{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:VDFEK2LPYGINHXTSXYZEFRQNKD","short_pith_number":"pith:VDFEK2LP","canonical_record":{"source":{"id":"2312.08279","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-13T16:53:05Z","cross_cats_sorted":[],"title_canon_sha256":"86f4a4d3f5fe5054bf7cec05c314087f834eb52ac56e33448877cb003cbfd627","abstract_canon_sha256":"947d23662299822cf00793fafc3c866d8bcf95ba2bc49175a7a891dde2253c0e"},"schema_version":"1.0"},"canonical_sha256":"a8ca45696fc190d3de72be3242c60d50e1feec690db689b664d67fb3e63387f4","source":{"kind":"arxiv","id":"2312.08279","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.08279","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"arxiv_version","alias_value":"2312.08279v2","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.08279","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"pith_short_12","alias_value":"VDFEK2LPYGIN","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"pith_short_16","alias_value":"VDFEK2LPYGINHXTS","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"pith_short_8","alias_value":"VDFEK2LP","created_at":"2026-07-05T08:37:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:VDFEK2LPYGINHXTSXYZEFRQNKD","target":"record","payload":{"canonical_record":{"source":{"id":"2312.08279","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-13T16:53:05Z","cross_cats_sorted":[],"title_canon_sha256":"86f4a4d3f5fe5054bf7cec05c314087f834eb52ac56e33448877cb003cbfd627","abstract_canon_sha256":"947d23662299822cf00793fafc3c866d8bcf95ba2bc49175a7a891dde2253c0e"},"schema_version":"1.0"},"canonical_sha256":"a8ca45696fc190d3de72be3242c60d50e1feec690db689b664d67fb3e63387f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:37:16.073546Z","signature_b64":"JMawN3o7ZygthI51rCU4bxjbFLhTD5x5n36ymkuGb8zPEFXeOaQiG5D12YFeDoZoUbxwktxiWBMr6M58c4A2Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a8ca45696fc190d3de72be3242c60d50e1feec690db689b664d67fb3e63387f4","last_reissued_at":"2026-07-05T08:37:16.073059Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:37:16.073059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.08279","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:37:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PBTEjGkotZRzUP7B3XrHOjRK85p+V/m/W5TH7xbz19GtSsdxUamV0MMSteG4RLxDXodIe4a0mGuoe/9/7OKcCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:41:14.989688Z"},"content_sha256":"bb863ef118d665cb1ddf10dc8469ead4c818033c6bfd5a19770f511f0931e4f6","schema_version":"1.0","event_id":"sha256:bb863ef118d665cb1ddf10dc8469ead4c818033c6bfd5a19770f511f0931e4f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:VDFEK2LPYGINHXTSXYZEFRQNKD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Energy spectra of elemental groups of cosmic rays with the KASCADE experiment data and machine learning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"I. A. Plokhikh, M. Yu. Kuznetsov, N. A. Petrov, V. V. Sotnikov","submitted_at":"2023-12-13T16:53:05Z","abstract_excerpt":"We report the reconstruction of the mass component spectra of cosmic rays (protons, helium, carbon, silicon and iron) and their mean mass composition, at energies from 1.4 to 100 PeV. The results are derived from the archival data of the extensive air shower experiment KASCADE. We use a novel machine learning technique developed specifically for this reconstruction, and post-LHC hadronic interaction models: QGSJet-II.04, EPOS-LHC and Sibyll 2.3c. We have found an excess of the proton component and a deficit of intermediate and heavy nuclei components compared to the original KASCADE results. T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.08279","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2312.08279/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:37:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BbNj+y1qnhjJH0UgjFrOFSPrBDWpvQrN4yK133A0PS9gyau+eyyDudpw6Ji4oxaXagrja5PBYLYiiBto0C9IDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:41:14.990645Z"},"content_sha256":"f31b68282a99831cf2e7bb5cca5229b576ecd1f7347f65be7f65c38571aea42b","schema_version":"1.0","event_id":"sha256:f31b68282a99831cf2e7bb5cca5229b576ecd1f7347f65be7f65c38571aea42b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VDFEK2LPYGINHXTSXYZEFRQNKD/bundle.json","state_url":"https://pith.science/pith/VDFEK2LPYGINHXTSXYZEFRQNKD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VDFEK2LPYGINHXTSXYZEFRQNKD/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-04T15:41:15Z","links":{"resolver":"https://pith.science/pith/VDFEK2LPYGINHXTSXYZEFRQNKD","bundle":"https://pith.science/pith/VDFEK2LPYGINHXTSXYZEFRQNKD/bundle.json","state":"https://pith.science/pith/VDFEK2LPYGINHXTSXYZEFRQNKD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VDFEK2LPYGINHXTSXYZEFRQNKD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:VDFEK2LPYGINHXTSXYZEFRQNKD","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":"947d23662299822cf00793fafc3c866d8bcf95ba2bc49175a7a891dde2253c0e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-13T16:53:05Z","title_canon_sha256":"86f4a4d3f5fe5054bf7cec05c314087f834eb52ac56e33448877cb003cbfd627"},"schema_version":"1.0","source":{"id":"2312.08279","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.08279","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"arxiv_version","alias_value":"2312.08279v2","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.08279","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"pith_short_12","alias_value":"VDFEK2LPYGIN","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"pith_short_16","alias_value":"VDFEK2LPYGINHXTS","created_at":"2026-07-05T08:37:16Z"},{"alias_kind":"pith_short_8","alias_value":"VDFEK2LP","created_at":"2026-07-05T08:37:16Z"}],"graph_snapshots":[{"event_id":"sha256:f31b68282a99831cf2e7bb5cca5229b576ecd1f7347f65be7f65c38571aea42b","target":"graph","created_at":"2026-07-05T08:37:16Z","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/2312.08279/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the reconstruction of the mass component spectra of cosmic rays (protons, helium, carbon, silicon and iron) and their mean mass composition, at energies from 1.4 to 100 PeV. The results are derived from the archival data of the extensive air shower experiment KASCADE. We use a novel machine learning technique developed specifically for this reconstruction, and post-LHC hadronic interaction models: QGSJet-II.04, EPOS-LHC and Sibyll 2.3c. We have found an excess of the proton component and a deficit of intermediate and heavy nuclei components compared to the original KASCADE results. T","authors_text":"I. A. Plokhikh, M. Yu. Kuznetsov, N. A. Petrov, V. V. Sotnikov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-13T16:53:05Z","title":"Energy spectra of elemental groups of cosmic rays with the KASCADE experiment data and machine learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.08279","kind":"arxiv","version":2},"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:bb863ef118d665cb1ddf10dc8469ead4c818033c6bfd5a19770f511f0931e4f6","target":"record","created_at":"2026-07-05T08:37:16Z","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":"947d23662299822cf00793fafc3c866d8bcf95ba2bc49175a7a891dde2253c0e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-13T16:53:05Z","title_canon_sha256":"86f4a4d3f5fe5054bf7cec05c314087f834eb52ac56e33448877cb003cbfd627"},"schema_version":"1.0","source":{"id":"2312.08279","kind":"arxiv","version":2}},"canonical_sha256":"a8ca45696fc190d3de72be3242c60d50e1feec690db689b664d67fb3e63387f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a8ca45696fc190d3de72be3242c60d50e1feec690db689b664d67fb3e63387f4","first_computed_at":"2026-07-05T08:37:16.073059Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:37:16.073059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JMawN3o7ZygthI51rCU4bxjbFLhTD5x5n36ymkuGb8zPEFXeOaQiG5D12YFeDoZoUbxwktxiWBMr6M58c4A2Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:37:16.073546Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.08279","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb863ef118d665cb1ddf10dc8469ead4c818033c6bfd5a19770f511f0931e4f6","sha256:f31b68282a99831cf2e7bb5cca5229b576ecd1f7347f65be7f65c38571aea42b"],"state_sha256":"c66856440ac58771e7a87b966102fe65674454f939cfb1965e13b019e0939332"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MM3pS/yOobXVaEmRW+dI5AxAWOcohXa1o7j/n5JIn3iusX5sefY5GRw1Bv7EEsIX2ruqKOTCJwXSbg+CGBzACQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T15:41:15.070645Z","bundle_sha256":"aaaf001cf20b31512a10b3222a5a6c7475347e16415d7943ddb3cf043b9f030e"}}