{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08996_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Chase City, Virginia | 1907 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"15"},{"label":"placed","value":"5"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef 3, georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"4 sheet(s) cut into 13 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 36.79993,-78.46054 +/-491m); p1__4 (tier 4, 36.79993,-78.46054 +/-491m); p4__1 (tier 1, 36.80032,-78.45558 +/-272m); p4__2 (tier 1, 36.79849,-78.46678 +/-125m); p5__2 (tier 1, 36.80130,-78.46184 +/-104m); p5__3 (tier 1, 36.80383,-78.47088 +/-100m); p6__1 (tier 4, 36.79993,-78.46054 +/-491m); p6__2 (tier 4, 36.79993,-78.46054 +/-491m); p6__3 (tier 4, 36.79993,-78.46054 +/-491m); p6__4 (tier 4, 36.79993,-78.46054 +/-491m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chase City, Virginia | 1907 | sanborn08996_002 p1 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.50"},{"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":"3428.0"},{"label":"split_canvas_h","value":"2494.0"}],"created":"2026-10-19T01:57:05Z","modified":"2026-10-19T01:57:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"842.7,88.5 374.2,64.9 80.6,53.5 23.3,58.8 21.4,395.4 69.3,581.3 740.0,617.2 728.1,543.9 835.4,460.1 834.5,314.2 767.1,266.9 805.6,96.9 856.0,94.2 842.7,88.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.45956260021617,36.79910977284007]}},{"type":"Feature","properties":{"resourceCoords":[857.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.45768326139196,36.799655883328654]}},{"type":"Feature","properties":{"resourceCoords":[857.0,623.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.45718752577531,36.79855828606283]}},{"type":"Feature","properties":{"resourceCoords":[0.0,623.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.45906686459952,36.79801217557424]}},{"type":"Feature","properties":{"resourceCoords":[374.0,65.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.45869,36.799234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chase City, Virginia | 1907 | sanborn08996_002 p1 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2494.0"},{"label":"split_canvas_w","value":"3428.0"},{"label":"split_canvas_h","value":"2502.8"}],"created":"2026-10-19T01:57:05Z","modified":"2026-10-19T01:57:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"285.4,1201.2 308.3,1232.5 836.4,1243.0 827.1,904.0 785.3,934.9 767.4,863.5 830.9,831.5 765.2,820.2 781.0,696.7 655.6,645.0 27.6,661.0 19.1,1232.0 106.4,1242.3 152.7,1153.3 243.4,1235.6 285.4,1201.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[626.0,990.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.45811304263903,36.79667903270852]}},{"type":"Feature","properties":{"resourceCoords":[106.0,990.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.45932518380938,36.79672611330849]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chase City, Virginia | 1907 | sanborn08996_002 p2","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:57:05Z","modified":"2026-10-19T01:57:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1151.7,1871.0 1138.2,1871.1 662.8,1864.5 365.0,1863.9 78.3,1862.2 93.7,1474.5 86.5,1057.2 95.7,652.5 98.8,261.4 92.7,18.7 1547.4,63.7 1568.1,1839.0 1151.8,1876.4 1151.7,1871.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[88.0,1146.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.460456,36.80017]}},{"type":"Feature","properties":{"resourceCoords":[1241.0,1146.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.45793,36.800821]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chase City, Virginia | 1907 | sanborn08996_002 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:57:05Z","modified":"2026-10-19T01:57:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1530.1,1856.3 1539.9,1473.7 1527.2,1062.2 1530.8,663.0 1528.5,277.1 1519.1,37.9 1110.3,30.8 1109.3,30.8 985.3,34.4 654.7,45.0 255.4,60.9 1.0,75.3 1.0,101.5 27.4,101.3 63.1,1856.8 1530.1,1856.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[109.0,1158.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.46362,36.799377]}},{"type":"Feature","properties":{"resourceCoords":[1530.0,1859.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.4599705,36.7989032]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chase City, Virginia | 1907 | sanborn08996_002 p5 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.73"},{"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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T01:57:05Z","modified":"2026-10-19T01:57:05Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1807.4 1578.5,1806.4 1550.3,1126.4 1352.0,1068.0 1330.8,1068.0 1303.3,1068.0 1268.5,1043.5 1218.5,479.8 796.6,544.6 603.1,474.7 613.4,346.9 429.6,318.7 238.4,241.8 313.8,343.1 78.3,907.5 38.3,1727.5 118.7,1861.3 483.2,1863.9 483.6,1837.3 743.4,1826.1 1149.6,1815.5 1485.9,1809.2 1612.0,1810.6 1612.0,1807.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g089961907:08996_1907-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[617.0,1812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.46432999919861,36.80137062711663]}},{"type":"Feature","properties":{"resourceCoords":[63.0,1812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.46554021423873,36.80105901534599]}}]}}]}