{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:3J2DSCLZZA4S6H6IA4BTVUN45L","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":"0d7d89a8a9941d1fa8141d8b3a85df845837097ea4e190e81a186bf9788b6e01","cross_cats_sorted":["gr-qc"],"license":"","primary_cat":"astro-ph","submitted_at":"2005-02-27T02:31:00Z","title_canon_sha256":"79ff418205e1d5742343f0b6b306dd8ea29dd72f48dafb97a592f3d17f502ba6"},"schema_version":"1.0","source":{"id":"astro-ph/0502560","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0502560","created_at":"2026-05-18T01:28:44Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0502560v2","created_at":"2026-05-18T01:28:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0502560","created_at":"2026-05-18T01:28:44Z"},{"alias_kind":"pith_short_12","alias_value":"3J2DSCLZZA4S","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"3J2DSCLZZA4S6H6I","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"3J2DSCLZ","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:cf351c8061db81bb4682f7b3bf64fdbd01a5ea7a55bde00149049623d82bccc1","target":"graph","created_at":"2026-05-18T01:28:44Z","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":"Imagine a swarm of free particles near a point P outside a gravitating mass M and a free reference particle at P that is on a radial escape trajectory away from M. Relative to this reference particle and in a Fermi normal coordinate system constructed along its worldline, the particles in the swarm that move along the radial direction and are ultrarelativistic (that is, they have speeds above c/sqrt(2)) decelerate toward this terminal speed. On the other hand, the swarm particles that are ultrarelativistic and move in directions normal to the radial (jet) directions accelerate to almost the sp","authors_text":"B. Mashhoon, C. Chicone","cross_cats":["gr-qc"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-02-27T02:31:00Z","title":"A Gravitational Mechanism for the Acceleration of Ultrarelativistic Particles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0502560","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":"sha256:4868d134f3f429a02db26734bb2ff518b616401cd0a714b14b88e5f57c623b2a","target":"record","created_at":"2026-05-18T01:28:44Z","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":"0d7d89a8a9941d1fa8141d8b3a85df845837097ea4e190e81a186bf9788b6e01","cross_cats_sorted":["gr-qc"],"license":"","primary_cat":"astro-ph","submitted_at":"2005-02-27T02:31:00Z","title_canon_sha256":"79ff418205e1d5742343f0b6b306dd8ea29dd72f48dafb97a592f3d17f502ba6"},"schema_version":"1.0","source":{"id":"astro-ph/0502560","kind":"arxiv","version":2}},"canonical_sha256":"da74390979c8392f1fc807033ad1bceaf72b2997617cb111ddf3716800d035f5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da74390979c8392f1fc807033ad1bceaf72b2997617cb111ddf3716800d035f5","first_computed_at":"2026-05-18T01:28:44.757340Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:28:44.757340Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e2QN/hmBXfhDyax22T5tpmUI0UT2G9mhZYI9lyhDrcRMUWOtcfq6sOFClnYmHPpPrM4Soj9VDqPI96eHfoUwDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:28:44.757832Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0502560","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4868d134f3f429a02db26734bb2ff518b616401cd0a714b14b88e5f57c623b2a","sha256:cf351c8061db81bb4682f7b3bf64fdbd01a5ea7a55bde00149049623d82bccc1"],"state_sha256":"d1838b8fb84b334371d77d4729e609b92f36e827367a82c3ac6badca90558e11"}