{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01132_006.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Hartford, Connecticut | 1922 | key map | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132192201:01132_01_1922-0000__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1922 | sanborn01132_006 p0 [1]","metadata":[{"label":"streets","value":"118"},{"label":"intersections","value":"222"},{"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":"8074.1"}],"created":"2026-09-21T10:47:55Z","modified":"2026-09-21T10:47:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132192201:01132_01_1922-0000__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132192201:01132_01_1922-0000","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1739.8 -0.0,1913 1613,1913 1613,0.0 592.3,0.0 592.1,540.2 439.2,649.9 0.0,655.5 -0.0,1691.8 -0.0,1739.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132192201:01132_01_1922-0000__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[847.0,502.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6794557,41.7908484]}},{"type":"Feature","properties":{"resourceCoords":[674.2,1105.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6838869,41.7738958]}}]}}]}