{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:VTTSPVRXQNXTBS3XNVG4DNXGKI","short_pith_number":"pith:VTTSPVRX","canonical_record":{"source":{"id":"1112.3561","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-15T16:38:31Z","cross_cats_sorted":["astro-ph.SR","gr-qc"],"title_canon_sha256":"37003f963b4ecab8bc02f507f1c95c9628b5f4df753dd707f9ad0f1a5137d0cf","abstract_canon_sha256":"4d9367feb0ff9d1cd268d47a0952771cc34a1f0802ca287e7a0cc5fd5d6ec171"},"schema_version":"1.0"},"canonical_sha256":"ace727d637836f30cb776d4dc1b6e652248eb6a0f1a5975269cf4325be983f01","source":{"kind":"arxiv","id":"1112.3561","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.3561","created_at":"2026-05-18T03:56:22Z"},{"alias_kind":"arxiv_version","alias_value":"1112.3561v2","created_at":"2026-05-18T03:56:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.3561","created_at":"2026-05-18T03:56:22Z"},{"alias_kind":"pith_short_12","alias_value":"VTTSPVRXQNXT","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"VTTSPVRXQNXTBS3X","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"VTTSPVRX","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:VTTSPVRXQNXTBS3XNVG4DNXGKI","target":"record","payload":{"canonical_record":{"source":{"id":"1112.3561","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-15T16:38:31Z","cross_cats_sorted":["astro-ph.SR","gr-qc"],"title_canon_sha256":"37003f963b4ecab8bc02f507f1c95c9628b5f4df753dd707f9ad0f1a5137d0cf","abstract_canon_sha256":"4d9367feb0ff9d1cd268d47a0952771cc34a1f0802ca287e7a0cc5fd5d6ec171"},"schema_version":"1.0"},"canonical_sha256":"ace727d637836f30cb776d4dc1b6e652248eb6a0f1a5975269cf4325be983f01","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:56:22.226698Z","signature_b64":"/SU/+5r13JRYBLmKngS7+O3G16fiWRwy4eE8jIvChHTEwQaupdxohksfrAYmwHn3Imuh/aL2XBMzYwNyCwdHDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ace727d637836f30cb776d4dc1b6e652248eb6a0f1a5975269cf4325be983f01","last_reissued_at":"2026-05-18T03:56:22.225971Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:56:22.225971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.3561","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:56:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Tpx4PN1wwhETNgST1yZ/ePj+sNMheNfa1EzJYxmIq2ppdYlHI8KmCZ7fw/b78Be15jbock75a0reCw6wgPoDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T15:57:05.498770Z"},"content_sha256":"1debbb3a70e1507bff43d4ac7102d0691892ecdddc35072756d6e38e0107485f","schema_version":"1.0","event_id":"sha256:1debbb3a70e1507bff43d4ac7102d0691892ecdddc35072756d6e38e0107485f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:VTTSPVRXQNXTBS3XNVG4DNXGKI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coupled polar-axial magnetar oscillations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"A. Colaiuda, K. D. Kokkotas","submitted_at":"2011-12-15T16:38:31Z","abstract_excerpt":"We study coupled axial and polar axisymmetric oscillations of a neutron star endowed with a strong magnetic field, having both poloidal and toroidal components. The toroidal component of the magnetic field is driving the coupling between the polar and axial oscillations. The star is composed of a fluid core as well as a solid crust. Using a two dimensional general relativistic simulation and a magnetic field B = 10^16 G, we study the change in the polar and axial spectrum caused by the coupling. We find that the axial spectrum suffers a dramatic change in its nature, losing its continuum chara"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.3561","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:56:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gDr7Jwyu11h5Yzk8rL5HOWm66SIKJ/uKN8ROt0eDXvvoTVgwFZpYUP0IIZsKhZD8dzZI4b1L+m0g0OgjSCh/BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T15:57:05.499310Z"},"content_sha256":"aebf3a369e93ac940cc6a9038dbe6563dd00afea969353dfd37604d1289f2692","schema_version":"1.0","event_id":"sha256:aebf3a369e93ac940cc6a9038dbe6563dd00afea969353dfd37604d1289f2692"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VTTSPVRXQNXTBS3XNVG4DNXGKI/bundle.json","state_url":"https://pith.science/pith/VTTSPVRXQNXTBS3XNVG4DNXGKI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VTTSPVRXQNXTBS3XNVG4DNXGKI/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-13T15:57:05Z","links":{"resolver":"https://pith.science/pith/VTTSPVRXQNXTBS3XNVG4DNXGKI","bundle":"https://pith.science/pith/VTTSPVRXQNXTBS3XNVG4DNXGKI/bundle.json","state":"https://pith.science/pith/VTTSPVRXQNXTBS3XNVG4DNXGKI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VTTSPVRXQNXTBS3XNVG4DNXGKI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:VTTSPVRXQNXTBS3XNVG4DNXGKI","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":"4d9367feb0ff9d1cd268d47a0952771cc34a1f0802ca287e7a0cc5fd5d6ec171","cross_cats_sorted":["astro-ph.SR","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-15T16:38:31Z","title_canon_sha256":"37003f963b4ecab8bc02f507f1c95c9628b5f4df753dd707f9ad0f1a5137d0cf"},"schema_version":"1.0","source":{"id":"1112.3561","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.3561","created_at":"2026-05-18T03:56:22Z"},{"alias_kind":"arxiv_version","alias_value":"1112.3561v2","created_at":"2026-05-18T03:56:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.3561","created_at":"2026-05-18T03:56:22Z"},{"alias_kind":"pith_short_12","alias_value":"VTTSPVRXQNXT","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"VTTSPVRXQNXTBS3X","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"VTTSPVRX","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:aebf3a369e93ac940cc6a9038dbe6563dd00afea969353dfd37604d1289f2692","target":"graph","created_at":"2026-05-18T03:56:22Z","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":"We study coupled axial and polar axisymmetric oscillations of a neutron star endowed with a strong magnetic field, having both poloidal and toroidal components. The toroidal component of the magnetic field is driving the coupling between the polar and axial oscillations. The star is composed of a fluid core as well as a solid crust. Using a two dimensional general relativistic simulation and a magnetic field B = 10^16 G, we study the change in the polar and axial spectrum caused by the coupling. We find that the axial spectrum suffers a dramatic change in its nature, losing its continuum chara","authors_text":"A. Colaiuda, K. D. Kokkotas","cross_cats":["astro-ph.SR","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-15T16:38:31Z","title":"Coupled polar-axial magnetar oscillations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.3561","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":"sha256:1debbb3a70e1507bff43d4ac7102d0691892ecdddc35072756d6e38e0107485f","target":"record","created_at":"2026-05-18T03:56:22Z","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":"4d9367feb0ff9d1cd268d47a0952771cc34a1f0802ca287e7a0cc5fd5d6ec171","cross_cats_sorted":["astro-ph.SR","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-15T16:38:31Z","title_canon_sha256":"37003f963b4ecab8bc02f507f1c95c9628b5f4df753dd707f9ad0f1a5137d0cf"},"schema_version":"1.0","source":{"id":"1112.3561","kind":"arxiv","version":2}},"canonical_sha256":"ace727d637836f30cb776d4dc1b6e652248eb6a0f1a5975269cf4325be983f01","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ace727d637836f30cb776d4dc1b6e652248eb6a0f1a5975269cf4325be983f01","first_computed_at":"2026-05-18T03:56:22.225971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:56:22.225971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/SU/+5r13JRYBLmKngS7+O3G16fiWRwy4eE8jIvChHTEwQaupdxohksfrAYmwHn3Imuh/aL2XBMzYwNyCwdHDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:56:22.226698Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.3561","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1debbb3a70e1507bff43d4ac7102d0691892ecdddc35072756d6e38e0107485f","sha256:aebf3a369e93ac940cc6a9038dbe6563dd00afea969353dfd37604d1289f2692"],"state_sha256":"69c7d161122249ab5bb5576ac99ac4ee9fc3fd20a08b5be0d5db62e16e4cc130"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pJaxvkSzrhU+C56lHkVX0trfeUR26aUoQJRvXvPvTH6fjt1yhzo1q8v/kYwKeGbW3jHqF379+NliOjNQqmxlAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T15:57:05.503428Z","bundle_sha256":"8dff43d7b2fd5a9db868ae73c934f02dd159d04d1ce4f90321d53d534aadc7fc"}}