{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03572_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Annapolis, Maryland | 1897 | 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:gmd384m:g3844m:g3844am:g3844am_g035721897:03572_1897-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Annapolis, Maryland | 1897 | sanborn03572_003 p1","metadata":[{"label":"streets","value":"33"},{"label":"intersections","value":"42"}],"created":"2026-09-23T17:00:37Z","modified":"2026-09-23T17:00:37Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g3844am_g035721897:03572_1897-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g3844am_g035721897:03572_1897-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 0.0,0.0 1613.0,0.0 1613.0,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g3844am_g035721897:03572_1897-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[384.9,283.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.4966974,38.9796373]}},{"type":"Feature","properties":{"resourceCoords":[690.7,676.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.4853963,38.9793332]}}]}}]}