{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:CHZAEOJSZNRJO7MGS7BKE46ILX","short_pith_number":"pith:CHZAEOJS","canonical_record":{"source":{"id":"1406.4579","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-06-18T02:58:18Z","cross_cats_sorted":["hep-lat","hep-ph"],"title_canon_sha256":"968ace4dca613deef6e593b51c2d997d6da936f78afce9c70937551241b449ce","abstract_canon_sha256":"88811542edac56ac747eff95bbaa02ad03956c1cd95e310af7ff3ca1f2a93dad"},"schema_version":"1.0"},"canonical_sha256":"11f2023932cb62977d8697c2a273c85ddc8913069c393ed1b20e8de8e8f1695c","source":{"kind":"arxiv","id":"1406.4579","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.4579","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"arxiv_version","alias_value":"1406.4579v1","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.4579","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"pith_short_12","alias_value":"CHZAEOJSZNRJ","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"CHZAEOJSZNRJO7MG","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"CHZAEOJS","created_at":"2026-05-18T12:28:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:CHZAEOJSZNRJO7MGS7BKE46ILX","target":"record","payload":{"canonical_record":{"source":{"id":"1406.4579","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-06-18T02:58:18Z","cross_cats_sorted":["hep-lat","hep-ph"],"title_canon_sha256":"968ace4dca613deef6e593b51c2d997d6da936f78afce9c70937551241b449ce","abstract_canon_sha256":"88811542edac56ac747eff95bbaa02ad03956c1cd95e310af7ff3ca1f2a93dad"},"schema_version":"1.0"},"canonical_sha256":"11f2023932cb62977d8697c2a273c85ddc8913069c393ed1b20e8de8e8f1695c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:47.277684Z","signature_b64":"by+fveh8TBAqbgtrnbTaBdf/Xkh6SR7g6bASGg/C3EUuTxLn8R4I+qnIQVOK7/fVC4/8VoD3CyOvTw2oXxCHBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"11f2023932cb62977d8697c2a273c85ddc8913069c393ed1b20e8de8e8f1695c","last_reissued_at":"2026-05-18T02:25:47.277097Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:47.277097Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1406.4579","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:25:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5Np4gQYbU/OovGvNe9jGUHPKQnlpOmEP/pRp4QTxotkWgE9B9T2oYbJL8UdS90rKoZq9GBNpOG3ohaD/+qRSDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:15:41.443233Z"},"content_sha256":"953e4e5c08334750343c325f8bf26daf512820ee12782deb9d0b8a33f576ca33","schema_version":"1.0","event_id":"sha256:953e4e5c08334750343c325f8bf26daf512820ee12782deb9d0b8a33f576ca33"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:CHZAEOJSZNRJO7MGS7BKE46ILX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electromagnetic Contribution to the Proton-Neutron Mass Splitting","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-lat","hep-ph"],"primary_cat":"nucl-th","authors_text":"A. W. Thomas, R. D. Young, X. G. Wang","submitted_at":"2014-06-18T02:58:18Z","abstract_excerpt":"We study the electromagnetic contribution to the proton-neutron mass splitting by combining lattice simulations and the modified Cottingham sum rule of Walker-Loud, Carlson and Miller. This analysis yields an estimate of the isovector nucleon magnetic polarizability as a function of pion mass. The physical value, obtained by chiral extrapolation to the physical pion mass, is $\\beta_{p-n}=(-1.12 \\pm 0.40)\\times 10^{-4}\\ \\mathrm{fm}^3$, which is in agreement with the empirical result, albeit with a somewhat smaller error. As a result, we find $\\delta M^{\\gamma}_{p-n}=1.04 \\pm 0.11\\ \\mathrm{MeV}$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.4579","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:25:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hFBNxLJOyChM1gXoPk6RFWkdZvB/osL/cd0MCVNosnRI9ou0NiXtRIHK4S8P3CVVbvCwGx9hV6gCQf+0HnAdBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:15:41.443976Z"},"content_sha256":"18bee2bdccb098bf05178e2cb62a6b9f7d5caa8a0a69c1abcc0e76384a9cada3","schema_version":"1.0","event_id":"sha256:18bee2bdccb098bf05178e2cb62a6b9f7d5caa8a0a69c1abcc0e76384a9cada3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CHZAEOJSZNRJO7MGS7BKE46ILX/bundle.json","state_url":"https://pith.science/pith/CHZAEOJSZNRJO7MGS7BKE46ILX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CHZAEOJSZNRJO7MGS7BKE46ILX/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-25T21:15:41Z","links":{"resolver":"https://pith.science/pith/CHZAEOJSZNRJO7MGS7BKE46ILX","bundle":"https://pith.science/pith/CHZAEOJSZNRJO7MGS7BKE46ILX/bundle.json","state":"https://pith.science/pith/CHZAEOJSZNRJO7MGS7BKE46ILX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CHZAEOJSZNRJO7MGS7BKE46ILX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:CHZAEOJSZNRJO7MGS7BKE46ILX","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":"88811542edac56ac747eff95bbaa02ad03956c1cd95e310af7ff3ca1f2a93dad","cross_cats_sorted":["hep-lat","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-06-18T02:58:18Z","title_canon_sha256":"968ace4dca613deef6e593b51c2d997d6da936f78afce9c70937551241b449ce"},"schema_version":"1.0","source":{"id":"1406.4579","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.4579","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"arxiv_version","alias_value":"1406.4579v1","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.4579","created_at":"2026-05-18T02:25:47Z"},{"alias_kind":"pith_short_12","alias_value":"CHZAEOJSZNRJ","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"CHZAEOJSZNRJO7MG","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"CHZAEOJS","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:18bee2bdccb098bf05178e2cb62a6b9f7d5caa8a0a69c1abcc0e76384a9cada3","target":"graph","created_at":"2026-05-18T02:25:47Z","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 study the electromagnetic contribution to the proton-neutron mass splitting by combining lattice simulations and the modified Cottingham sum rule of Walker-Loud, Carlson and Miller. This analysis yields an estimate of the isovector nucleon magnetic polarizability as a function of pion mass. The physical value, obtained by chiral extrapolation to the physical pion mass, is $\\beta_{p-n}=(-1.12 \\pm 0.40)\\times 10^{-4}\\ \\mathrm{fm}^3$, which is in agreement with the empirical result, albeit with a somewhat smaller error. As a result, we find $\\delta M^{\\gamma}_{p-n}=1.04 \\pm 0.11\\ \\mathrm{MeV}$","authors_text":"A. W. Thomas, R. D. Young, X. G. Wang","cross_cats":["hep-lat","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-06-18T02:58:18Z","title":"Electromagnetic Contribution to the Proton-Neutron Mass Splitting"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.4579","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":"sha256:953e4e5c08334750343c325f8bf26daf512820ee12782deb9d0b8a33f576ca33","target":"record","created_at":"2026-05-18T02:25:47Z","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":"88811542edac56ac747eff95bbaa02ad03956c1cd95e310af7ff3ca1f2a93dad","cross_cats_sorted":["hep-lat","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-06-18T02:58:18Z","title_canon_sha256":"968ace4dca613deef6e593b51c2d997d6da936f78afce9c70937551241b449ce"},"schema_version":"1.0","source":{"id":"1406.4579","kind":"arxiv","version":1}},"canonical_sha256":"11f2023932cb62977d8697c2a273c85ddc8913069c393ed1b20e8de8e8f1695c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"11f2023932cb62977d8697c2a273c85ddc8913069c393ed1b20e8de8e8f1695c","first_computed_at":"2026-05-18T02:25:47.277097Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:47.277097Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"by+fveh8TBAqbgtrnbTaBdf/Xkh6SR7g6bASGg/C3EUuTxLn8R4I+qnIQVOK7/fVC4/8VoD3CyOvTw2oXxCHBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:47.277684Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.4579","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:953e4e5c08334750343c325f8bf26daf512820ee12782deb9d0b8a33f576ca33","sha256:18bee2bdccb098bf05178e2cb62a6b9f7d5caa8a0a69c1abcc0e76384a9cada3"],"state_sha256":"b1fd5593b3359b70687886a9b4061cdeb1cdd23b3191e1061a3d67eec91752b9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ojnXsrLg2ItA1hxEqJHdVsDiql1w0otOurd6eCxuKrb/w8XKguA4Zac2Tm+wwSDBeyOG9KX2gsdhXQ0V/hSrCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:15:41.448232Z","bundle_sha256":"d24cb3f422e1016e8fcca4d9b0c3e8f5a4dfb70192b355a1eb3b0edb68c50c23"}}