{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:U2X7NJITP2YJ7PIUQ2FYF2BYZB","short_pith_number":"pith:U2X7NJIT","schema_version":"1.0","canonical_sha256":"a6aff6a5137eb09fbd14868b82e838c845df80a0081a80eb250781c35db05e37","source":{"kind":"arxiv","id":"astro-ph/0210049","version":1},"attestation_state":"computed","paper":{"title":"The Enigma of the Highest Energy Particles of Nature","license":"","headline":"","cross_cats":["hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Guenter Sigl (GReCO, Institut d'Astrophysique de Paris)","submitted_at":"2002-10-02T19:48:59Z","abstract_excerpt":"Historically cosmic rays have always been at the intersection of astrophysics with particle physics. This is still and especially true in current days where experimenters routinely observe atmospheric showers from particles whose energies reach macroscopic values up to about 50 Joules. This dwarfs energies achieved in the laboratory by about eight orders of magnitude in the detector frame and three orders of magnitude in the center of mass. While the existence of these highest energy cosmic rays does not necessarily testify physics not yet discovered, their macroscopic energies likely links th"},"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":"astro-ph/0210049","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-10-02T19:48:59Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"67f01dcaafe55dee66b53193348405efb24d53a391038ccd034de061eb6e11ed","abstract_canon_sha256":"d3cbd0e900a0f6f31fdb017cd2e752fcd77119d57aa535586169cfc80f3ccf1e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:30:53.336441Z","signature_b64":"nvkRov/plJNHUY+qqTwixa/3aOeDtRBTmbfh0C8+/YVEuTYko7hl7y4AOW+TZtEe+FadkCZ64rI4dYmkypOECw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6aff6a5137eb09fbd14868b82e838c845df80a0081a80eb250781c35db05e37","last_reissued_at":"2026-07-04T16:30:53.336014Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:30:53.336014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Enigma of the Highest Energy Particles of Nature","license":"","headline":"","cross_cats":["hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Guenter Sigl (GReCO, Institut d'Astrophysique de Paris)","submitted_at":"2002-10-02T19:48:59Z","abstract_excerpt":"Historically cosmic rays have always been at the intersection of astrophysics with particle physics. This is still and especially true in current days where experimenters routinely observe atmospheric showers from particles whose energies reach macroscopic values up to about 50 Joules. This dwarfs energies achieved in the laboratory by about eight orders of magnitude in the detector frame and three orders of magnitude in the center of mass. While the existence of these highest energy cosmic rays does not necessarily testify physics not yet discovered, their macroscopic energies likely links th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0210049","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0210049/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"astro-ph/0210049","created_at":"2026-07-04T16:30:53.336092+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0210049v1","created_at":"2026-07-04T16:30:53.336092+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0210049","created_at":"2026-07-04T16:30:53.336092+00:00"},{"alias_kind":"pith_short_12","alias_value":"U2X7NJITP2YJ","created_at":"2026-07-04T16:30:53.336092+00:00"},{"alias_kind":"pith_short_16","alias_value":"U2X7NJITP2YJ7PIU","created_at":"2026-07-04T16:30:53.336092+00:00"},{"alias_kind":"pith_short_8","alias_value":"U2X7NJIT","created_at":"2026-07-04T16:30:53.336092+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/U2X7NJITP2YJ7PIUQ2FYF2BYZB","json":"https://pith.science/pith/U2X7NJITP2YJ7PIUQ2FYF2BYZB.json","graph_json":"https://pith.science/api/pith-number/U2X7NJITP2YJ7PIUQ2FYF2BYZB/graph.json","events_json":"https://pith.science/api/pith-number/U2X7NJITP2YJ7PIUQ2FYF2BYZB/events.json","paper":"https://pith.science/paper/U2X7NJIT"},"agent_actions":{"view_html":"https://pith.science/pith/U2X7NJITP2YJ7PIUQ2FYF2BYZB","download_json":"https://pith.science/pith/U2X7NJITP2YJ7PIUQ2FYF2BYZB.json","view_paper":"https://pith.science/paper/U2X7NJIT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0210049&json=true","fetch_graph":"https://pith.science/api/pith-number/U2X7NJITP2YJ7PIUQ2FYF2BYZB/graph.json","fetch_events":"https://pith.science/api/pith-number/U2X7NJITP2YJ7PIUQ2FYF2BYZB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U2X7NJITP2YJ7PIUQ2FYF2BYZB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U2X7NJITP2YJ7PIUQ2FYF2BYZB/action/storage_attestation","attest_author":"https://pith.science/pith/U2X7NJITP2YJ7PIUQ2FYF2BYZB/action/author_attestation","sign_citation":"https://pith.science/pith/U2X7NJITP2YJ7PIUQ2FYF2BYZB/action/citation_signature","submit_replication":"https://pith.science/pith/U2X7NJITP2YJ7PIUQ2FYF2BYZB/action/replication_record"}},"created_at":"2026-07-04T16:30:53.336092+00:00","updated_at":"2026-07-04T16:30:53.336092+00:00"}