{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:DC7IJT4JRVUVI327AZWPWEM7RQ","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":"4fe8e03b089493e14383a854a29cbdc55caaf95ae7744f5b664ed4760785dc87","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-11-21T02:42:53Z","title_canon_sha256":"d36b58f84604e470f1d02cb177ff58012f59177fdc64fa5407acfaae522e469f"},"schema_version":"1.0","source":{"id":"2411.13793","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.13793","created_at":"2026-07-05T09:38:37Z"},{"alias_kind":"arxiv_version","alias_value":"2411.13793v1","created_at":"2026-07-05T09:38:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.13793","created_at":"2026-07-05T09:38:37Z"},{"alias_kind":"pith_short_12","alias_value":"DC7IJT4JRVUV","created_at":"2026-07-05T09:38:37Z"},{"alias_kind":"pith_short_16","alias_value":"DC7IJT4JRVUVI327","created_at":"2026-07-05T09:38:37Z"},{"alias_kind":"pith_short_8","alias_value":"DC7IJT4J","created_at":"2026-07-05T09:38:37Z"}],"graph_snapshots":[{"event_id":"sha256:55c38b5d162646afbaa62843947119d6146290a58dc2276a3d3559c716beda06","target":"graph","created_at":"2026-07-05T09:38:37Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2411.13793/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The knee-like structure around 4 PeV is the most striking feature in the cosmic ray energy spectrum, whose origin remains enigmatic. We propose a novel concept of the total logarithmic mass energy spectrum to characterize the knee, taking into account LHAASO measurements of the all-particle energy spectrum and the mean logarithmic mass. The predominant role of proton in the knee formation is unearthed. The case of a mass-dependent knee is ruled out with a significance of 22.9${\\sigma}$ and the rigidity-dependent knee feature is revealed. An ankle-like structure stemming from the excess of iron","authors_text":"Cunfeng Feng, Hengying Zhang, Huihai He, Lingling Ma, Qinyi Cheng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-11-21T02:42:53Z","title":"Unveiling the nature of the knee in the cosmic ray energy spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.13793","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:f4c6879b6a8dc22f6c514356a5738496c2e96718c6d68c56b35407a38c5de054","target":"record","created_at":"2026-07-05T09:38:37Z","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":"4fe8e03b089493e14383a854a29cbdc55caaf95ae7744f5b664ed4760785dc87","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-11-21T02:42:53Z","title_canon_sha256":"d36b58f84604e470f1d02cb177ff58012f59177fdc64fa5407acfaae522e469f"},"schema_version":"1.0","source":{"id":"2411.13793","kind":"arxiv","version":1}},"canonical_sha256":"18be84cf898d69546f5f066cfb119f8c139d169613d1a5448e621cf6c24e7dcd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"18be84cf898d69546f5f066cfb119f8c139d169613d1a5448e621cf6c24e7dcd","first_computed_at":"2026-07-05T09:38:37.176904Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:38:37.176904Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YRl5GQTipkgcy+OxJ62jU+9fZzBsuwFERiLWSHc5MBKFVnfnz4Sr0ZXZ+1hqyT7KggCroRyqRKezwzigLjysAA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:38:37.177455Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.13793","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f4c6879b6a8dc22f6c514356a5738496c2e96718c6d68c56b35407a38c5de054","sha256:55c38b5d162646afbaa62843947119d6146290a58dc2276a3d3559c716beda06"],"state_sha256":"5c9903e47f80d0f25116cf98a0b7ccce079ccc112154fd9de8121914d767c13f"}