{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00798_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ross, California | 1942 | 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":"10"},{"label":"placed","value":"5"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef-snap 3, snap:0 1, georef 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 37.96330,-122.55723 +/-1139m); p2 (tier 1, 37.96415,-122.56697 +/-516m); p3 (tier 1, 37.96606,-122.56024 +/-516m); p5__1 (tier 2, 37.95875,-122.55255 +/-199m); p6__1 (tier 1, 37.95360,-122.54509 +/-350m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ross, California | 1942 | sanborn00798_002 p1 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.37"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2121.2"},{"label":"split_canvas_y","value":"3957.6"},{"label":"split_canvas_w","value":"4330.8"},{"label":"split_canvas_h","value":"3694.4"}],"created":"2026-10-19T17:49:14Z","modified":"2026-10-19T17:49:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1427.2,1046.3 1355.5,1011.5 572.3,1011.9 539.5,1214.2 530.7,1911.5 741.1,1912.0 1432.6,1912.0 1527.8,1575.3 1530.2,1576.5 1507.8,1108.8 1440.5,1081.9 1424.8,1073.1 1427.2,1046.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1014.2,1255.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.56430095825249,37.9613434666751]}},{"type":"Feature","properties":{"resourceCoords":[1182.1,1384.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.56334475261659,37.961127362463984]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ross, California | 1942 | sanborn00798_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.78"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:49:14Z","modified":"2026-10-19T17:49:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"147.4,544.0 84.1,885.5 32.0,891.1 64.5,1024.7 50.4,1343.8 79.7,1514.0 46.8,1846.4 84.3,1872.4 1594.0,1887.8 1594.0,1886.0 1594.6,1886.0 1612.0,1100.1 1612.0,1091.4 1574.6,885.9 1553.3,417.4 1592.0,116.7 1544.4,35.2 959.1,18.7 612.4,60.5 455.9,29.9 186.7,37.9 140.8,1.9 14.2,36.5 1.0,31.5 1.0,58.2 16.3,65.1 85.2,85.5 149.9,544.9 147.4,544.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[426.0,1007.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.5596226508231,37.95956820445356]}},{"type":"Feature","properties":{"resourceCoords":[1429.0,2360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.55326232669765,37.95576151791998]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ross, California | 1942 | sanborn00798_002 p5 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2622.8"},{"label":"split_canvas_w","value":"1676.0"},{"label":"split_canvas_h","value":"1749.2"}],"created":"2026-10-19T17:49:14Z","modified":"2026-10-19T17:49:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"373.1,1092.0 400.1,1092.0 413.5,856.0 375.0,815.7 335.1,779.4 333.7,716.3 379.4,715.4 325.5,662.8 253.1,666.5 276.8,689.7 265.6,704.8 220.2,706.5 158.6,668.3 76.4,665.8 16.8,896.6 59.9,1079.3 374.4,1085.7 373.1,1092.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,655.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.5612022403577,37.970414256623954]}},{"type":"Feature","properties":{"resourceCoords":[419.0,655.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.55929672075573,37.97080431527898]}},{"type":"Feature","properties":{"resourceCoords":[419.0,1093.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.55878311886586,37.96922293287687]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1093.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.56068863846784,37.96883287422184]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0005__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ross, California | 1942 | sanborn00798_002 p5 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.55"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3606.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4046.0"}],"created":"2026-10-19T17:49:14Z","modified":"2026-10-19T17:49:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0005__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"534.2,1912.0 878.4,1912.0 1048.5,1862.2 1263.5,1912.0 1408.8,1911.5 1504.5,1870.5 1557.6,1885.5 1585.6,1813.9 1599.9,1374.3 1571.5,1165.3 1425.0,1089.5 1344.5,1009.8 1178.8,947.6 1088.0,944.5 784.8,1070.6 746.0,1112.7 616.4,1125.2 109.3,1094.8 106.3,1091.7 60.0,1091.5 59.9,1155.0 99.2,1192.7 137.0,1234.3 117.6,1472.2 90.4,1471.5 32.1,1728.8 42.6,1853.0 73.0,1880.7 234.9,1888.8 236.0,1911.8 534.2,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0005__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,901.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.56012452032341,37.9711204186637]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,901.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.55289928617482,37.9727516116498]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.55161016762274,37.96915282000971]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.55883540177132,37.967521627023615]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ross, California | 1942 | sanborn00798_002 p6 [2]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.70"},{"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":"6299.2"}],"created":"2026-10-19T17:49:14Z","modified":"2026-10-19T17:49:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1611.0,1561.7 1582.6,522.5 1612.0,6.8 1612.0,6.5 1574.8,1.0 1571.0,1.0 1568.9,40.5 1559.6,51.6 1482.0,75.6 1352.1,18.8 619.5,15.4 406.4,118.7 321.8,109.0 266.5,51.3 203.9,91.0 166.4,41.4 40.7,30.9 38.7,586.0 67.6,674.1 2.1,726.6 1.3,762.6 33.8,807.0 74.9,807.9 75.8,882.5 52.5,1005.4 18.6,1027.7 14.3,1219.4 6.4,1230.5 1.4,1572.3 1611.0,1561.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364rm:g4364rm_g007981942:00798_1942-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1270.0,634.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.5465397,37.9548653]}},{"type":"Feature","properties":{"resourceCoords":[97.0,634.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.5505293,37.9578747]}}]}}]}