{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03538_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Sangerville, Maine | 1923 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"6"},{"label":"placed","value":"2"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef-snap 1, georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 45.16608,-69.35912 +/-153m); p1__2 (tier 4, 45.16608,-69.35912 +/-153m); p3__1 (tier 1, 45.16413,-69.35755 +/-101m); p3__2 (tier 1, 45.16363,-69.35741 +/-257m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734sm:g3734sm_g035381923:03538_1923-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sangerville, Maine | 1923 | sanborn03538_004 p1 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3332.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4320.0"}],"created":"2026-10-19T22:18:20Z","modified":"2026-10-19T22:18:20Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734sm:g3734sm_g035381923:03538_1923-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734sm:g3734sm_g035381923:03538_1923-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1411.7,894.0 1407.6,911.0 995.9,858.8 591.8,967.3 291.4,930.4 179.6,1160.2 53.4,1227.5 25.8,1681.8 130.0,1724.0 200.4,1865.5 854.1,1903.0 1186.8,1818.7 1501.5,1910.0 1597.7,1712.0 1612.0,1713.8 1612.0,1709.0 1612.0,1696.4 1503.9,1691.0 1439.8,1154.3 1411.7,894.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734sm:g3734sm_g035381923:03538_1923-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[876.0,1160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.36067026624991,45.1657079086739]}},{"type":"Feature","properties":{"resourceCoords":[876.0,1914.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.36013624991999,45.164297967230986]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734sm:g3734sm_g035381923:03538_1923-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Sangerville, Maine | 1923 | sanborn03538_004 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.42"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:18:20Z","modified":"2026-10-19T22:18:20Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734sm:g3734sm_g035381923:03538_1923-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734sm:g3734sm_g035381923:03538_1923-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"130.9,748.4 33.0,480.4 147.2,137.9 1111.6,249.3 1199.9,226.0 1202.8,196.7 1178.5,177.8 1337.7,113.0 1482.0,145.8 1466.2,373.4 1565.5,381.6 1611.7,464.4 1588.4,820.3 1521.5,1050.7 1397.5,1087.5 1320.2,1395.0 1398.2,1528.3 1527.1,1565.0 1509.8,1799.4 850.0,1873.1 311.6,1827.8 311.0,1810.3 201.6,1808.9 116.8,1269.2 78.7,1007.3 130.9,748.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734sm:g3734sm_g035381923:03538_1923-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[592.0,1814.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.357592,45.165185]}},{"type":"Feature","properties":{"resourceCoords":[592.0,1272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.357919,45.166197]}}]}}]}