{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00656_097.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Los Angeles, California | 1954 | key map | mapsnap generated fit (2026-10-24)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-24"},{"label":"run","value":"corpus-v2.2"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195405:00656_05_1954-0000__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Los Angeles, California | 1954 | sanborn00656_097 p0 [1]","metadata":[{"label":"streets","value":"70"},{"label":"intersections","value":"298"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4800.4"},{"label":"split_canvas_h","value":"5903.6"}],"created":"2026-10-24T15:29:14Z","modified":"2026-10-24T15:29:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195405:00656_05_1954-0000__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195405:00656_05_1954-0000","type":"ImageService3","width":1090,"height":1368},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1090,0.0 0.0,0.0 0.0,1368 177.8,1368 213.9,1368 205.8,927.4 440.0,921.6 440.3,957.9 792.0,951.8 795.5,1333.5 1090,1333.5 1090,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195405:00656_05_1954-0000__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[297.8,340.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.2959452,34.0228946]}},{"type":"Feature","properties":{"resourceCoords":[661.7,861.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.2827221,34.0062448]}}]}}]}