{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn05753_002.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Babylon, New-York | 1890 | key map | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804bm:g3804bm_g057531890:05753_1890-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Babylon, New-York | 1890 | sanborn05753_002 p1 [1]","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"24"},{"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":"2026-10-22T13:24:39Z","modified":"2026-10-22T13:24:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804bm:g3804bm_g057531890:05753_1890-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804bm:g3804bm_g057531890:05753_1890-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613,0.0 0.0,0.0 0.0,1913 987.8,1913 987.8,854.7 1613,854.7 1613,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804bm:g3804bm_g057531890:05753_1890-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[412.4,699.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.3194447,40.7004415]}},{"type":"Feature","properties":{"resourceCoords":[500.9,716.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.3193692,40.6992634]}}]}}]}