{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:PRGLHREF3VJHQXS7OAGM5VPI4Y","short_pith_number":"pith:PRGLHREF","schema_version":"1.0","canonical_sha256":"7c4cb3c485dd52785e5f700cced5e8e60787383cf1da7dbf262c306eaa7d4467","source":{"kind":"arxiv","id":"1004.4249","version":2},"attestation_state":"computed","paper":{"title":"Acceleration of Ultra-High Energy Cosmic Rays in the Colliding Shells of Blazars and GRBs: Constraints from the Fermi Gamma ray Space Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Charles D. Dermer (NRL), Soebur Razzaque (NRL)","submitted_at":"2010-04-24T02:18:39Z","abstract_excerpt":"Fermi Gamma ray Space Telescope measurements of spectra, variability time scale, and maximum photon energy give lower limits to the apparent jet powers and, through gammagamma opacity arguments, the bulk Lorentz factors of relativistic jets. The maximum cosmic-ray particle energy is limited by these two quantities in Fermi acceleration scenarios. Recent data are used to constrain the maximum energies of cosmic-ray protons and Fe nuclei accelerated in colliding shells of GRBs and blazars. The Fermi results indicate that Fe rather than protons are more likely to be accelerated to ultra-high ener"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1004.4249","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-04-24T02:18:39Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7d5fa8a326c25155a1484445001805a8966c0656fdd483e435e32d46496ef635","abstract_canon_sha256":"603bd86e40a27b4321e4578cc1bf56ffeb6d24e4c868270835f9d9fa35d89f70"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:34:27.600657Z","signature_b64":"9YFIK4S4h9Fb4ALhczugoRLKmanYrW+OEPPRVllnazsIi78JPi1xI+rfoZME9DqUiMqHLBHsdFF+mxtnHepkBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c4cb3c485dd52785e5f700cced5e8e60787383cf1da7dbf262c306eaa7d4467","last_reissued_at":"2026-05-18T04:34:27.599944Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:34:27.599944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Acceleration of Ultra-High Energy Cosmic Rays in the Colliding Shells of Blazars and GRBs: Constraints from the Fermi Gamma ray Space Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Charles D. Dermer (NRL), Soebur Razzaque (NRL)","submitted_at":"2010-04-24T02:18:39Z","abstract_excerpt":"Fermi Gamma ray Space Telescope measurements of spectra, variability time scale, and maximum photon energy give lower limits to the apparent jet powers and, through gammagamma opacity arguments, the bulk Lorentz factors of relativistic jets. The maximum cosmic-ray particle energy is limited by these two quantities in Fermi acceleration scenarios. Recent data are used to constrain the maximum energies of cosmic-ray protons and Fe nuclei accelerated in colliding shells of GRBs and blazars. The Fermi results indicate that Fe rather than protons are more likely to be accelerated to ultra-high ener"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.4249","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1004.4249","created_at":"2026-05-18T04:34:27.600052+00:00"},{"alias_kind":"arxiv_version","alias_value":"1004.4249v2","created_at":"2026-05-18T04:34:27.600052+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.4249","created_at":"2026-05-18T04:34:27.600052+00:00"},{"alias_kind":"pith_short_12","alias_value":"PRGLHREF3VJH","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_16","alias_value":"PRGLHREF3VJHQXS7","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_8","alias_value":"PRGLHREF","created_at":"2026-05-18T12:26:12.377268+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PRGLHREF3VJHQXS7OAGM5VPI4Y","json":"https://pith.science/pith/PRGLHREF3VJHQXS7OAGM5VPI4Y.json","graph_json":"https://pith.science/api/pith-number/PRGLHREF3VJHQXS7OAGM5VPI4Y/graph.json","events_json":"https://pith.science/api/pith-number/PRGLHREF3VJHQXS7OAGM5VPI4Y/events.json","paper":"https://pith.science/paper/PRGLHREF"},"agent_actions":{"view_html":"https://pith.science/pith/PRGLHREF3VJHQXS7OAGM5VPI4Y","download_json":"https://pith.science/pith/PRGLHREF3VJHQXS7OAGM5VPI4Y.json","view_paper":"https://pith.science/paper/PRGLHREF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1004.4249&json=true","fetch_graph":"https://pith.science/api/pith-number/PRGLHREF3VJHQXS7OAGM5VPI4Y/graph.json","fetch_events":"https://pith.science/api/pith-number/PRGLHREF3VJHQXS7OAGM5VPI4Y/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PRGLHREF3VJHQXS7OAGM5VPI4Y/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PRGLHREF3VJHQXS7OAGM5VPI4Y/action/storage_attestation","attest_author":"https://pith.science/pith/PRGLHREF3VJHQXS7OAGM5VPI4Y/action/author_attestation","sign_citation":"https://pith.science/pith/PRGLHREF3VJHQXS7OAGM5VPI4Y/action/citation_signature","submit_replication":"https://pith.science/pith/PRGLHREF3VJHQXS7OAGM5VPI4Y/action/replication_record"}},"created_at":"2026-05-18T04:34:27.600052+00:00","updated_at":"2026-05-18T04:34:27.600052+00:00"}