{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn05889_002.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dunkirk, New-York | 1893 | key map | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804dm:g3804dm_g058891893:05889_1893-0000__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dunkirk, New-York | 1893 | sanborn05889_002 p0 [1]","metadata":[{"label":"streets","value":"34"},{"label":"intersections","value":"78"},{"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":"8074.1"}],"created":"2026-09-22T22:26:28Z","modified":"2026-09-22T22:26:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804dm:g3804dm_g058891893:05889_1893-0000__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804dm:g3804dm_g058891893:05889_1893-0000","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913 1613,1913 1613,399.6 1399.5,342.9 1298.3,321.4 1299.7,0.0 -0.0,0.0 -0.0,1913 -0.0,1913\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804dm:g3804dm_g058891893:05889_1893-0000__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[919.8,1383.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.3298368,42.4838348]}},{"type":"Feature","properties":{"resourceCoords":[553.0,1686.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.3366749,42.4771989]}}]}}]}