{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:FHNSUCVOABQAMOQ2AW73AFZ5FN","short_pith_number":"pith:FHNSUCVO","canonical_record":{"source":{"id":"1308.2098","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-09T11:58:39Z","cross_cats_sorted":[],"title_canon_sha256":"faea59a5e449605fcee96eecbec57bc052436d440ca33a30b09465df3fe0cd8a","abstract_canon_sha256":"8a2de013b235a47bbadaa529b81e819156b1fca10dcdae2b14247e7c9acef014"},"schema_version":"1.0"},"canonical_sha256":"29db2a0aae0060063a1a05bfb0173d2b5e3eebaf837bcd6b238d952b2c1faee4","source":{"kind":"arxiv","id":"1308.2098","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.2098","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"arxiv_version","alias_value":"1308.2098v1","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.2098","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"pith_short_12","alias_value":"FHNSUCVOABQA","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FHNSUCVOABQAMOQ2","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FHNSUCVO","created_at":"2026-05-18T12:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:FHNSUCVOABQAMOQ2AW73AFZ5FN","target":"record","payload":{"canonical_record":{"source":{"id":"1308.2098","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-09T11:58:39Z","cross_cats_sorted":[],"title_canon_sha256":"faea59a5e449605fcee96eecbec57bc052436d440ca33a30b09465df3fe0cd8a","abstract_canon_sha256":"8a2de013b235a47bbadaa529b81e819156b1fca10dcdae2b14247e7c9acef014"},"schema_version":"1.0"},"canonical_sha256":"29db2a0aae0060063a1a05bfb0173d2b5e3eebaf837bcd6b238d952b2c1faee4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:18.261428Z","signature_b64":"nuRgC1U2uCS7NbCoeEPDJHk3IkBPAVfPFqhhUyOVVlXaotbVBpSN+dqrtF4x2j8L2sttZqtRSEN8d0lfDe5kDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29db2a0aae0060063a1a05bfb0173d2b5e3eebaf837bcd6b238d952b2c1faee4","last_reissued_at":"2026-05-18T03:16:18.260874Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:18.260874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.2098","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:16:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U0rxTYSqqRL4KJJrRsESBNpy6DT9xjpIcSKbKQHTR6xBkSURcpWBQEuYF1Ncutpks44IhzsNC7B7PYXebd5NCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T03:05:25.001104Z"},"content_sha256":"0b77ca2ca4eeb039c25704f1c394c01f1f48532b6c3305a0f25754aef0838245","schema_version":"1.0","event_id":"sha256:0b77ca2ca4eeb039c25704f1c394c01f1f48532b6c3305a0f25754aef0838245"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:FHNSUCVOABQAMOQ2AW73AFZ5FN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Chiavassa, A. Haungs, A. Weindl, B. Fuchs, B. Mitrica, C. Curcio, C. Grupen, C. Morello, D. Fuhrmann, D. Heck, D. Huber, D. Kang, D. Wochele, E. Cantoni, F. Cossavella, F. Di Pierro, F.G. Schroeder, G.C. Trinchero, G. Toma, H. Bozdog, H.J. Gils, H.J. Mathes, H.J. Mayer, H.O. Klages, H. Rebel, H. Schieler, H. Ulrich, I.M. Brancus, J. Bluemer, J.C. Arteaga-Velazquez, J. Engler, J. Milke, J. Oehlschlaeger, J.R. Hoerandel, J. Wochele, J. Zabierowski - KASCADE-Grande Collaboration, K. Bekk, K. Daumiller, K.-H. Kampert, K. Link, M. Bertaina, M. Ludwig, M. Melissas, M. Petcu, M. Roth, N. Palmieri, O. Sima, P. Doll, P. Luczak, R. Engel, R. Glasstetter, S. Ostapchenko, S. Schoo, T. Huege, T. Pierog, V. de Souza, W.D. Apel","submitted_at":"2013-08-09T11:58:39Z","abstract_excerpt":"The KASCADE-Grande experiment, located at KIT-Karlsruhe, Germany, consists of a large scintillator array for measurements of charged particles, N_ch, and of an array of shielded scintillation counters used for muon counting, N_mu. KASCADE-Grande is optimized for cosmic ray measurements in the energy range 10 PeV to 1000 PeV, thereby enabling the verification of a knee in the iron spectrum expected at approximately 100 PeV. Exploring the composition in this energy range is of fundamental importance for understanding the transition from galactic to extragalactic cosmic rays. Following earlier st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.2098","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:16:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1RtiMUk4et3s85csYDvayDgrasJqC9GVh+Z+JHhwSQqe7bBAQKnsAGtueSWNG/TuXTBeR0R7OSbPXrN8BPmoBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T03:05:25.001778Z"},"content_sha256":"378f8f6a3bd3820aa23ad27530a34c50574e040aef14abc2478c90ded3d5a4ce","schema_version":"1.0","event_id":"sha256:378f8f6a3bd3820aa23ad27530a34c50574e040aef14abc2478c90ded3d5a4ce"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FHNSUCVOABQAMOQ2AW73AFZ5FN/bundle.json","state_url":"https://pith.science/pith/FHNSUCVOABQAMOQ2AW73AFZ5FN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FHNSUCVOABQAMOQ2AW73AFZ5FN/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":"2026-05-19T03:05:25Z","links":{"resolver":"https://pith.science/pith/FHNSUCVOABQAMOQ2AW73AFZ5FN","bundle":"https://pith.science/pith/FHNSUCVOABQAMOQ2AW73AFZ5FN/bundle.json","state":"https://pith.science/pith/FHNSUCVOABQAMOQ2AW73AFZ5FN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FHNSUCVOABQAMOQ2AW73AFZ5FN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:FHNSUCVOABQAMOQ2AW73AFZ5FN","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":"8a2de013b235a47bbadaa529b81e819156b1fca10dcdae2b14247e7c9acef014","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-09T11:58:39Z","title_canon_sha256":"faea59a5e449605fcee96eecbec57bc052436d440ca33a30b09465df3fe0cd8a"},"schema_version":"1.0","source":{"id":"1308.2098","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.2098","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"arxiv_version","alias_value":"1308.2098v1","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.2098","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"pith_short_12","alias_value":"FHNSUCVOABQA","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FHNSUCVOABQAMOQ2","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FHNSUCVO","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:378f8f6a3bd3820aa23ad27530a34c50574e040aef14abc2478c90ded3d5a4ce","target":"graph","created_at":"2026-05-18T03:16:18Z","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"},"paper":{"abstract_excerpt":"The KASCADE-Grande experiment, located at KIT-Karlsruhe, Germany, consists of a large scintillator array for measurements of charged particles, N_ch, and of an array of shielded scintillation counters used for muon counting, N_mu. KASCADE-Grande is optimized for cosmic ray measurements in the energy range 10 PeV to 1000 PeV, thereby enabling the verification of a knee in the iron spectrum expected at approximately 100 PeV. Exploring the composition in this energy range is of fundamental importance for understanding the transition from galactic to extragalactic cosmic rays. Following earlier st","authors_text":"A. Chiavassa, A. Haungs, A. Weindl, B. Fuchs, B. Mitrica, C. Curcio, C. Grupen, C. Morello, D. Fuhrmann, D. Heck, D. Huber, D. Kang, D. Wochele, E. Cantoni, F. Cossavella, F. Di Pierro, F.G. Schroeder, G.C. Trinchero, G. Toma, H. Bozdog, H.J. Gils, H.J. Mathes, H.J. Mayer, H.O. Klages, H. Rebel, H. Schieler, H. Ulrich, I.M. Brancus, J. Bluemer, J.C. Arteaga-Velazquez, J. Engler, J. Milke, J. Oehlschlaeger, J.R. Hoerandel, J. Wochele, J. Zabierowski - KASCADE-Grande Collaboration, K. Bekk, K. Daumiller, K.-H. Kampert, K. Link, M. Bertaina, M. Ludwig, M. Melissas, M. Petcu, M. Roth, N. Palmieri, O. Sima, P. Doll, P. Luczak, R. Engel, R. Glasstetter, S. Ostapchenko, S. Schoo, T. Huege, T. Pierog, V. de Souza, W.D. Apel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-09T11:58:39Z","title":"KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.2098","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":"sha256:0b77ca2ca4eeb039c25704f1c394c01f1f48532b6c3305a0f25754aef0838245","target":"record","created_at":"2026-05-18T03:16:18Z","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":"8a2de013b235a47bbadaa529b81e819156b1fca10dcdae2b14247e7c9acef014","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-09T11:58:39Z","title_canon_sha256":"faea59a5e449605fcee96eecbec57bc052436d440ca33a30b09465df3fe0cd8a"},"schema_version":"1.0","source":{"id":"1308.2098","kind":"arxiv","version":1}},"canonical_sha256":"29db2a0aae0060063a1a05bfb0173d2b5e3eebaf837bcd6b238d952b2c1faee4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29db2a0aae0060063a1a05bfb0173d2b5e3eebaf837bcd6b238d952b2c1faee4","first_computed_at":"2026-05-18T03:16:18.260874Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:18.260874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nuRgC1U2uCS7NbCoeEPDJHk3IkBPAVfPFqhhUyOVVlXaotbVBpSN+dqrtF4x2j8L2sttZqtRSEN8d0lfDe5kDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:18.261428Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.2098","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b77ca2ca4eeb039c25704f1c394c01f1f48532b6c3305a0f25754aef0838245","sha256:378f8f6a3bd3820aa23ad27530a34c50574e040aef14abc2478c90ded3d5a4ce"],"state_sha256":"66c0fa9a9a969a71bb66680834654d80709aab3cd5cbf867c9c936ea36296a14"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XI89DwJA+4LpuIyq+0UxE440cji12wPKE2ctgIZXGPF3CeK5WtNw2gHDfUu2cbNgXfh3XLqoK6LH26TP6uXzDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T03:05:25.003829Z","bundle_sha256":"3a8b523a353d487c3959403c9512acf4ad1a8192ce31201f7ee976cf6d9b75ad"}}