{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00953_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Aurora, Colorado | 1926 | 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":"3"},{"label":"placed","value":"3"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef 1, snap:0 1, georef-snap 1"},{"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:gmd431m:g4314m:g4314am:g009531926:00953_1926-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1926 | sanborn00953_001 p1 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.97"},{"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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T17:53:33Z","modified":"2026-10-18T17:53:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"71.2,1863.8 1035.7,1868.0 1044.0,1210.0 1073.0,1182.2 1228.0,1180.0 1274.3,1179.3 1408.8,1177.4 1532.0,1166.3 1569.1,1070.2 1548.3,49.9 1541.9,69.4 1492.0,48.5 594.6,26.4 283.9,144.3 106.5,144.0 74.9,117.7 75.3,472.4 73.8,1090.0 68.2,1090.0 71.2,1863.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1065.0,66.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.8728898,39.741981]}},{"type":"Feature","properties":{"resourceCoords":[75.0,66.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.8752389,39.7419785]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1926 | sanborn00953_001 p1 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4292.0"},{"label":"split_canvas_y","value":"4700.8"},{"label":"split_canvas_w","value":"2160.0"},{"label":"split_canvas_h","value":"2951.2"}],"created":"2026-10-18T17:53:33Z","modified":"2026-10-18T17:53:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1099.2,1215.9 1119.6,1849.5 1537.6,1816.6 1539.3,1197.3 1099.2,1215.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1073.0,1175.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-104.87290990517481,39.743719674937466]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1175.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-104.87161888204555,39.74371062264147]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-104.87163485863451,39.742344360888296]}},{"type":"Feature","properties":{"resourceCoords":[1073.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-104.87292588176378,39.74235341318429]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Colorado | 1926 | sanborn00953_001 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T17:53:33Z","modified":"2026-10-18T17:53:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"40.4,1860.2 41.0,1614.6 66.6,64.6 1482.0,51.1 1539.7,98.8 1542.1,456.3 1544.1,1078.6 1538.5,1078.6 1546.0,1858.2 40.4,1860.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd431m:g4314m:g4314am:g009531926:00953_1926-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[545.0,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.87758111131008,39.74193875659279]}},{"type":"Feature","properties":{"resourceCoords":[1534.0,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.87525208522887,39.74193107802361]}}]}}]}