{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:OSJ7UTCQFEJHZR4WOBGOM6RXWY","short_pith_number":"pith:OSJ7UTCQ","canonical_record":{"source":{"id":"1604.07854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-04-26T20:56:36Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"070495b87ea32c8b7ea2bfefd80d1281f953f48635c1b77f353759ea8905241e","abstract_canon_sha256":"b0912a76e5d62b5bd2c7dc4af31826b56cfb5d143da2f0245e34c049b9bb876b"},"schema_version":"1.0"},"canonical_sha256":"7493fa4c5029127cc796704ce67a37b63e947931ff0518eb1a43170d06ebe77c","source":{"kind":"arxiv","id":"1604.07854","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.07854","created_at":"2026-05-18T00:49:18Z"},{"alias_kind":"arxiv_version","alias_value":"1604.07854v1","created_at":"2026-05-18T00:49:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.07854","created_at":"2026-05-18T00:49:18Z"},{"alias_kind":"pith_short_12","alias_value":"OSJ7UTCQFEJH","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OSJ7UTCQFEJHZR4W","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OSJ7UTCQ","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:OSJ7UTCQFEJHZR4WOBGOM6RXWY","target":"record","payload":{"canonical_record":{"source":{"id":"1604.07854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-04-26T20:56:36Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"070495b87ea32c8b7ea2bfefd80d1281f953f48635c1b77f353759ea8905241e","abstract_canon_sha256":"b0912a76e5d62b5bd2c7dc4af31826b56cfb5d143da2f0245e34c049b9bb876b"},"schema_version":"1.0"},"canonical_sha256":"7493fa4c5029127cc796704ce67a37b63e947931ff0518eb1a43170d06ebe77c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:18.804380Z","signature_b64":"JEmEOvvBIux8Bu2NUh1PJB3AUO4nXwxq5qi1M5XVnU33RATf9G4/F5fMxGXD8YY2ombbG/cSPkpNaN77InmLAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7493fa4c5029127cc796704ce67a37b63e947931ff0518eb1a43170d06ebe77c","last_reissued_at":"2026-05-18T00:49:18.803921Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:18.803921Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.07854","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":"2026-05-18T00:49:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G2eNGnGZalXaG/6qzwR2Rh73njc37pnMmkbqDIKLBc29SXOwhxl7ngrWi/YbL5Egb062EfBdeQdn32HGpyscBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T05:08:43.089463Z"},"content_sha256":"cb9b8c4f9a5f9eba85de6bd47a9e6957ffe07d3c8e83f0015aec4eb5f21ec2ba","schema_version":"1.0","event_id":"sha256:cb9b8c4f9a5f9eba85de6bd47a9e6957ffe07d3c8e83f0015aec4eb5f21ec2ba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:OSJ7UTCQFEJHZR4WOBGOM6RXWY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generalized Dirac duality and CP violation in a two photon theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"A. K. Das, F. Mendez, J. Gamboa, P. Arias","submitted_at":"2016-04-26T20:56:36Z","abstract_excerpt":"A kinetic mixing term, which generalizes the duality symmetry of Dirac, is studied in a theory with two photons (visible and hidden). This theory can be either CP conserving or CP violating depending on the transformation of fields in the hidden sector. However if CP is violated, it necessarily occurs in the hidden sector. This opens up an interesting possibility of new sources of CP violation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.07854","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":"2026-05-18T00:49:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oRGEshD6CFtfqb2w7AITSzJi5UO/MY8+AygmHyZXD7dTAPysgvwzBqdZHPHUxb4ASKUcy4uo2KRqQceJz6m3BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T05:08:43.089932Z"},"content_sha256":"e5f1c237310fd7f3f5ca39dbdf95d8b39c1ca3fdd95f60b3a38f8282874fd7e8","schema_version":"1.0","event_id":"sha256:e5f1c237310fd7f3f5ca39dbdf95d8b39c1ca3fdd95f60b3a38f8282874fd7e8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OSJ7UTCQFEJHZR4WOBGOM6RXWY/bundle.json","state_url":"https://pith.science/pith/OSJ7UTCQFEJHZR4WOBGOM6RXWY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OSJ7UTCQFEJHZR4WOBGOM6RXWY/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":"2026-05-25T05:08:43Z","links":{"resolver":"https://pith.science/pith/OSJ7UTCQFEJHZR4WOBGOM6RXWY","bundle":"https://pith.science/pith/OSJ7UTCQFEJHZR4WOBGOM6RXWY/bundle.json","state":"https://pith.science/pith/OSJ7UTCQFEJHZR4WOBGOM6RXWY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OSJ7UTCQFEJHZR4WOBGOM6RXWY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OSJ7UTCQFEJHZR4WOBGOM6RXWY","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":"b0912a76e5d62b5bd2c7dc4af31826b56cfb5d143da2f0245e34c049b9bb876b","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-04-26T20:56:36Z","title_canon_sha256":"070495b87ea32c8b7ea2bfefd80d1281f953f48635c1b77f353759ea8905241e"},"schema_version":"1.0","source":{"id":"1604.07854","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.07854","created_at":"2026-05-18T00:49:18Z"},{"alias_kind":"arxiv_version","alias_value":"1604.07854v1","created_at":"2026-05-18T00:49:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.07854","created_at":"2026-05-18T00:49:18Z"},{"alias_kind":"pith_short_12","alias_value":"OSJ7UTCQFEJH","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OSJ7UTCQFEJHZR4W","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OSJ7UTCQ","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:e5f1c237310fd7f3f5ca39dbdf95d8b39c1ca3fdd95f60b3a38f8282874fd7e8","target":"graph","created_at":"2026-05-18T00:49:18Z","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":"A kinetic mixing term, which generalizes the duality symmetry of Dirac, is studied in a theory with two photons (visible and hidden). This theory can be either CP conserving or CP violating depending on the transformation of fields in the hidden sector. However if CP is violated, it necessarily occurs in the hidden sector. This opens up an interesting possibility of new sources of CP violation.","authors_text":"A. K. Das, F. Mendez, J. Gamboa, P. Arias","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-04-26T20:56:36Z","title":"Generalized Dirac duality and CP violation in a two photon theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.07854","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:cb9b8c4f9a5f9eba85de6bd47a9e6957ffe07d3c8e83f0015aec4eb5f21ec2ba","target":"record","created_at":"2026-05-18T00:49:18Z","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":"b0912a76e5d62b5bd2c7dc4af31826b56cfb5d143da2f0245e34c049b9bb876b","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-04-26T20:56:36Z","title_canon_sha256":"070495b87ea32c8b7ea2bfefd80d1281f953f48635c1b77f353759ea8905241e"},"schema_version":"1.0","source":{"id":"1604.07854","kind":"arxiv","version":1}},"canonical_sha256":"7493fa4c5029127cc796704ce67a37b63e947931ff0518eb1a43170d06ebe77c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7493fa4c5029127cc796704ce67a37b63e947931ff0518eb1a43170d06ebe77c","first_computed_at":"2026-05-18T00:49:18.803921Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:18.803921Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JEmEOvvBIux8Bu2NUh1PJB3AUO4nXwxq5qi1M5XVnU33RATf9G4/F5fMxGXD8YY2ombbG/cSPkpNaN77InmLAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:18.804380Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.07854","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cb9b8c4f9a5f9eba85de6bd47a9e6957ffe07d3c8e83f0015aec4eb5f21ec2ba","sha256:e5f1c237310fd7f3f5ca39dbdf95d8b39c1ca3fdd95f60b3a38f8282874fd7e8"],"state_sha256":"1b94165298b17892db4a437efabdbd2c6f060e9fb73896d14171239ec2730546"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZLGGWeIWXBN2mXhx4rclICo8jq2hOtfr/dGOAODOaTK5xYawdNi2oqWoDBC5fJSBmxx6m0e9W2jijciqDtj/AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T05:08:43.093142Z","bundle_sha256":"349f8e787b0572144630ca9126c2136b7a068fe81f86cf00216349bcfdedb747"}}