{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01791_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Chillicothe, Illinois | 1899 | 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":"11"},{"label":"placed","value":"6"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 6"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 40.91994,-89.48775 +/-1170m); p1__3 (tier 4, 40.91994,-89.48775 +/-1170m); p1__4 (tier 4, 40.91994,-89.48775 +/-1170m); p4__3 (tier 1, 40.91999,-89.49185 +/-100m); p5__2 (tier 1, 40.91706,-89.49254 +/-190m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_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":"Chillicothe, Illinois | 1899 | sanborn01791_002 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"3540.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T16:48:11Z","modified":"2026-10-19T16:48:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.0,932.0 87.8,1534.8 87.1,1571.9 196.8,1799.7 739.8,1749.9 811.0,1657.2 709.2,1363.8 818.5,1220.1 879.3,1216.1 727.0,837.9 774.2,403.6 706.2,215.8 581.4,92.7 129.4,159.9 103.3,1.0 94.9,1.0 92.0,321.0 92.0,932.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[92.0,932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4843377,40.9157771]}},{"type":"Feature","properties":{"resourceCoords":[92.0,321.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4838875,40.9168388]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chillicothe, Illinois | 1899 | sanborn01791_002 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T16:48:11Z","modified":"2026-10-19T16:48:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.2,1830.2 165.0,1830.2 165.0,1863.6 888.8,1871.7 1535.5,1811.0 1564.7,1834.3 1566.2,1253.7 1563.5,665.2 1565.2,310.7 1534.1,126.7 1467.0,58.7 1332.5,50.8 1331.3,89.3 951.0,91.0 951.2,1.0 360.9,1.0 362.6,90.1 87.6,89.1 64.2,89.0 91.3,671.3 82.8,671.2 81.3,671.2 108.7,1250.8 111.4,1250.8 86.2,1830.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[951.0,1248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4857999,40.916148]}},{"type":"Feature","properties":{"resourceCoords":[951.0,91.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4849025,40.9182324]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chillicothe, Illinois | 1899 | sanborn01791_002 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T16:48:11Z","modified":"2026-10-19T16:48:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1508.6,62.8 1536.4,652.7 1527.9,652.6 1526.3,652.6 1554.4,1239.7 1557.2,1239.8 1532.2,1826.8 1612.0,1826.8 1612.0,1860.5 68.7,1844.4 59.8,48.9 663.2,31.3 663.0,61.0 1239.4,62.0 1508.6,62.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[663.0,1831.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4903613,40.9161025]}},{"type":"Feature","properties":{"resourceCoords":[663.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4890031,40.9192492]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chillicothe, Illinois | 1899 | sanborn01791_002 p4 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.67"},{"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":"2618.0"},{"label":"split_canvas_h","value":"2639.6"}],"created":"2026-10-19T16:48:11Z","modified":"2026-10-19T16:48:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"642.2,76.9 533.8,24.4 515.2,79.6 323.7,102.7 1.6,23.8 2.9,654.1 88.0,651.0 89.0,616.2 630.5,632.9 642.2,76.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[630.5,632.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4871926,40.9199437]}},{"type":"Feature","properties":{"resourceCoords":[97.1,76.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4881065,40.9213137]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chillicothe, Illinois | 1899 | sanborn01791_002 p4 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.93"},{"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":"2026-10-19T16:48:11Z","modified":"2026-10-19T16:48:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"650.0,1713.9 750.7,1713.4 753.7,1345.0 753.7,1345.0 1081.7,1345.0 1138.0,1345.0 1138.0,1711.7 1235.0,1711.2 1235.2,1801.3 1612.0,1797.9 1612.0,1759.7 1572.4,1757.6 1552.4,1697.3 1575.1,664.3 1507.5,77.3 1456.2,34.8 695.4,48.5 654.5,652.1 654.5,659.9 654.0,659.9 653.7,664.2 102.6,660.5 94.0,656.6 95.0,1235.5 93.3,1803.7 379.7,1803.5 652.2,1803.2 650.0,1713.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1228.0,664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4840167,40.9203014]}},{"type":"Feature","properties":{"resourceCoords":[94.0,664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4867411,40.9209818]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chillicothe, Illinois | 1899 | sanborn01791_002 p5 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.69"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3596.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4055.6"}],"created":"2026-10-19T16:48:11Z","modified":"2026-10-19T16:48:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1561.5,1804.7 1456.7,1608.7 1538.1,1413.8 1533.2,997.1 1458.2,927.7 1351.4,968.0 66.1,934.1 62.9,1535.9 193.1,1886.6 396.3,1912.0 400.1,1912.0 1535.2,1879.3 1561.5,1804.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017911899:01791_1899-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[956.0,1655.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4941937,40.9286333]}},{"type":"Feature","properties":{"resourceCoords":[1511.0,1655.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.4928118,40.9288006]}}]}}]}