{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QVDNKYC5QPAK4G3GKZV5U3AX7F","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":"e37a93a7e67c13467047431f42a946ec24811eb6c88c3435d87c3d37ba8c3d70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2013-11-04T16:39:57Z","title_canon_sha256":"53a8fb79f4ae463e8df728e2018103545bfe7ac16737ff72a6078afe0d9fea9d"},"schema_version":"1.0","source":{"id":"1311.0762","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.0762","created_at":"2026-05-18T03:08:04Z"},{"alias_kind":"arxiv_version","alias_value":"1311.0762v1","created_at":"2026-05-18T03:08:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.0762","created_at":"2026-05-18T03:08:04Z"},{"alias_kind":"pith_short_12","alias_value":"QVDNKYC5QPAK","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QVDNKYC5QPAK4G3G","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QVDNKYC5","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:2bf89cfec2ea406c2cb37539963b4f895e29f991fa3afb12a9cadb2624e1ba6e","target":"graph","created_at":"2026-05-18T03:08:04Z","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":"Using $525$ pb$^{-1}$ data collected with the BESIII detector at $e^+e^-$ central-of-mass energy 4.26 GeV, the BESIII Collaboration observed a charged charmoniumlike state $Z_c(3900)\\to\\pi^{\\pm}J/\\psi$ with mass $M[Z_c(3900)]=3899.0\\pm 3.6 \\pm 4.9$ MeV/c$^2$, and width $\\Gamma[Z_c(3900)]=46\\pm 10 \\pm 20$ MeV. The significance of this state was estimated to be $>8\\sigma$ in all kinds of systematic tests. Using $967$ fb$^{-1}$ data recorded by the Belle detector on or near $\\Upsilon(nS)$, n=1, 2, $\\cdots$, 5 resonances, the $e^+e^- \\to \\pi^+\\pi^-J/\\psi$ process has been studied through initial-s","authors_text":"Zhiqing Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2013-11-04T16:39:57Z","title":"Observation of $Z_c(3900)$ both by BESIII and Belle"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.0762","kind":"arxiv","version":1},"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":"sha256:581b52828723e7077d481ab58a10226728d555922788aeb6018b19640bb6e0f8","target":"record","created_at":"2026-05-18T03:08:04Z","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":"e37a93a7e67c13467047431f42a946ec24811eb6c88c3435d87c3d37ba8c3d70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2013-11-04T16:39:57Z","title_canon_sha256":"53a8fb79f4ae463e8df728e2018103545bfe7ac16737ff72a6078afe0d9fea9d"},"schema_version":"1.0","source":{"id":"1311.0762","kind":"arxiv","version":1}},"canonical_sha256":"8546d5605d83c0ae1b66566bda6c17f960860b04bae309561fe40675b85fb9e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8546d5605d83c0ae1b66566bda6c17f960860b04bae309561fe40675b85fb9e7","first_computed_at":"2026-05-18T03:08:04.871996Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:08:04.871996Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xNrvLWOEvrVdlVsL0zoNtgnF0dv5S+9r8N1cVuJIDTYA6L1M1q1R1mmuqJG4vhqHO6tma+JMQiJKykxTHaulBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:08:04.872861Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.0762","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:581b52828723e7077d481ab58a10226728d555922788aeb6018b19640bb6e0f8","sha256:2bf89cfec2ea406c2cb37539963b4f895e29f991fa3afb12a9cadb2624e1ba6e"],"state_sha256":"c59e2f8e61282ccb3cdfd122f20f525a6d18cf29bd1414aa1d350f0459020be8"}