{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:3TFWS7L43423JTFCC7THC4BRR7","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":"6915b9fa0b1ea8eeeb3da9c51462244b7afb7fc9b06cf727fae3d21dea741f15","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-07-16T20:02:30Z","title_canon_sha256":"3a925c5e940d9b07b6236bfd1347d9987e0221f0004313d0dd5023eea516cc2d"},"schema_version":"1.0","source":{"id":"1307.4411","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.4411","created_at":"2026-05-18T03:08:36Z"},{"alias_kind":"arxiv_version","alias_value":"1307.4411v2","created_at":"2026-05-18T03:08:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.4411","created_at":"2026-05-18T03:08:36Z"},{"alias_kind":"pith_short_12","alias_value":"3TFWS7L43423","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"3TFWS7L43423JTFC","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"3TFWS7L4","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:a5fa9aa35b94a5bda3baccd8c3583ddbfc78b1a4c5fe02f7be199d4c53691164","target":"graph","created_at":"2026-05-18T03:08:36Z","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 report the first observation of the line shape of the $\\Lambda(1405)$ from electroproduction, and show that it is not a simple Breit-Wigner resonance. Electroproduction of $K^+ \\Lambda(1405)$ off the proton was studied by using data from CLAS at Jefferson Lab in the range $1.0<Q^2<3.0$ (GeV/c)$^2$. The analysis utilized the decay channels $\\Sigma^+ \\pi^-$ of the $\\Lambda(1405)$ and $p \\pi^0$ of the $\\Sigma^+$. Neither the standard (PDG) resonance parameters, nor free parameters fitting to a single Breit-Wigner resonance represent the line shape. In our fits, the line shape corresponds appro","authors_text":"CLAS Collaboration, H.Y. Lu, R.A. Schumacher","cross_cats":["hep-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-07-16T20:02:30Z","title":"First Observation of the $\\Lambda(1405)$ Line Shape in Electroproduction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.4411","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:f3077de16b5633081b50d81c5c87832e6d8b1db9a18da5abfd1c570b54242672","target":"record","created_at":"2026-05-18T03:08:36Z","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":"6915b9fa0b1ea8eeeb3da9c51462244b7afb7fc9b06cf727fae3d21dea741f15","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-07-16T20:02:30Z","title_canon_sha256":"3a925c5e940d9b07b6236bfd1347d9987e0221f0004313d0dd5023eea516cc2d"},"schema_version":"1.0","source":{"id":"1307.4411","kind":"arxiv","version":2}},"canonical_sha256":"dccb697d7cdf35b4cca217e67170318ff29fd8a8d080d765adcac2f2bb3693b6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dccb697d7cdf35b4cca217e67170318ff29fd8a8d080d765adcac2f2bb3693b6","first_computed_at":"2026-05-18T03:08:36.667736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:08:36.667736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oSVEgQnt1zGXZVGUNpfr0ge6a0LrIKvPYtk+TTQWEXctsbWecIf9TppTZHFbavur9NTsf0uU3etDhpW+6GY/Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:08:36.668258Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.4411","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3077de16b5633081b50d81c5c87832e6d8b1db9a18da5abfd1c570b54242672","sha256:a5fa9aa35b94a5bda3baccd8c3583ddbfc78b1a4c5fe02f7be199d4c53691164"],"state_sha256":"22c59c2a46ff655b59b83a640409c0ecddaecf5ffd0e5a5f5edbe44608f65ad2"}