{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ON5KAWBYQBCHJ34JT3RDQDJ757","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":"7b06469e03f50b305948a161e0b7e12dd587e2d802a8641977f3fc07c0562367","cross_cats_sorted":["hep-ex","hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-11-22T19:29:13Z","title_canon_sha256":"4235a60cac221d4ad3432c3300d1e993a1efa89e7ec7d46a6c9ca21038e5da78"},"schema_version":"1.0","source":{"id":"1711.08486","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.08486","created_at":"2026-05-18T00:20:55Z"},{"alias_kind":"arxiv_version","alias_value":"1711.08486v1","created_at":"2026-05-18T00:20:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.08486","created_at":"2026-05-18T00:20:55Z"},{"alias_kind":"pith_short_12","alias_value":"ON5KAWBYQBCH","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"ON5KAWBYQBCHJ34J","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"ON5KAWBY","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:6cfc14e7ae77448acca24ee8ba4e9ef033a788329fe55c9d59d19de23f8d5b6e","target":"graph","created_at":"2026-05-18T00:20:55Z","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 on the first measurement of cross sections for exclusive deeply virtual pion electroproduction off the proton, $e p \\to e^\\prime n \\pi^+$, above the resonance region at backward pion center-of-mass angles. The $\\varphi^*_{\\pi}$-dependent cross sections were measured, from which we extracted three combinations of structure functions of the proton. Our results are compatible with calculations based on nucleon-to-pion transition distribution amplitudes (TDAs) and shed new light on nucleon structure.","authors_text":"B. Pire, J.-M. Laget, K. Park, K. Semenov-Tian-Shansky, M. Guidal, R.W. Gothe","cross_cats":["hep-ex","hep-ph","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-11-22T19:29:13Z","title":"Hard exclusive pion electroproduction at backward angles with CLAS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.08486","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":"sha256:54e6588d3ddb7c883eb421b2df7592bf11e09e52b518c1aa29367c11ab159a04","target":"record","created_at":"2026-05-18T00:20:55Z","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":"7b06469e03f50b305948a161e0b7e12dd587e2d802a8641977f3fc07c0562367","cross_cats_sorted":["hep-ex","hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-11-22T19:29:13Z","title_canon_sha256":"4235a60cac221d4ad3432c3300d1e993a1efa89e7ec7d46a6c9ca21038e5da78"},"schema_version":"1.0","source":{"id":"1711.08486","kind":"arxiv","version":1}},"canonical_sha256":"737aa05838804474ef899ee2380d3fefc92b7a13659bcada3daba74bf1155a60","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"737aa05838804474ef899ee2380d3fefc92b7a13659bcada3daba74bf1155a60","first_computed_at":"2026-05-18T00:20:55.966100Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:55.966100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ylIXGtyZY77lFhr9wcRoi8FRbEF/zX/YDkBa3/iAeOMltSSzV9OItNHctOsQxjGQEyZg9BrjwMjVfCsVL1LvCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:55.966673Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.08486","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54e6588d3ddb7c883eb421b2df7592bf11e09e52b518c1aa29367c11ab159a04","sha256:6cfc14e7ae77448acca24ee8ba4e9ef033a788329fe55c9d59d19de23f8d5b6e"],"state_sha256":"bca081bc8c298466b970c9ab8b52f97653c838b9cc26db3c5398e3dc6db30005"}