{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:DRQDRX3YFAE4Y2367I4VLGDPCP","short_pith_number":"pith:DRQDRX3Y","canonical_record":{"source":{"id":"hep-ph/9812449","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-20T11:45:04Z","cross_cats_sorted":[],"title_canon_sha256":"f081aeca7fb3853f1c964e537424df23b869c8e27efcfe3826b65f577680d4e6","abstract_canon_sha256":"5896fa0bac360b57b7dfbcc710edeb8274c881cbcf914e29690f886d881e79af"},"schema_version":"1.0"},"canonical_sha256":"1c6038df782809cc6b7efa3955986f13db5a155cead6fa1742c9754bf4b9d1a8","source":{"kind":"arxiv","id":"hep-ph/9812449","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9812449","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9812449v2","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9812449","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"pith_short_12","alias_value":"DRQDRX3YFAE4","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"pith_short_16","alias_value":"DRQDRX3YFAE4Y236","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"pith_short_8","alias_value":"DRQDRX3Y","created_at":"2026-07-04T16:09:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:DRQDRX3YFAE4Y2367I4VLGDPCP","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9812449","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-20T11:45:04Z","cross_cats_sorted":[],"title_canon_sha256":"f081aeca7fb3853f1c964e537424df23b869c8e27efcfe3826b65f577680d4e6","abstract_canon_sha256":"5896fa0bac360b57b7dfbcc710edeb8274c881cbcf914e29690f886d881e79af"},"schema_version":"1.0"},"canonical_sha256":"1c6038df782809cc6b7efa3955986f13db5a155cead6fa1742c9754bf4b9d1a8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:09:38.818100Z","signature_b64":"7z/mrQM15+d13ucW4KQBM8+oAKuZsTy9hufzRMEZMuxXSsCglFIiRalxh/wWQxEnaujEs0ERAiaRzNSq27fBDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c6038df782809cc6b7efa3955986f13db5a155cead6fa1742c9754bf4b9d1a8","last_reissued_at":"2026-07-04T16:09:38.817688Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:09:38.817688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9812449","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":"2026-07-04T16:09:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dLqTcoOcweYzOyJlshf60TLHA05xY3bCM8tAbOxWHY9yzSwDG6K3rxB5G0JzhgxRM7QF+nDe19T79wmdKiB+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T05:23:16.961537Z"},"content_sha256":"24800b114ee5e882f233528bc24b9638df8d350c7c4b6ea6ddde0592ba816f4a","schema_version":"1.0","event_id":"sha256:24800b114ee5e882f233528bc24b9638df8d350c7c4b6ea6ddde0592ba816f4a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:DRQDRX3YFAE4Y2367I4VLGDPCP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Polarized Structure Functions in QCD","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Jiro Kodaira (Hiroshima Univ.), Kazuhiro Tanaka (Juntendo Univ.)","submitted_at":"1998-12-20T11:45:04Z","abstract_excerpt":"Hadron spin physics is now one of the most active fields of physics. Especially in the last ten years, great progress has been made both theoretically and experimentally that has considerably improved our knowledge of the spin structure of nucleons. We review the nucleon's polarized structure functions from the viewpoint of factorization theorems and the gauge invariant, nonlocal light-cone operators in QCD. We discuss a systematic treatment of the polarized structure functions and the corresponding parton distribution functions, which are relevant to inclusive lepto- and hadro-production. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9812449","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/hep-ph/9812449/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":"2026-07-04T16:09:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GqXfqfJG1VTp/8Kplrxd86tnNO2wZoyaDsqjFfihhljmBe77o9wW2+yu32QBa1h6ArkKLXcSGs4nHQWhJ7kBDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T05:23:16.961907Z"},"content_sha256":"46274153dfd5b1a858e3cbfaf758021004db4765f2397901af5c50f0c130ee2e","schema_version":"1.0","event_id":"sha256:46274153dfd5b1a858e3cbfaf758021004db4765f2397901af5c50f0c130ee2e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DRQDRX3YFAE4Y2367I4VLGDPCP/bundle.json","state_url":"https://pith.science/pith/DRQDRX3YFAE4Y2367I4VLGDPCP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DRQDRX3YFAE4Y2367I4VLGDPCP/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":"2026-07-05T05:23:16Z","links":{"resolver":"https://pith.science/pith/DRQDRX3YFAE4Y2367I4VLGDPCP","bundle":"https://pith.science/pith/DRQDRX3YFAE4Y2367I4VLGDPCP/bundle.json","state":"https://pith.science/pith/DRQDRX3YFAE4Y2367I4VLGDPCP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DRQDRX3YFAE4Y2367I4VLGDPCP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:DRQDRX3YFAE4Y2367I4VLGDPCP","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":"5896fa0bac360b57b7dfbcc710edeb8274c881cbcf914e29690f886d881e79af","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-20T11:45:04Z","title_canon_sha256":"f081aeca7fb3853f1c964e537424df23b869c8e27efcfe3826b65f577680d4e6"},"schema_version":"1.0","source":{"id":"hep-ph/9812449","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9812449","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9812449v2","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9812449","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"pith_short_12","alias_value":"DRQDRX3YFAE4","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"pith_short_16","alias_value":"DRQDRX3YFAE4Y236","created_at":"2026-07-04T16:09:38Z"},{"alias_kind":"pith_short_8","alias_value":"DRQDRX3Y","created_at":"2026-07-04T16:09:38Z"}],"graph_snapshots":[{"event_id":"sha256:46274153dfd5b1a858e3cbfaf758021004db4765f2397901af5c50f0c130ee2e","target":"graph","created_at":"2026-07-04T16:09:38Z","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/hep-ph/9812449/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hadron spin physics is now one of the most active fields of physics. Especially in the last ten years, great progress has been made both theoretically and experimentally that has considerably improved our knowledge of the spin structure of nucleons. We review the nucleon's polarized structure functions from the viewpoint of factorization theorems and the gauge invariant, nonlocal light-cone operators in QCD. We discuss a systematic treatment of the polarized structure functions and the corresponding parton distribution functions, which are relevant to inclusive lepto- and hadro-production. We ","authors_text":"Jiro Kodaira (Hiroshima Univ.), Kazuhiro Tanaka (Juntendo Univ.)","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1998-12-20T11:45:04Z","title":"Polarized Structure Functions in QCD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9812449","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":"sha256:24800b114ee5e882f233528bc24b9638df8d350c7c4b6ea6ddde0592ba816f4a","target":"record","created_at":"2026-07-04T16:09:38Z","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":"5896fa0bac360b57b7dfbcc710edeb8274c881cbcf914e29690f886d881e79af","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-20T11:45:04Z","title_canon_sha256":"f081aeca7fb3853f1c964e537424df23b869c8e27efcfe3826b65f577680d4e6"},"schema_version":"1.0","source":{"id":"hep-ph/9812449","kind":"arxiv","version":2}},"canonical_sha256":"1c6038df782809cc6b7efa3955986f13db5a155cead6fa1742c9754bf4b9d1a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1c6038df782809cc6b7efa3955986f13db5a155cead6fa1742c9754bf4b9d1a8","first_computed_at":"2026-07-04T16:09:38.817688Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:09:38.817688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7z/mrQM15+d13ucW4KQBM8+oAKuZsTy9hufzRMEZMuxXSsCglFIiRalxh/wWQxEnaujEs0ERAiaRzNSq27fBDA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:09:38.818100Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9812449","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24800b114ee5e882f233528bc24b9638df8d350c7c4b6ea6ddde0592ba816f4a","sha256:46274153dfd5b1a858e3cbfaf758021004db4765f2397901af5c50f0c130ee2e"],"state_sha256":"2afb0111148a620f3f6210e65d9476372d8a657e323ebaa9a6e256cb1c16e887"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ox4Yxf8vzOkfMZ9Mg1MbWwp4uNb60b+13+35wlF/+KA+2jnrE/zuRAGAkHB4v7KHtpP5tYisxgZGwILJ3pwFDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T05:23:16.963811Z","bundle_sha256":"a4aa22fb13ed2f0fa5c3d9c504f5d1dfdd7b93b5b9463938e6d3997207002ae3"}}