{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00858_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Sonoma, California | 1897 | 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":"3"},{"label":"placed","value":"1"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p2__1 (tier 1, 38.29256,-122.46566 +/-125m); p2__2 (tier 1, 38.29264,-122.45930 +/-250m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364sm:g4364sm_g008581897:00858_1897-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sonoma, California | 1897 | sanborn00858_003 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.53"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:45:20Z","modified":"2026-10-18T13:45:20Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364sm:g4364sm_g008581897:00858_1897-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364sm:g4364sm_g008581897:00858_1897-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"41.0,34.6 886.1,17.7 1184.6,90.7 1322.2,25.7 1508.2,86.1 1583.7,244.2 1602.3,1442.9 1520.1,1875.4 65.5,1858.9 41.0,34.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364sm:g4364sm_g008581897:00858_1897-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[521.0,1280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.45679711332382,38.291825660962644]}},{"type":"Feature","properties":{"resourceCoords":[521.0,297.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.45645145164609,38.29362470742069]}}]}}]}