{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:SF5G4LLDT6RR6M2V2FWQ435OKK","short_pith_number":"pith:SF5G4LLD","schema_version":"1.0","canonical_sha256":"917a6e2d639fa31f3355d16d0e6fae529b4a697d8f20c7be627c7cb849625f59","source":{"kind":"arxiv","id":"1109.2940","version":1},"attestation_state":"computed","paper":{"title":"Ultra-high Energy Predictions of Proton-Air Cross Sections from Accelerator Data: an Update","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"M. M. Block","submitted_at":"2011-09-13T21:36:52Z","abstract_excerpt":"At $\\sqrt s = 57\\pm 7$ TeV, the Pierre Auger Observatory (PAO) collaboration has recently measured the proton-air inelastic production cross section $\\sigma_{\\rm p-air}$. Assuming a helium contamination of 25%, they subtracted 30 mb from their measured value, resulting in a p-air inelastic production cross section, $\\sigma_{\\rm p-air}=475 \\pm 22\\ ({\\rm stat.})\\pm^{20}_{15} \\ ({\\rm syst.})$ mb, exclusive of helium contamination. Using this result in a Glauber calculation to obtain the $pp$ inelastic cross section, they found the inelastic $pp$ cross section $\\sigma_{\\rm inel}= 90\\pm 7\\ ({\\rm st"},"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":"1109.2940","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-09-13T21:36:52Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"297d41bd648cc73596d8b7a5208584dfe9c26e277ce265704db045010081d350","abstract_canon_sha256":"a0ca7cb0b983bd51ae961f6b2469bda4f7b8168da353a60a9069ed840f87df0b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:33.293431Z","signature_b64":"+hzyzq3178Vo33yKigO8eIXNexapWGMzcVprUUT+/sTFoDwioFdFA8hNchBiX4lzfs4YoAc6iy1ABwBiuyN/DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"917a6e2d639fa31f3355d16d0e6fae529b4a697d8f20c7be627c7cb849625f59","last_reissued_at":"2026-05-18T02:00:33.292755Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:33.292755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ultra-high Energy Predictions of Proton-Air Cross Sections from Accelerator Data: an Update","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"M. M. Block","submitted_at":"2011-09-13T21:36:52Z","abstract_excerpt":"At $\\sqrt s = 57\\pm 7$ TeV, the Pierre Auger Observatory (PAO) collaboration has recently measured the proton-air inelastic production cross section $\\sigma_{\\rm p-air}$. Assuming a helium contamination of 25%, they subtracted 30 mb from their measured value, resulting in a p-air inelastic production cross section, $\\sigma_{\\rm p-air}=475 \\pm 22\\ ({\\rm stat.})\\pm^{20}_{15} \\ ({\\rm syst.})$ mb, exclusive of helium contamination. Using this result in a Glauber calculation to obtain the $pp$ inelastic cross section, they found the inelastic $pp$ cross section $\\sigma_{\\rm inel}= 90\\pm 7\\ ({\\rm st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.2940","kind":"arxiv","version":1},"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":"1109.2940","created_at":"2026-05-18T02:00:33.292867+00:00"},{"alias_kind":"arxiv_version","alias_value":"1109.2940v1","created_at":"2026-05-18T02:00:33.292867+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.2940","created_at":"2026-05-18T02:00:33.292867+00:00"},{"alias_kind":"pith_short_12","alias_value":"SF5G4LLDT6RR","created_at":"2026-05-18T12:26:41.206345+00:00"},{"alias_kind":"pith_short_16","alias_value":"SF5G4LLDT6RR6M2V","created_at":"2026-05-18T12:26:41.206345+00:00"},{"alias_kind":"pith_short_8","alias_value":"SF5G4LLD","created_at":"2026-05-18T12:26:41.206345+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/SF5G4LLDT6RR6M2V2FWQ435OKK","json":"https://pith.science/pith/SF5G4LLDT6RR6M2V2FWQ435OKK.json","graph_json":"https://pith.science/api/pith-number/SF5G4LLDT6RR6M2V2FWQ435OKK/graph.json","events_json":"https://pith.science/api/pith-number/SF5G4LLDT6RR6M2V2FWQ435OKK/events.json","paper":"https://pith.science/paper/SF5G4LLD"},"agent_actions":{"view_html":"https://pith.science/pith/SF5G4LLDT6RR6M2V2FWQ435OKK","download_json":"https://pith.science/pith/SF5G4LLDT6RR6M2V2FWQ435OKK.json","view_paper":"https://pith.science/paper/SF5G4LLD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1109.2940&json=true","fetch_graph":"https://pith.science/api/pith-number/SF5G4LLDT6RR6M2V2FWQ435OKK/graph.json","fetch_events":"https://pith.science/api/pith-number/SF5G4LLDT6RR6M2V2FWQ435OKK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SF5G4LLDT6RR6M2V2FWQ435OKK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SF5G4LLDT6RR6M2V2FWQ435OKK/action/storage_attestation","attest_author":"https://pith.science/pith/SF5G4LLDT6RR6M2V2FWQ435OKK/action/author_attestation","sign_citation":"https://pith.science/pith/SF5G4LLDT6RR6M2V2FWQ435OKK/action/citation_signature","submit_replication":"https://pith.science/pith/SF5G4LLDT6RR6M2V2FWQ435OKK/action/replication_record"}},"created_at":"2026-05-18T02:00:33.292867+00:00","updated_at":"2026-05-18T02:00:33.292867+00:00"}