{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn06780_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Madison, Ohio | 1924 | 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":"5"},{"label":"placed","value":"3"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 41.77213,-81.04742 +/-178m); p2__1 (tier 2, 41.77170,-81.04681 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, Ohio | 1924 | sanborn06780_004 p1 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.34"},{"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":"2026-10-18T06:57:13Z","modified":"2026-10-18T06:57:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"223.8,148.8 33.6,120.8 12.8,157.6 174.8,199.4 30.3,756.0 61.0,1187.5 152.7,1342.5 121.6,1528.3 43.0,1559.3 57.1,1870.4 911.6,1903.0 1342.0,1835.3 1550.6,1730.6 1577.1,1264.6 1491.3,1117.9 1495.0,964.1 1257.8,931.9 976.8,590.8 1095.8,449.3 1096.0,449.0 1085.5,72.4 964.5,31.7 557.9,151.8 566.0,188.0 493.9,184.1 223.8,148.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[566.0,188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.0471102,41.7716761]}},{"type":"Feature","properties":{"resourceCoords":[566.0,1866.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.0512392,41.7711611]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, Ohio | 1924 | sanborn06780_004 p2 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.70"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1148.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3238.8"},{"label":"split_canvas_h","value":"2896.8"}],"created":"2026-10-18T06:57:13Z","modified":"2026-10-18T06:57:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"869.2,722.7 979.9,722.0 1053.5,454.4 855.6,19.2 309.8,45.0 628.8,711.5 869.2,722.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[287.1,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.04797378021962,41.7744269167633]}},{"type":"Feature","properties":{"resourceCoords":[1096.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.04613489586265,41.77380201647794]}},{"type":"Feature","properties":{"resourceCoords":[1096.8,724.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.04688275863913,41.77257443502434]}},{"type":"Feature","properties":{"resourceCoords":[287.1,724.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.0487216429961,41.773199335309705]}},{"type":"Feature","properties":{"resourceCoords":[782.9,327.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.0471851,41.7734888]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madison, Ohio | 1924 | sanborn06780_004 p2 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.55"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3450.8"},{"label":"split_canvas_y","value":"3383.6"},{"label":"split_canvas_w","value":"3061.2"},{"label":"split_canvas_h","value":"4324.4"}],"created":"2026-10-18T06:57:13Z","modified":"2026-10-18T06:57:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"895.4,1812.0 1160.1,1873.8 1231.4,1884.9 1226.9,1848.1 1627.0,1771.9 1591.8,1746.0 1595.8,875.8 1348.9,928.9 1149.6,889.8 1015.1,1026.0 1027.5,1449.9 921.7,1811.7 895.4,1812.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084mm:g4084mm_g067801924:06780_1924-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[862.7,845.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.04484921030544,41.77284722805553]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,845.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.04434825705007,41.7714702344226]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.04695253941739,41.77094174287351]}},{"type":"Feature","properties":{"resourceCoords":[862.7,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.04745349267276,41.77231873650644]}},{"type":"Feature","properties":{"resourceCoords":[1231.4,1885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.0471102,41.7716761]}},{"type":"Feature","properties":{"resourceCoords":[1231.4,1885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.0471102,41.7716761]}},{"type":"Feature","properties":{"resourceCoords":[1231.4,1885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.0471102,41.7716761]}},{"type":"Feature","properties":{"resourceCoords":[1231.4,1885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.0471102,41.7716761]}}]}}]}