{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn00101_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Troy, Alabama | 1892 | 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"},{"label":"pages","value":"13"},{"label":"placed","value":"2"},{"label":"unplaced","value":"11"},{"label":"fit sources","value":"georef-snap 1, georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 12 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 31.80729,-85.97163 +/-176m); p1__2 (tier 4, 31.80729,-85.97163 +/-176m); p1__3 (tier 4, 31.80729,-85.97163 +/-176m); p1__4 (tier 4, 31.80729,-85.97163 +/-176m); p3__2 (tier 4, 31.80729,-85.97163 +/-176m); p3__3 (tier 4, 31.80729,-85.97163 +/-176m); p4__1 (tier 4, 31.80729,-85.97163 +/-176m); p4__2 (tier 4, 31.80729,-85.97163 +/-176m); p4__3 (tier 4, 31.80729,-85.97163 +/-176m); p4__4 (tier 4, 31.80729,-85.97163 +/-176m); p4__5 (tier 4, 31.80729,-85.97163 +/-176m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974tm:g3974tm_g001011892:00101_1892-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Troy, Alabama | 1892 | sanborn00101_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T21:24:33Z","modified":"2026-09-21T21:24:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974tm:g3974tm_g001011892:00101_1892-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974tm:g3974tm_g001011892:00101_1892-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1613.0,0.0 1613.0,1766.8 871.9,1765.5 878.3,1538.0 -0.0,1534.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974tm:g3974tm_g001011892:00101_1892-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.97340976661059,31.810817101995053]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.9696371284683,31.810744695972073]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.96973746961854,31.80691554953541]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.97351010776082,31.80698795555839]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974tm:g3974tm_g001011892:00101_1892-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Troy, Alabama | 1892 | sanborn00101_003 p3 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-21T21:24:33Z","modified":"2026-09-21T21:24:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974tm:g3974tm_g001011892:00101_1892-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974tm:g3974tm_g001011892:00101_1892-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 -0.0,1910.1 731.1,1911.4 744.8,1302.0 881.7,1139.7 1239.1,1137.9 1613.0,1136.3 1613.0,0.0 1581.7,0.0 1582.8,216.9 1199.3,223.3 874.4,219.0 879.5,0.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974tm:g3974tm_g001011892:00101_1892-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[874.0,533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.9714851,31.806591]}},{"type":"Feature","properties":{"resourceCoords":[1201.0,533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.970685,31.8065725]}}]}}]}