{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:OLFUEOWQFRZX5D66WJ2BA4GYBC","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":"7b30a8f897b68d6989347d2076bddf349be723f83f3139b6e7031dfcb662bbd3","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-27T19:25:57Z","title_canon_sha256":"29dcee4c3464328fe23bccee300662626f0371de9bf407045b80875692b95680"},"schema_version":"1.0","source":{"id":"1202.6032","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.6032","created_at":"2026-05-18T01:58:19Z"},{"alias_kind":"arxiv_version","alias_value":"1202.6032v1","created_at":"2026-05-18T01:58:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.6032","created_at":"2026-05-18T01:58:19Z"},{"alias_kind":"pith_short_12","alias_value":"OLFUEOWQFRZX","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"OLFUEOWQFRZX5D66","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"OLFUEOWQ","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:01d6053ffe9f5e4f62010a4063fe7608d9041574556102735d7e7f496d3d459c","target":"graph","created_at":"2026-05-18T01:58:19Z","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 present 35 ks Chandra ACIS observations of the 42 Myr old radio pulsar PSR B1451-68. A point source is detected 0.32\" +/- 0.73\" from the expected radio pulsar position. It has ~200 counts in the 0.3-8 keV energy range. We identify this point source as the X-ray counterpart of the radio pulsar. PSR B1451-68 is located close to a 2MASS point source, for which we derive 7% as the upper limit on the flux contribution to the measured pulsar X-ray flux. The pulsar spectrum can be described by either a power-law model with photon index Gamma=2.4 (+0.4/-0.3) and a unrealistically high absorbing col","authors_text":"B. Posselt, G. G. Pavlov, G. P. Garmire, O. Kargaltsev, R. N. Manchester","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-27T19:25:57Z","title":"Chandra observations of the old pulsar PSR B1451-68"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.6032","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":"sha256:810cb8ab983fcc31a7b406269469a9546472b1710c36f384e5657caecb2d5051","target":"record","created_at":"2026-05-18T01:58:19Z","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":"7b30a8f897b68d6989347d2076bddf349be723f83f3139b6e7031dfcb662bbd3","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-27T19:25:57Z","title_canon_sha256":"29dcee4c3464328fe23bccee300662626f0371de9bf407045b80875692b95680"},"schema_version":"1.0","source":{"id":"1202.6032","kind":"arxiv","version":1}},"canonical_sha256":"72cb423ad02c737e8fdeb2741070d808826662cd20ea9db738c0b68975fa3bac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72cb423ad02c737e8fdeb2741070d808826662cd20ea9db738c0b68975fa3bac","first_computed_at":"2026-05-18T01:58:19.094094Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:19.094094Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SyLqUxvrR2apoMEJZNnfgGGT6pD0xBDbozCgEv6ESkxYBfvVz27VK+HblTl2Jr6j9INmJGr8SKyabG+ItYNWAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:19.094778Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.6032","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:810cb8ab983fcc31a7b406269469a9546472b1710c36f384e5657caecb2d5051","sha256:01d6053ffe9f5e4f62010a4063fe7608d9041574556102735d7e7f496d3d459c"],"state_sha256":"bcf97781572c9bf518e63ec70f864fc886cbe7275547e4bc441ebbf7247cf3b7"}