{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn05225_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"North Platte, Nebraska | 1903 | 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":"12"},{"label":"placed","value":"8"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 8"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 41.13410,-100.76744 +/-204m); p1__3 (tier 4, 41.13955,-100.76163 +/-522m); p5__4 (tier 1, 41.14506,-100.77920 +/-100m); p5__5 (tier 1, 41.14116,-100.76159 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"North Platte, Nebraska | 1903 | sanborn05225_003 p1 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.14"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3202.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2279.6"}],"created":"2026-10-18T22:30:52Z","modified":"2026-10-18T22:30:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"69.8,848.0 73.8,1229.7 149.8,1329.2 1360.5,1339.8 1558.8,1300.5 1555.1,910.6 1555.1,909.7 1531.0,887.2 1531.4,846.1 1074.0,841.6 330.1,833.1 1.0,830.9 1.0,847.0 69.8,848.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1074.0,1316.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.762266,41.135398]}},{"type":"Feature","properties":{"resourceCoords":[1074.0,841.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.762052,41.13637]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"North Platte, Nebraska | 1903 | sanborn05225_003 p1 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2200.4"},{"label":"split_canvas_y","value":"5433.2"},{"label":"split_canvas_w","value":"4251.6"},{"label":"split_canvas_h","value":"2218.8"}],"created":"2026-10-18T22:30:52Z","modified":"2026-10-18T22:30:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"597.0,1869.2 1541.4,1885.0 1589.0,1792.6 1542.4,1393.1 586.7,1393.3 597.0,1869.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1085.0,1870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.758447,41.140948]}},{"type":"Feature","properties":{"resourceCoords":[1568.0,1870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.757216,41.140791]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"North Platte, Nebraska | 1903 | sanborn05225_003 p2","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:30:52Z","modified":"2026-10-18T22:30:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1565.3,296.4 1556.8,296.5 1550.8,542.9 1560.0,1333.8 1562.9,1875.8 55.1,1875.8 44.5,1867.2 70.7,74.1 819.3,12.3 1552.9,70.2 1561.3,69.3 1565.3,296.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[550.0,809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.767742,41.139133]}},{"type":"Feature","properties":{"resourceCoords":[1059.0,1862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.7669588,41.1370192]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"North Platte, Nebraska | 1903 | sanborn05225_003 p3","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:30:52Z","modified":"2026-10-18T22:30:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"558.1,20.9 1533.5,61.1 1558.7,287.5 1562.8,287.4 1565.1,594.6 1569.1,800.1 1566.0,1854.0 746.9,1855.4 383.4,1857.6 383.7,1875.4 73.1,1875.2 70.7,1334.2 62.0,544.8 68.2,298.9 76.6,298.8 72.8,72.1 558.1,20.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1566.0,1854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.762052,41.13637]}},{"type":"Feature","properties":{"resourceCoords":[73.0,1858.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.765722,41.136858]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"North Platte, Nebraska | 1903 | sanborn05225_003 p4","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:30:52Z","modified":"2026-10-18T22:30:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"564.2,1912.0 564.3,1887.7 564.5,1842.7 65.3,1841.3 74.7,796.9 71.9,593.1 71.4,288.7 67.4,288.7 43.8,64.2 387.2,80.5 853.4,21.4 1361.0,34.6 1553.4,145.6 1567.2,134.7 1571.9,289.4 1562.8,289.4 1558.0,806.0 1557.2,1066.7 1559.2,1322.7 1557.8,1876.6 590.3,1878.6 590.9,1912.0 564.2,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1558.0,806.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.757903,41.137822]}},{"type":"Feature","properties":{"resourceCoords":[1558.0,1844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.758349,41.135882]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"North Platte, Nebraska | 1903 | sanborn05225_003 p5 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.95"},{"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":"4345.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T22:30:52Z","modified":"2026-10-18T22:30:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.2,126.7 62.8,281.3 53.7,281.3 51.6,797.6 52.1,1058.1 55.5,1313.8 56.9,1867.4 1030.0,1860.3 1034.3,105.2 637.2,24.5 113.0,81.9 57.2,126.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[553.1,791.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.756656,41.137667]}},{"type":"Feature","properties":{"resourceCoords":[553.1,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.7571175,41.13572]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"North Platte, Nebraska | 1903 | sanborn05225_003 p5 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.05"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4335.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2116.8"},{"label":"split_canvas_h","value":"1920.8"}],"created":"2026-10-18T22:30:52Z","modified":"2026-10-18T22:30:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1576.0,449.6 1596.3,411.2 1593.4,102.0 1572.0,161.2 1542.2,147.8 1527.7,94.3 1571.8,22.1 1450.2,56.4 1107.8,13.7 1112.9,445.0 1576.0,449.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1126.7,453.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.764152,41.143676]}},{"type":"Feature","properties":{"resourceCoords":[1576.0,453.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.762902,41.14351]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"North Platte, Nebraska | 1903 | sanborn05225_003 p5 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.60"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4320.4"},{"label":"split_canvas_y","value":"1906.4"},{"label":"split_canvas_w","value":"2131.6"},{"label":"split_canvas_h","value":"2093.6"}],"created":"2026-10-18T22:30:52Z","modified":"2026-10-18T22:30:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1092.8,992.9 1606.4,994.0 1607.7,481.6 1095.3,487.5 1092.8,992.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052251903:05225_1903-0005__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1080.1,476.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.76165789995632,41.14340002645776]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,476.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.760337864667,41.14322004442091]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1000.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.76057247415544,41.14224128199794]}},{"type":"Feature","properties":{"resourceCoords":[1080.1,1000.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.76189250944476,41.142421264034795]}},{"type":"Feature","properties":{"resourceCoords":[1570.0,502.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.760456,41.143186]}}]}}]}