{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn00361_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Walnut Ridge, Arkansas | 1914 | 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://tile.loc.gov/image-services/iiif/service:gmd:gmd400m:g4004m:g4004wm:g003611914:00361_1914-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Walnut Ridge, Arkansas | 1914 | sanborn00361_004 p1 [1]","metadata":[{"label":"streets","value":"25"},{"label":"intersections","value":"99"},{"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":"6198.7"}],"created":"2026-09-23T03:14:03Z","modified":"2026-09-23T03:14:03Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd400m:g4004m:g4004wm:g003611914:00361_1914-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd400m:g4004m:g4004wm:g003611914:00361_1914-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,-0.0 0.0,0.0 0.0,4001.3 4908.3,3999.3 4917.4,6159.5 4259.9,6185.4 6639.7,6198.7 6878.4,6198.7 6878.4,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd400m:g4004m:g4004wm:g003611914:00361_1914-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1727.6,2238.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.959569,36.0671018]}},{"type":"Feature","properties":{"resourceCoords":[1759.6,588.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.9515132,36.0728067]}}]}}]}