{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00482_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Corona, California | 1900 | 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 5"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 33.88156,-117.56571 +/-201m); p1__2 (tier 3, 33.88224,-117.56410 +/-808m); p1__3 (tier 1, 33.88190,-117.56522 +/-100m); p1__4 (tier 1, 33.88250,-117.56570 +/-188m); p2__1 (tier 1, 33.87829,-117.56492 +/-189m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Corona, California | 1900 | sanborn00482_001 p2 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.46"},{"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":"4692.0"}],"created":"2026-10-19T17:12:40Z","modified":"2026-10-19T17:12:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1558.9,1171.1 1592.5,336.5 1515.9,258.7 1529.5,87.9 222.2,29.1 222.6,51.8 223.3,101.1 1.0,104.5 1.0,156.9 46.0,199.8 158.4,343.6 159.8,407.7 113.5,459.6 62.2,552.9 53.6,652.3 54.0,1134.0 270.8,1133.0 272.1,1168.7 1558.9,1171.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[54.0,1134.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.56489,33.8773361]}},{"type":"Feature","properties":{"resourceCoords":[54.0,53.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.567281,33.8776054]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Corona, California | 1900 | sanborn00482_001 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:12:40Z","modified":"2026-10-19T17:12:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1589.1,1846.9 1582.3,1511.3 1558.6,1461.4 1556.1,1341.8 1603.8,1340.6 1603.1,1281.8 1554.8,1283.0 1545.8,854.9 1548.2,557.5 1559.1,439.4 1589.9,343.6 1612.0,301.7 1612.0,1.0 1540.2,1.0 1535.6,75.6 1032.3,17.4 632.3,80.1 358.9,24.0 49.2,98.1 45.7,1861.8 979.2,1897.8 979.4,1876.3 1589.1,1846.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[410.0,729.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.5699538,33.8768394]}},{"type":"Feature","properties":{"resourceCoords":[983.0,1308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.5688493,33.8756601]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Corona, California | 1900 | sanborn00482_001 p4","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.31"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:12:40Z","modified":"2026-10-19T17:12:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"306.8,1756.7 320.1,1742.6 399.1,1747.7 461.9,1832.1 1022.6,1894.0 1024.3,1840.5 1612.0,1856.6 1612.0,1855.6 1600.5,1855.3 1578.2,128.6 1104.2,97.9 1108.0,1.0 1073.7,1.0 1067.0,208.2 604.5,191.5 509.2,179.7 421.5,127.2 373.3,80.9 311.7,80.0 169.7,182.9 126.0,225.5 76.6,223.7 81.2,9.1 80.2,9.1 74.1,295.9 52.2,335.4 21.0,425.8 8.3,537.8 1.0,786.6 1.0,1227.7 45.9,1227.5 45.4,1283.4 1.0,1283.5 1.0,1399.5 21.5,1445.3 21.2,1764.4 306.8,1756.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1582.0,1310.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.56395,33.875124]}},{"type":"Feature","properties":{"resourceCoords":[29.0,170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.567281,33.8776054]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Corona, California | 1900 | sanborn00482_001 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.57"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:12:40Z","modified":"2026-10-19T17:12:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"849.5,15.0 1.0,93.2 1.0,94.0 30.6,115.0 38.1,1824.0 39.1,1851.5 1477.6,1899.7 1594.6,1787.8 1596.3,1538.3 1612.0,1540.5 1612.0,1173.5 1601.5,858.4 1587.0,623.1 1583.5,323.7 1576.2,106.1 1010.0,80.5 942.3,1.0 861.1,1.0 849.5,15.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[569.0,1159.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.5680688,33.8724278]}},{"type":"Feature","properties":{"resourceCoords":[35.0,1720.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.5694975,33.8715314]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Corona, California | 1900 | sanborn00482_001 p6","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T17:12:40Z","modified":"2026-10-19T17:12:40Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1602.2,55.0 1596.4,666.5 1597.5,667.5 1590.5,1744.0 1584.5,1791.9 1528.0,1878.3 54.8,1867.2 10.7,297.8 61.3,23.0 440.9,39.7 767.3,44.0 1011.3,40.5 1321.1,51.3 1602.2,55.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004821900:00482_1900-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[485.0,605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.5644292,33.8720351]}},{"type":"Feature","properties":{"resourceCoords":[1585.0,1744.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.5616174,33.8738164]}}]}}]}