{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn05750_001.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Auburn, New-York | 1886 | 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:gmd380m:g3804m:g3804am:g3804am_g057501886:05750_1886-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Auburn, New-York | 1886 | sanborn05750_001 p1","metadata":[{"label":"streets","value":"76"},{"label":"intersections","value":"122"}],"created":"2026-09-23T07:38:01Z","modified":"2026-09-23T07:38:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804am:g3804am_g057501886:05750_1886-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804am:g3804am_g057501886:05750_1886-0001","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:gmd380m:g3804m:g3804am:g3804am_g057501886:05750_1886-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[772.5,1052.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.572427,42.931336]}},{"type":"Feature","properties":{"resourceCoords":[614.5,839.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.578115,42.935933]}}]}}]}