{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07326_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bay City, Oregon | 1928 | 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":"9"},{"label":"placed","value":"6"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 5, snap:0 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 45.55855,-123.91288 +/-206m); p3__3 (tier 2, 45.54094,-123.90052 +/-2503m); p3__4 (tier 1, 45.56219,-123.90837 +/-110m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bay City, Oregon | 1928 | sanborn07326_003 p1 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.68"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1494.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"6158.0"}],"created":"2026-10-18T10:05:17Z","modified":"2026-10-18T10:05:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1873.6 1.0,1909.6 1595.2,1906.0 1589.5,924.1 1131.3,911.5 1124.2,908.9 1123.7,908.9 1123.7,908.7 1123.7,908.7 1119.7,714.5 1118.3,644.9 1118.0,631.4 848.8,436.6 848.8,436.6 832.5,393.5 42.4,402.6 1.0,1873.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[432.0,875.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8911497,45.5278811]}},{"type":"Feature","properties":{"resourceCoords":[1209.0,1278.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8891458,45.5271155]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bay City, Oregon | 1928 | sanborn07326_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T10:05:17Z","modified":"2026-10-18T10:05:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1609.1,353.0 1611.7,1360.1 1539.9,1859.4 819.1,1900.1 67.4,1858.0 14.5,803.8 82.2,570.5 55.9,46.9 1548.4,26.6 1609.1,353.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.91510971668892,45.55848713267194]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.91494508538052,45.561619962322034]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.90967555531016,45.5614822925706]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.90984018661854,45.55834946292051]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bay City, Oregon | 1928 | sanborn07326_003 p3 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.01"},{"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":"2026-10-18T10:05:17Z","modified":"2026-10-18T10:05:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1074.0,1846.0 1074.8,1807.1 1445.3,1706.7 1450.2,1713.9 1583.6,1609.3 1612.0,1608.8 1608.1,1582.8 1578.1,67.8 1362.6,20.6 64.6,18.5 18.1,190.7 76.8,530.7 319.5,548.3 339.0,548.6 339.0,549.7 343.3,550.0 415.9,919.1 647.5,966.9 657.2,991.0 659.4,996.2 971.7,1679.3 969.5,1801.9 1074.0,1846.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1145.0,826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8881301,45.5217709]}},{"type":"Feature","properties":{"resourceCoords":[1525.0,826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8871156,45.5217839]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bay City, Oregon | 1928 | sanborn07326_003 p3 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2173.6"},{"label":"split_canvas_w","value":"1356.0"},{"label":"split_canvas_h","value":"1673.6"}],"created":"2026-10-18T10:05:17Z","modified":"2026-10-18T10:05:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"319.2,944.3 282.0,557.4 18.6,565.2 19.2,944.8 319.2,944.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,543.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.88628948463835,45.522502308290306]}},{"type":"Feature","properties":{"resourceCoords":[339.0,543.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.88539757056945,45.5225012639277]}},{"type":"Feature","properties":{"resourceCoords":[339.0,961.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.88539941130487,45.521728206766184]}},{"type":"Feature","properties":{"resourceCoords":[0.0,961.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.88629132537378,45.52172925112879]}},{"type":"Feature","properties":{"resourceCoords":[41.0,926.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8861833,45.5217937]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bay City, Oregon | 1928 | sanborn07326_003 p4 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.53"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4633.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3018.4"}],"created":"2026-10-18T10:05:17Z","modified":"2026-10-18T10:05:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"45.6,1912.0 711.8,1912.0 1562.8,1896.3 1511.9,1631.7 1593.1,1477.5 1556.9,1205.6 108.5,1202.5 101.6,1158.4 89.9,1158.4 84.3,1158.4 61.0,1475.3 76.2,1475.2 45.6,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[65.0,1475.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8841389,45.5191554]}},{"type":"Feature","properties":{"resourceCoords":[1231.0,1475.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8810856,45.5191599]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bay City, Oregon | 1928 | sanborn07326_003 p4 [2]","metadata":[{"label":"streets","value":"5"},{"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":"6452.0"},{"label":"split_canvas_h","value":"4633.6"}],"created":"2026-10-18T10:05:17Z","modified":"2026-10-18T10:05:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"39.4,302.7 97.8,785.4 61.1,880.5 105.0,895.1 105.0,1078.0 207.3,1143.8 1612.0,1115.1 1550.2,1105.0 1579.7,669.6 1564.7,669.7 1587.3,354.2 1604.4,354.2 1552.9,25.1 540.6,10.3 541.0,36.5 512.2,37.6 378.9,146.1 373.8,138.8 1.0,247.2 1.0,287.3 39.4,302.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294bm:g4294bm_g073261928:07326_1928-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1210.0,673.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8850832,45.5191486]}},{"type":"Feature","properties":{"resourceCoords":[1210.0,22.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8850836,45.5203497]}}]}}]}