{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:GMRZJSHORTDV46PRTOI76OWWDU","short_pith_number":"pith:GMRZJSHO","canonical_record":{"source":{"id":"1412.7077","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-22T18:23:46Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"ce07e2424e0830b657efbcb69e4395e227d170e544c41d56da7e2dfddac1a7ab","abstract_canon_sha256":"7d637a59a79c0dba3fca282266fa6d476c871c809e29abe63fe83ab8e306140f"},"schema_version":"1.0"},"canonical_sha256":"332394c8ee8cc75e79f19b91ff3ad61d0facfd166e0c71bb4e933326b239cebc","source":{"kind":"arxiv","id":"1412.7077","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7077","created_at":"2026-05-18T02:28:04Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7077v2","created_at":"2026-05-18T02:28:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7077","created_at":"2026-05-18T02:28:04Z"},{"alias_kind":"pith_short_12","alias_value":"GMRZJSHORTDV","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GMRZJSHORTDV46PR","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GMRZJSHO","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:GMRZJSHORTDV46PRTOI76OWWDU","target":"record","payload":{"canonical_record":{"source":{"id":"1412.7077","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-22T18:23:46Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"ce07e2424e0830b657efbcb69e4395e227d170e544c41d56da7e2dfddac1a7ab","abstract_canon_sha256":"7d637a59a79c0dba3fca282266fa6d476c871c809e29abe63fe83ab8e306140f"},"schema_version":"1.0"},"canonical_sha256":"332394c8ee8cc75e79f19b91ff3ad61d0facfd166e0c71bb4e933326b239cebc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:28:04.836409Z","signature_b64":"mhOeyVZcYqrW+RYfOKue/YyPdkZpJ1VV/goZuO3Rn39pbC9x2NB9z+Iojmhes87MtO1ZNTFLfvNsbESNzrKRDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"332394c8ee8cc75e79f19b91ff3ad61d0facfd166e0c71bb4e933326b239cebc","last_reissued_at":"2026-05-18T02:28:04.836044Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:28:04.836044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.7077","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":"2026-05-18T02:28:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JTbarhoNNH1cS2MIPuYmR9gVMCsbQsRKsiwm6+cfE5FB+nRTGkumCHSWFf6KKWnVOdT/gDVuoWIp4i47odk2BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T01:15:50.003217Z"},"content_sha256":"6b778398aec1f99fb3349b47301a0fffc4fe843c772c32695fc2522bc6b51ebf","schema_version":"1.0","event_id":"sha256:6b778398aec1f99fb3349b47301a0fffc4fe843c772c32695fc2522bc6b51ebf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:GMRZJSHORTDV46PRTOI76OWWDU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tree level Leptogenesis from Kalb-Ramond Torsion Background","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"hep-ph","authors_text":"M. De Cesare, Nick E. Mavromatos, Sarben Sarkar","submitted_at":"2014-12-22T18:23:46Z","abstract_excerpt":"The effect of torsion in theories of quantum gravity is known to be well described by an axion-like field which couples to matter as well as to gravitation and radiation gauge fields. In this note we consider a particular kind of torsion, arising from the Kalb-Ramond antisymmetric tensor field that appears in the gravitational multiplet of string theory. We investigate the implications for leptogenesis. It is shown that leptogenesis can occur even at tree-level and with only one generation of right-handed Majorana neutrinos, due to CP and CPT violation introduced by the background geometry."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7077","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":""},"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":"2026-05-18T02:28:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5/cmWwv6M+2ASrvjNiNwR4D0eqcaTLsOLU3kRGz7ybVLPU5Hved8UlTiPOOgg94IutgMUJcgHQRY6J5LqQbICw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T01:15:50.003821Z"},"content_sha256":"013ad1f88454c749ddbec322afd79b5088e1b2bf903ab1857f9e2dcced6a76b8","schema_version":"1.0","event_id":"sha256:013ad1f88454c749ddbec322afd79b5088e1b2bf903ab1857f9e2dcced6a76b8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GMRZJSHORTDV46PRTOI76OWWDU/bundle.json","state_url":"https://pith.science/pith/GMRZJSHORTDV46PRTOI76OWWDU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GMRZJSHORTDV46PRTOI76OWWDU/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":"2026-06-08T01:15:50Z","links":{"resolver":"https://pith.science/pith/GMRZJSHORTDV46PRTOI76OWWDU","bundle":"https://pith.science/pith/GMRZJSHORTDV46PRTOI76OWWDU/bundle.json","state":"https://pith.science/pith/GMRZJSHORTDV46PRTOI76OWWDU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GMRZJSHORTDV46PRTOI76OWWDU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:GMRZJSHORTDV46PRTOI76OWWDU","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":"7d637a59a79c0dba3fca282266fa6d476c871c809e29abe63fe83ab8e306140f","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-22T18:23:46Z","title_canon_sha256":"ce07e2424e0830b657efbcb69e4395e227d170e544c41d56da7e2dfddac1a7ab"},"schema_version":"1.0","source":{"id":"1412.7077","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7077","created_at":"2026-05-18T02:28:04Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7077v2","created_at":"2026-05-18T02:28:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7077","created_at":"2026-05-18T02:28:04Z"},{"alias_kind":"pith_short_12","alias_value":"GMRZJSHORTDV","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GMRZJSHORTDV46PR","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GMRZJSHO","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:013ad1f88454c749ddbec322afd79b5088e1b2bf903ab1857f9e2dcced6a76b8","target":"graph","created_at":"2026-05-18T02:28:04Z","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 effect of torsion in theories of quantum gravity is known to be well described by an axion-like field which couples to matter as well as to gravitation and radiation gauge fields. In this note we consider a particular kind of torsion, arising from the Kalb-Ramond antisymmetric tensor field that appears in the gravitational multiplet of string theory. We investigate the implications for leptogenesis. It is shown that leptogenesis can occur even at tree-level and with only one generation of right-handed Majorana neutrinos, due to CP and CPT violation introduced by the background geometry.","authors_text":"M. De Cesare, Nick E. Mavromatos, Sarben Sarkar","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-22T18:23:46Z","title":"Tree level Leptogenesis from Kalb-Ramond Torsion Background"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7077","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":"sha256:6b778398aec1f99fb3349b47301a0fffc4fe843c772c32695fc2522bc6b51ebf","target":"record","created_at":"2026-05-18T02:28:04Z","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":"7d637a59a79c0dba3fca282266fa6d476c871c809e29abe63fe83ab8e306140f","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-22T18:23:46Z","title_canon_sha256":"ce07e2424e0830b657efbcb69e4395e227d170e544c41d56da7e2dfddac1a7ab"},"schema_version":"1.0","source":{"id":"1412.7077","kind":"arxiv","version":2}},"canonical_sha256":"332394c8ee8cc75e79f19b91ff3ad61d0facfd166e0c71bb4e933326b239cebc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"332394c8ee8cc75e79f19b91ff3ad61d0facfd166e0c71bb4e933326b239cebc","first_computed_at":"2026-05-18T02:28:04.836044Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:04.836044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mhOeyVZcYqrW+RYfOKue/YyPdkZpJ1VV/goZuO3Rn39pbC9x2NB9z+Iojmhes87MtO1ZNTFLfvNsbESNzrKRDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:04.836409Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.7077","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b778398aec1f99fb3349b47301a0fffc4fe843c772c32695fc2522bc6b51ebf","sha256:013ad1f88454c749ddbec322afd79b5088e1b2bf903ab1857f9e2dcced6a76b8"],"state_sha256":"d90009c2a0c8ae5e4a48d846ed71631a16b165ac22b8d57af94effea6ed3bd9e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bknmf0F0UBD7QBIKo3fG4NIOyQDi4bGb0QwGU0i5Ame1VI3bKl6LZFPOSDWG9rL6xmTdIZqovT/88htdxzA+DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T01:15:50.007173Z","bundle_sha256":"2c3a24df0d14435c2af0c7fbb1be4a5bc6edf80347d19ee05d933d67a7a40b25"}}