{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:A6PMQSXUSQNR2WY5RPPNYFW2LQ","short_pith_number":"pith:A6PMQSXU","canonical_record":{"source":{"id":"hep-ph/0408151","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2004-08-12T16:30:59Z","cross_cats_sorted":[],"title_canon_sha256":"13769f3b95f43e654107d47687506b71ca15bc3a218601e99439145829e3e6b2","abstract_canon_sha256":"483318f3b2af15dbdd24a641ca6c544c0879581d72f0137f79d37d5f32519b78"},"schema_version":"1.0"},"canonical_sha256":"079ec84af4941b1d5b1d8bdedc16da5c37ff7beb9924b1be85c7ec81d60e5bfe","source":{"kind":"arxiv","id":"hep-ph/0408151","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0408151","created_at":"2026-05-18T01:06:11Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0408151v2","created_at":"2026-05-18T01:06:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0408151","created_at":"2026-05-18T01:06:11Z"},{"alias_kind":"pith_short_12","alias_value":"A6PMQSXUSQNR","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"A6PMQSXUSQNR2WY5","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"A6PMQSXU","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:A6PMQSXUSQNR2WY5RPPNYFW2LQ","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0408151","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2004-08-12T16:30:59Z","cross_cats_sorted":[],"title_canon_sha256":"13769f3b95f43e654107d47687506b71ca15bc3a218601e99439145829e3e6b2","abstract_canon_sha256":"483318f3b2af15dbdd24a641ca6c544c0879581d72f0137f79d37d5f32519b78"},"schema_version":"1.0"},"canonical_sha256":"079ec84af4941b1d5b1d8bdedc16da5c37ff7beb9924b1be85c7ec81d60e5bfe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:11.209978Z","signature_b64":"U2ZFDYTzoJDcP3SESH6cE+Pzt9aWZPXy36aYgON9pkCGngnR6sEt5UNzNp6djlQEXPN5uFSoFx5Mt+bWYfmrBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"079ec84af4941b1d5b1d8bdedc16da5c37ff7beb9924b1be85c7ec81d60e5bfe","last_reissued_at":"2026-05-18T01:06:11.209426Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:11.209426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0408151","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":"2026-05-18T01:06:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rcdVfCkoAPDz5BXkAfsDlIwsAm5Melfo6C6KdhgNjPKjnhBJiZhc+y6hqSijnWsO/b+NyPXBvGbBmzb09HSUBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:07:33.546946Z"},"content_sha256":"716ff4224003929994e36858b9c32db2858510a7bdac97d06ed00b4d21e57f4d","schema_version":"1.0","event_id":"sha256:716ff4224003929994e36858b9c32db2858510a7bdac97d06ed00b4d21e57f4d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:A6PMQSXUSQNR2WY5RPPNYFW2LQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Final-state radiation in electron-positron annihilation into pion pair","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Korchin, G. Pancheri, N. Merenkov, O. Shekhovtsova, S. Dubinsky","submitted_at":"2004-08-12T16:30:59Z","abstract_excerpt":"The process of $e^+ e^-$ annihilation into $\\pi^+ \\pi^-$ pair with radiation of the photon is considered. The amplitude of the reaction $e^+ e^- \\to \\pi^+ \\pi^- \\gamma$ consists of the model independent initial-state radiation (ISR) and model dependent final-state radiation (FSR). The general structure of the FSR tensor is constructed from Lorentz covariance, gauge invariance and discrete symmetries in terms of the three invariant functions. To calculate these functions we apply Chiral Perturbation Theory (ChPT) with vector and axial-vector mesons.\n The contribution of $e^+ e^- \\to \\pi^+ \\pi^-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0408151","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":"2026-05-18T01:06:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RUPrmfXvOmDtH+4B31N+CLzhjTdulMi+QWDnBUgrK5Vc/UU7qZt71d00T45BW9eRHFRNaDzMo0p/Ioh4NlFSCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:07:33.547539Z"},"content_sha256":"4c86e858947df544f834f4306d731a14d24b7148a4457b6f2a6d3559f7b9a71c","schema_version":"1.0","event_id":"sha256:4c86e858947df544f834f4306d731a14d24b7148a4457b6f2a6d3559f7b9a71c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A6PMQSXUSQNR2WY5RPPNYFW2LQ/bundle.json","state_url":"https://pith.science/pith/A6PMQSXUSQNR2WY5RPPNYFW2LQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A6PMQSXUSQNR2WY5RPPNYFW2LQ/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":"2026-05-26T02:07:33Z","links":{"resolver":"https://pith.science/pith/A6PMQSXUSQNR2WY5RPPNYFW2LQ","bundle":"https://pith.science/pith/A6PMQSXUSQNR2WY5RPPNYFW2LQ/bundle.json","state":"https://pith.science/pith/A6PMQSXUSQNR2WY5RPPNYFW2LQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A6PMQSXUSQNR2WY5RPPNYFW2LQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:A6PMQSXUSQNR2WY5RPPNYFW2LQ","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":"483318f3b2af15dbdd24a641ca6c544c0879581d72f0137f79d37d5f32519b78","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2004-08-12T16:30:59Z","title_canon_sha256":"13769f3b95f43e654107d47687506b71ca15bc3a218601e99439145829e3e6b2"},"schema_version":"1.0","source":{"id":"hep-ph/0408151","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0408151","created_at":"2026-05-18T01:06:11Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0408151v2","created_at":"2026-05-18T01:06:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0408151","created_at":"2026-05-18T01:06:11Z"},{"alias_kind":"pith_short_12","alias_value":"A6PMQSXUSQNR","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"A6PMQSXUSQNR2WY5","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"A6PMQSXU","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:4c86e858947df544f834f4306d731a14d24b7148a4457b6f2a6d3559f7b9a71c","target":"graph","created_at":"2026-05-18T01:06:11Z","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 process of $e^+ e^-$ annihilation into $\\pi^+ \\pi^-$ pair with radiation of the photon is considered. The amplitude of the reaction $e^+ e^- \\to \\pi^+ \\pi^- \\gamma$ consists of the model independent initial-state radiation (ISR) and model dependent final-state radiation (FSR). The general structure of the FSR tensor is constructed from Lorentz covariance, gauge invariance and discrete symmetries in terms of the three invariant functions. To calculate these functions we apply Chiral Perturbation Theory (ChPT) with vector and axial-vector mesons.\n The contribution of $e^+ e^- \\to \\pi^+ \\pi^-","authors_text":"A. Korchin, G. Pancheri, N. Merenkov, O. Shekhovtsova, S. Dubinsky","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2004-08-12T16:30:59Z","title":"Final-state radiation in electron-positron annihilation into pion pair"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0408151","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":"sha256:716ff4224003929994e36858b9c32db2858510a7bdac97d06ed00b4d21e57f4d","target":"record","created_at":"2026-05-18T01:06:11Z","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":"483318f3b2af15dbdd24a641ca6c544c0879581d72f0137f79d37d5f32519b78","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2004-08-12T16:30:59Z","title_canon_sha256":"13769f3b95f43e654107d47687506b71ca15bc3a218601e99439145829e3e6b2"},"schema_version":"1.0","source":{"id":"hep-ph/0408151","kind":"arxiv","version":2}},"canonical_sha256":"079ec84af4941b1d5b1d8bdedc16da5c37ff7beb9924b1be85c7ec81d60e5bfe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"079ec84af4941b1d5b1d8bdedc16da5c37ff7beb9924b1be85c7ec81d60e5bfe","first_computed_at":"2026-05-18T01:06:11.209426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:11.209426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U2ZFDYTzoJDcP3SESH6cE+Pzt9aWZPXy36aYgON9pkCGngnR6sEt5UNzNp6djlQEXPN5uFSoFx5Mt+bWYfmrBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:11.209978Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0408151","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:716ff4224003929994e36858b9c32db2858510a7bdac97d06ed00b4d21e57f4d","sha256:4c86e858947df544f834f4306d731a14d24b7148a4457b6f2a6d3559f7b9a71c"],"state_sha256":"3b95988d3f8c596d78ef040059816fff5d3287614022903c4b5c68c7bd412b93"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gDM1b8xuj92mhlWm4dK6wvaqfyB6+kMlnNqD8TEZEYjQyct3xjtBHSbXgBb1gJfXZkCmJTwtNrpzRRVxyJ1mDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T02:07:33.550530Z","bundle_sha256":"3e9cf4afa6f5bee197f3f471f1aca6e1db88a7d8f7c7406ca1c0ed6d5e27740a"}}