{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:AM4XECEKNHZAXRKQKEODJKAVNK","short_pith_number":"pith:AM4XECEK","canonical_record":{"source":{"id":"2305.10497","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-05-17T18:05:50Z","cross_cats_sorted":["astro-ph.HE","nucl-th"],"title_canon_sha256":"221270ca1afa75810c06ac96e5fcbcd0b5612385aba739cfb7223e5a3116e547","abstract_canon_sha256":"817dc80763e103d72c2c0549f86fab785eb29bcd592d2a8adf0a9d2e5dbbcd1a"},"schema_version":"1.0"},"canonical_sha256":"033972088a69f20bc550511c34a8156a935551ff9ba0ac74576040408ef07b5f","source":{"kind":"arxiv","id":"2305.10497","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.10497","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"arxiv_version","alias_value":"2305.10497v2","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.10497","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"pith_short_12","alias_value":"AM4XECEKNHZA","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"pith_short_16","alias_value":"AM4XECEKNHZAXRKQ","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"pith_short_8","alias_value":"AM4XECEK","created_at":"2026-07-05T08:01:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:AM4XECEKNHZAXRKQKEODJKAVNK","target":"record","payload":{"canonical_record":{"source":{"id":"2305.10497","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-05-17T18:05:50Z","cross_cats_sorted":["astro-ph.HE","nucl-th"],"title_canon_sha256":"221270ca1afa75810c06ac96e5fcbcd0b5612385aba739cfb7223e5a3116e547","abstract_canon_sha256":"817dc80763e103d72c2c0549f86fab785eb29bcd592d2a8adf0a9d2e5dbbcd1a"},"schema_version":"1.0"},"canonical_sha256":"033972088a69f20bc550511c34a8156a935551ff9ba0ac74576040408ef07b5f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:01:59.432124Z","signature_b64":"byATfwmPIEN/EVNtzkTQIgSIegeDcOncyQG1+5LfYPTIMk7IdMDb16XGbx2qt1BwJHd3pzN2q1lQeI0auqUVBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"033972088a69f20bc550511c34a8156a935551ff9ba0ac74576040408ef07b5f","last_reissued_at":"2026-07-05T08:01:59.431698Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:01:59.431698Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2305.10497","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:01:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n0oxAfWJsvz4ASfe2dA6GOKyon0u6/g2GXY6KpNpCWyDxPLpFevKS0kGHNTusK+pgW2cKsDpS4bMJquhYStlDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T23:16:19.914334Z"},"content_sha256":"00a22fdf392efd1ae7e6ff8f418b6bbd4524b5f307197bd08728db2eb88ac1ad","schema_version":"1.0","event_id":"sha256:00a22fdf392efd1ae7e6ff8f418b6bbd4524b5f307197bd08728db2eb88ac1ad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:AM4XECEKNHZAXRKQKEODJKAVNK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Photon Content of the Neutron","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","nucl-th"],"primary_cat":"hep-ph","authors_text":"Bei Zhou, Keping Xie, T.J. Hobbs","submitted_at":"2023-05-17T18:05:50Z","abstract_excerpt":"In this work, we complete our CT18qed study with the neutron's photon parton distribution function (PDF), which is essential for the nucleus scattering phenomenology. Two methods, CT18lux and CT18qed, based on the LUXqed formalism and the DGLAP evolution, respectively, to determine the neutron's photon PDF have been presented. Various low-$Q^2$ non-perturbative variations have been carefully examined, which are treated as additional uncertainties on top of those induced by quark and gluon PDFs. The impacts of the momentum sum rule as well as isospin symmetry violation have been explored, and t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.10497","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2305.10497/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T08:01:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w/AR6Gjg5IYXLhpa64Qz5DjhddbKg2CebQ2iDL5Nx7+sUVajiN3AceldWzS6JtwUkNiqq9FY3UTZdlvyssWEBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T23:16:19.914719Z"},"content_sha256":"558ec6fd94871357384247697fed80d5dcf625b5855dbc4dc08704f1d546493e","schema_version":"1.0","event_id":"sha256:558ec6fd94871357384247697fed80d5dcf625b5855dbc4dc08704f1d546493e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AM4XECEKNHZAXRKQKEODJKAVNK/bundle.json","state_url":"https://pith.science/pith/AM4XECEKNHZAXRKQKEODJKAVNK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AM4XECEKNHZAXRKQKEODJKAVNK/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":"2026-08-03T23:16:19Z","links":{"resolver":"https://pith.science/pith/AM4XECEKNHZAXRKQKEODJKAVNK","bundle":"https://pith.science/pith/AM4XECEKNHZAXRKQKEODJKAVNK/bundle.json","state":"https://pith.science/pith/AM4XECEKNHZAXRKQKEODJKAVNK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AM4XECEKNHZAXRKQKEODJKAVNK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:AM4XECEKNHZAXRKQKEODJKAVNK","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":"817dc80763e103d72c2c0549f86fab785eb29bcd592d2a8adf0a9d2e5dbbcd1a","cross_cats_sorted":["astro-ph.HE","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-05-17T18:05:50Z","title_canon_sha256":"221270ca1afa75810c06ac96e5fcbcd0b5612385aba739cfb7223e5a3116e547"},"schema_version":"1.0","source":{"id":"2305.10497","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.10497","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"arxiv_version","alias_value":"2305.10497v2","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.10497","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"pith_short_12","alias_value":"AM4XECEKNHZA","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"pith_short_16","alias_value":"AM4XECEKNHZAXRKQ","created_at":"2026-07-05T08:01:59Z"},{"alias_kind":"pith_short_8","alias_value":"AM4XECEK","created_at":"2026-07-05T08:01:59Z"}],"graph_snapshots":[{"event_id":"sha256:558ec6fd94871357384247697fed80d5dcf625b5855dbc4dc08704f1d546493e","target":"graph","created_at":"2026-07-05T08:01:59Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2305.10497/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we complete our CT18qed study with the neutron's photon parton distribution function (PDF), which is essential for the nucleus scattering phenomenology. Two methods, CT18lux and CT18qed, based on the LUXqed formalism and the DGLAP evolution, respectively, to determine the neutron's photon PDF have been presented. Various low-$Q^2$ non-perturbative variations have been carefully examined, which are treated as additional uncertainties on top of those induced by quark and gluon PDFs. The impacts of the momentum sum rule as well as isospin symmetry violation have been explored, and t","authors_text":"Bei Zhou, Keping Xie, T.J. Hobbs","cross_cats":["astro-ph.HE","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-05-17T18:05:50Z","title":"The Photon Content of the Neutron"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.10497","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":"sha256:00a22fdf392efd1ae7e6ff8f418b6bbd4524b5f307197bd08728db2eb88ac1ad","target":"record","created_at":"2026-07-05T08:01:59Z","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":"817dc80763e103d72c2c0549f86fab785eb29bcd592d2a8adf0a9d2e5dbbcd1a","cross_cats_sorted":["astro-ph.HE","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-05-17T18:05:50Z","title_canon_sha256":"221270ca1afa75810c06ac96e5fcbcd0b5612385aba739cfb7223e5a3116e547"},"schema_version":"1.0","source":{"id":"2305.10497","kind":"arxiv","version":2}},"canonical_sha256":"033972088a69f20bc550511c34a8156a935551ff9ba0ac74576040408ef07b5f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"033972088a69f20bc550511c34a8156a935551ff9ba0ac74576040408ef07b5f","first_computed_at":"2026-07-05T08:01:59.431698Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:01:59.431698Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"byATfwmPIEN/EVNtzkTQIgSIegeDcOncyQG1+5LfYPTIMk7IdMDb16XGbx2qt1BwJHd3pzN2q1lQeI0auqUVBA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:01:59.432124Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.10497","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00a22fdf392efd1ae7e6ff8f418b6bbd4524b5f307197bd08728db2eb88ac1ad","sha256:558ec6fd94871357384247697fed80d5dcf625b5855dbc4dc08704f1d546493e"],"state_sha256":"a2cbb1c5698f9410b9d526b39378b0ddff630989abfb311744c567b8101546d8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"stekjQlZNbO0gJsArRtIjYTMIoZVLY8LfIql2cOjSgcrLSdrtYv9HeuisbOa7ZjAghxXAqDbrT0qCUpk9RGbBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T23:16:19.920414Z","bundle_sha256":"ec8d61c64aa65693389de3d0b40cb0c3f4f4b8ff63d9ccfae71424192c23d565"}}