{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4QHTSIHHUEGDSLI7RA77CCB7MG","short_pith_number":"pith:4QHTSIHH","canonical_record":{"source":{"id":"1306.5169","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T15:24:45Z","cross_cats_sorted":[],"title_canon_sha256":"500e34fe833ea3e6a6bac584fe6438d64cf76d9e3e915f30250277242caa1f40","abstract_canon_sha256":"12b14404124ee1aab6b97e871d929ac3b53f59bba28c431978c143aa9db71de7"},"schema_version":"1.0"},"canonical_sha256":"e40f3920e7a10c392d1f883ff1083f61b46c7bca4153774cb3d43cefbf77ac09","source":{"kind":"arxiv","id":"1306.5169","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5169","created_at":"2026-05-18T03:19:58Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5169v2","created_at":"2026-05-18T03:19:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5169","created_at":"2026-05-18T03:19:58Z"},{"alias_kind":"pith_short_12","alias_value":"4QHTSIHHUEGD","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4QHTSIHHUEGDSLI7","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4QHTSIHH","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4QHTSIHHUEGDSLI7RA77CCB7MG","target":"record","payload":{"canonical_record":{"source":{"id":"1306.5169","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T15:24:45Z","cross_cats_sorted":[],"title_canon_sha256":"500e34fe833ea3e6a6bac584fe6438d64cf76d9e3e915f30250277242caa1f40","abstract_canon_sha256":"12b14404124ee1aab6b97e871d929ac3b53f59bba28c431978c143aa9db71de7"},"schema_version":"1.0"},"canonical_sha256":"e40f3920e7a10c392d1f883ff1083f61b46c7bca4153774cb3d43cefbf77ac09","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:58.677433Z","signature_b64":"MCAjisywaBwZGk9CP7aUC+4T338/H2wTjsVnq+UepgQEx7pccYd+uh/3CywlRxhjulrMoqlrpazFwGOUYpGaBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e40f3920e7a10c392d1f883ff1083f61b46c7bca4153774cb3d43cefbf77ac09","last_reissued_at":"2026-05-18T03:19:58.676918Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:58.676918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.5169","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":"2026-05-18T03:19:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ff1Tqd43l+kJmB4Hy8gZ2tfPv5nYjxurG26ntrtDU0k/ISONdpKmXNYHpzDpBmJ7XlEyp5FO4X1qOg1gLdpyBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:42:38.065665Z"},"content_sha256":"e9d1b83422b68cf238e8c53b2052afa4a2712b1a1936ed87ab73b7a0707c0135","schema_version":"1.0","event_id":"sha256:e9d1b83422b68cf238e8c53b2052afa4a2712b1a1936ed87ab73b7a0707c0135"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4QHTSIHHUEGDSLI7RA77CCB7MG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hard light meson production in (anti)proton-hadron collisions and charge-echange reactions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"E. A. Kuraev, E. S. Kokoulina, E. Tomasi-Gustafsson","submitted_at":"2013-06-21T15:24:45Z","abstract_excerpt":"An extension of the QED 'return to resonance' mechanism to light meson emission ($\\pi$, $\\rho$) in (anti)proton collisions with a hadronic target (nucleon or nucleus) is proposed. The cross section and the multiplicity distributions are calculated. The collinear emission (along the beam direction) of a charged meson may be used to produce high energy (anti)neutron beams. Possible applications at existing and planned facilities are considered."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5169","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":"2026-05-18T03:19:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fHoEFVsRr91BGHL+pF3Hk0W4Ryz+Y/BYxfY2uH5e8ZdLkOYCi/QwRg8+VAhF/87+2uadEiYkKaFZzjoYJwa3Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:42:38.066160Z"},"content_sha256":"ed94adae5f9ecd597f7dda08efa06fcc4a62ef9533e44cf395313da192049a50","schema_version":"1.0","event_id":"sha256:ed94adae5f9ecd597f7dda08efa06fcc4a62ef9533e44cf395313da192049a50"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4QHTSIHHUEGDSLI7RA77CCB7MG/bundle.json","state_url":"https://pith.science/pith/4QHTSIHHUEGDSLI7RA77CCB7MG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4QHTSIHHUEGDSLI7RA77CCB7MG/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":"2026-05-26T15:42:38Z","links":{"resolver":"https://pith.science/pith/4QHTSIHHUEGDSLI7RA77CCB7MG","bundle":"https://pith.science/pith/4QHTSIHHUEGDSLI7RA77CCB7MG/bundle.json","state":"https://pith.science/pith/4QHTSIHHUEGDSLI7RA77CCB7MG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4QHTSIHHUEGDSLI7RA77CCB7MG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4QHTSIHHUEGDSLI7RA77CCB7MG","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":"12b14404124ee1aab6b97e871d929ac3b53f59bba28c431978c143aa9db71de7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T15:24:45Z","title_canon_sha256":"500e34fe833ea3e6a6bac584fe6438d64cf76d9e3e915f30250277242caa1f40"},"schema_version":"1.0","source":{"id":"1306.5169","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5169","created_at":"2026-05-18T03:19:58Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5169v2","created_at":"2026-05-18T03:19:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5169","created_at":"2026-05-18T03:19:58Z"},{"alias_kind":"pith_short_12","alias_value":"4QHTSIHHUEGD","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4QHTSIHHUEGDSLI7","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4QHTSIHH","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:ed94adae5f9ecd597f7dda08efa06fcc4a62ef9533e44cf395313da192049a50","target":"graph","created_at":"2026-05-18T03:19:58Z","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":"An extension of the QED 'return to resonance' mechanism to light meson emission ($\\pi$, $\\rho$) in (anti)proton collisions with a hadronic target (nucleon or nucleus) is proposed. The cross section and the multiplicity distributions are calculated. The collinear emission (along the beam direction) of a charged meson may be used to produce high energy (anti)neutron beams. Possible applications at existing and planned facilities are considered.","authors_text":"E. A. Kuraev, E. S. Kokoulina, E. Tomasi-Gustafsson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T15:24:45Z","title":"Hard light meson production in (anti)proton-hadron collisions and charge-echange reactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5169","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:e9d1b83422b68cf238e8c53b2052afa4a2712b1a1936ed87ab73b7a0707c0135","target":"record","created_at":"2026-05-18T03:19:58Z","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":"12b14404124ee1aab6b97e871d929ac3b53f59bba28c431978c143aa9db71de7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T15:24:45Z","title_canon_sha256":"500e34fe833ea3e6a6bac584fe6438d64cf76d9e3e915f30250277242caa1f40"},"schema_version":"1.0","source":{"id":"1306.5169","kind":"arxiv","version":2}},"canonical_sha256":"e40f3920e7a10c392d1f883ff1083f61b46c7bca4153774cb3d43cefbf77ac09","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e40f3920e7a10c392d1f883ff1083f61b46c7bca4153774cb3d43cefbf77ac09","first_computed_at":"2026-05-18T03:19:58.676918Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:19:58.676918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MCAjisywaBwZGk9CP7aUC+4T338/H2wTjsVnq+UepgQEx7pccYd+uh/3CywlRxhjulrMoqlrpazFwGOUYpGaBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:19:58.677433Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.5169","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e9d1b83422b68cf238e8c53b2052afa4a2712b1a1936ed87ab73b7a0707c0135","sha256:ed94adae5f9ecd597f7dda08efa06fcc4a62ef9533e44cf395313da192049a50"],"state_sha256":"c44fc924cbb81d0f615ff0f8288e427861a031b2b84fb4013c0d08a649eec6cf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MEBotq7rJYnAKw8ObEf27FcQbGHSmm1Bn6RJRthlgdZ7MiGKQugI+E45cQSYAkiz15W13b98UUyUWIz2R2m7Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T15:42:38.068533Z","bundle_sha256":"d5b3054185e88386a9b678df72b31cbf7b2b95305122abcae5ef9c4f85d8661b"}}