{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04131_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Northville, Michigan | 1893 | 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"},{"label":"pages","value":"7"},{"label":"placed","value":"2"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 42.43155,-83.48334 +/-152m); p1__2 (tier 4, 42.43155,-83.48334 +/-152m); p1__3 (tier 4, 42.43155,-83.48334 +/-152m); p2__2 (tier 4, 42.43155,-83.48334 +/-152m); p3__1 (tier 2, 42.43104,-83.48329 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114nm:g041311893:04131_1893-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Northville, Michigan | 1893 | sanborn04131_001 p2 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.69"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-20T01:41:43Z","modified":"2026-10-20T01:41:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114nm:g041311893:04131_1893-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114nm:g041311893:04131_1893-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"97.0,1671.4 109.3,1862.3 321.0,1895.1 605.5,1852.7 655.2,1790.4 1218.0,1867.8 1577.2,1816.9 1594.7,1611.3 1523.4,1405.7 1581.1,900.4 1497.4,841.5 1512.3,665.3 1180.7,652.0 1112.9,579.6 1063.5,464.5 1075.8,58.9 803.5,43.2 664.5,112.7 619.1,212.4 439.8,234.1 169.6,150.3 118.3,810.2 101.9,1116.9 97.0,1671.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114nm:g041311893:04131_1893-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1258.0,1658.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.480255,42.4302699]}},{"type":"Feature","properties":{"resourceCoords":[1258.0,1129.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.480366,42.431235]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114nm:g041311893:04131_1893-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Northville, Michigan | 1893 | sanborn04131_001 p3 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.80"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-20T01:41:43Z","modified":"2026-10-20T01:41:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114nm:g041311893:04131_1893-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114nm:g041311893:04131_1893-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1583.3,1877.1 1578.0,1322.1 1588.8,1015.0 1627.0,370.9 1627.0,353.5 1602.7,346.4 1524.6,75.2 182.2,37.8 113.1,77.5 71.0,266.9 64.8,317.4 20.4,304.4 2.6,1407.6 46.7,1410.6 84.0,1405.7 179.5,1412.0 228.5,1412.0 228.6,1415.2 231.1,1415.4 290.6,1855.3 347.5,1888.7 1582.4,1874.7 1583.3,1877.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114nm:g041311893:04131_1893-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[577.0,732.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.485799,42.432034]}},{"type":"Feature","properties":{"resourceCoords":[186.0,1337.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.4866667,42.4308821]}}]}}]}