{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00674_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Martinez, California | 1891 | 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":"8"},{"label":"placed","value":"7"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 4, georef-snap 2, georef-street 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 38.01648,-122.13586 +/-453m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Martinez, California | 1891 | sanborn00674_003 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.95"},{"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":"2026-10-19T00:54:14Z","modified":"2026-10-19T00:54:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1596.6,1129.6 1579.6,252.5 1481.6,58.5 1172.8,32.0 869.7,165.1 698.0,79.2 626.3,522.5 626.3,643.8 623.9,649.4 595.5,713.5 55.1,774.5 39.5,1832.0 98.4,1886.3 438.9,1912.0 439.4,1858.0 1532.5,1866.5 1565.0,1863.0 1558.2,1535.1 1572.2,1490.1 1612.0,1468.5 1544.9,1471.2 1590.8,1129.3 1596.6,1129.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[71.0,1114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.1418635,38.0167963]}},{"type":"Feature","properties":{"resourceCoords":[1565.0,1863.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.1379889,38.0173815]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Martinez, California | 1891 | sanborn00674_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:54:14Z","modified":"2026-10-19T00:54:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"151.2,1827.5 153.2,1858.8 524.9,1838.6 749.6,1834.7 944.0,1861.3 1382.4,1885.1 1393.5,1439.9 1395.7,1173.5 1411.2,768.8 1301.9,765.0 1529.9,407.1 1603.5,409.9 1558.9,188.8 1293.0,48.3 109.5,41.5 106.9,1.0 100.9,1.0 71.0,344.9 138.1,339.0 99.2,362.6 87.2,408.4 109.5,736.8 111.0,890.2 121.0,1146.7 139.5,1485.0 140.9,1514.9 147.4,1743.0 151.2,1827.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[647.0,742.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.13694392560276,38.01794212740753]}},{"type":"Feature","properties":{"resourceCoords":[515.0,1478.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.1362108324007,38.016682868417035]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Martinez, California | 1891 | sanborn00674_003 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.39"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:54:14Z","modified":"2026-10-19T00:54:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"367.6,25.4 728.1,51.2 1200.2,242.2 1299.6,163.3 1329.4,167.1 1381.2,205.9 1475.3,140.7 1563.6,215.9 1519.1,1168.7 1593.2,1685.5 1545.5,1821.7 1295.0,1878.3 1141.5,1817.5 948.9,1881.3 397.3,1893.1 64.9,1858.3 88.5,1600.3 92.9,1467.2 119.7,1025.2 131.3,760.6 161.1,359.0 52.6,351.4 291.9,3.8 364.9,9.2 367.6,25.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.1362464,38.0190648]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.1331934,38.0208671]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.13048009999999,38.018014599999994]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.1335331,38.0162123]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Martinez, California | 1891 | sanborn00674_003 p4 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"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":"2026-10-19T00:54:14Z","modified":"2026-10-19T00:54:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.9,78.6 69.4,79.7 80.2,1324.8 135.4,1420.8 462.7,1421.0 503.1,1851.6 457.6,1864.8 469.1,1889.1 815.2,1884.7 988.9,1888.8 1531.4,1880.4 1570.0,1882.7 1567.7,1133.3 1196.0,1139.7 1195.1,1108.5 1195.4,1024.0 1194.4,1024.0 1196.0,766.2 1190.0,427.8 1189.3,171.4 1193.4,18.2 1160.8,22.1 64.8,24.5 64.9,78.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[813.0,1133.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.13712888391744,38.015304393403405]}},{"type":"Feature","properties":{"resourceCoords":[433.0,43.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.1393854294178,38.01649777061532]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Martinez, California | 1891 | sanborn00674_003 p4 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.82"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4777.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1674.4"},{"label":"split_canvas_h","value":"4096.0"}],"created":"2026-10-19T00:54:14Z","modified":"2026-10-19T00:54:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1231.3,168.0 1211.5,905.4 1236.2,909.9 1535.8,915.3 1586.3,647.2 1583.3,544.4 1612.0,489.5 1612.0,211.8 1451.9,178.8 1231.3,168.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1576.0,916.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.1339461,38.0154495]}},{"type":"Feature","properties":{"resourceCoords":[1231.4,168.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.1357076,38.0161447]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Martinez, California | 1891 | sanborn00674_003 p4 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.56"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5702.0"},{"label":"split_canvas_w","value":"1840.4"},{"label":"split_canvas_h","value":"1950.0"}],"created":"2026-10-19T00:54:14Z","modified":"2026-10-19T00:54:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3.2,1484.7 28.2,1752.7 5.5,1808.3 17.9,1907.3 63.7,1859.0 447.0,1874.6 453.8,1626.2 449.9,1498.6 30.9,1487.7 3.2,1484.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0004__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[59.0,1488.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.134809,38.0165821]}},{"type":"Feature","properties":{"resourceCoords":[447.1,1850.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.1335207,38.0164063]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Martinez, California | 1891 | sanborn00674_003 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:54:14Z","modified":"2026-10-19T00:54:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"432.8,65.8 605.8,69.3 1146.0,59.4 1184.5,61.5 1209.7,65.2 1513.2,60.6 1570.8,175.2 1595.5,1413.7 1490.5,1760.2 1348.9,1889.4 353.7,1878.7 50.8,1824.3 33.8,139.7 52.4,54.2 88.1,71.2 432.8,65.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364mm:g4364mm_g006741891:00674_1891-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1186.0,1175.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.1330665,38.0133754]}},{"type":"Feature","properties":{"resourceCoords":[437.0,1553.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.133951,38.0119768]}}]}}]}