{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:2UFVIFVTKAV7QRAQGUT6WUSDMJ","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":"f92123072b9f1b727cb16b5ded453ef11ccccbadae6a01ee51438952a2e6b598","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-07-01T16:51:32Z","title_canon_sha256":"79b22eb8df5cc6760baa41ea9fca83fa7f871c69e501c1aafd35a5f6631a43e6"},"schema_version":"1.0","source":{"id":"2507.00946","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.00946","created_at":"2026-07-05T11:30:18Z"},{"alias_kind":"arxiv_version","alias_value":"2507.00946v1","created_at":"2026-07-05T11:30:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.00946","created_at":"2026-07-05T11:30:18Z"},{"alias_kind":"pith_short_12","alias_value":"2UFVIFVTKAV7","created_at":"2026-07-05T11:30:18Z"},{"alias_kind":"pith_short_16","alias_value":"2UFVIFVTKAV7QRAQ","created_at":"2026-07-05T11:30:18Z"},{"alias_kind":"pith_short_8","alias_value":"2UFVIFVT","created_at":"2026-07-05T11:30:18Z"}],"graph_snapshots":[{"event_id":"sha256:d29446882226e009d09fa68956d2c13a8eeb7e2d534e6b8bfe99ac64de89cba7","target":"graph","created_at":"2026-07-05T11:30:18Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2507.00946/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a possible binary evolution model for the formation of ultra-long period pulsars (ULPPs). The model involves two key stages: first, a neutron star (NS) in wide binaries undergoes an effective spin-down phase through wind-fed accretion from its massive stellar companion; second, the supernova explosion of the companion leads to the disruption of the binary system, and produces two isolated compact stars. One of the them is the first-born, slowly rotating NSs, and our binary and spin evolution calculations show that the spin periods range from $\\lesssim 0.1$ s to $\\gtrsim 10^8$ s. Thi","authors_text":"Dong Lai, Hao-Ran Yang, Xiang-Dong Li, Ying-Han Mao, Zhu-Ling Deng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-07-01T16:51:32Z","title":"A binary origin of ultra-long period radio pulsars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.00946","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":"sha256:00049b10173409743576bdfc69f3c86c8488d93d9659c2c3a1c7139e3462dd2c","target":"record","created_at":"2026-07-05T11:30:18Z","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":"f92123072b9f1b727cb16b5ded453ef11ccccbadae6a01ee51438952a2e6b598","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-07-01T16:51:32Z","title_canon_sha256":"79b22eb8df5cc6760baa41ea9fca83fa7f871c69e501c1aafd35a5f6631a43e6"},"schema_version":"1.0","source":{"id":"2507.00946","kind":"arxiv","version":1}},"canonical_sha256":"d50b5416b3502bf844103527eb5243624a9fbbbd95ff936907dd33186b31e21d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d50b5416b3502bf844103527eb5243624a9fbbbd95ff936907dd33186b31e21d","first_computed_at":"2026-07-05T11:30:18.082477Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:30:18.082477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SQ/YSTeVWZB1oV3dVgLQX+5+Tk6O6ffJ0VXwEffxh6HMoWDCb+Jq1yiv7LsnZcqsbIzOHRzq/spfx8pCTOSTCw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:30:18.082963Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.00946","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00049b10173409743576bdfc69f3c86c8488d93d9659c2c3a1c7139e3462dd2c","sha256:d29446882226e009d09fa68956d2c13a8eeb7e2d534e6b8bfe99ac64de89cba7"],"state_sha256":"48c75082c906099990dfffa9f4ee9342de41ee75241abbf9be3a3944e6757927"}