{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:SC5EEF7NSGFPMGZL5SXBMHQPQ3","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":"e3275f267c768d7228d4b92439cd165c4f20a875266f892f7ee992cd7074b80e","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-01-16T15:19:27Z","title_canon_sha256":"b816f1b1e989df3de11a7191db0b49899f40ad7a94b1d918e3e7509b79d3c697"},"schema_version":"1.0","source":{"id":"2001.05884","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.05884","created_at":"2026-07-05T02:18:50Z"},{"alias_kind":"arxiv_version","alias_value":"2001.05884v2","created_at":"2026-07-05T02:18:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.05884","created_at":"2026-07-05T02:18:50Z"},{"alias_kind":"pith_short_12","alias_value":"SC5EEF7NSGFP","created_at":"2026-07-05T02:18:50Z"},{"alias_kind":"pith_short_16","alias_value":"SC5EEF7NSGFPMGZL","created_at":"2026-07-05T02:18:50Z"},{"alias_kind":"pith_short_8","alias_value":"SC5EEF7N","created_at":"2026-07-05T02:18:50Z"}],"graph_snapshots":[{"event_id":"sha256:bda88f9d974fe760a6822c1f3596069b845de78f352938c8b1279684599371a9","target":"graph","created_at":"2026-07-05T02:18:50Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2001.05884/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The spectrum of hadrons is important for understanding the confinement of quantum chromodynamics. Many new puzzles arose since 2003 due to the abundance of experimental discoveries with the $XYZ$ structures in the heavy quarkonium mass region being the outstanding examples. Hadronic resonances correspond to poles of the $S$-matrix, which has other types of singularities such as the triangle singularity due to the simultaneous on-shellness of three intermediate particles. Here we briefly discuss a few possible manifestations of triangle singularities in the $XYZ$ physics, paying particular atte","authors_text":"Feng-Kun Guo","cross_cats":["hep-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-01-16T15:19:27Z","title":"Triangle Singularities and Charmonium-like $XYZ$ States"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.05884","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:ddf914fde0563bcba678d1dce54ab7cf5b8202b2e9ed3cac97ed0b49b288e8e2","target":"record","created_at":"2026-07-05T02:18:50Z","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":"e3275f267c768d7228d4b92439cd165c4f20a875266f892f7ee992cd7074b80e","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-01-16T15:19:27Z","title_canon_sha256":"b816f1b1e989df3de11a7191db0b49899f40ad7a94b1d918e3e7509b79d3c697"},"schema_version":"1.0","source":{"id":"2001.05884","kind":"arxiv","version":2}},"canonical_sha256":"90ba4217ed918af61b2becae161e0f86eeec38a37544498467e793ae5254a508","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90ba4217ed918af61b2becae161e0f86eeec38a37544498467e793ae5254a508","first_computed_at":"2026-07-05T02:18:50.454328Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:18:50.454328Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qLizLSXGyhCZgmOh5KtbUmnTlIqqdnMZLSjpdczeReSOVJ1Y4Qn/PcazIj25WllzidiPWuDIGBV1bicY8dI3DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:18:50.454727Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.05884","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ddf914fde0563bcba678d1dce54ab7cf5b8202b2e9ed3cac97ed0b49b288e8e2","sha256:bda88f9d974fe760a6822c1f3596069b845de78f352938c8b1279684599371a9"],"state_sha256":"936ce77a975099f5ab0d9ac234456b1e660bcfb008c73df32fef909a68359289"}