{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:2BLVAAD3VXW3Z7KLQFFAHYF77X","short_pith_number":"pith:2BLVAAD3","canonical_record":{"source":{"id":"1409.2174","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-09-07T23:31:35Z","cross_cats_sorted":[],"title_canon_sha256":"0f122cdf938bf9b1299e0f2d646e41e5581607d389b90e72cf00ecb249ca4c5d","abstract_canon_sha256":"fcd01643a23a4d40dded492b2ac879af04af7488634ff165a2db5c94289a49c8"},"schema_version":"1.0"},"canonical_sha256":"d05750007badedbcfd4b814a03e0bffde998d81d027a972920484bd6e7fa3cf9","source":{"kind":"arxiv","id":"1409.2174","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.2174","created_at":"2026-05-18T02:43:08Z"},{"alias_kind":"arxiv_version","alias_value":"1409.2174v2","created_at":"2026-05-18T02:43:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.2174","created_at":"2026-05-18T02:43:08Z"},{"alias_kind":"pith_short_12","alias_value":"2BLVAAD3VXW3","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"2BLVAAD3VXW3Z7KL","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"2BLVAAD3","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:2BLVAAD3VXW3Z7KLQFFAHYF77X","target":"record","payload":{"canonical_record":{"source":{"id":"1409.2174","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-09-07T23:31:35Z","cross_cats_sorted":[],"title_canon_sha256":"0f122cdf938bf9b1299e0f2d646e41e5581607d389b90e72cf00ecb249ca4c5d","abstract_canon_sha256":"fcd01643a23a4d40dded492b2ac879af04af7488634ff165a2db5c94289a49c8"},"schema_version":"1.0"},"canonical_sha256":"d05750007badedbcfd4b814a03e0bffde998d81d027a972920484bd6e7fa3cf9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:43:08.852066Z","signature_b64":"El1J6NVJ/51zCzWERC1qNnzibBIi8Uh34Qr0DaN4Z0/fXBXWYKb85NaPy1/hiJOGkISB/x61nmftLuVIBDSEBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d05750007badedbcfd4b814a03e0bffde998d81d027a972920484bd6e7fa3cf9","last_reissued_at":"2026-05-18T02:43:08.851538Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:43:08.851538Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.2174","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":"2026-05-18T02:43:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I9aTXI3Nqgab9Z8DHW3Od/Alq3HkeW4A3xIWuy3LTNSHMF95AGFsoCIwL1CWtSAH6oAfr3zXs6+KOXmrtDUPCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:02:28.504959Z"},"content_sha256":"5949e43dcbb73b9f42714bb6192fa648f1d825be8ae31ab0d11f2e6fdbbf43ee","schema_version":"1.0","event_id":"sha256:5949e43dcbb73b9f42714bb6192fa648f1d825be8ae31ab0d11f2e6fdbbf43ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:2BLVAAD3VXW3Z7KLQFFAHYF77X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lightest pseudoscalar exchange contribution to light-by-light scattering piece of the muon g-2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Adolfo Guevara, Gabriel L\\'opez Castro, Pablo Roig","submitted_at":"2014-09-07T23:31:35Z","abstract_excerpt":"Lightest pseudoscalar (P= pi^0, eta, eta') exchange contribution to the light-by-light (LbL) scattering piece of the muon anomaly, a_mu=(g_mu-2)/2, has been evaluated using a resonance chiral Lagrangian (R\\chi L). Best description of pion transition form-factor (TFF) data is obtained with only tiny violations of one of the relations in the minimal consistent set of short-distance constraints on the anomalous R\\chi L couplings. eta^{(')} TFF, predicted in terms of the pi TFF and the eta-eta^' mixing, are in good agreement with measurements. With this input, we obtain a_mu^{P,LbL} = (10.47\\pm0.5"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.2174","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":"2026-05-18T02:43:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kfMyb0JP7N3CGhX7wuHZ1BdLA7CJP3zVXW83ZAP+WPd5z5PzzErIZMOToJkc4fQx055I0AWAqVJchee6a/IWAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:02:28.505704Z"},"content_sha256":"c0ac4bdc0eb15810f4d5e691e869c62fed37ab1a7a2a0f5e4bf05115d596126e","schema_version":"1.0","event_id":"sha256:c0ac4bdc0eb15810f4d5e691e869c62fed37ab1a7a2a0f5e4bf05115d596126e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2BLVAAD3VXW3Z7KLQFFAHYF77X/bundle.json","state_url":"https://pith.science/pith/2BLVAAD3VXW3Z7KLQFFAHYF77X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2BLVAAD3VXW3Z7KLQFFAHYF77X/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":"2026-05-27T18:02:28Z","links":{"resolver":"https://pith.science/pith/2BLVAAD3VXW3Z7KLQFFAHYF77X","bundle":"https://pith.science/pith/2BLVAAD3VXW3Z7KLQFFAHYF77X/bundle.json","state":"https://pith.science/pith/2BLVAAD3VXW3Z7KLQFFAHYF77X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2BLVAAD3VXW3Z7KLQFFAHYF77X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:2BLVAAD3VXW3Z7KLQFFAHYF77X","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":"fcd01643a23a4d40dded492b2ac879af04af7488634ff165a2db5c94289a49c8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-09-07T23:31:35Z","title_canon_sha256":"0f122cdf938bf9b1299e0f2d646e41e5581607d389b90e72cf00ecb249ca4c5d"},"schema_version":"1.0","source":{"id":"1409.2174","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.2174","created_at":"2026-05-18T02:43:08Z"},{"alias_kind":"arxiv_version","alias_value":"1409.2174v2","created_at":"2026-05-18T02:43:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.2174","created_at":"2026-05-18T02:43:08Z"},{"alias_kind":"pith_short_12","alias_value":"2BLVAAD3VXW3","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"2BLVAAD3VXW3Z7KL","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"2BLVAAD3","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:c0ac4bdc0eb15810f4d5e691e869c62fed37ab1a7a2a0f5e4bf05115d596126e","target":"graph","created_at":"2026-05-18T02:43:08Z","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":"Lightest pseudoscalar (P= pi^0, eta, eta') exchange contribution to the light-by-light (LbL) scattering piece of the muon anomaly, a_mu=(g_mu-2)/2, has been evaluated using a resonance chiral Lagrangian (R\\chi L). Best description of pion transition form-factor (TFF) data is obtained with only tiny violations of one of the relations in the minimal consistent set of short-distance constraints on the anomalous R\\chi L couplings. eta^{(')} TFF, predicted in terms of the pi TFF and the eta-eta^' mixing, are in good agreement with measurements. With this input, we obtain a_mu^{P,LbL} = (10.47\\pm0.5","authors_text":"Adolfo Guevara, Gabriel L\\'opez Castro, Pablo Roig","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-09-07T23:31:35Z","title":"Lightest pseudoscalar exchange contribution to light-by-light scattering piece of the muon g-2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.2174","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":"sha256:5949e43dcbb73b9f42714bb6192fa648f1d825be8ae31ab0d11f2e6fdbbf43ee","target":"record","created_at":"2026-05-18T02:43:08Z","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":"fcd01643a23a4d40dded492b2ac879af04af7488634ff165a2db5c94289a49c8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-09-07T23:31:35Z","title_canon_sha256":"0f122cdf938bf9b1299e0f2d646e41e5581607d389b90e72cf00ecb249ca4c5d"},"schema_version":"1.0","source":{"id":"1409.2174","kind":"arxiv","version":2}},"canonical_sha256":"d05750007badedbcfd4b814a03e0bffde998d81d027a972920484bd6e7fa3cf9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d05750007badedbcfd4b814a03e0bffde998d81d027a972920484bd6e7fa3cf9","first_computed_at":"2026-05-18T02:43:08.851538Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:43:08.851538Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"El1J6NVJ/51zCzWERC1qNnzibBIi8Uh34Qr0DaN4Z0/fXBXWYKb85NaPy1/hiJOGkISB/x61nmftLuVIBDSEBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:43:08.852066Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.2174","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5949e43dcbb73b9f42714bb6192fa648f1d825be8ae31ab0d11f2e6fdbbf43ee","sha256:c0ac4bdc0eb15810f4d5e691e869c62fed37ab1a7a2a0f5e4bf05115d596126e"],"state_sha256":"9dd8d349ae450b7964dc66b68293b6d5ae922f37a1590eb7336e8663ec0d4b86"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dRcf43pIopW/eCssV38XkLP2Xiw7ecvsnNb4kZmh3zbaDykeoYJ2PBKlt00uEAqwjoopJeVBU7GlIjS1AebeDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T18:02:28.509139Z","bundle_sha256":"fbc1f13fece99ca4d810ba7e608dbf5445985de3ea64a23e1f7ef4e2f31cdeea"}}