{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00169_007.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Phoenix, Arizona | 1946 | key map | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334pm:g001691946:00169_1946-0000A/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Phoenix, Arizona | 1946 | sanborn00169_007 p0A","metadata":[{"label":"streets","value":"114"},{"label":"intersections","value":"1233"}],"created":"2026-10-18T01:57:02Z","modified":"2026-10-18T01:57:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334pm:g001691946:00169_1946-0000A/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334pm:g001691946:00169_1946-0000A","type":"ImageService3","width":1622,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1949.0 0.0,0.0 1622.0,0.0 1622.0,1949.0 0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334pm:g001691946:00169_1946-0000A/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[432.4,1399.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0923743,33.4627225]}},{"type":"Feature","properties":{"resourceCoords":[1374.4,472.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.058674,33.4340884]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334pm:g001691946:00169_1946-0000B/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Phoenix, Arizona | 1946 | sanborn00169_007 p0B","metadata":[{"label":"streets","value":"84"},{"label":"intersections","value":"615"}],"created":"2026-10-18T01:57:02Z","modified":"2026-10-18T01:57:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334pm:g001691946:00169_1946-0000B/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334pm:g001691946:00169_1946-0000B","type":"ImageService3","width":1594,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1949.0 0.0,0.0 1594.0,0.0 1594.0,1949.0 0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334pm:g001691946:00169_1946-0000B/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1311.2,853.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0302385,33.5093342]}},{"type":"Feature","properties":{"resourceCoords":[1230.0,1418.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.036799,33.4712058]}}]}}]}