{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn05231_005.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ord, Nebraska | 1924 | key map | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194om:g052311924:05231_1924-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ord, Nebraska | 1924 | sanborn05231_005 p1 [1]","metadata":[{"label":"streets","value":"19"},{"label":"intersections","value":"26"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6878.4"},{"label":"split_canvas_h","value":"5664.5"}],"created":"2026-09-23T09:13:53Z","modified":"2026-09-23T09:13:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194om:g052311924:05231_1924-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194om:g052311924:05231_1924-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613,0.0 0.0,-0.0 0.0,1098.0 1136.8,1097.5 1149.4,1416.1 1234.7,1415.8 1613,1414.1 1613,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194om:g052311924:05231_1924-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[373.5,644.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.934147,41.5976665]}},{"type":"Feature","properties":{"resourceCoords":[248.2,495.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.9378274,41.601304]}}]}}]}