{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00749_005.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Pasadena, California | 1894 | key map | 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"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364pm:g4364pm_g007491894:00749_1894-0000__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Pasadena, California | 1894 | sanborn00749_005 p0 [1]","metadata":[{"label":"streets","value":"89"},{"label":"intersections","value":"274"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6878.4"},{"label":"split_canvas_h","value":"8074.1"}],"created":"2026-10-19T07:41:37Z","modified":"2026-10-19T07:41:37Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364pm:g4364pm_g007491894:00749_1894-0000__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364pm:g4364pm_g007491894:00749_1894-0000","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1652.0 0.0,1913 1613,1913 1613,536.1 1613,507.4 1613,478.8 1613,0.0 1209.2,250.1 1137.8,280.9 1139.8,0.0 1087.4,0.0 0.0,0.0 0.0,1652.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364pm:g4364pm_g007491894:00749_1894-0000__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[504.4,1792.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.149019,34.1154835]}},{"type":"Feature","properties":{"resourceCoords":[724.6,354.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.1414967,34.1541941]}}]}}]}