{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:LLLB4DHGDA7JCYTTRU4I42SAJA","short_pith_number":"pith:LLLB4DHG","canonical_record":{"source":{"id":"astro-ph/9912545","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-12-29T17:06:35Z","cross_cats_sorted":[],"title_canon_sha256":"75f5db75791fac7729f954f137ad530cfabc8ecebb5059d8a013b5ab5f524e59","abstract_canon_sha256":"7f131fae3dd3b0ddb56420fe3607584193fb672760ae7f155aea2c5ca15a470d"},"schema_version":"1.0"},"canonical_sha256":"5ad61e0ce6183e9162738d388e6a404803c3ab7b409426fb106cc6e11ee38b19","source":{"kind":"arxiv","id":"astro-ph/9912545","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9912545","created_at":"2026-05-18T01:07:35Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9912545v1","created_at":"2026-05-18T01:07:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9912545","created_at":"2026-05-18T01:07:35Z"},{"alias_kind":"pith_short_12","alias_value":"LLLB4DHGDA7J","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"LLLB4DHGDA7JCYTT","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"LLLB4DHG","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:LLLB4DHGDA7JCYTTRU4I42SAJA","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9912545","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-12-29T17:06:35Z","cross_cats_sorted":[],"title_canon_sha256":"75f5db75791fac7729f954f137ad530cfabc8ecebb5059d8a013b5ab5f524e59","abstract_canon_sha256":"7f131fae3dd3b0ddb56420fe3607584193fb672760ae7f155aea2c5ca15a470d"},"schema_version":"1.0"},"canonical_sha256":"5ad61e0ce6183e9162738d388e6a404803c3ab7b409426fb106cc6e11ee38b19","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:35.663405Z","signature_b64":"tArslnaNGJjLliM8lxV8P0COabrWjZRO5I/i8aM/AwhW4aQ7492NKUICOBdga+PwdOqReQfYaxbhvsPfOzQRCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ad61e0ce6183e9162738d388e6a404803c3ab7b409426fb106cc6e11ee38b19","last_reissued_at":"2026-05-18T01:07:35.662727Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:35.662727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9912545","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:07:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H6fxsD5Y4h1YRV+TAyKNjV1aTUI/VzyIL6ggM83Zf0eNEKPAgPohbbBXROO3z9aE/RzbqOBiDYn5VEoIvIDOBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:14:54.124773Z"},"content_sha256":"90b29ed0464c82fb133f3175833297a111557f232e9559779f6226b8811d938d","schema_version":"1.0","event_id":"sha256:90b29ed0464c82fb133f3175833297a111557f232e9559779f6226b8811d938d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:LLLB4DHGDA7JCYTTRU4I42SAJA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutron stars in X-ray pulsars and their magnetic fields","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"S.B. Popov, V.M. Lipunov (Sternberg Astronomical Institute)","submitted_at":"1999-12-29T17:06:35Z","abstract_excerpt":"Estimates of the magnetic field of neutron stars in X-ray pulsars are obtained using the hypothesis of the equilibrium period for disk and wind accretion and also from the BATSE data on timing of X-ray pulsars using the observed maximum spin-down rate. Cyclotron lines at energies $\\ge 100$ keV in several Be-transient are predicted for future observations.\n We suggest a new method of estimating distances to X-ray pulsars and their magnetic fields. Using observations of fluxes and period variations in the model of disk accretion one can estimate the magnetic momentum of a neutron star and the di"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9912545","kind":"arxiv","version":1},"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":"2026-05-18T01:07:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eB9aDzhO7+K+9KJm5ZjuU9bPumh3Xjin8+k13jpgsjsxncfPouuhbw5e35dCM3NGwF+NrIJz7v5jKspUQOntCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:14:54.125335Z"},"content_sha256":"17042a0a9e2c35c7989def0b10b2a1eb923389bad695dff14edf9f63e820b41e","schema_version":"1.0","event_id":"sha256:17042a0a9e2c35c7989def0b10b2a1eb923389bad695dff14edf9f63e820b41e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LLLB4DHGDA7JCYTTRU4I42SAJA/bundle.json","state_url":"https://pith.science/pith/LLLB4DHGDA7JCYTTRU4I42SAJA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LLLB4DHGDA7JCYTTRU4I42SAJA/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":"2026-06-06T21:14:54Z","links":{"resolver":"https://pith.science/pith/LLLB4DHGDA7JCYTTRU4I42SAJA","bundle":"https://pith.science/pith/LLLB4DHGDA7JCYTTRU4I42SAJA/bundle.json","state":"https://pith.science/pith/LLLB4DHGDA7JCYTTRU4I42SAJA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LLLB4DHGDA7JCYTTRU4I42SAJA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:LLLB4DHGDA7JCYTTRU4I42SAJA","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":"7f131fae3dd3b0ddb56420fe3607584193fb672760ae7f155aea2c5ca15a470d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-12-29T17:06:35Z","title_canon_sha256":"75f5db75791fac7729f954f137ad530cfabc8ecebb5059d8a013b5ab5f524e59"},"schema_version":"1.0","source":{"id":"astro-ph/9912545","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9912545","created_at":"2026-05-18T01:07:35Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9912545v1","created_at":"2026-05-18T01:07:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9912545","created_at":"2026-05-18T01:07:35Z"},{"alias_kind":"pith_short_12","alias_value":"LLLB4DHGDA7J","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"LLLB4DHGDA7JCYTT","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"LLLB4DHG","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:17042a0a9e2c35c7989def0b10b2a1eb923389bad695dff14edf9f63e820b41e","target":"graph","created_at":"2026-05-18T01:07:35Z","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":"Estimates of the magnetic field of neutron stars in X-ray pulsars are obtained using the hypothesis of the equilibrium period for disk and wind accretion and also from the BATSE data on timing of X-ray pulsars using the observed maximum spin-down rate. Cyclotron lines at energies $\\ge 100$ keV in several Be-transient are predicted for future observations.\n We suggest a new method of estimating distances to X-ray pulsars and their magnetic fields. Using observations of fluxes and period variations in the model of disk accretion one can estimate the magnetic momentum of a neutron star and the di","authors_text":"S.B. Popov, V.M. Lipunov (Sternberg Astronomical Institute)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-12-29T17:06:35Z","title":"Neutron stars in X-ray pulsars and their magnetic fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9912545","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":"sha256:90b29ed0464c82fb133f3175833297a111557f232e9559779f6226b8811d938d","target":"record","created_at":"2026-05-18T01:07:35Z","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":"7f131fae3dd3b0ddb56420fe3607584193fb672760ae7f155aea2c5ca15a470d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-12-29T17:06:35Z","title_canon_sha256":"75f5db75791fac7729f954f137ad530cfabc8ecebb5059d8a013b5ab5f524e59"},"schema_version":"1.0","source":{"id":"astro-ph/9912545","kind":"arxiv","version":1}},"canonical_sha256":"5ad61e0ce6183e9162738d388e6a404803c3ab7b409426fb106cc6e11ee38b19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ad61e0ce6183e9162738d388e6a404803c3ab7b409426fb106cc6e11ee38b19","first_computed_at":"2026-05-18T01:07:35.662727Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:35.662727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tArslnaNGJjLliM8lxV8P0COabrWjZRO5I/i8aM/AwhW4aQ7492NKUICOBdga+PwdOqReQfYaxbhvsPfOzQRCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:35.663405Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9912545","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90b29ed0464c82fb133f3175833297a111557f232e9559779f6226b8811d938d","sha256:17042a0a9e2c35c7989def0b10b2a1eb923389bad695dff14edf9f63e820b41e"],"state_sha256":"65d2c998fdf46ab7fd10b805a0e5c9a74140f1fd410e19122c61026ddb462f97"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+GJoTjgmYJPu8/YZ2W6K8MCykSFgnPyS/kHgHC9caotgEBfCbXLjwJ0j0PPztYL+WAZwuCDwE0wRncq1Nf0qDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T21:14:54.128353Z","bundle_sha256":"d189a9ba2d54c6778b04541eca51ee2b3599cb80f38e44322581e50af0ca1e1e"}}