{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ANOC7VSWCB35JQ4DPZ3TN3L4TT","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":"00ad8861cf3e6b2338597c540d5083731c779b7102e86faf903caa12f8a4449d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-22T19:34:08Z","title_canon_sha256":"aaa977a6f624eabac6102034bd314998d33391e82bd6091bfa81440bad468f6f"},"schema_version":"1.0","source":{"id":"1307.5830","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5830","created_at":"2026-05-18T03:08:36Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5830v2","created_at":"2026-05-18T03:08:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5830","created_at":"2026-05-18T03:08:36Z"},{"alias_kind":"pith_short_12","alias_value":"ANOC7VSWCB35","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"ANOC7VSWCB35JQ4D","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"ANOC7VSW","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:27cf17fff61b78fcd2f9cfb2fee7159e0de5748255f9f4aa77922887b283677a","target":"graph","created_at":"2026-05-18T03:08:36Z","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"},"paper":{"abstract_excerpt":"Gravitational lensing of the cosmic microwave background generates a curl pattern in the observed polarization. This \"B-mode\" signal provides a measure of the projected mass distribution over the entire observable Universe and also acts as a contaminant for the measurement of primordial gravity-wave signals. In this Letter we present the first detection of gravitational lensing B modes, using first-season data from the polarization-sensitive receiver on the South Pole Telescope (SPTpol). We construct a template for the lensing B-mode signal by combining E-mode polarization measured by SPTpol w","authors_text":"A. A. Stark, A. Conley, A. Crites, A. N. Bender, A. T. Lee, B. A. Benson, B. R. Saliwanchik, B. Schulz, C. L. Chang, C. Liang, C. L. Reichardt, C. Pryke, C. Tucker, D. Hanson, D. Li, D. Luong-Van, E. Leitch, E. M. George, G. C. Hilton, G. Marsden, G. P. Holder, G. Smecher, G. Wang, H. C. Chiang, H-M. Cho, J. A. Beall, J. D. Hrubes, J. D. Vieira, J. E. Austermann, J. E. Carlstrom, J. E. Ruhl, J. Gallicchio, J. Gao, J. Hubmayr, J. J. Bock, J. J. McMahon, J. Mehl, J. P. Nibarger, J. T. Sayre, J. W. Henning, K. A. Aird, K. D. Irwin, K. K. Schaffer, K. Story, K. Vanderlinde, L. E. Bleem, L. Knox, L. Mocanu, M. A. Dobbs, M. P. Viero, M. Zemcov, N. Harrington, N. Huang, N. W. Halverson, O. Zahn, P. A. R. Ade, R. Keisler, S. Hoover, S. Padin, S. S. Meyer, T. de Haan, T. E. Montroy, T. M. Crawford, T. Natoli, V. Novosad, V. Yefremenko, W. Everett, W. L. Holzapfel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-22T19:34:08Z","title":"Detection of B-mode Polarization in the Cosmic Microwave Background with Data from the South Pole Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5830","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":"sha256:01936ab085b3b432bb9dcc54a5d40380ea75cbdab4523ba27ab1b0c8d8e918eb","target":"record","created_at":"2026-05-18T03:08:36Z","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":"00ad8861cf3e6b2338597c540d5083731c779b7102e86faf903caa12f8a4449d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-22T19:34:08Z","title_canon_sha256":"aaa977a6f624eabac6102034bd314998d33391e82bd6091bfa81440bad468f6f"},"schema_version":"1.0","source":{"id":"1307.5830","kind":"arxiv","version":2}},"canonical_sha256":"035c2fd6561077d4c3837e7736ed7c9cf64869d10eda773480b904ee3b03c72a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"035c2fd6561077d4c3837e7736ed7c9cf64869d10eda773480b904ee3b03c72a","first_computed_at":"2026-05-18T03:08:36.574617Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:08:36.574617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kH4+xtdafZnDlwpsll35a4kh/nXcxp6si3advN6i8W7rJTmhDZf80raaNQI3le2l7x0xyxzpUxM4HBzjXpqeAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:08:36.575308Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.5830","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01936ab085b3b432bb9dcc54a5d40380ea75cbdab4523ba27ab1b0c8d8e918eb","sha256:27cf17fff61b78fcd2f9cfb2fee7159e0de5748255f9f4aa77922887b283677a"],"state_sha256":"ef4a20934d1050366ae53af3fd3081d5945aea80f30e563d4c5b2ccc7d9ed8f3"}