{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:NN6FOZWSHN7BGXCSISJLEEH7DB","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"7295427b787da6872ff923ab05306a9de74ec8be391512f961c3cc9b60f2366a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-10-13T13:26:52Z","title_canon_sha256":"0d4e618f2b973aa4ba8b0115c63634dccc232a942a07d65732fcb33b6714c1f3"},"schema_version":"1.0","source":{"id":"1910.05748","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.05748","created_at":"2026-07-05T01:14:29Z"},{"alias_kind":"arxiv_version","alias_value":"1910.05748v2","created_at":"2026-07-05T01:14:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.05748","created_at":"2026-07-05T01:14:29Z"},{"alias_kind":"pith_short_12","alias_value":"NN6FOZWSHN7B","created_at":"2026-07-05T01:14:29Z"},{"alias_kind":"pith_short_16","alias_value":"NN6FOZWSHN7BGXCS","created_at":"2026-07-05T01:14:29Z"},{"alias_kind":"pith_short_8","alias_value":"NN6FOZWS","created_at":"2026-07-05T01:14:29Z"}],"graph_snapshots":[{"event_id":"sha256:a8de5f1d104b39a9f408f8b358b84ffc1451f3b12721bc1fec9bf918ef621653","target":"graph","created_at":"2026-07-05T01:14:29Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1910.05748/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report a B-mode power spectrum measurement from the cosmic microwave background (CMB) polarization anisotropy observations made using the SPTpol instrument on the South Pole Telescope. This work uses 500 deg$^2$ of SPTpol data, a five-fold increase over the last SPTpol B-mode release. As a result, the bandpower uncertainties have been reduced by more than a factor of two, and the measurement extends to lower multipoles: $52 < \\ell < 2301$. Data from both 95 and 150 GHz are used, allowing for three cross-spectra: 95 GHz x 95 GHz, 95 GHz x 150 GHz, and 150 GHz x 150 GHz. B-mode power is detec","authors_text":"A. A. Stark, A. Gilbert, A. J. Anderson, A. Lowitz, A. Nadolski, A. N. Bender, A. T. Crites, A. T. Lee, B. A. Benson, B. R. Saliwanchik, C. Corbett Moran, C. L. Chang, C. L. Reichardt, C. Pryke, C. Sievers, C. Tucker, D. Li, E. M. George, F. Bianchini, G. C. Hilton, G. Noble, G. P. Holder, G. Smecher, G. Wang, H. C. Chiang, J. A. Beall, J. D. Hrubes, J. D. Vieira, J. E. Austermann, J. E. Carlstrom, J. E. Ruhl, J. Gallicchio, J. Hubmayr, J. J. McMahon, J. Montgomery, J. P. Nibarger, J. S. Avva, J.T. Sayre, J. W. Henning, K. D. Irwin, K. K. Schaffer, K. Vanderlinde, L. E. Bleem, L. Knox, L. M. Mocanu, M. A. Dobbs, N. Gupta, N. Harrington, N. Huang, N. W. Halverson, N. Whitehorn, P. A. R. Ade, R. Citron, S. Padin, S. Patil, S. S. Meyer, T. de Haan, T. M. Crawford, T. Natoli, T. Veach, V. Novosad, V. Yefremenko, W. Everett, W. L. Holzapfel, W. L. K. Wu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-10-13T13:26:52Z","title":"Measurements of B-mode Polarization of the Cosmic Microwave Background from 500 Square Degrees of SPTpol Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.05748","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:70e6e36a757a6465017d81fc2815d32904c5851628b129188048d880a9fdac63","target":"record","created_at":"2026-07-05T01:14:29Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"7295427b787da6872ff923ab05306a9de74ec8be391512f961c3cc9b60f2366a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-10-13T13:26:52Z","title_canon_sha256":"0d4e618f2b973aa4ba8b0115c63634dccc232a942a07d65732fcb33b6714c1f3"},"schema_version":"1.0","source":{"id":"1910.05748","kind":"arxiv","version":2}},"canonical_sha256":"6b7c5766d23b7e135c524492b210ff185d073d31c27e54dde64c56498cd3e19f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b7c5766d23b7e135c524492b210ff185d073d31c27e54dde64c56498cd3e19f","first_computed_at":"2026-07-05T01:14:29.903825Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:14:29.903825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g7Sed1gIclWGtjTvtsBOt79tkFDG5jqkn6PKFnhtVdDX8Qd19gB93WfqvfUJ92cdvVnoAqg8f0owEF//BPDNDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:14:29.904370Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.05748","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70e6e36a757a6465017d81fc2815d32904c5851628b129188048d880a9fdac63","sha256:a8de5f1d104b39a9f408f8b358b84ffc1451f3b12721bc1fec9bf918ef621653"],"state_sha256":"beae38d1a8e57ce7c4a9dfdd830275cdfc15990628befa63ab006ddd8296f171"}