{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08202_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Artesian, South-Dakota | 1912 | 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":"9"},{"label":"placed","value":"3"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p2__1 (tier 2, 44.00770,-97.92403 +/-100m); p2__3 (tier 1, 44.00909,-97.91852 +/-100m); p2__5 (tier 1, 44.01122,-97.92145 +/-100m); p2__6 (tier 2, 44.00770,-97.92403 +/-100m); p2__8 (tier 1, 44.00431,-97.92531 +/-100m)"},{"label":"withheld","value":"p2__2 (29.1 km from the catalogue location)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Artesian, South-Dakota | 1912 | sanborn08202_004 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:13:22Z","modified":"2026-09-21T09:13:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,0.0 1628.0,1927.0 1082.3,1927.0 1082.2,1870.2 15.6,1867.2 -0.0,1927.0 -0.0,0.0 1628.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.92418926998118,44.00975814821421]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.91991695862608,44.00975270873761]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.91992584766221,44.006089851731204]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.92419815901732,44.00609529120781]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0002__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Artesian, South-Dakota | 1912 | sanborn08202_004 p2 [4]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"2148.8"},{"label":"split_canvas_y","value":"4706.8"},{"label":"split_canvas_w","value":"4363.2"},{"label":"split_canvas_h","value":"3001.2"}],"created":"2026-09-21T09:13:22Z","modified":"2026-09-21T09:13:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0002__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"564.9,1286.4 565.5,1176.7 543.6,1176.7 540.8,1484.1 539.1,1665.5 537.2,1927.0 1628.0,1927.0 1628.0,1292.4 1578.4,1292.1 1578.5,1238.6 579.8,1230.1 564.9,1286.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0002__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[577.2,1726.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.924159,44.0052084]}},{"type":"Feature","properties":{"resourceCoords":[1577.0,1726.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.9213569,44.0052162]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0002__7/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Artesian, South-Dakota | 1912 | sanborn08202_004 p2 [7]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"6653.6"},{"label":"split_canvas_w","value":"1457.2"},{"label":"split_canvas_h","value":"1054.4"}],"created":"2026-09-21T09:13:22Z","modified":"2026-09-21T09:13:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0002__7/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"359.0,1927.0 364.3,1664.7 265.1,1664.3 0.0,1663.4 -0.0,1927.0 359.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184am:g082021912:08202_1912-0002__7/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1663.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.921603910346,44.004213736906394]}},{"type":"Feature","properties":{"resourceCoords":[364.3,1663.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.92062282797316,44.00421310497495]}},{"type":"Feature","properties":{"resourceCoords":[364.3,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.92062346534338,44.00370143638848]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.92160454771621,44.003702068319924]}},{"type":"Feature","properties":{"resourceCoords":[92.1,1686.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.921356,44.004169]}},{"type":"Feature","properties":{"resourceCoords":[92.1,1686.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.921356,44.004169]}}]}}]}