{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn08257_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Plankinton, South-Dakota | 1899 | 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":"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__2 (tier 4, 43.71490,-98.48473 +/-100m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184pm:g082571899:08257_1899-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Plankinton, South-Dakota | 1899 | sanborn08257_003 p1 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"23"},{"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":"2026-09-21T05:21:03Z","modified":"2026-09-21T05:21:03Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184pm:g082571899:08257_1899-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184pm:g082571899:08257_1899-0001/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5002.0,7708.0 5002.0,7500.0 4987.6,5104.4 6512.0,5104.4 6512.0,0.0 -0.0,0.0 -0.0,7708.0 5002.0,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184pm:g082571899:08257_1899-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2500.0,2960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.4851903,43.7153342]}},{"type":"Feature","properties":{"resourceCoords":[352.0,7292.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.4867336,43.7133639]}}]}}]}