{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03531_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Rockland, Maine | 1885 | 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":"10"},{"label":"placed","value":"6"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef-snap 3, snap:1 1, georef 1, snap:0 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 44.10211,-69.10869 +/-265m); p1__2 (tier 4, 44.10447,-69.10966 +/-511m); p2__2 (tier 1, 44.10496,-69.10472 +/-111m); p6__1 (tier 4, 44.10447,-69.10966 +/-511m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Maine | 1885 | sanborn03531_001 p1 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.18"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2362.8"},{"label":"split_canvas_y","value":"4867.2"},{"label":"split_canvas_w","value":"4089.2"},{"label":"split_canvas_h","value":"2784.8"}],"created":"2026-10-19T12:27:22Z","modified":"2026-10-19T12:27:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1161.2,1222.2 877.2,1234.0 756.0,1348.3 725.0,1911.0 1468.2,1905.3 1568.6,1744.7 1585.0,1521.2 1612.0,1532.0 1612.0,1470.8 1612.0,1439.5 1225.2,1377.2 1252.4,1287.8 1161.2,1222.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[590.7,1216.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-69.11221252365179,44.100567245811135]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1216.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-69.10972473069376,44.10125870780528]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-69.10907329157803,44.100032898242645]}},{"type":"Feature","properties":{"resourceCoords":[590.7,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-69.11156108453606,44.0993414362485]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Maine | 1885 | sanborn03531_001 p2 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.11"},{"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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T12:27:22Z","modified":"2026-10-19T12:27:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1377.7,549.1 1333.0,78.6 883.6,43.9 146.7,323.4 36.2,1568.1 279.6,1802.7 1529.5,1829.6 1326.3,1571.7 1056.8,1567.0 1053.9,1567.0 1053.9,1566.9 1044.0,1547.5 1133.2,1280.5 1239.9,895.2 1243.2,892.9 1268.9,874.4 1377.7,549.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1185.0,368.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.1039505715796,44.10569028461032]}},{"type":"Feature","properties":{"resourceCoords":[534.0,1539.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.10432584664593,44.10462278917308]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Maine | 1885 | sanborn03531_001 p3","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:27:22Z","modified":"2026-10-19T12:27:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"171.9,1817.9 169.5,1722.7 61.0,1688.6 81.8,1680.7 66.0,432.1 51.9,347.7 73.3,345.6 64.5,267.1 249.2,252.5 780.3,215.2 783.5,103.0 1263.9,104.8 1359.1,103.2 1352.2,51.4 1506.4,53.0 1589.8,144.4 1612.0,1237.4 1612.0,1248.5 1521.0,1805.0 1065.5,1871.7 592.6,1843.1 563.1,1753.7 171.9,1817.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[777.0,501.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.109116,44.1031998]}},{"type":"Feature","properties":{"resourceCoords":[777.0,1420.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.1090076,44.1015009]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Maine | 1885 | sanborn03531_001 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:27:22Z","modified":"2026-10-19T12:27:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1753.9 1612.0,1732.8 1562.8,1725.7 1578.8,786.7 1525.5,269.4 1566.3,247.3 1480.2,194.9 1520.1,1.0 1432.8,1.0 1421.9,110.8 575.6,111.6 193.5,27.5 73.7,79.3 96.7,1209.3 41.1,1758.5 129.2,1845.8 197.7,1848.5 292.4,1833.5 293.0,1852.2 314.3,1853.0 316.0,1774.5 499.8,1784.5 1027.5,1818.2 1045.4,1708.2 1518.0,1773.7 1612.0,1784.7 1612.0,1753.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[637.0,1522.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.11027537961742,44.10414156122777]}},{"type":"Feature","properties":{"resourceCoords":[1144.0,393.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.1095042677149,44.106380142218114]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Maine | 1885 | sanborn03531_001 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.62"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:27:22Z","modified":"2026-10-19T12:27:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.6,969.5 138.1,732.7 55.5,262.1 129.6,115.0 313.6,38.2 1094.5,43.4 1215.0,223.2 1360.9,209.0 1369.5,524.8 1482.0,697.9 1510.9,1298.9 1491.3,1779.4 1118.6,1808.2 1126.0,1908.9 1058.0,1912.0 1035.7,1912.0 1013.6,1789.0 748.7,1866.2 61.9,1844.5 50.6,969.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[582.0,855.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.10985193738246,44.109277114750746]}},{"type":"Feature","properties":{"resourceCoords":[461.0,321.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-69.11002839198468,44.11027697233564]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Rockland, Maine | 1885 | sanborn03531_001 p6 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.28"},{"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":"6452.0"},{"label":"split_canvas_h","value":"3720.0"}],"created":"2026-10-19T12:27:22Z","modified":"2026-10-19T12:27:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1435.9,699.6 1431.2,612.4 1585.6,503.0 1548.7,237.2 1370.7,71.4 898.3,122.5 590.9,33.3 229.1,83.6 57.4,334.6 98.1,680.5 142.8,842.7 289.5,837.0 349.1,894.6 848.7,773.9 1348.8,763.0 1435.9,699.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd373m:g3734m:g3734rm:g3734rm_g035311885:03531_1885-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-69.11663685347285,44.105786309708826]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-69.11252886793629,44.10537343748919]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,930.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-69.11285805868103,44.103660686946334]}},{"type":"Feature","properties":{"resourceCoords":[0.0,930.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-69.11696604421759,44.10407355916597]}}]}}]}