{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01708_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Arthur, Illinois | 1893 | 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":"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__1 (tier 1, 39.71537,-88.47248 +/-218m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017081893:01708_1893-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Arthur, Illinois | 1893 | sanborn01708_001 p1 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.03"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4256.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2195.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T01:58:19Z","modified":"2026-10-18T01:58:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017081893:01708_1893-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017081893:01708_1893-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1380.4,28.4 1215.0,70.3 1218.2,44.2 1192.2,40.9 1113.6,98.3 1095.9,326.0 1143.9,863.2 1108.6,1133.5 1116.2,1367.7 1139.7,1407.3 1098.7,1555.0 1120.0,1722.0 1193.1,1818.0 1381.9,1856.1 1395.2,1883.0 1508.3,1874.9 1561.5,1838.0 1593.3,1620.7 1563.2,1316.8 1611.6,296.0 1524.3,31.4 1380.4,28.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017081893:01708_1893-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1534.0,1149.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.497703,39.4573104]}},{"type":"Feature","properties":{"resourceCoords":[1183.1,1149.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.4981679,39.4587174]}}]}}]}