{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08303_005.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dayton, Tennessee | 1907 | key map | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964dm:g3964dm_g083031907:08303_1907-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dayton, Tennessee | 1907 | sanborn08303_005 p1 [2]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"20"},{"label":"split_canvas_x","value":"3823.3"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3055.1"},{"label":"split_canvas_h","value":"6484.2"}],"created":"2026-09-22T20:29:04Z","modified":"2026-09-22T20:29:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964dm:g3964dm_g083031907:08303_1907-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964dm:g3964dm_g083031907:08303_1907-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"968.2,0.0 955.8,1619.8 955.8,1620.3 1613,1621.0 1613,-0.0 968.2,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964dm:g3964dm_g083031907:08303_1907-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1246.2,287.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0129557,35.4957186]}},{"type":"Feature","properties":{"resourceCoords":[1476.7,232.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0088614,35.4945203]}}]}}]}