{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05881_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Deposit, New-York | 1904 | 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:gmd380m:g3804m:g3804dm:g3804dm_g058811904:05881_1904-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Deposit, New-York | 1904 | sanborn05881_004 p1 [1]","metadata":[{"label":"streets","value":"21"},{"label":"intersections","value":"30"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6878.4"},{"label":"split_canvas_h","value":"4482.3"}],"created":"2026-09-23T19:28:35Z","modified":"2026-09-23T19:28:35Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd380m:g3804m:g3804dm:g3804dm_g058811904:05881_1904-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd380m:g3804m:g3804dm:g3804dm_g058811904:05881_1904-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,-0.0 -0.0,0.0 0.0,4482.3 4185.2,4469.8 4185.2,4469.5 6642.0,4462.1 6878.4,4462.1 6878.4,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd380m:g3804m:g3804dm:g3804dm_g058811904:05881_1904-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1574.0,3199.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.428734,42.061928]}},{"type":"Feature","properties":{"resourceCoords":[1806.5,2385.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.423289,42.062434]}}]}}]}