{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08254_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Parkston, South-Dakota | 1904 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"6"},{"label":"placed","value":"3"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 43.39550,-97.98762 +/-195m); p2__3 (tier 2, 43.39558,-97.98723 +/-100m); p2__4 (tier 2, 43.39558,-97.98723 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkston, South-Dakota | 1904 | sanborn08254_003 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.93"},{"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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-22T13:32:00Z","modified":"2026-10-22T13:32:00Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"104.1,1874.7 151.3,1839.6 562.0,1897.9 1306.3,1808.8 1306.7,1709.6 1419.0,1654.0 1419.0,1634.0 1462.8,1632.3 1516.2,676.0 1510.7,307.6 1440.7,87.7 689.9,28.0 215.2,33.2 108.7,89.5 105.5,143.9 99.2,673.4 103.2,1483.1 119.7,1483.3 104.1,1874.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1151.0,949.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.984583,43.394733]}},{"type":"Feature","properties":{"resourceCoords":[100.0,949.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.987337,43.394725]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkston, South-Dakota | 1904 | sanborn08254_003 p2 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.41"},{"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":"3952.8"},{"label":"split_canvas_h","value":"1642.4"}],"created":"2026-10-22T13:32:00Z","modified":"2026-10-22T13:32:00Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"98.8,379.5 355.3,381.0 352.7,407.3 366.4,407.2 793.7,403.5 820.7,403.2 849.8,379.7 976.7,331.8 897.1,46.8 312.4,45.0 85.5,175.8 55.8,329.0 98.8,379.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[820.2,379.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.9873491,43.396758]}},{"type":"Feature","properties":{"resourceCoords":[278.1,379.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.988726,43.396755]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkston, South-Dakota | 1904 | sanborn08254_003 p2 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.79"},{"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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-22T13:32:00Z","modified":"2026-10-22T13:32:00Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1510.3,1.0 1048.7,1.0 990.1,696.5 990.2,708.0 989.1,708.0 988.7,713.5 861.8,708.0 861.5,708.0 861.5,708.0 861.5,708.0 860.8,623.2 611.6,407.2 75.6,412.9 47.1,1055.0 104.4,1132.0 55.4,1167.8 71.8,1386.3 136.3,1477.3 487.2,1488.5 487.7,1488.5 487.7,1488.9 488.0,1529.4 535.4,1861.0 1530.0,1878.7 1539.5,1871.4 1549.3,1481.5 1533.0,1481.6 1517.2,675.6 1515.8,148.6 1510.3,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184pm:g082541904:08254_1904-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[483.0,1498.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.990087,43.393698]}},{"type":"Feature","properties":{"resourceCoords":[1522.0,950.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.987337,43.394725]}}]}}]}