{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02731_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Malvern, Iowa | 1886 | 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":"1"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 41.00197,-95.58631 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027311886:02731_1886-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malvern, Iowa | 1886 | sanborn02731_001 p1 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.73"},{"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":"2026-10-18T00:55:24Z","modified":"2026-10-18T00:55:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027311886:02731_1886-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027311886:02731_1886-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1588.5,729.8 1532.6,409.4 1590.3,160.5 1519.6,46.4 1135.3,45.1 999.9,108.7 658.3,93.3 622.9,29.2 445.1,14.3 60.5,77.1 78.9,995.2 121.4,1038.0 573.0,1046.4 589.5,1046.4 589.5,1046.7 591.1,1046.7 638.1,1879.5 1342.7,1881.8 1556.3,1825.6 1487.3,1192.0 1537.3,1142.4 1509.3,1000.0 1588.5,729.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027311886:02731_1886-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[593.0,959.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.5863138,41.0023716]}},{"type":"Feature","properties":{"resourceCoords":[77.0,959.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.5863181,41.0033497]}}]}}]}