{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn07242_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Sapulpa, Oklahoma | 1909 | key map | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024sm:g4024sm_g072421909:07242_1909-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sapulpa, Oklahoma | 1909 | sanborn07242_004 p1 [2]","metadata":[{"label":"streets","value":"22"},{"label":"intersections","value":"115"},{"label":"split_canvas_x","value":"2183.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4694.7"},{"label":"split_canvas_h","value":"8074.1"}],"created":"2026-09-23T21:03:29Z","modified":"2026-09-23T21:03:29Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024sm:g4024sm_g072421909:07242_1909-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024sm:g4024sm_g072421909:07242_1909-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1232.4,1913 1232.4,989.0 1613,988.8 1613,0.0 553.5,0.0 546.0,710.6 546.0,711.2 548.0,717.0 1222.9,715.5 1220.9,1913 1232.4,1913\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024sm:g4024sm_g072421909:07242_1909-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[910.4,406.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.111387,35.996456]}},{"type":"Feature","properties":{"resourceCoords":[713.2,343.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.1155442,35.9974382]}}]}}]}