{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:LPCTVKIIN5XDBZMXD3UKV5W3Q7","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":"fd28851f6658ea96bf923f40cd459a04f2f7a742a42ca2c944891af8d553a782","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-04-14T19:25:19Z","title_canon_sha256":"3f544d4dca250e347e500e76000c44defebf44fbdc81c3204653dde37ec51244"},"schema_version":"1.0","source":{"id":"1404.3705","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.3705","created_at":"2026-05-18T01:43:34Z"},{"alias_kind":"arxiv_version","alias_value":"1404.3705v2","created_at":"2026-05-18T01:43:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.3705","created_at":"2026-05-18T01:43:34Z"},{"alias_kind":"pith_short_12","alias_value":"LPCTVKIIN5XD","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"LPCTVKIIN5XDBZMX","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"LPCTVKII","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:0a8edfa565e21b26651d5b2a2b8e4acbde24b161cae432293694e7506abce651","target":"graph","created_at":"2026-05-18T01:43:34Z","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":"Magnetars are a special type of neutron stars, considered to have extreme dipole magnetic fields reaching ~1e+11 T. The magnetar 4U 0142+61, one of prototypes of this class, was studied in broadband X-rays (0.5-70 keV) with the Suzaku observatory. In hard X-rays (15-40 keV), its 8.69 sec pulsations suffered slow phase modulations by +/-0.7 sec, with a period of ~15 hours. When this effect is interpreted as free precession of the neutron star, the object is inferred to deviate from spherical symmetry by ~1.6e-4 in its moments of inertia. This deformation, when ascribed to magnetic pressure, sug","authors_text":"Hiroaki Murakami, Junko S. Hiraga, Kazuhiro Nakazawa, Kazuo Makishima, Makoto Sasano, Soki Sakurai, Teruaki Enoto, Toshio Nakano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-04-14T19:25:19Z","title":"Possible Evidence for Free Precession of a Strongly Magnetized Neutron Star in the Magnetar 4U 0142+61"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.3705","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":"sha256:8e568a15010cbd21dd121d9815462bf4996cf1c5865bcd94cbe8b442b67845a6","target":"record","created_at":"2026-05-18T01:43:34Z","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":"fd28851f6658ea96bf923f40cd459a04f2f7a742a42ca2c944891af8d553a782","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-04-14T19:25:19Z","title_canon_sha256":"3f544d4dca250e347e500e76000c44defebf44fbdc81c3204653dde37ec51244"},"schema_version":"1.0","source":{"id":"1404.3705","kind":"arxiv","version":2}},"canonical_sha256":"5bc53aa9086f6e30e5971ee8aaf6db87d4304c4bb462c5242fc831e2f6a59221","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bc53aa9086f6e30e5971ee8aaf6db87d4304c4bb462c5242fc831e2f6a59221","first_computed_at":"2026-05-18T01:43:34.768246Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:34.768246Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D/Zca/qSzigzFpF6dQvxN1wxWD4Gco2UH3WvxtAgiMfIfnUUiW63I5HiX2zQTOX/lV/mrNi0Md+kzMwUUdZoAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:34.768900Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.3705","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e568a15010cbd21dd121d9815462bf4996cf1c5865bcd94cbe8b442b67845a6","sha256:0a8edfa565e21b26651d5b2a2b8e4acbde24b161cae432293694e7506abce651"],"state_sha256":"2d938c52b08cd5090a600de5ba06f7fb4146d2976828a1d2d2f8d62acab50824"}