{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:PQUL6WWZGJ2U2323F47LZPJYDO","short_pith_number":"pith:PQUL6WWZ","canonical_record":{"source":{"id":"1611.05383","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-11-16T17:46:45Z","cross_cats_sorted":[],"title_canon_sha256":"e17002a85126f83a4e4534d6c443de163a0fb4db5d64f7129dd499783bc6afc1","abstract_canon_sha256":"687ee66604a468f8d0caaa50b0f4cba66e3abb86aa900c780cd243d5d6ce6071"},"schema_version":"1.0"},"canonical_sha256":"7c28bf5ad932754d6f5b2f3ebcbd381b81bcb61823e4f86802ee1def4674bbb5","source":{"kind":"arxiv","id":"1611.05383","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.05383","created_at":"2026-05-18T00:50:18Z"},{"alias_kind":"arxiv_version","alias_value":"1611.05383v2","created_at":"2026-05-18T00:50:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.05383","created_at":"2026-05-18T00:50:18Z"},{"alias_kind":"pith_short_12","alias_value":"PQUL6WWZGJ2U","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"PQUL6WWZGJ2U2323","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"PQUL6WWZ","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:PQUL6WWZGJ2U2323F47LZPJYDO","target":"record","payload":{"canonical_record":{"source":{"id":"1611.05383","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-11-16T17:46:45Z","cross_cats_sorted":[],"title_canon_sha256":"e17002a85126f83a4e4534d6c443de163a0fb4db5d64f7129dd499783bc6afc1","abstract_canon_sha256":"687ee66604a468f8d0caaa50b0f4cba66e3abb86aa900c780cd243d5d6ce6071"},"schema_version":"1.0"},"canonical_sha256":"7c28bf5ad932754d6f5b2f3ebcbd381b81bcb61823e4f86802ee1def4674bbb5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:50:18.155732Z","signature_b64":"PXnwUe9185Mp0yjbNFwZnwjpiqOl4l7jsFQAWuMfqlOXBT3vXMeQupf6G0yW9MgZ2eD0Tq+iLnWDYn4tZ6x1Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c28bf5ad932754d6f5b2f3ebcbd381b81bcb61823e4f86802ee1def4674bbb5","last_reissued_at":"2026-05-18T00:50:18.155227Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:50:18.155227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.05383","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":"2026-05-18T00:50:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zLYK+3GiGCvz0c4INrkhSR08l9B1cewajIS37tJHGRmfaDbtswixGmALNbrWteAAMdsSeKp1JtBfCgFqN5lJAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T14:53:29.524922Z"},"content_sha256":"14e5a621a3966e38dbdd3a114a10042813f97cbcfdca6c29f6079624fcd6635b","schema_version":"1.0","event_id":"sha256:14e5a621a3966e38dbdd3a114a10042813f97cbcfdca6c29f6079624fcd6635b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:PQUL6WWZGJ2U2323F47LZPJYDO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Revising the $f_1(1420)$ resonance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"E. Oset, F. Aceti, V. R. Debastiani, Wei-Hong Liang","submitted_at":"2016-11-16T17:46:45Z","abstract_excerpt":"We have studied the production and decay of the $f_1(1285)$ into $\\pi a_0(980)$ and $K^* \\bar K$ as a function of the mass of the resonance and find a shoulder around 1400 MeV, tied to a triangle singularity, for the $\\pi a_0(980)$ mode, and a peak around 1420 MeV with about 60 MeV width for the $K^* \\bar K$ mode. Both these features agree with the experimental information on which the $f_1(1420)$ resonance is based. In addition, we find that if the $f_1(1420)$ is a genuine resonance, coupling mostly to $K^* \\bar K$ as seen experimentally, one finds unavoidably about a 20\\% fraction for $\\pi a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.05383","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":"2026-05-18T00:50:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qyxiQxXMfq/FJSqy171+0IipP+TyuWRAaXW+Hme76411sBg/m9IrEYHOUTBLAeuQ9RRM7UHamziBwPCI7xY7BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T14:53:29.525276Z"},"content_sha256":"9f95cba511efcfcec859b1ffb2bfc28890c9c5de1afc12bbf81e9a03cccbb297","schema_version":"1.0","event_id":"sha256:9f95cba511efcfcec859b1ffb2bfc28890c9c5de1afc12bbf81e9a03cccbb297"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PQUL6WWZGJ2U2323F47LZPJYDO/bundle.json","state_url":"https://pith.science/pith/PQUL6WWZGJ2U2323F47LZPJYDO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PQUL6WWZGJ2U2323F47LZPJYDO/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":"2026-05-21T14:53:29Z","links":{"resolver":"https://pith.science/pith/PQUL6WWZGJ2U2323F47LZPJYDO","bundle":"https://pith.science/pith/PQUL6WWZGJ2U2323F47LZPJYDO/bundle.json","state":"https://pith.science/pith/PQUL6WWZGJ2U2323F47LZPJYDO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PQUL6WWZGJ2U2323F47LZPJYDO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:PQUL6WWZGJ2U2323F47LZPJYDO","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":"687ee66604a468f8d0caaa50b0f4cba66e3abb86aa900c780cd243d5d6ce6071","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-11-16T17:46:45Z","title_canon_sha256":"e17002a85126f83a4e4534d6c443de163a0fb4db5d64f7129dd499783bc6afc1"},"schema_version":"1.0","source":{"id":"1611.05383","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.05383","created_at":"2026-05-18T00:50:18Z"},{"alias_kind":"arxiv_version","alias_value":"1611.05383v2","created_at":"2026-05-18T00:50:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.05383","created_at":"2026-05-18T00:50:18Z"},{"alias_kind":"pith_short_12","alias_value":"PQUL6WWZGJ2U","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"PQUL6WWZGJ2U2323","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"PQUL6WWZ","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:9f95cba511efcfcec859b1ffb2bfc28890c9c5de1afc12bbf81e9a03cccbb297","target":"graph","created_at":"2026-05-18T00:50:18Z","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":"We have studied the production and decay of the $f_1(1285)$ into $\\pi a_0(980)$ and $K^* \\bar K$ as a function of the mass of the resonance and find a shoulder around 1400 MeV, tied to a triangle singularity, for the $\\pi a_0(980)$ mode, and a peak around 1420 MeV with about 60 MeV width for the $K^* \\bar K$ mode. Both these features agree with the experimental information on which the $f_1(1420)$ resonance is based. In addition, we find that if the $f_1(1420)$ is a genuine resonance, coupling mostly to $K^* \\bar K$ as seen experimentally, one finds unavoidably about a 20\\% fraction for $\\pi a","authors_text":"E. Oset, F. Aceti, V. R. Debastiani, Wei-Hong Liang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-11-16T17:46:45Z","title":"Revising the $f_1(1420)$ resonance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.05383","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":"sha256:14e5a621a3966e38dbdd3a114a10042813f97cbcfdca6c29f6079624fcd6635b","target":"record","created_at":"2026-05-18T00:50:18Z","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":"687ee66604a468f8d0caaa50b0f4cba66e3abb86aa900c780cd243d5d6ce6071","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-11-16T17:46:45Z","title_canon_sha256":"e17002a85126f83a4e4534d6c443de163a0fb4db5d64f7129dd499783bc6afc1"},"schema_version":"1.0","source":{"id":"1611.05383","kind":"arxiv","version":2}},"canonical_sha256":"7c28bf5ad932754d6f5b2f3ebcbd381b81bcb61823e4f86802ee1def4674bbb5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c28bf5ad932754d6f5b2f3ebcbd381b81bcb61823e4f86802ee1def4674bbb5","first_computed_at":"2026-05-18T00:50:18.155227Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:18.155227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PXnwUe9185Mp0yjbNFwZnwjpiqOl4l7jsFQAWuMfqlOXBT3vXMeQupf6G0yW9MgZ2eD0Tq+iLnWDYn4tZ6x1Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:18.155732Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.05383","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14e5a621a3966e38dbdd3a114a10042813f97cbcfdca6c29f6079624fcd6635b","sha256:9f95cba511efcfcec859b1ffb2bfc28890c9c5de1afc12bbf81e9a03cccbb297"],"state_sha256":"29e92492d5674d307aafa00d377e20c3bc0bbe049bb8d71860028b5094cf97f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QUPrLadlrZJP/YH+NPPM+dEl8ac6bt3rOL1Sm1Dw4Da6hQnHTolp7Y8YNjcXRcxkQjeOQjiiWBQYH8aWV9LGAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T14:53:29.528008Z","bundle_sha256":"d5e0912753a8a460f4f2f0ce4a3d8d054f6f45e1a262e7cb117e364d2642e6a7"}}