{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01122_002.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"East Hartford, Connecticut | 1903 | 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:gmd378m:g3784m:g3784em:g3784em_g011221903:01122_1903-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"East Hartford, Connecticut | 1903 | sanborn01122_002 p1 [2]","metadata":[{"label":"streets","value":"18"},{"label":"intersections","value":"24"},{"label":"split_canvas_x","value":"3055.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3822.8"},{"label":"split_canvas_h","value":"5473.7"}],"created":"2026-09-23T14:19:20Z","modified":"2026-09-23T14:19:20Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784em:g3784em_g011221903:01122_1903-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784em:g3784em_g011221903:01122_1903-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,5473.7 6878.4,0.0 3055.6,0.0 3067.8,5045.2 6878.2,5473.7 6878.4,5473.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784em:g3784em_g011221903:01122_1903-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3825.6,1620.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6423232,41.7716521]}},{"type":"Feature","properties":{"resourceCoords":[3948.3,1102.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6394886,41.7755529]}}]}}]}