{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:SV7REUWUGIVZOAMD7MBCP2YEFG","short_pith_number":"pith:SV7REUWU","canonical_record":{"source":{"id":"1402.1203","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-02-04T20:07:11Z","cross_cats_sorted":[],"title_canon_sha256":"f99f957bf3a7d67dba286dd8ac04dce5aacc247c772b842f9e49fb39eabe8530","abstract_canon_sha256":"02d7dd62598f5235631710c47c58c143b9f0a99594633300d46a0d0eda80ba53"},"schema_version":"1.0"},"canonical_sha256":"957f1252d4322b970183fb0227eb04298b98d1880c8d15935412590bd440974d","source":{"kind":"arxiv","id":"1402.1203","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.1203","created_at":"2026-05-18T02:23:27Z"},{"alias_kind":"arxiv_version","alias_value":"1402.1203v1","created_at":"2026-05-18T02:23:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.1203","created_at":"2026-05-18T02:23:27Z"},{"alias_kind":"pith_short_12","alias_value":"SV7REUWUGIVZ","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SV7REUWUGIVZOAMD","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SV7REUWU","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:SV7REUWUGIVZOAMD7MBCP2YEFG","target":"record","payload":{"canonical_record":{"source":{"id":"1402.1203","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-02-04T20:07:11Z","cross_cats_sorted":[],"title_canon_sha256":"f99f957bf3a7d67dba286dd8ac04dce5aacc247c772b842f9e49fb39eabe8530","abstract_canon_sha256":"02d7dd62598f5235631710c47c58c143b9f0a99594633300d46a0d0eda80ba53"},"schema_version":"1.0"},"canonical_sha256":"957f1252d4322b970183fb0227eb04298b98d1880c8d15935412590bd440974d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:23:27.300968Z","signature_b64":"w6rvra5csRzkkxGtyCad+GfLEyu/VSnaKVInwP3rYwAuibZJkiepBy38sQDDtPyAyxGt4oFwU6UxP4SlT0ChAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"957f1252d4322b970183fb0227eb04298b98d1880c8d15935412590bd440974d","last_reissued_at":"2026-05-18T02:23:27.299506Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:23:27.299506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.1203","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":"2026-05-18T02:23:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oUGek5HqoaM+45d7t7aJhRgkrCXOYDEMRnFXnsNtzaO5ZdjIA4BHf2W4QyjkFTMTsULtR/59DJgf/ZVWwidKBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:34:28.209632Z"},"content_sha256":"0c063b1119af8c6943860a0e28183de1413ea15bdc71b11ef03c1d48f881263e","schema_version":"1.0","event_id":"sha256:0c063b1119af8c6943860a0e28183de1413ea15bdc71b11ef03c1d48f881263e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:SV7REUWUGIVZOAMD7MBCP2YEFG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On $Z \\to \\gamma \\gamma$ decay and cancellation of axial anomaly in $Z \\to \\gamma \\gamma$ transition amplitude for massive fermions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"E. V. Zhemchugov","submitted_at":"2014-02-04T20:07:11Z","abstract_excerpt":"$Z \\to \\gamma \\gamma$ decay amplitude is considered and proven to be zero due to properties of polarization vectors and Bose statistics. Triangular diagrams for a pseudoscalar $\\to \\gamma \\gamma$ and $Z \\to \\gamma \\gamma$ processes with massive fermions in the loop are explicitely calculated. In the Standard Model axial anomaly vanishes in the sum of these diagrams as Z boson is mixed with one of the Goldstone bosons."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.1203","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":"2026-05-18T02:23:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/7GAVhmEt1vCVihkj72DqmatrOknEUh9u2IaOQeIOqLKfcgUlmeY0yPBGSuPL6fw+fquRvU9fnuN3Bf4EkZNDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:34:28.210374Z"},"content_sha256":"84cbc31659a1510305a547d8548e8b37f00b09a752721f21dc6ad7a77e3efe1e","schema_version":"1.0","event_id":"sha256:84cbc31659a1510305a547d8548e8b37f00b09a752721f21dc6ad7a77e3efe1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SV7REUWUGIVZOAMD7MBCP2YEFG/bundle.json","state_url":"https://pith.science/pith/SV7REUWUGIVZOAMD7MBCP2YEFG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SV7REUWUGIVZOAMD7MBCP2YEFG/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":"2026-05-25T16:34:28Z","links":{"resolver":"https://pith.science/pith/SV7REUWUGIVZOAMD7MBCP2YEFG","bundle":"https://pith.science/pith/SV7REUWUGIVZOAMD7MBCP2YEFG/bundle.json","state":"https://pith.science/pith/SV7REUWUGIVZOAMD7MBCP2YEFG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SV7REUWUGIVZOAMD7MBCP2YEFG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:SV7REUWUGIVZOAMD7MBCP2YEFG","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":"02d7dd62598f5235631710c47c58c143b9f0a99594633300d46a0d0eda80ba53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-02-04T20:07:11Z","title_canon_sha256":"f99f957bf3a7d67dba286dd8ac04dce5aacc247c772b842f9e49fb39eabe8530"},"schema_version":"1.0","source":{"id":"1402.1203","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.1203","created_at":"2026-05-18T02:23:27Z"},{"alias_kind":"arxiv_version","alias_value":"1402.1203v1","created_at":"2026-05-18T02:23:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.1203","created_at":"2026-05-18T02:23:27Z"},{"alias_kind":"pith_short_12","alias_value":"SV7REUWUGIVZ","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SV7REUWUGIVZOAMD","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SV7REUWU","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:84cbc31659a1510305a547d8548e8b37f00b09a752721f21dc6ad7a77e3efe1e","target":"graph","created_at":"2026-05-18T02:23:27Z","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":"$Z \\to \\gamma \\gamma$ decay amplitude is considered and proven to be zero due to properties of polarization vectors and Bose statistics. Triangular diagrams for a pseudoscalar $\\to \\gamma \\gamma$ and $Z \\to \\gamma \\gamma$ processes with massive fermions in the loop are explicitely calculated. In the Standard Model axial anomaly vanishes in the sum of these diagrams as Z boson is mixed with one of the Goldstone bosons.","authors_text":"E. V. Zhemchugov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-02-04T20:07:11Z","title":"On $Z \\to \\gamma \\gamma$ decay and cancellation of axial anomaly in $Z \\to \\gamma \\gamma$ transition amplitude for massive fermions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.1203","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":"sha256:0c063b1119af8c6943860a0e28183de1413ea15bdc71b11ef03c1d48f881263e","target":"record","created_at":"2026-05-18T02:23:27Z","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":"02d7dd62598f5235631710c47c58c143b9f0a99594633300d46a0d0eda80ba53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-02-04T20:07:11Z","title_canon_sha256":"f99f957bf3a7d67dba286dd8ac04dce5aacc247c772b842f9e49fb39eabe8530"},"schema_version":"1.0","source":{"id":"1402.1203","kind":"arxiv","version":1}},"canonical_sha256":"957f1252d4322b970183fb0227eb04298b98d1880c8d15935412590bd440974d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"957f1252d4322b970183fb0227eb04298b98d1880c8d15935412590bd440974d","first_computed_at":"2026-05-18T02:23:27.299506Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:23:27.299506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w6rvra5csRzkkxGtyCad+GfLEyu/VSnaKVInwP3rYwAuibZJkiepBy38sQDDtPyAyxGt4oFwU6UxP4SlT0ChAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:23:27.300968Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.1203","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c063b1119af8c6943860a0e28183de1413ea15bdc71b11ef03c1d48f881263e","sha256:84cbc31659a1510305a547d8548e8b37f00b09a752721f21dc6ad7a77e3efe1e"],"state_sha256":"a9e4161b852177c374f521d3526ae03089bb8ff08864fe5e31a4323268e5f587"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+4iofeCVeRARa08FpMD6I83SO76pf3bsXY1nqpup/KkVYLQWuML26QcXrF1AVrvCAhCcTrRY7frTi6ZJzlgSDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:34:28.214378Z","bundle_sha256":"5eb717124c2c1d4d552c650c16cacd67095357f0c07c3fa95f99f263cc7658f6"}}