{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ZR2O6B44V6NRFXVCYHZHKT5LG6","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":"678235ea8b9654740b139c3765d36eed97158d2d333a74cf568cb39542879687","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-03-21T13:59:53Z","title_canon_sha256":"ec971bcb4e1f6f713ab345717675b3da1edb69e2e90df7be9e73471486e14742"},"schema_version":"1.0","source":{"id":"1303.5258","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.5258","created_at":"2026-05-18T03:20:09Z"},{"alias_kind":"arxiv_version","alias_value":"1303.5258v1","created_at":"2026-05-18T03:20:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.5258","created_at":"2026-05-18T03:20:09Z"},{"alias_kind":"pith_short_12","alias_value":"ZR2O6B44V6NR","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZR2O6B44V6NRFXVC","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZR2O6B44","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:68f2f55f4ec2e3338a285a8eca62677bb225d65676f641aa61c8b085e70ecaa1","target":"graph","created_at":"2026-05-18T03:20:09Z","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 analyze different possibilities to explain the wide initial spin period distribution of radio pulsars presented by Noutsos et al. (2013). With a population synthesis modeling we demonstrate that magnetic field decay can be used to interpret the difference between the recent results by Noutsos et al. (2013) and those by Popov & Turolla (2012), where a much younger population of NSs associated with supernova remnants with known ages has been studied. In particular, an exponential field decay with tau_mag = 5Myrs can produce a \"tail\" in the reconstructed initial spin period distribution (as ob","authors_text":"A. P. Igoshev (Sobolev Institut of Astronomy, Russia), Russia) S. B. Popov (Sternberg Astronomical Institute, Saint Petersburg State University","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-03-21T13:59:53Z","title":"Neutron stars initial spin period distribution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.5258","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":"sha256:1b4ff4d4a862571aef9a6942be42cf9828b661a42def221fc02932d534c4451c","target":"record","created_at":"2026-05-18T03:20:09Z","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":"678235ea8b9654740b139c3765d36eed97158d2d333a74cf568cb39542879687","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-03-21T13:59:53Z","title_canon_sha256":"ec971bcb4e1f6f713ab345717675b3da1edb69e2e90df7be9e73471486e14742"},"schema_version":"1.0","source":{"id":"1303.5258","kind":"arxiv","version":1}},"canonical_sha256":"cc74ef079caf9b12dea2c1f2754fab37815fc507c9542cf8269c5c66f76f6f19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc74ef079caf9b12dea2c1f2754fab37815fc507c9542cf8269c5c66f76f6f19","first_computed_at":"2026-05-18T03:20:09.129899Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:20:09.129899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SYdoAPStlzhc0xkW79EwUGb0HmDH4MR2IkoPYMbvjFJi73R8mj83gbbInuHPKB0AaIfOavwm90N3bamlq0DyDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:20:09.130348Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.5258","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b4ff4d4a862571aef9a6942be42cf9828b661a42def221fc02932d534c4451c","sha256:68f2f55f4ec2e3338a285a8eca62677bb225d65676f641aa61c8b085e70ecaa1"],"state_sha256":"d067dff9b04088633f61aa49678fc9fbd8ac267f702f93f2c0565069c4d092b8"}