2,1012.7 911.6,990.7 891.4,922.5 692.6,914.7 651.7,866.9 425.4,865.7 389.4,1192.3 375.7,1212.5 375.7,1212.6 130.6,1214.3 87.6,1218.0 77.0,1250.1 53.1,1251.9 44.0,1714.8 30.7,1726.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,818.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.11415027583718,44.01671589062752]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,818.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.10969705353988,44.016732225361544]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.10968168866246,44.01453531855871]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.11413491095976,44.014518983824686]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, South-Dakota | 1908 | sanborn08247_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:19:01Z","modified":"2026-10-18T17:19:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1605.0,53.4 1613.6,87.5 1601.0,1855.1 1539.5,1894.5 61.5,1887.7 60.2,1771.8 82.2,1083.0 58.8,1023.1 66.9,16.7 1605.0,53.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1128.0,1080.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.11107623807906,44.00717749161169]}},{"type":"Feature","properties":{"resourceCoords":[612.0,62.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.11256211815122,44.00919337148927]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, South-Dakota | 1908 | sanborn08247_004 p3","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:19:01Z","modified":"2026-10-18T17:19:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.0,1338.0 100.3,185.9 139.9,185.8 140.2,208.5 140.5,220.0 645.8,93.7 645.3,51.0 1432.1,19.8 1584.8,78.4 1617.5,1887.0 1608.3,1853.7 98.0,1855.8 100.0,1338.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1117.0,1338.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.111184,44.010304]}},{"type":"Feature","properties":{"resourceCoords":[100.0,1338.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.1140635,44.0103182]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, South-Dakota | 1908 | sanborn08247_004 p4","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:19:01Z","modified":"2026-10-18T17:19:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"42.5,71.0 134.2,31.1 1434.7,42.8 1498.5,70.2 1500.4,211.3 1499.1,1353.9 1496.7,1867.3 1437.8,1858.2 1269.6,1860.8 45.6,1862.4 42.5,71.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[536.0,1352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.1168133,44.010334]}},{"type":"Feature","properties":{"resourceCoords":[55.0,214.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.118167,44.0126767]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, South-Dakota | 1908 | sanborn08247_004 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:19:01Z","modified":"2026-10-18T17:19:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1331.2,26.0 1509.6,24.8 1572.0,35.0 1580.3,1074.2 1605.5,1135.6 1594.3,1847.2 1592.7,1926.0 1569.8,1890.0 782.5,1902.2 92.9,1796.1 107.2,1635.9 51.5,1594.0 24.1,1391.8 33.0,17.0 1331.2,26.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[552.0,564.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.1168218,44.0082353]}},{"type":"Feature","properties":{"resourceCoords":[1572.0,35.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.1140793,44.0092639]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, South-Dakota | 1908 | sanborn08247_004 p6 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.37"},{"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":"2458.8"},{"label":"split_canvas_h","value":"4674.4"}],"created":"2026-10-18T17:19:01Z","modified":"2026-10-18T17:19:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"30.3,967.5 91.5,993.9 93.1,1129.6 130.8,1129.6 131.1,1151.2 131.3,1162.2 613.4,1043.0 613.0,1002.4 592.8,1003.1 572.2,611.5 577.0,256.2 436.4,256.8 138.5,189.0 137.4,73.2 84.2,74.9 39.6,114.8 36.9,967.5 30.3,967.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[112.0,1129.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.1139843,44.0126641]}},{"type":"Feature","properties":{"resourceCoords":[112.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.1139712,44.0149185]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006__10/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, South-Dakota | 1908 | sanborn08247_004 p6 [10]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.47"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4588.0"},{"label":"split_canvas_y","value":"6344.8"},{"label":"split_canvas_w","value":"1924.0"},{"label":"split_canvas_h","value":"1363.2"}],"created":"2026-10-18T17:19:01Z","modified":"2026-10-18T17:19:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006__10/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1605.4,1922.4 1559.6,1651.2 1387.7,1591.3 1228.8,1650.6 1155.8,1723.2 1155.5,1895.2 1605.4,1922.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006__10/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1147.0,1586.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.12158347973018,44.014288576812405]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1586.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.12021992321243,44.014290247881775]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.12021827570233,44.01359513051067]}},{"type":"Feature","properties":{"resourceCoords":[1147.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.12158183222007,44.0135934594413]}},{"type":"Feature","properties":{"resourceCoords":[1225.0,1868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.121361,44.013714]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, South-Dakota | 1908 | sanborn08247_004 p6 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.65"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2448.0"},{"label":"split_canvas_y","value":"3388.8"},{"label":"split_canvas_w","value":"1593.6"},{"label":"split_canvas_h","value":"1768.4"}],"created":"2026-10-18T17:19:01Z","modified":"2026-10-18T17:19:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"633.2,892.7 631.5,1263.5 987.9,1232.3 983.7,914.6 633.2,892.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082471908:08247_1908-0006__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[612.0,847.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.12234786886214,44.009408034164025]}},{"type":"Feature","properties":{"resourceCoords":[1010.4,847.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.12121686441803,44.009397377224005]}},{"type":"Feature","properties":{"resourceCoords":[1010.4,1289.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.12123328188683,44.008496450684454]}},{"type":"Feature","properties":{"resourceCoords":[612.0,1289.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.12236428633094,44.008507107624474]}},{"type":"Feature","properties":{"resourceCoords":[951.5,898.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.121386,44.009295]}}]}}]}