{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn00234_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dermott, Arkansas | 1915 | 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:gmd400m:g4004m:g4004dm:g002341915:00234_1915-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dermott, Arkansas | 1915 | sanborn00234_003 p1 [2]","metadata":[{"label":"streets","value":"32"},{"label":"intersections","value":"118"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6878.4"},{"label":"split_canvas_h","value":"4141.7"}],"created":"2026-09-22T19:06:34Z","modified":"2026-09-22T19:06:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004dm:g002341915:00234_1915-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004dm:g002341915:00234_1915-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1035.4 1221.4,1033.8 1221.1,933.1 1613,933.4 1613,0.0 664.0,0.0 -0.0,-0.0 0.0,1035.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd400m:g4004m:g4004dm:g002341915:00234_1915-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[588.7,778.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4350443,33.5201614]}},{"type":"Feature","properties":{"resourceCoords":[744.1,345.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4301839,33.5316369]}}]}}]}