{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn06627_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Canal Dover, Ohio | 1899 | key map | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g066271899:06627_1899-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Canal Dover, Ohio | 1899 | sanborn06627_003 p1 [1]","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"49"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6938.1"},{"label":"split_canvas_h","value":"8129.9"}],"created":"2026-09-21T21:21:09Z","modified":"2026-09-21T21:21:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g066271899:06627_1899-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g066271899:06627_1899-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628,0.0 736.0,0.0 766.5,1106.1 0.0,1106.1 0.0,1927 1628,1927 1628,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g066271899:06627_1899-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1119.6,432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.4777655,40.5214847]}},{"type":"Feature","properties":{"resourceCoords":[1198.5,275.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.4788212,40.5243362]}}]}}]}