{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn06740_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Jackson, Ohio | 1897 | key map | 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"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084jm:g4084jm_g067401897:06740_1897-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Jackson, Ohio | 1897 | sanborn06740_003 p1","metadata":[{"label":"streets","value":"40"},{"label":"intersections","value":"64"}],"created":"2026-10-18T20:48:11Z","modified":"2026-10-18T20:48:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084jm:g4084jm_g067401897:06740_1897-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084jm:g4084jm_g067401897:06740_1897-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1927.0 0.0,0.0 1628.0,0.0 1628.0,1927.0 0.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084jm:g4084jm_g067401897:06740_1897-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[673.7,846.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.63696,39.060027]}},{"type":"Feature","properties":{"resourceCoords":[356.9,1270.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-82.6428246,39.0546234]}}]}}]}