{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn08099_009.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Providence, Rhode-Island | 1921 | 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:gmd377m:g3774m:g3774pm:g3774pm_g08099192103:08099_03_1921-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Providence, Rhode-Island | 1921 | sanborn08099_009 p0","metadata":[{"label":"streets","value":"359"},{"label":"intersections","value":"450"}],"created":"2026-09-21T11:07:56Z","modified":"2026-09-21T11:07:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd377m:g3774m:g3774pm:g3774pm_g08099192103:08099_03_1921-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd377m:g3774m:g3774pm:g3774pm_g08099192103:08099_03_1921-0000/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,0.0 6452.0,0.0 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd377m:g3774m:g3774pm:g3774pm_g08099192103:08099_03_1921-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4635.4,5859.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.42646,41.838249]}},{"type":"Feature","properties":{"resourceCoords":[2497.8,5175.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.4577583,41.8458339]}}]}}]}