{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:SH7KCIOI22LW3CCSQJ4SM76QUP","short_pith_number":"pith:SH7KCIOI","canonical_record":{"source":{"id":"hep-ph/0101087","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2001-01-09T21:04:54Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"0aa589d9af215664691d3db401edd64f4502f598e59b50e83e0f8c5d9837eb5d","abstract_canon_sha256":"cde05400c7cf63e1cf0d932b72e73ea82db29e66afa5fbbd126525c8dd2a3e7a"},"schema_version":"1.0"},"canonical_sha256":"91fea121c8d6976d88528279267fd0a3fcadd4c9ee8de9a9fe4fed777eff233a","source":{"kind":"arxiv","id":"hep-ph/0101087","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0101087","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0101087v4","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0101087","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"pith_short_12","alias_value":"SH7KCIOI22LW","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"pith_short_16","alias_value":"SH7KCIOI22LW3CCS","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"pith_short_8","alias_value":"SH7KCIOI","created_at":"2026-07-04T16:27:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:SH7KCIOI22LW3CCSQJ4SM76QUP","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0101087","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2001-01-09T21:04:54Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"0aa589d9af215664691d3db401edd64f4502f598e59b50e83e0f8c5d9837eb5d","abstract_canon_sha256":"cde05400c7cf63e1cf0d932b72e73ea82db29e66afa5fbbd126525c8dd2a3e7a"},"schema_version":"1.0"},"canonical_sha256":"91fea121c8d6976d88528279267fd0a3fcadd4c9ee8de9a9fe4fed777eff233a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:27:10.986812Z","signature_b64":"tJylOCOWi5x5UUx8gIYznem427bjFi5Pvr6r3KC3mGDt1qonjilCc1Q1bvyaf99hJ5iKQlHjX2QcGc+YW0UCAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91fea121c8d6976d88528279267fd0a3fcadd4c9ee8de9a9fe4fed777eff233a","last_reissued_at":"2026-07-04T16:27:10.986431Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:27:10.986431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0101087","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:27:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b47HyMDUQl39MgB7iR+ydZoSQEQ+0CQYy+7McGgwbUEd0jKd9gBHaFVb8MSXWwMZy9C6QZVETcgbkDL8iBD5Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T18:59:11.760919Z"},"content_sha256":"485a61f7ed5c982fa7d273beee490636d1207935822e85bb117c4f75609d7e96","schema_version":"1.0","event_id":"sha256:485a61f7ed5c982fa7d273beee490636d1207935822e85bb117c4f75609d7e96"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:SH7KCIOI22LW3CCSQJ4SM76QUP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Causality and CPT violation from an Abelian Chern-Simons-like term","license":"","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"C. Adam, F.R. Klinkhamer","submitted_at":"2001-01-09T21:04:54Z","abstract_excerpt":"We study a class of generalized Abelian gauge field theories where CPT symmetry is violated by a Chern-Simons-like term which selects a preferred direction in spacetime. Such Chern-Simons-like terms may either emerge as part of the low-energy effective action of a more fundamental theory or be produced by chiral anomalies over a nonsimply connected spacetime manifold. Specifically, we investigate the issues of unitarity and causality. We find that the behaviour of these gauge field theories depends on whether the preferred direction is spacelike or timelike. For a purely spacelike preferred di"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0101087","kind":"arxiv","version":4},"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/hep-ph/0101087/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":"2026-07-04T16:27:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C+LE8noaI7K4cCKWupkmXuO9olixxpWifs0iHY4oBFPik6psmT30DwNYZvb4XobOStNqa+rVJZeJvfXHIAZZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T18:59:11.761673Z"},"content_sha256":"44e8f525125352f0a85a5875f79ff01217ed0ed09724c80f350ef2cc43b5e291","schema_version":"1.0","event_id":"sha256:44e8f525125352f0a85a5875f79ff01217ed0ed09724c80f350ef2cc43b5e291"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SH7KCIOI22LW3CCSQJ4SM76QUP/bundle.json","state_url":"https://pith.science/pith/SH7KCIOI22LW3CCSQJ4SM76QUP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SH7KCIOI22LW3CCSQJ4SM76QUP/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":"2026-08-09T18:59:11Z","links":{"resolver":"https://pith.science/pith/SH7KCIOI22LW3CCSQJ4SM76QUP","bundle":"https://pith.science/pith/SH7KCIOI22LW3CCSQJ4SM76QUP/bundle.json","state":"https://pith.science/pith/SH7KCIOI22LW3CCSQJ4SM76QUP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SH7KCIOI22LW3CCSQJ4SM76QUP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:SH7KCIOI22LW3CCSQJ4SM76QUP","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":"cde05400c7cf63e1cf0d932b72e73ea82db29e66afa5fbbd126525c8dd2a3e7a","cross_cats_sorted":["hep-th"],"license":"","primary_cat":"hep-ph","submitted_at":"2001-01-09T21:04:54Z","title_canon_sha256":"0aa589d9af215664691d3db401edd64f4502f598e59b50e83e0f8c5d9837eb5d"},"schema_version":"1.0","source":{"id":"hep-ph/0101087","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0101087","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0101087v4","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0101087","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"pith_short_12","alias_value":"SH7KCIOI22LW","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"pith_short_16","alias_value":"SH7KCIOI22LW3CCS","created_at":"2026-07-04T16:27:10Z"},{"alias_kind":"pith_short_8","alias_value":"SH7KCIOI","created_at":"2026-07-04T16:27:10Z"}],"graph_snapshots":[{"event_id":"sha256:44e8f525125352f0a85a5875f79ff01217ed0ed09724c80f350ef2cc43b5e291","target":"graph","created_at":"2026-07-04T16:27:10Z","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/hep-ph/0101087/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study a class of generalized Abelian gauge field theories where CPT symmetry is violated by a Chern-Simons-like term which selects a preferred direction in spacetime. Such Chern-Simons-like terms may either emerge as part of the low-energy effective action of a more fundamental theory or be produced by chiral anomalies over a nonsimply connected spacetime manifold. Specifically, we investigate the issues of unitarity and causality. We find that the behaviour of these gauge field theories depends on whether the preferred direction is spacelike or timelike. For a purely spacelike preferred di","authors_text":"C. Adam, F.R. Klinkhamer","cross_cats":["hep-th"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2001-01-09T21:04:54Z","title":"Causality and CPT violation from an Abelian Chern-Simons-like term"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0101087","kind":"arxiv","version":4},"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":"sha256:485a61f7ed5c982fa7d273beee490636d1207935822e85bb117c4f75609d7e96","target":"record","created_at":"2026-07-04T16:27:10Z","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":"cde05400c7cf63e1cf0d932b72e73ea82db29e66afa5fbbd126525c8dd2a3e7a","cross_cats_sorted":["hep-th"],"license":"","primary_cat":"hep-ph","submitted_at":"2001-01-09T21:04:54Z","title_canon_sha256":"0aa589d9af215664691d3db401edd64f4502f598e59b50e83e0f8c5d9837eb5d"},"schema_version":"1.0","source":{"id":"hep-ph/0101087","kind":"arxiv","version":4}},"canonical_sha256":"91fea121c8d6976d88528279267fd0a3fcadd4c9ee8de9a9fe4fed777eff233a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91fea121c8d6976d88528279267fd0a3fcadd4c9ee8de9a9fe4fed777eff233a","first_computed_at":"2026-07-04T16:27:10.986431Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:27:10.986431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tJylOCOWi5x5UUx8gIYznem427bjFi5Pvr6r3KC3mGDt1qonjilCc1Q1bvyaf99hJ5iKQlHjX2QcGc+YW0UCAA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:27:10.986812Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0101087","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:485a61f7ed5c982fa7d273beee490636d1207935822e85bb117c4f75609d7e96","sha256:44e8f525125352f0a85a5875f79ff01217ed0ed09724c80f350ef2cc43b5e291"],"state_sha256":"c40065ab55eb6fae8123d557636be42953cbb2ae984774f56a2d078b30df95e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K/JCd+MfwMw/39gtoDKFo3Bz9NReAWwPJKiLOrhgYQHUBEd2VKMQFenDiBLXekEaP5N5RL1F8ajcBa98HBdsCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T18:59:11.766340Z","bundle_sha256":"d942d26db9cbcc6c35c4170057460dfdb20f6c9f6435c62137f11f291d2ea86c"}}