{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08503_005.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dublin, Texas | 1912 | 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:gmd403m:g4034m:g4034dm:g4034dm_g085031912:08503_1912-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dublin, Texas | 1912 | sanborn08503_005 p1 [2]","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"48"},{"label":"split_canvas_x","value":"4691.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2186.7"},{"label":"split_canvas_h","value":"8074.1"}],"created":"2026-09-23T04:55:19Z","modified":"2026-09-23T04:55:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g085031912:08503_1912-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g085031912:08503_1912-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613,1913 1613,0.0 1449.9,0.0 1174.6,0.0 1173.0,1005.3 1173.0,1012.4 1259.8,1013.2 1268.3,1913 1613,1913\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g085031912:08503_1912-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1532.6,770.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.338925,32.086176]}},{"type":"Feature","properties":{"resourceCoords":[1267.4,485.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.341836,32.092031]}}]}}]}