{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn05222_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Nelson, Nebraska | 1892 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"2"},{"label":"placed","value":"1"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 40.20202,-98.06752 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052221892:05222_1892-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Nelson, Nebraska | 1892 | sanborn05222_001 p1 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-21T13:17:57Z","modified":"2026-09-21T13:17:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052221892:05222_1892-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052221892:05222_1892-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,0.0 0.0,-0.0 0.0,1543.5 334.8,1543.2 333.5,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194nm:g052221892:05222_1892-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[307.0,1216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.068731,40.201516]}},{"type":"Feature","properties":{"resourceCoords":[1425.0,655.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.06603,40.2026]}}]}}]}