{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:LGDH2FEJBKMTRDKOVUSZPUCKYW","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":"be0aa196a96e29fbd13589e5a1d24d35a5bdc3e8096947839af250a54d8a14e3","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-04-12T08:20:33Z","title_canon_sha256":"3f109529c32e3c5ddbe7bd6c9fe696c5d3590d19b7f6a36034f7f9eb47970609"},"schema_version":"1.0","source":{"id":"1304.3566","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.3566","created_at":"2026-05-18T01:50:33Z"},{"alias_kind":"arxiv_version","alias_value":"1304.3566v1","created_at":"2026-05-18T01:50:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.3566","created_at":"2026-05-18T01:50:33Z"},{"alias_kind":"pith_short_12","alias_value":"LGDH2FEJBKMT","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"LGDH2FEJBKMTRDKO","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"LGDH2FEJ","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:de81857a97ada9a263128a61fad15ca8068d0e39a77894204216c16921db27e0","target":"graph","created_at":"2026-05-18T01:50:33Z","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":"Our numerical simulations show that axisymmetric, torsional, magneto-elastic oscillations of magnetars with a superfluid core can explain the whole range of observed quasi-periodic oscillations (QPOs) in the giant flares of soft gamma-ray repeaters. There exist constant phase, magneto-elastic QPOs at both low (f<150 Hz) and high frequencies (f>500 Hz), in full agreement with observations. The range of magnetic field strengths required to match the observed QPO frequencies agrees with that from spin-down estimates. These results strongly suggest that neutrons in magnetar cores are superfluid.","authors_text":"Ewald M\\\"uller, Jos\\'e A. Font, Michael Gabler, Nikolaos Stergioulas, Pablo Cerd\\'a-Dur\\'an","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-04-12T08:20:33Z","title":"Imprints of superfluidity on magneto-elastic QPOs of SGRs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.3566","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":"sha256:904b9b3e3e3538f829093bd302efb8a58da8401e72e7e43505d99822b70851da","target":"record","created_at":"2026-05-18T01:50:33Z","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":"be0aa196a96e29fbd13589e5a1d24d35a5bdc3e8096947839af250a54d8a14e3","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-04-12T08:20:33Z","title_canon_sha256":"3f109529c32e3c5ddbe7bd6c9fe696c5d3590d19b7f6a36034f7f9eb47970609"},"schema_version":"1.0","source":{"id":"1304.3566","kind":"arxiv","version":1}},"canonical_sha256":"59867d14890a99388d4ead2597d04ac59bdc8bc2006f7f1e9ce60aabf2e26fd1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59867d14890a99388d4ead2597d04ac59bdc8bc2006f7f1e9ce60aabf2e26fd1","first_computed_at":"2026-05-18T01:50:33.525597Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:33.525597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O6yJzb8i8LbCNPyOdw4Alq5A+675QE1g9e8n0jCGcrME+1Nrj9IYnzVuuf8QW3L7OZ4Z41GIbI+U1FuMisdYBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:33.526259Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.3566","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:904b9b3e3e3538f829093bd302efb8a58da8401e72e7e43505d99822b70851da","sha256:de81857a97ada9a263128a61fad15ca8068d0e39a77894204216c16921db27e0"],"state_sha256":"1c5a8796e7ba6d80637ce61bdd1b680f888046e8c7e46182baacdaa41c7076a9"}