{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00138_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Casa Grande, Arizona | 1914 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"2"},{"label":"placed","value":"2"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381914:00138_1914-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casa Grande, Arizona | 1914 | sanborn00138_004 p1 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.40"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"8680.0"},{"label":"split_canvas_h","value":"10240.0"}],"created":"2026-10-18T07:07:13Z","modified":"2026-10-18T07:07:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381914:00138_1914-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381914:00138_1914-0001","type":"ImageService3","width":2170,"height":2560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"170.4,823.8 62.9,1491.3 117.4,1944.8 66.3,2520.6 581.9,2529.6 924.3,2442.0 1413.1,2535.7 2138.2,2516.8 2138.2,249.9 2084.7,90.4 901.2,64.7 925.3,469.1 766.0,760.6 765.2,760.7 765.2,765.0 724.7,765.0 170.4,823.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381914:00138_1914-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1726.0,741.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7559486,32.8773872]}},{"type":"Feature","properties":{"resourceCoords":[1189.0,741.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7564204,32.8767481]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381914:00138_1914-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casa Grande, Arizona | 1914 | sanborn00138_004 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.06"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3060.8"},{"label":"split_canvas_h","value":"3060.0"}],"created":"2026-10-18T07:07:13Z","modified":"2026-10-18T07:07:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381914:00138_1914-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381914:00138_1914-0001","type":"ImageService3","width":2170,"height":2560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"20.0,15.0 1.0,15.0 1.0,107.7 6.8,762.0 58.5,706.6 227.1,763.3 740.5,741.0 731.2,5.8 240.8,5.6 69.9,47.3 80.8,7.4 20.3,10.9 20.0,15.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381914:00138_1914-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[118.0,49.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7547811,32.8789049]}},{"type":"Feature","properties":{"resourceCoords":[118.0,724.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7531,32.877921]}}]}}]}