{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn05194_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Hartington, Nebraska | 1920 | 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":"9"},{"label":"placed","value":"8"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 6, georef-snap 2"},{"label":"key map","value":"georeferenced"},{"label":"unplaced pages","value":"p1__2 (tier 1, 42.61675,-97.26550 +/-145m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartington, Nebraska | 1920 | sanborn05194_004 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"9"},{"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":"3700.4"},{"label":"split_canvas_h","value":"3564.0"}],"created":"2026-10-18T18:45:16Z","modified":"2026-10-18T18:45:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"156.1,27.3 42.7,13.3 6.0,43.6 1.3,883.7 578.0,885.4 908.6,888.8 920.0,140.9 711.1,49.0 431.6,44.0 155.9,44.8 156.1,27.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[711.1,49.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.264701,42.6175655]}},{"type":"Feature","properties":{"resourceCoords":[146.0,808.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.266106,42.6161602]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartington, Nebraska | 1920 | sanborn05194_004 p1 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.56"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3541.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4110.4"}],"created":"2026-10-18T18:45:16Z","modified":"2026-10-18T18:45:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1588.4,1353.0 1567.0,1365.7 963.0,1302.5 833.5,1222.1 568.8,1190.2 565.5,1186.8 565.0,1186.8 565.0,1186.7 565.0,1186.2 486.7,1102.7 486.1,1014.6 329.4,927.6 51.5,950.1 32.0,1116.5 63.2,1116.5 61.0,1827.0 1343.1,1825.8 1589.8,1829.9 1588.4,1353.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1089.0,1827.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2632411,42.623634]}},{"type":"Feature","properties":{"resourceCoords":[61.0,1827.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.26602,42.6236495]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartington, Nebraska | 1920 | sanborn05194_004 p1 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.72"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2260.0"},{"label":"split_canvas_y","value":"3541.6"},{"label":"split_canvas_w","value":"1440.4"},{"label":"split_canvas_h","value":"1219.6"}],"created":"2026-10-18T18:45:16Z","modified":"2026-10-18T18:45:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"600.3,1148.5 719.5,1187.8 722.9,1151.7 780.5,1129.9 881.5,1169.0 887.9,920.2 689.8,924.5 604.0,899.3 603.5,899.1 600.3,1148.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[565.0,885.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.26218920820949,42.61860833613694]}},{"type":"Feature","properties":{"resourceCoords":[925.1,885.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.26035617259225,42.61860410821991]}},{"type":"Feature","properties":{"resourceCoords":[925.1,1190.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.26036102629996,42.61746435975954]}},{"type":"Feature","properties":{"resourceCoords":[565.0,1190.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.2621940619172,42.61746858767656]}},{"type":"Feature","properties":{"resourceCoords":[612.9,1169.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.26195,42.6175465]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartington, Nebraska | 1920 | sanborn05194_004 p2","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T18:45:16Z","modified":"2026-10-18T18:45:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.3,1880.3 237.6,1878.8 1027.1,1879.0 1293.5,1883.2 1573.2,1883.2 1573.7,1323.5 1570.3,1043.6 1572.2,766.0 1575.2,1.0 1541.4,1.0 1535.1,54.7 51.6,64.9 41.0,657.0 108.6,919.6 31.8,1431.7 41.6,1804.4 99.3,1880.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1030.0,766.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2673802,42.6236564]}},{"type":"Feature","properties":{"resourceCoords":[237.0,766.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2693694,42.6236665]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartington, Nebraska | 1920 | sanborn05194_004 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.65"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T18:45:16Z","modified":"2026-10-18T18:45:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1329.5,1705.7 1081.2,1702.1 561.3,1701.0 49.8,1702.5 52.1,1201.9 51.9,681.8 48.5,421.7 49.9,163.8 1333.9,161.8 1581.0,165.8 1583.2,423.9 1580.5,682.8 1579.8,1067.7 1589.1,1396.7 1570.5,1912.0 1570.6,1703.4 1329.5,1705.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[563.0,682.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2646465,42.6226119]}},{"type":"Feature","properties":{"resourceCoords":[1078.0,682.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2632564,42.6226036]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartington, Nebraska | 1920 | sanborn05194_004 p4","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T18:45:16Z","modified":"2026-10-18T18:45:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1505.5 1.0,1722.5 4.5,1817.9 270.9,1859.4 300.8,1809.5 386.5,1854.6 524.5,1814.0 545.3,1857.8 934.6,1887.4 1578.0,1857.2 1527.5,79.7 1355.1,32.9 1130.0,93.3 705.4,26.9 105.8,36.3 41.4,72.2 28.6,580.0 23.2,854.3 12.5,1129.2 1.0,1505.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[564.0,594.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2605275,42.6236148]}},{"type":"Feature","properties":{"resourceCoords":[1068.0,1710.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.2591903,42.6215492]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartington, Nebraska | 1920 | sanborn05194_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T18:45:16Z","modified":"2026-10-18T18:45:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"243.2,29.2 1028.7,28.0 1293.8,31.6 1572.0,31.0 1570.0,567.0 1568.9,1847.4 283.3,1880.5 57.4,1824.3 38.1,1293.7 93.0,915.1 35.7,203.0 105.6,31.1 243.2,29.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1562.0,1663.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.26609873813297,42.61855995127446]}},{"type":"Feature","properties":{"resourceCoords":[1562.0,45.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.26606255001379,42.62156169278212]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartington, Nebraska | 1920 | sanborn05194_004 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T18:45:16Z","modified":"2026-10-18T18:45:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"568.5,1761.6 296.3,1762.6 28.0,1769.2 27.9,1752.2 38.5,1753.3 33.2,1425.7 25.0,1425.9 16.9,171.6 553.4,165.6 1098.6,162.3 1359.1,163.9 1612.0,159.6 1612.0,315.6 1612.0,434.6 1590.0,1215.2 1612.0,1221.3 1612.0,1481.6 1612.0,1713.4 1590.9,1706.8 1571.0,1799.7 1479.0,1836.8 773.6,1834.0 773.7,1846.7 568.5,1761.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194hm:g051941920:05194_1920-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1084.0,1237.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.26335260804862,42.61854299733216]}},{"type":"Feature","properties":{"resourceCoords":[573.0,1237.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.26466750681153,42.618558671216164]}}]}}]}