{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:D5EWESVZ4C75OTO5JAHFTSLNED","short_pith_number":"pith:D5EWESVZ","canonical_record":{"source":{"id":"1802.05414","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-15T06:07:58Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"923cb70c2d6b9c2bbd3fbede508e5914cf2d109b3e140db0fa8ef624a1e89ffe","abstract_canon_sha256":"8c06fdbf1a4ebf150f47a40a4cc751dc125edaf02703ca39bdcafaee86cf2092"},"schema_version":"1.0"},"canonical_sha256":"1f49624ab9e0bfd74ddd480e59c96d20dcaff21cd049fcb3f98c409dd6753af5","source":{"kind":"arxiv","id":"1802.05414","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.05414","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"arxiv_version","alias_value":"1802.05414v1","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.05414","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"pith_short_12","alias_value":"D5EWESVZ4C75","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D5EWESVZ4C75OTO5","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D5EWESVZ","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:D5EWESVZ4C75OTO5JAHFTSLNED","target":"record","payload":{"canonical_record":{"source":{"id":"1802.05414","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-15T06:07:58Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"923cb70c2d6b9c2bbd3fbede508e5914cf2d109b3e140db0fa8ef624a1e89ffe","abstract_canon_sha256":"8c06fdbf1a4ebf150f47a40a4cc751dc125edaf02703ca39bdcafaee86cf2092"},"schema_version":"1.0"},"canonical_sha256":"1f49624ab9e0bfd74ddd480e59c96d20dcaff21cd049fcb3f98c409dd6753af5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:05.996058Z","signature_b64":"t171qQMfHIiUVGcI/yKnfpSBdUNykkRdbRbTdAfinny7s0r337seUE15uAOm8NUHLTwlH1loqbeOmXyUzKx7Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f49624ab9e0bfd74ddd480e59c96d20dcaff21cd049fcb3f98c409dd6753af5","last_reissued_at":"2026-05-18T00:21:05.995579Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:05.995579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.05414","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":"2026-05-18T00:21:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9zIW7KfndYCr1O+apyaYC+peM4EylEeCCdbK8rIbukzjrIlFdBUSCA1jMo72Cll/em6P3qFn+OngsgOrqjrRCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T05:29:43.582013Z"},"content_sha256":"8b2ce7018470974ebb3ec2f31d1fd523abc019f6eab070b239d1e5f5709d781a","schema_version":"1.0","event_id":"sha256:8b2ce7018470974ebb3ec2f31d1fd523abc019f6eab070b239d1e5f5709d781a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:D5EWESVZ4C75OTO5JAHFTSLNED","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficiency of Centrifugal Mechanism in Producing PeV Neutrinos From Active Galactic Nuclei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"G. Machabeli, N. Chkheidze, S. Mahajan, Z. Osmanov","submitted_at":"2018-02-15T06:07:58Z","abstract_excerpt":"A several-step theoretical model is constructed to trace the origin of ultra high energy (UHE) $[1-2]$PeV neutrinos detected, recently, by the IceCube collaboration. Protons in the AGN magnetosphere, experiencing different gravitational centrifugal force, provide free energy for the parametric excitation of Langmuir waves via a generalized two-stream instability. Landau damping of these waves, outside the AGN magnetosphere, can accelerate protons to ultra high energies. The ultimate source for this mechanism, the Langmuir-Landau-Centrifugal-Drive (LLCD), is the gravitational energy of the comp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.05414","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":"2026-05-18T00:21:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c1p9bGQX8YafxVj0DlSM3C2l5y2aZcXu+fzxg0ok2+xqx+X0ig267OaA75snOn7dzl3EVSYKl5e+maMCIoX8AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T05:29:43.582387Z"},"content_sha256":"e753c9526f205fa7a6927dd13d5037993257665e752832d3a05f08256ea788ff","schema_version":"1.0","event_id":"sha256:e753c9526f205fa7a6927dd13d5037993257665e752832d3a05f08256ea788ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D5EWESVZ4C75OTO5JAHFTSLNED/bundle.json","state_url":"https://pith.science/pith/D5EWESVZ4C75OTO5JAHFTSLNED/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D5EWESVZ4C75OTO5JAHFTSLNED/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":"2026-06-02T05:29:43Z","links":{"resolver":"https://pith.science/pith/D5EWESVZ4C75OTO5JAHFTSLNED","bundle":"https://pith.science/pith/D5EWESVZ4C75OTO5JAHFTSLNED/bundle.json","state":"https://pith.science/pith/D5EWESVZ4C75OTO5JAHFTSLNED/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D5EWESVZ4C75OTO5JAHFTSLNED/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:D5EWESVZ4C75OTO5JAHFTSLNED","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":"8c06fdbf1a4ebf150f47a40a4cc751dc125edaf02703ca39bdcafaee86cf2092","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-15T06:07:58Z","title_canon_sha256":"923cb70c2d6b9c2bbd3fbede508e5914cf2d109b3e140db0fa8ef624a1e89ffe"},"schema_version":"1.0","source":{"id":"1802.05414","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.05414","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"arxiv_version","alias_value":"1802.05414v1","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.05414","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"pith_short_12","alias_value":"D5EWESVZ4C75","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D5EWESVZ4C75OTO5","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D5EWESVZ","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:e753c9526f205fa7a6927dd13d5037993257665e752832d3a05f08256ea788ff","target":"graph","created_at":"2026-05-18T00:21:05Z","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":"A several-step theoretical model is constructed to trace the origin of ultra high energy (UHE) $[1-2]$PeV neutrinos detected, recently, by the IceCube collaboration. Protons in the AGN magnetosphere, experiencing different gravitational centrifugal force, provide free energy for the parametric excitation of Langmuir waves via a generalized two-stream instability. Landau damping of these waves, outside the AGN magnetosphere, can accelerate protons to ultra high energies. The ultimate source for this mechanism, the Langmuir-Landau-Centrifugal-Drive (LLCD), is the gravitational energy of the comp","authors_text":"G. Machabeli, N. Chkheidze, S. Mahajan, Z. Osmanov","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-15T06:07:58Z","title":"Efficiency of Centrifugal Mechanism in Producing PeV Neutrinos From Active Galactic Nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.05414","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":"sha256:8b2ce7018470974ebb3ec2f31d1fd523abc019f6eab070b239d1e5f5709d781a","target":"record","created_at":"2026-05-18T00:21:05Z","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":"8c06fdbf1a4ebf150f47a40a4cc751dc125edaf02703ca39bdcafaee86cf2092","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-15T06:07:58Z","title_canon_sha256":"923cb70c2d6b9c2bbd3fbede508e5914cf2d109b3e140db0fa8ef624a1e89ffe"},"schema_version":"1.0","source":{"id":"1802.05414","kind":"arxiv","version":1}},"canonical_sha256":"1f49624ab9e0bfd74ddd480e59c96d20dcaff21cd049fcb3f98c409dd6753af5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f49624ab9e0bfd74ddd480e59c96d20dcaff21cd049fcb3f98c409dd6753af5","first_computed_at":"2026-05-18T00:21:05.995579Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:05.995579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t171qQMfHIiUVGcI/yKnfpSBdUNykkRdbRbTdAfinny7s0r337seUE15uAOm8NUHLTwlH1loqbeOmXyUzKx7Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:05.996058Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.05414","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b2ce7018470974ebb3ec2f31d1fd523abc019f6eab070b239d1e5f5709d781a","sha256:e753c9526f205fa7a6927dd13d5037993257665e752832d3a05f08256ea788ff"],"state_sha256":"09d36850ebf370677a55a9e51e1ff99d6da497d4072d569a2e16833bbeb614fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Aj7iX5TTJtmVn5mAN31IdqjKlF3zvbKSdcW45yip972YLHPTsb19qz6C3UJAjc46jGcAu59Ej776JxmKcWXBCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T05:29:43.584444Z","bundle_sha256":"a0ee45694dd7929b37ec62123337ed3dbfa0ad661e76ead52ecbdc43013d708d"}}