{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08248_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Mellette, South-Dakota | 1898 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"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:gmd418m:g4184m:g4184mm:g082481898:08248_1898-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mellette, South-Dakota | 1898 | sanborn08248_002 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-21T05:35:15Z","modified":"2026-09-21T05:35:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082481898:08248_1898-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082481898:08248_1898-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1927.0 1628.0,0.0 656.1,0.0 657.0,294.5 0.0,294.0 -0.0,1927.0 1628.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082481898:08248_1898-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[190.0,1118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.4990358,45.1544237]}},{"type":"Feature","properties":{"resourceCoords":[722.0,48.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.4975879,45.156432]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082481898:08248_1898-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mellette, South-Dakota | 1898 | sanborn08248_002 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2628.0"},{"label":"split_canvas_h","value":"1178.0"}],"created":"2026-09-21T05:35:15Z","modified":"2026-09-21T05:35:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082481898:08248_1898-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082481898:08248_1898-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 0.0,294.0 657.0,294.5 656.1,0.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184mm:g082481898:08248_1898-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.50158635328077,45.155947039189485]}},{"type":"Feature","properties":{"resourceCoords":[657.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.49983549646626,45.15594863443661]}},{"type":"Feature","properties":{"resourceCoords":[657.0,294.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.49983448830413,45.155393865487625]}},{"type":"Feature","properties":{"resourceCoords":[0.0,294.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.50158534511864,45.1553922702405]}},{"type":"Feature","properties":{"resourceCoords":[415.0,265.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.5004795,45.155448]}}]}}]}