{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:6YIZPHHWCFN2BFGZSZWXZ7QSCL","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":"a68fe7bc0bc60745e6f2280ff18d8ebea924db6289441ce8ea45270042a88d76","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-10-06T18:51:20Z","title_canon_sha256":"eee5a0d3cd989a0ffe9806551d047c06cfe57d417c3a65d3bdb606970babe7fa"},"schema_version":"1.0","source":{"id":"0910.1072","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.1072","created_at":"2026-05-18T02:34:19Z"},{"alias_kind":"arxiv_version","alias_value":"0910.1072v1","created_at":"2026-05-18T02:34:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.1072","created_at":"2026-05-18T02:34:19Z"},{"alias_kind":"pith_short_12","alias_value":"6YIZPHHWCFN2","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"6YIZPHHWCFN2BFGZ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"6YIZPHHW","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:0d1546de2c9664958357dfc2a2e1bdf279bbcb48f4c9c488b596fddf905c8ff0","target":"graph","created_at":"2026-05-18T02:34:19Z","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":"Diffusive shock acceleration (DSA) at relativistic shocks is expected to be an important acceleration mechanism in a variety of astrophysical objects including extragalactic jets in active galactic nuclei and gamma ray bursts. These sources remain strong and interesting candidate sites for the generation of ultra-high energy cosmic rays. In this paper, key predictions of DSA at relativistic shocks that are salient to the issue of cosmic ray ion and electron production are outlined. Results from a Monte Carlo simulation of such diffusive acceleration in test-particle, relativistic, oblique, MHD","authors_text":"Errol J. Summerlin, Matthew G. Baring","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-10-06T18:51:20Z","title":"Particle Acceleration at Relativistic Shocks in Extragalactic Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.1072","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:aa5c339f59b070fa18670ad11527e715788a7e982a9c9240a3dcfd1bfefcfca8","target":"record","created_at":"2026-05-18T02:34:19Z","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":"a68fe7bc0bc60745e6f2280ff18d8ebea924db6289441ce8ea45270042a88d76","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-10-06T18:51:20Z","title_canon_sha256":"eee5a0d3cd989a0ffe9806551d047c06cfe57d417c3a65d3bdb606970babe7fa"},"schema_version":"1.0","source":{"id":"0910.1072","kind":"arxiv","version":1}},"canonical_sha256":"f611979cf6115ba094d9966d7cfe1212fae7a34c2334e2b7ba273752994b0b57","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f611979cf6115ba094d9966d7cfe1212fae7a34c2334e2b7ba273752994b0b57","first_computed_at":"2026-05-18T02:34:19.967329Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:19.967329Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lhdUTIbXd+k4K33R7XfCuB5ZknaUl1uSDWvManVYDsDXuA5T8YqqmIBWMOGK0vKtVk71q959wm8K86WOPAPwAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:19.967828Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.1072","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa5c339f59b070fa18670ad11527e715788a7e982a9c9240a3dcfd1bfefcfca8","sha256:0d1546de2c9664958357dfc2a2e1bdf279bbcb48f4c9c488b596fddf905c8ff0"],"state_sha256":"25cdfb666091c769aa6e8486cdf86f41a35f9f47e71ebb5d58a6255f3ff88b39"}