{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00484_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Corte Madera, California | 1909 | 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":"7"},{"label":"placed","value":"2"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 37.92583,-122.52885 +/-166m); p1__2 (tier 4, 37.92583,-122.52885 +/-166m); p1__3 (tier 4, 37.92583,-122.52885 +/-166m); p2__1 (tier 1, 37.92652,-122.52809 +/-202m); p2__2 (tier 1, 37.92921,-122.52898 +/-173m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004841909:00484_1909-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Corte Madera, California | 1909 | sanborn00484_001 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:12:34Z","modified":"2026-10-18T11:12:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004841909:00484_1909-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004841909:00484_1909-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1031.0,1893.1 1568.5,1865.5 1594.8,814.5 1571.8,562.9 1400.9,356.2 1451.8,60.0 615.4,33.0 53.1,101.5 28.2,1574.3 1.0,1582.8 1.0,1631.0 73.3,1745.3 136.1,1745.5 404.7,1804.3 390.7,1782.6 613.4,1814.0 699.7,1848.7 812.1,1852.5 1030.5,1869.0 1031.0,1893.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004841909:00484_1909-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[289.0,918.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.52939499889244,37.927303180507245]}},{"type":"Feature","properties":{"resourceCoords":[707.0,114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.52842320166066,37.928766205056]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004841909:00484_1909-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Corte Madera, California | 1909 | sanborn00484_001 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:12:34Z","modified":"2026-10-18T11:12:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004841909:00484_1909-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004841909:00484_1909-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,370.8 1534.4,373.1 1469.3,1077.7 1576.8,1347.0 1575.0,1859.6 100.8,1885.1 20.9,1750.0 79.2,1008.1 34.1,182.8 73.0,101.7 237.0,134.4 576.8,37.7 575.8,84.3 647.4,202.1 710.8,203.7 981.0,268.4 967.3,246.2 1191.6,282.5 1278.2,319.1 1391.7,325.4 1612.0,346.6 1612.0,366.8 1612.0,370.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364cm:g4364cm_g004841909:00484_1909-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.53138768660753,37.92614236654286]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.52770038110528,37.92619497066174]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.52762184399535,37.92272108786801]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.5313091494976,37.922668483749135]}}]}}]}