{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:BSSEMSZLQPA3K3YPB7DUP3G2GM","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":"8ee13e7887b51cd8d09ff61bf575cfdce1c68765be5b7c5e8b22037da626d441","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-12-09T21:25:50Z","title_canon_sha256":"732f7440c6091cf249b553e202d0becd7f99ea4dd1fee5f92d5d9430f6d2da65"},"schema_version":"1.0","source":{"id":"1612.03185","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.03185","created_at":"2026-05-18T00:52:07Z"},{"alias_kind":"arxiv_version","alias_value":"1612.03185v1","created_at":"2026-05-18T00:52:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.03185","created_at":"2026-05-18T00:52:07Z"},{"alias_kind":"pith_short_12","alias_value":"BSSEMSZLQPA3","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"BSSEMSZLQPA3K3YP","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"BSSEMSZL","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:a90f95e148d772810123ac55fcc25ec8fb0d62c78321920e12e8874e6859ffc4","target":"graph","created_at":"2026-05-18T00:52:07Z","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":"The variable star AR Sco was recently discovered to pulse in brightness every 1.97 min from ultraviolet wavelengths into the radio regime. The system is composed of a cool, low-mass star in a tight, 3.55 hr orbit with a more massive white dwarf. Here we report new optical observations of AR Sco that show strong linear polarization (up to 40%) which varies strongly and periodically on both the spin period of the white dwarf and the beat period between the spin and orbital period, as well as low level (< a few %) circular polarization. These observations support the notion that, similar to neutr","authors_text":"B.T G\\\"ansicke, D.A.H. Buckley, P.J. Meintjes, S.B. Potter, T.R. Marsh","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-12-09T21:25:50Z","title":"Polarimetric evidence of a white dwarf pulsar in the binary system AR Scorpii"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03185","kind":"arxiv","version":1},"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":"sha256:75e97511cb22c39e4975d2c256c69b6b01ecc217c61f37ff90481b3522129428","target":"record","created_at":"2026-05-18T00:52:07Z","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":"8ee13e7887b51cd8d09ff61bf575cfdce1c68765be5b7c5e8b22037da626d441","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-12-09T21:25:50Z","title_canon_sha256":"732f7440c6091cf249b553e202d0becd7f99ea4dd1fee5f92d5d9430f6d2da65"},"schema_version":"1.0","source":{"id":"1612.03185","kind":"arxiv","version":1}},"canonical_sha256":"0ca4464b2b83c1b56f0f0fc747ecda3304fced65e8e47aba12b3b8d4a13e6180","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ca4464b2b83c1b56f0f0fc747ecda3304fced65e8e47aba12b3b8d4a13e6180","first_computed_at":"2026-05-18T00:52:07.928972Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:07.928972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l+jBWxNk5p9xkJPyRVrR/h++RBOkyolWc58FcED8xmUhlwmpLX6aRrt7JrYnZrEbVR6/KdVzwfiWXKCFzR7hBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:07.929706Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.03185","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75e97511cb22c39e4975d2c256c69b6b01ecc217c61f37ff90481b3522129428","sha256:a90f95e148d772810123ac55fcc25ec8fb0d62c78321920e12e8874e6859ffc4"],"state_sha256":"a1d47cdfb18d1149571cb06c2ba6b7bb7ac7ba4995cbf256054d2caa8c9e7b98"}