{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:MC7UBYK7IPBPB6TKSITN2UPEFR","short_pith_number":"pith:MC7UBYK7","canonical_record":{"source":{"id":"hep-ph/9708378","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1997-08-17T11:07:12Z","cross_cats_sorted":[],"title_canon_sha256":"aad1fa1cb13a9d0959fe2dade7d3311eb961c418f81bc5a94e2e06dbe3e150ce","abstract_canon_sha256":"91b96e0cda74cdd849f36f597d8ec65a9caef39a1f4865b8d33cae2e0bb00a6b"},"schema_version":"1.0"},"canonical_sha256":"60bf40e15f43c2f0fa6a9226dd51e42c7d0e08e9e608e9930baea1f2b24864ee","source":{"kind":"arxiv","id":"hep-ph/9708378","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9708378","created_at":"2026-05-18T04:13:25Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9708378v1","created_at":"2026-05-18T04:13:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9708378","created_at":"2026-05-18T04:13:25Z"},{"alias_kind":"pith_short_12","alias_value":"MC7UBYK7IPBP","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"MC7UBYK7IPBPB6TK","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"MC7UBYK7","created_at":"2026-05-18T12:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:MC7UBYK7IPBPB6TKSITN2UPEFR","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9708378","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1997-08-17T11:07:12Z","cross_cats_sorted":[],"title_canon_sha256":"aad1fa1cb13a9d0959fe2dade7d3311eb961c418f81bc5a94e2e06dbe3e150ce","abstract_canon_sha256":"91b96e0cda74cdd849f36f597d8ec65a9caef39a1f4865b8d33cae2e0bb00a6b"},"schema_version":"1.0"},"canonical_sha256":"60bf40e15f43c2f0fa6a9226dd51e42c7d0e08e9e608e9930baea1f2b24864ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:13:25.222967Z","signature_b64":"4mpL836RcXVgFpWGl5Ma4FJgJn5mIRbd2w+agQ1wWw7c7MQoqEBCuiA5mJmehcNPAOJuFGNHmJPfNaXXonp0BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"60bf40e15f43c2f0fa6a9226dd51e42c7d0e08e9e608e9930baea1f2b24864ee","last_reissued_at":"2026-05-18T04:13:25.222588Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:13:25.222588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9708378","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":"2026-05-18T04:13:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SLgZrJGFkPJrrnGkZ1E9H5DoTJYP84tRfE6CuGuvFGljifMinXaD7ePoT9pMvs0/TCxFSl8nNMngfHtxerlHDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:55:36.651804Z"},"content_sha256":"1066a109d6ce28e7f49aca3a8e1d2f3295c452ae000a3c121a5e92da6e1419cb","schema_version":"1.0","event_id":"sha256:1066a109d6ce28e7f49aca3a8e1d2f3295c452ae000a3c121a5e92da6e1419cb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:MC7UBYK7IPBPB6TKSITN2UPEFR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gluon Polarization in Nucleons","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Saalfeld, G. Piller, L. Mankiewicz","submitted_at":"1997-08-17T11:07:12Z","abstract_excerpt":"In QCD the gauge-invariant gluon polarization Delta G in a nucleon can be defined either in a non-local way as the integral over the Ioffe-time distribution of polarized gluons, or in light-cone gauge as the forward matrix element of the local topological current. We have investigated both possibilities within the framework of QCD sum rules. Although the topological current is built from local fields, we have found that its matrix element retains sensitivity to large longitudinal distances. Because QCD sum rules produce artificial oscillations of the Ioffe-time distribution of polarized glue a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9708378","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":"2026-05-18T04:13:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i2zTG1ftHwqOqP1mgQ3ujEDH+fITdGuCWZ0/rs1Yyc3r4WVUTXmiHwaj2hVBXKWfewMtak4GgZOuVMbmW8sZDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:55:36.652539Z"},"content_sha256":"90413e89766af943389e2755e388fb04a1c4c0eeabd5ba7eaf8b8854257d88f0","schema_version":"1.0","event_id":"sha256:90413e89766af943389e2755e388fb04a1c4c0eeabd5ba7eaf8b8854257d88f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MC7UBYK7IPBPB6TKSITN2UPEFR/bundle.json","state_url":"https://pith.science/pith/MC7UBYK7IPBPB6TKSITN2UPEFR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MC7UBYK7IPBPB6TKSITN2UPEFR/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":"2026-05-25T19:55:36Z","links":{"resolver":"https://pith.science/pith/MC7UBYK7IPBPB6TKSITN2UPEFR","bundle":"https://pith.science/pith/MC7UBYK7IPBPB6TKSITN2UPEFR/bundle.json","state":"https://pith.science/pith/MC7UBYK7IPBPB6TKSITN2UPEFR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MC7UBYK7IPBPB6TKSITN2UPEFR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:MC7UBYK7IPBPB6TKSITN2UPEFR","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":"91b96e0cda74cdd849f36f597d8ec65a9caef39a1f4865b8d33cae2e0bb00a6b","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1997-08-17T11:07:12Z","title_canon_sha256":"aad1fa1cb13a9d0959fe2dade7d3311eb961c418f81bc5a94e2e06dbe3e150ce"},"schema_version":"1.0","source":{"id":"hep-ph/9708378","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9708378","created_at":"2026-05-18T04:13:25Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9708378v1","created_at":"2026-05-18T04:13:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9708378","created_at":"2026-05-18T04:13:25Z"},{"alias_kind":"pith_short_12","alias_value":"MC7UBYK7IPBP","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"MC7UBYK7IPBPB6TK","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"MC7UBYK7","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:90413e89766af943389e2755e388fb04a1c4c0eeabd5ba7eaf8b8854257d88f0","target":"graph","created_at":"2026-05-18T04:13:25Z","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":"In QCD the gauge-invariant gluon polarization Delta G in a nucleon can be defined either in a non-local way as the integral over the Ioffe-time distribution of polarized gluons, or in light-cone gauge as the forward matrix element of the local topological current. We have investigated both possibilities within the framework of QCD sum rules. Although the topological current is built from local fields, we have found that its matrix element retains sensitivity to large longitudinal distances. Because QCD sum rules produce artificial oscillations of the Ioffe-time distribution of polarized glue a","authors_text":"A. Saalfeld, G. Piller, L. Mankiewicz","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1997-08-17T11:07:12Z","title":"Gluon Polarization in Nucleons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9708378","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":"sha256:1066a109d6ce28e7f49aca3a8e1d2f3295c452ae000a3c121a5e92da6e1419cb","target":"record","created_at":"2026-05-18T04:13:25Z","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":"91b96e0cda74cdd849f36f597d8ec65a9caef39a1f4865b8d33cae2e0bb00a6b","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1997-08-17T11:07:12Z","title_canon_sha256":"aad1fa1cb13a9d0959fe2dade7d3311eb961c418f81bc5a94e2e06dbe3e150ce"},"schema_version":"1.0","source":{"id":"hep-ph/9708378","kind":"arxiv","version":1}},"canonical_sha256":"60bf40e15f43c2f0fa6a9226dd51e42c7d0e08e9e608e9930baea1f2b24864ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60bf40e15f43c2f0fa6a9226dd51e42c7d0e08e9e608e9930baea1f2b24864ee","first_computed_at":"2026-05-18T04:13:25.222588Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:13:25.222588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4mpL836RcXVgFpWGl5Ma4FJgJn5mIRbd2w+agQ1wWw7c7MQoqEBCuiA5mJmehcNPAOJuFGNHmJPfNaXXonp0BA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:13:25.222967Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9708378","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1066a109d6ce28e7f49aca3a8e1d2f3295c452ae000a3c121a5e92da6e1419cb","sha256:90413e89766af943389e2755e388fb04a1c4c0eeabd5ba7eaf8b8854257d88f0"],"state_sha256":"a444fed91f574ab1edfe029225c2d9d87be5abee28fa4556ca1203e6709146d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s2TpXpN+9EFTSBWxYeJg/h5l+se2DNQW6Z96zbeIq50BkKEiCwskY4/LxKbLBVfyyOx9P1JpYnA/G73mtmXODA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:55:36.656676Z","bundle_sha256":"69b87ff2c08c660047c451bb4dfc8707259d62040a3a148d17c714d92b8e86e9"}}