{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn06045_002.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Lockport, New-York | 1892 | key map | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804lm:g3804lm_g060451892:06045_1892-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lockport, New-York | 1892 | sanborn06045_002 p0","metadata":[{"label":"streets","value":"69"},{"label":"intersections","value":"172"}],"created":"2026-10-20T01:02:06Z","modified":"2026-10-20T01:02:06Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804lm:g3804lm_g060451892:06045_1892-0000/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804lm:g3804lm_g060451892:06045_1892-0000","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:g3804lm:g3804lm_g060451892:06045_1892-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[638.2,1162.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.6880096,43.1732938]}},{"type":"Feature","properties":{"resourceCoords":[315.1,1511.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.6968319,43.1668966]}}]}}]}