{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2F7LN3J5BILOLDVFH7FOGWN7KZ","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":"f477811bf970373b6d681e36f21acabd91ed21fc394299717636f8d726e4d970","cross_cats_sorted":["hep-lat","nucl-ex","nucl-th","physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-09-17T18:00:00Z","title_canon_sha256":"7549c571c18e50e96880d89bebb473fa6fd727cba573a72f0af86f964170627a"},"schema_version":"1.0","source":{"id":"1809.06373","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.06373","created_at":"2026-05-17T23:49:17Z"},{"alias_kind":"arxiv_version","alias_value":"1809.06373v2","created_at":"2026-05-17T23:49:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.06373","created_at":"2026-05-17T23:49:17Z"},{"alias_kind":"pith_short_12","alias_value":"2F7LN3J5BILO","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2F7LN3J5BILOLDVF","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2F7LN3J5","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:1959bf1c6b1bc87b2550b27aecb8dd9a6e5e9019791f70821ef5a93af32f5210","target":"graph","created_at":"2026-05-17T23:49:17Z","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 extract the proton charge radius from the elastic form factor (FF) data using a novel theoretical framework combining chiral effective field theory and dispersion analysis. Complex analyticity in the momentum transfer correlates the behavior of the spacelike FF at finite $Q^2$ with the derivative at $Q^2 = 0$. The FF calculated in the predictive theory contains the radius as a free parameter. We determine its value by comparing the predictions with a descriptive global fit of the spacelike FF data, taking into account the theoretical and experimental uncertainties. Our method allows us to u","authors_text":"C. Weiss, D. W. Higinbotham, J. M. Alarc\\'on, Z. Ye","cross_cats":["hep-lat","nucl-ex","nucl-th","physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-09-17T18:00:00Z","title":"Proton charge radius extraction from electron scattering data using dispersively improved chiral effective field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.06373","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":"sha256:9030218b6d096ab753f5816fef31d9bc929ac3245e99d8cebfac6b5beb90f86e","target":"record","created_at":"2026-05-17T23:49:17Z","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":"f477811bf970373b6d681e36f21acabd91ed21fc394299717636f8d726e4d970","cross_cats_sorted":["hep-lat","nucl-ex","nucl-th","physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-09-17T18:00:00Z","title_canon_sha256":"7549c571c18e50e96880d89bebb473fa6fd727cba573a72f0af86f964170627a"},"schema_version":"1.0","source":{"id":"1809.06373","kind":"arxiv","version":2}},"canonical_sha256":"d17eb6ed3d0a16e58ea53fcae359bf56594cde0ca133526bbcffbf5ebb817cd6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d17eb6ed3d0a16e58ea53fcae359bf56594cde0ca133526bbcffbf5ebb817cd6","first_computed_at":"2026-05-17T23:49:17.382702Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:17.382702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qws5YyrAK9JBjTTMLxLR/wMG3pK7ZAOgw8AkX7j0FYXbkgJ8ucSPKsONZR2Uy/D6cVhVKYm7r6upjAceGIH6AA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:17.383475Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.06373","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9030218b6d096ab753f5816fef31d9bc929ac3245e99d8cebfac6b5beb90f86e","sha256:1959bf1c6b1bc87b2550b27aecb8dd9a6e5e9019791f70821ef5a93af32f5210"],"state_sha256":"d79ea1749c0edd9d09fccca963346c06217f01c072cacc04cf3ce086d496180c"}