{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn00432_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Brawley, California | 1916 | key map | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364bm:g4364bm_g004321916:00432_1916-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brawley, California | 1916 | sanborn00432_003 p1 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3338.5"},{"label":"split_canvas_w","value":"4633.6"},{"label":"split_canvas_h","value":"4735.6"}],"created":"2026-09-23T02:44:22Z","modified":"2026-09-23T02:44:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364bm:g4364bm_g004321916:00432_1916-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364bm:g4364bm_g004321916:00432_1916-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1158.4,1913 1158.4,1913 1137.3,836.2 4.9,834.6 0.0,834.6 0.0,1587.2 -0.0,1913 1158.4,1913\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364bm:g4364bm_g004321916:00432_1916-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[108.8,991.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-115.5286253,32.9786271]}},{"type":"Feature","properties":{"resourceCoords":[108.8,1205.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-115.5626122,32.7928291]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364bm:g4364bm_g004321916:00432_1916-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brawley, California | 1916 | sanborn00432_003 p1 [2]","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"19"},{"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":"2026-09-23T02:44:22Z","modified":"2026-09-23T02:44:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364bm:g4364bm_g004321916:00432_1916-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364bm:g4364bm_g004321916:00432_1916-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613,1913 1613,0.0 759.8,0.0 693.8,0.0 0.0,0.0 0.0,797.6 18.2,799.4 0.0,831.6 0.0,834.6 1137.3,836.2 1158.4,1913 1613,1913\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364bm:g4364bm_g004321916:00432_1916-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[51.5,358.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-115.5436393,32.9797379]}},{"type":"Feature","properties":{"resourceCoords":[526.8,412.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-115.5320465,32.9786272]}}]}}]}