{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:2W6BBJJFCDUESD5BUT7OL4Z7O2","short_pith_number":"pith:2W6BBJJF","canonical_record":{"source":{"id":"1807.01289","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-07-03T17:06:52Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"b42aea36f119a890583b5ce5e1828e6648844e562d0f2008b1ca5dfe3b9eb9d9","abstract_canon_sha256":"a61d843a7f6ccd4ea127a7572efdd329cb33da621ab6bd23fca940cdd94b873c"},"schema_version":"1.0"},"canonical_sha256":"d5bc10a52510e8490fa1a4fee5f33f76823da7245fd5e668d695b168a492a468","source":{"kind":"arxiv","id":"1807.01289","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01289","created_at":"2026-05-18T00:04:48Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01289v2","created_at":"2026-05-18T00:04:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01289","created_at":"2026-05-18T00:04:48Z"},{"alias_kind":"pith_short_12","alias_value":"2W6BBJJFCDUE","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2W6BBJJFCDUESD5B","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2W6BBJJF","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:2W6BBJJFCDUESD5BUT7OL4Z7O2","target":"record","payload":{"canonical_record":{"source":{"id":"1807.01289","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-07-03T17:06:52Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"b42aea36f119a890583b5ce5e1828e6648844e562d0f2008b1ca5dfe3b9eb9d9","abstract_canon_sha256":"a61d843a7f6ccd4ea127a7572efdd329cb33da621ab6bd23fca940cdd94b873c"},"schema_version":"1.0"},"canonical_sha256":"d5bc10a52510e8490fa1a4fee5f33f76823da7245fd5e668d695b168a492a468","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:48.364399Z","signature_b64":"W9UzDQJw05on/y48WbpIxxSNjc3nkQjPG5VC7ERBTzuBcXEN3noeglRYfjn1Y9qyo4OH+tYRtWShSxyMiRyzBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5bc10a52510e8490fa1a4fee5f33f76823da7245fd5e668d695b168a492a468","last_reissued_at":"2026-05-18T00:04:48.363907Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:48.363907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.01289","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":"2026-05-18T00:04:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TgwjAbi3zbJXubX12i8r5qVv+aN+8gx0ojorNih6Wf4KltXpG+tJRIFDlSDFlgqT5QH8h5DWal57Hcx/6GfXAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:16:15.804921Z"},"content_sha256":"77cab802d2c353f7fa9239fd2ee1ac0811699002f235fb546801350bad681af6","schema_version":"1.0","event_id":"sha256:77cab802d2c353f7fa9239fd2ee1ac0811699002f235fb546801350bad681af6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:2W6BBJJFCDUESD5BUT7OL4Z7O2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutron-star spindown and magnetic inclination-angle evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"D. I. Jones, S. K. Lander","submitted_at":"2018-07-03T17:06:52Z","abstract_excerpt":"A rotating fluid star, endowed with a magnetic field, can undergo a form of precessional motion: a sum of rigid-body free precession and a non-rigid response. On secular timescales this motion is dissipated by bulk and shear viscous processes in the stellar interior and magnetospheric braking in the exterior, changing the inclination angle between the rotation and magnetic axes. Using our recent solutions for the non-rigid precessional dynamics, and viscous dissipation integrals derived in this paper, we make the only self-consistent calculation to date of these dissipation rates. We present t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01289","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":"2026-05-18T00:04:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cc3tLAA6Wudn17xlJfzkJK9tZXv1QnTkRYYKf6q3tY3CmgcYoqNtr50Guve/26ShI1+L/apY2bMzUd/TBy4WBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:16:15.805432Z"},"content_sha256":"6c6fd9fe84ef698c420ae625000512728fdf7bfb9d27c643308f0b96359b6f70","schema_version":"1.0","event_id":"sha256:6c6fd9fe84ef698c420ae625000512728fdf7bfb9d27c643308f0b96359b6f70"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2W6BBJJFCDUESD5BUT7OL4Z7O2/bundle.json","state_url":"https://pith.science/pith/2W6BBJJFCDUESD5BUT7OL4Z7O2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2W6BBJJFCDUESD5BUT7OL4Z7O2/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":"2026-08-13T23:16:15Z","links":{"resolver":"https://pith.science/pith/2W6BBJJFCDUESD5BUT7OL4Z7O2","bundle":"https://pith.science/pith/2W6BBJJFCDUESD5BUT7OL4Z7O2/bundle.json","state":"https://pith.science/pith/2W6BBJJFCDUESD5BUT7OL4Z7O2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2W6BBJJFCDUESD5BUT7OL4Z7O2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2W6BBJJFCDUESD5BUT7OL4Z7O2","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":"a61d843a7f6ccd4ea127a7572efdd329cb33da621ab6bd23fca940cdd94b873c","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-07-03T17:06:52Z","title_canon_sha256":"b42aea36f119a890583b5ce5e1828e6648844e562d0f2008b1ca5dfe3b9eb9d9"},"schema_version":"1.0","source":{"id":"1807.01289","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01289","created_at":"2026-05-18T00:04:48Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01289v2","created_at":"2026-05-18T00:04:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01289","created_at":"2026-05-18T00:04:48Z"},{"alias_kind":"pith_short_12","alias_value":"2W6BBJJFCDUE","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2W6BBJJFCDUESD5B","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2W6BBJJF","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:6c6fd9fe84ef698c420ae625000512728fdf7bfb9d27c643308f0b96359b6f70","target":"graph","created_at":"2026-05-18T00:04:48Z","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":"A rotating fluid star, endowed with a magnetic field, can undergo a form of precessional motion: a sum of rigid-body free precession and a non-rigid response. On secular timescales this motion is dissipated by bulk and shear viscous processes in the stellar interior and magnetospheric braking in the exterior, changing the inclination angle between the rotation and magnetic axes. Using our recent solutions for the non-rigid precessional dynamics, and viscous dissipation integrals derived in this paper, we make the only self-consistent calculation to date of these dissipation rates. We present t","authors_text":"D. I. Jones, S. K. Lander","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-07-03T17:06:52Z","title":"Neutron-star spindown and magnetic inclination-angle evolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01289","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":"sha256:77cab802d2c353f7fa9239fd2ee1ac0811699002f235fb546801350bad681af6","target":"record","created_at":"2026-05-18T00:04:48Z","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":"a61d843a7f6ccd4ea127a7572efdd329cb33da621ab6bd23fca940cdd94b873c","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-07-03T17:06:52Z","title_canon_sha256":"b42aea36f119a890583b5ce5e1828e6648844e562d0f2008b1ca5dfe3b9eb9d9"},"schema_version":"1.0","source":{"id":"1807.01289","kind":"arxiv","version":2}},"canonical_sha256":"d5bc10a52510e8490fa1a4fee5f33f76823da7245fd5e668d695b168a492a468","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5bc10a52510e8490fa1a4fee5f33f76823da7245fd5e668d695b168a492a468","first_computed_at":"2026-05-18T00:04:48.363907Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:48.363907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W9UzDQJw05on/y48WbpIxxSNjc3nkQjPG5VC7ERBTzuBcXEN3noeglRYfjn1Y9qyo4OH+tYRtWShSxyMiRyzBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:48.364399Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.01289","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:77cab802d2c353f7fa9239fd2ee1ac0811699002f235fb546801350bad681af6","sha256:6c6fd9fe84ef698c420ae625000512728fdf7bfb9d27c643308f0b96359b6f70"],"state_sha256":"57877ae72fbe024269deb5a623cce427ad98734b5456b55b70b22bd3b5759403"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LykO29kToM8PLsxu8BBPOBgVFfD8Iamh4N8GDu3AuTr5oi464pMOZCU3+qCZ6lPNPa6drp+kxBywOJ29zgftAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T23:16:15.847099Z","bundle_sha256":"8b8909fd5176a3113bdd6807e5d61b9e8ab0ea70552d233935a630304d833b8b"}}