{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:2VEEI3JDPZC2CIOB7HNNCDCAFF","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":"0ea361024e4a8b966f6db6e69ee888c7f3ba6187ce7a84abc2c7b0d0567dd28f","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-11-29T18:25:12Z","title_canon_sha256":"cb5e8f67145cba4051755c6235369f60c7e78b5394b15fbaa3ee04863639a5a8"},"schema_version":"1.0","source":{"id":"1511.09053","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.09053","created_at":"2026-05-18T00:52:41Z"},{"alias_kind":"arxiv_version","alias_value":"1511.09053v2","created_at":"2026-05-18T00:52:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.09053","created_at":"2026-05-18T00:52:41Z"},{"alias_kind":"pith_short_12","alias_value":"2VEEI3JDPZC2","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_16","alias_value":"2VEEI3JDPZC2CIOB","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_8","alias_value":"2VEEI3JD","created_at":"2026-05-18T12:29:02Z"}],"graph_snapshots":[{"event_id":"sha256:9f280aba05b9424748c8848249af65b6c06d1fad963ebcdb6112c04c842266cc","target":"graph","created_at":"2026-05-18T00:52:41Z","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 recent experimental results of LHCb collaboration suggested the existence of pentaquark states with charmonium. To understand the structure of the states, a dynamical calculation of 5-quark systems with quantum numbers $IJ^P=\\frac{1}{2}(\\frac{1}{2})^\\pm$, $\\frac{1}{2}(\\frac{3}{2})^\\pm$ and $\\frac{1}{2}(\\frac{5}{2})^\\pm$ is performed in the framework of chiral quark model with the help of gaussian expansion method. The results show that the negative parity states can be bound states while all of the positive parity states are the scattering states. The $P_c(4380)$ state is suggested to be t","authors_text":"Gang Yang, Jialun Ping","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-11-29T18:25:12Z","title":"The structure of pentaquarks $P_c^+$ in the chiral quark model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.09053","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":"sha256:158be96f88087778d6f20ddc3827760e2d6b6f1dcf4156e165f0ed24269ef38f","target":"record","created_at":"2026-05-18T00:52:41Z","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":"0ea361024e4a8b966f6db6e69ee888c7f3ba6187ce7a84abc2c7b0d0567dd28f","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-11-29T18:25:12Z","title_canon_sha256":"cb5e8f67145cba4051755c6235369f60c7e78b5394b15fbaa3ee04863639a5a8"},"schema_version":"1.0","source":{"id":"1511.09053","kind":"arxiv","version":2}},"canonical_sha256":"d548446d237e45a121c1f9dad10c4029665870f02592db09aa699cf9f1c903e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d548446d237e45a121c1f9dad10c4029665870f02592db09aa699cf9f1c903e4","first_computed_at":"2026-05-18T00:52:41.985229Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:41.985229Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vyEOmxicaeWnYwnq5NzzLFE35XRPtPpfDjJV640DNsfThfhpXTRZpwLn5hznEJe/ptQW6HkpWyjLcTpaX0QkCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:41.985738Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.09053","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:158be96f88087778d6f20ddc3827760e2d6b6f1dcf4156e165f0ed24269ef38f","sha256:9f280aba05b9424748c8848249af65b6c06d1fad963ebcdb6112c04c842266cc"],"state_sha256":"2b9f4be6cbddc4cef6cec27b0d73a39e3677e3fd9db1d577417bd951850df169"}