{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:XA4YSPBMG3MR32WAII2WYXUPEK","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":"ebb8c2bbbbb6afafd6570b5bab4e53bef89d00cf350410d2c72c6b84ab6b2124","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-13T14:14:24Z","title_canon_sha256":"2cfa56564856a73787c60013d7848a25c93f765bdbac6b24886e826c024acfcb"},"schema_version":"1.0","source":{"id":"1407.3468","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.3468","created_at":"2026-05-18T02:47:42Z"},{"alias_kind":"arxiv_version","alias_value":"1407.3468v1","created_at":"2026-05-18T02:47:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.3468","created_at":"2026-05-18T02:47:42Z"},{"alias_kind":"pith_short_12","alias_value":"XA4YSPBMG3MR","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XA4YSPBMG3MR32WA","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XA4YSPBM","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:f77fe532ae6aedc0b648b304c0f2619dc144c7dc2db3af67d04001b02a3b3cec","target":"graph","created_at":"2026-05-18T02:47:42Z","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 paper, we used the Monte Carlo code CRPropa version 2.0 to simulate the propagation of UHE cosmic rays. In the simulation, uniform cosmic ray sources with spectral indices of {\\alpha} = 1.4, {\\alpha} = 2 and Emax = 1021 eV for pure iron composition at the source position are assumed. We obtained the logarithmic average mass of cosmic rays as a function of energy and compared it with the experimental values in the ankle, and we demonstrated how the mass composition changes before and after the ankle.","authors_text":"Bahare Parvizi, Gohar Rastegarzade","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-13T14:14:24Z","title":"Investigation on mass composition of UHE cosmic rays using CRPropa 2.0"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.3468","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":"sha256:6b0fb7d8d26356d736704217cbc3b34b0a542f6896c1744639e6c227bcba1676","target":"record","created_at":"2026-05-18T02:47:42Z","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":"ebb8c2bbbbb6afafd6570b5bab4e53bef89d00cf350410d2c72c6b84ab6b2124","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-13T14:14:24Z","title_canon_sha256":"2cfa56564856a73787c60013d7848a25c93f765bdbac6b24886e826c024acfcb"},"schema_version":"1.0","source":{"id":"1407.3468","kind":"arxiv","version":1}},"canonical_sha256":"b839893c2c36d91deac042356c5e8f2285316cb11afdd51f1890830538594b15","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b839893c2c36d91deac042356c5e8f2285316cb11afdd51f1890830538594b15","first_computed_at":"2026-05-18T02:47:42.808445Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:42.808445Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"shsPgZatR7RABexVCxcIwkAAk91m7IonxN91sNvsYV6QgqYHebUT6JYIA9NsSkgOAQirbSXckmbR+qa+O8SgCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:42.809276Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.3468","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b0fb7d8d26356d736704217cbc3b34b0a542f6896c1744639e6c227bcba1676","sha256:f77fe532ae6aedc0b648b304c0f2619dc144c7dc2db3af67d04001b02a3b3cec"],"state_sha256":"9093ae3d697f201cf20efb8c1279e802d72b121ca7169c219140efa6da8dfb0a"}