{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08263_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Sioux Falls, South-Dakota | 1883 | 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":"9"},{"label":"placed","value":"3"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 2, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 43.55128,-96.72294 +/-139m); p1__2 (tier 1, 43.54625,-96.71745 +/-117m); p1__3 (tier 4, 43.54756,-96.72735 +/-271m); p2__1 (tier 4, 43.54756,-96.72735 +/-271m); p2__2 (tier 4, 43.54756,-96.72735 +/-271m); p2__3 (tier 4, 43.54756,-96.72735 +/-271m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1883 | sanborn08263_001 p1 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.63"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3610.4"},{"label":"split_canvas_w","value":"3434.0"},{"label":"split_canvas_h","value":"4097.6"}],"created":"2026-10-18T15:04:35Z","modified":"2026-10-18T15:04:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"40.5,914.8 172.7,1260.6 129.8,1260.7 130.0,1806.4 169.8,1899.7 781.0,1891.7 823.9,1791.0 780.5,1625.8 815.6,1050.8 355.4,1022.8 204.3,958.4 146.9,994.4 40.5,914.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,902.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72506657550068,43.54623622780207]}},{"type":"Feature","properties":{"resourceCoords":[858.5,902.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72507004303289,43.54462537570642]}},{"type":"Feature","properties":{"resourceCoords":[858.5,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7277230919424,43.54462837343505]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.72771962441018,43.546239225530705]}},{"type":"Feature","properties":{"resourceCoords":[129.9,1571.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7267987,43.5459944]}},{"type":"Feature","properties":{"resourceCoords":[129.9,1571.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7267987,43.5459944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0002__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1883 | sanborn08263_001 p2 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1582.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"6126.0"}],"created":"2026-10-18T15:04:35Z","modified":"2026-10-18T15:04:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0002__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1627.0,1884.2 1627.0,1847.1 1533.8,1846.5 1540.7,1440.8 1541.1,1272.7 1555.7,770.3 1520.4,691.4 1528.9,395.5 1526.6,395.5 1460.4,395.5 1460.3,407.6 1352.4,427.9 132.6,414.6 74.5,478.5 3.6,398.8 1.3,1919.7 303.6,1926.0 1392.5,1926.0 1608.0,1887.5 1608.0,1887.0 1612.3,1886.8 1627.0,1884.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0002__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[135.0,1261.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.72833882676447,43.55121350288373]}},{"type":"Feature","properties":{"resourceCoords":[1522.0,1261.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7282995350274,43.54860629015691]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sioux Falls, South-Dakota | 1883 | sanborn08263_001 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T15:04:35Z","modified":"2026-10-18T15:04:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"233.3,1853.5 1.0,1896.3 1.0,1919.5 35.8,1920.0 854.1,1824.1 1528.1,1870.9 1601.0,1656.1 1547.3,988.7 1554.5,988.6 1515.4,895.2 1519.1,350.6 1561.8,350.7 1432.4,4.7 1421.5,1.0 1415.7,1.0 1265.6,54.6 125.2,34.0 60.4,69.5 58.8,365.9 127.2,365.5 120.3,661.4 156.0,740.1 144.1,1242.5 144.6,1410.7 139.9,1816.4 233.1,1816.5 233.3,1853.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184sm:g082631883:08263_1883-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[820.0,1241.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.728315,43.5472991]}},{"type":"Feature","properties":{"resourceCoords":[820.0,1817.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7298095,43.5472931]}}]}}]}