{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00650_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Long Beach, California | 1888 | 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 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 33.76926,-118.19302 +/-100m); p1__2 (tier 4, 33.76926,-118.19302 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g006501888:00650_1888-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Long Beach, California | 1888 | sanborn00650_001 p1 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.07"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4180.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2272.0"},{"label":"split_canvas_h","value":"2208.4"}],"created":"2026-10-18T05:34:38Z","modified":"2026-10-18T05:34:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g006501888:00650_1888-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g006501888:00650_1888-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1611.1,550.1 1596.9,15.0 1594.9,4.7 1079.1,1.0 1051.0,1.0 1096.5,69.6 1055.5,123.8 1047.0,546.6 1611.1,550.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g006501888:00650_1888-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1548.0,321.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.1923973,33.7693122]}},{"type":"Feature","properties":{"resourceCoords":[1087.0,179.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.193745,33.7693125]}}]}}]}