{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01132_002.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Hartford, Connecticut | 1900 | 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://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132190001:01132_01_1900-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1900 | sanborn01132_002 p0","metadata":[{"label":"streets","value":"99"},{"label":"intersections","value":"174"}],"created":"2026-09-21T22:04:07Z","modified":"2026-09-21T22:04:07Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132190001:01132_01_1900-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132190001:01132_01_1900-0000/info.json","type":"ImageService2","height":7916,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,7916.0 0.0,0.0 6672.0,0.0 6672.0,2180.0 6672.0,5854.5 6672.0,6169.5 6672.0,6530.5 6672.0,7916.0 0.0,7916.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132190001:01132_01_1900-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3369.5,3262.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6837173,41.7773123]}},{"type":"Feature","properties":{"resourceCoords":[841.1,6024.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6970634,41.7639894]}}]}}]}