{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn06586_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ashtabula, Ohio | 1898 | 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:gmd408m:g4084m:g4084am:g4084am_g065861898:06586_1898-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ashtabula, Ohio | 1898 | sanborn06586_004 p1","metadata":[{"label":"streets","value":"29"},{"label":"intersections","value":"19"}],"created":"2026-09-23T00:58:52Z","modified":"2026-09-23T00:58:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084am:g4084am_g065861898:06586_1898-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084am:g4084am_g065861898:06586_1898-0001","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:g4084am:g4084am_g065861898:06586_1898-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[332.1,1097.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.7982455,41.8626844]}},{"type":"Feature","properties":{"resourceCoords":[126.5,1217.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.804426,41.859923]}}]}}]}