{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CQQKBYPDXKWUQKE4KA2M35HEK3","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":"7c68ac8fbeb43c0555a35648b247d265d62a1c3804fea166dfe1bb2e9ce04b83","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-05-12T12:06:27Z","title_canon_sha256":"776b5832c7f5e61fc4b084fabf2060a703549d0706e560085ba9e5bdd3fc8320"},"schema_version":"1.0","source":{"id":"1505.02974","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.02974","created_at":"2026-05-18T01:33:43Z"},{"alias_kind":"arxiv_version","alias_value":"1505.02974v3","created_at":"2026-05-18T01:33:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.02974","created_at":"2026-05-18T01:33:43Z"},{"alias_kind":"pith_short_12","alias_value":"CQQKBYPDXKWU","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"CQQKBYPDXKWUQKE4","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"CQQKBYPD","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:0e506bda06fc71b03099bdd90d7985207da85f3f081bcd79bdcce691143bd8da","target":"graph","created_at":"2026-05-18T01:33:43Z","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":"In this work, a gradual solar energetic particle (SEP) event observed by multispacecraft has been simulated. The time profiles of SEP fluxes accelerated by an interplanetary shock in the three-dimensional interplanetary space are obtained by solving numerically the Fokker-Planck focused transport equation. The interplanetary shock is modeled as a moving source of energetic particles. By fitting the 1979/03/01 SEP fluxes observed by Helios 1, Helios 2, and IMP 8 with our simulations, we obtain the best parameters for the shock acceleration efficiency model. And we also find that the particle pe","authors_text":"G. Qin, Y. Wang","cross_cats":["physics.space-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-05-12T12:06:27Z","title":"Simulations of a gradual solar energetic particle event observed by Helios 1, Helios 2, and IMP 8"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.02974","kind":"arxiv","version":3},"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:ab6fbf359ba6782b187d41e41ae1c70d31cb0c83c911d8496a331d1701828f58","target":"record","created_at":"2026-05-18T01:33:43Z","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":"7c68ac8fbeb43c0555a35648b247d265d62a1c3804fea166dfe1bb2e9ce04b83","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-05-12T12:06:27Z","title_canon_sha256":"776b5832c7f5e61fc4b084fabf2060a703549d0706e560085ba9e5bdd3fc8320"},"schema_version":"1.0","source":{"id":"1505.02974","kind":"arxiv","version":3}},"canonical_sha256":"1420a0e1e3baad48289c5034cdf4e456dd13ba2dcbc508a6422745d13cece156","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1420a0e1e3baad48289c5034cdf4e456dd13ba2dcbc508a6422745d13cece156","first_computed_at":"2026-05-18T01:33:43.307030Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:43.307030Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PBGur24G+WamnhjnBS6mbiYrrI+Tj2PCJFYGlTUKMMztvs0Pb3mH8tork1T33ibu3roLMqVmSMCrShoTKO2RBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:43.307780Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.02974","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab6fbf359ba6782b187d41e41ae1c70d31cb0c83c911d8496a331d1701828f58","sha256:0e506bda06fc71b03099bdd90d7985207da85f3f081bcd79bdcce691143bd8da"],"state_sha256":"d3d07f957c7031c43a23121d003dcbf16c500c57ca60426c5b860f7094863f5c"}