{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn05830_006.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Chautauqua, New-York | 1912 | key map | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058301912:05830_1912-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chautauqua, New-York | 1912 | sanborn05830_006 p1 [2]","metadata":[{"label":"streets","value":"30"},{"label":"intersections","value":"46"},{"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":"4074.6"}],"created":"2026-10-19T08:00:02Z","modified":"2026-10-19T08:00:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058301912:05830_1912-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058301912:05830_1912-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613,0.0 0.0,0.0 0.0,1018.6 1613,1006.4 1613,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058301912:05830_1912-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[213.0,413.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.471097,42.210241]}},{"type":"Feature","properties":{"resourceCoords":[357.0,263.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.4681578,42.21273]}}]}}]}