{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:BRAS4KAGALSERHJB64RB4GL255","short_pith_number":"pith:BRAS4KAG","canonical_record":{"source":{"id":"hep-ph/9901377","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1999-01-22T09:10:28Z","cross_cats_sorted":[],"title_canon_sha256":"111da1849655bce999716ae2a0150382506cd6270e387b65c290d65649ed1f71","abstract_canon_sha256":"eb489b71a281fd94809735769935c6860880ef8a762a1decfdbd80b82af49afc"},"schema_version":"1.0"},"canonical_sha256":"0c412e280602e4489d21f7221e197aef7815c2f1523fc811c8032ecfb347777a","source":{"kind":"arxiv","id":"hep-ph/9901377","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9901377","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9901377v1","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9901377","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"pith_short_12","alias_value":"BRAS4KAGALSE","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"pith_short_16","alias_value":"BRAS4KAGALSERHJB","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"pith_short_8","alias_value":"BRAS4KAG","created_at":"2026-07-04T16:14:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:BRAS4KAGALSERHJB64RB4GL255","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9901377","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1999-01-22T09:10:28Z","cross_cats_sorted":[],"title_canon_sha256":"111da1849655bce999716ae2a0150382506cd6270e387b65c290d65649ed1f71","abstract_canon_sha256":"eb489b71a281fd94809735769935c6860880ef8a762a1decfdbd80b82af49afc"},"schema_version":"1.0"},"canonical_sha256":"0c412e280602e4489d21f7221e197aef7815c2f1523fc811c8032ecfb347777a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:14:03.623260Z","signature_b64":"+nKPHCgR3s6KeMRGA0fGvTo/+p+pxSiWKas8xDWSmxvUdef12B4Crrywm1d+ELbVx7kgOrWxPs+KJBW97HAaDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0c412e280602e4489d21f7221e197aef7815c2f1523fc811c8032ecfb347777a","last_reissued_at":"2026-07-04T16:14:03.622776Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:14:03.622776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9901377","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":"2026-07-04T16:14:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"970iMoL6fVBKdnV1ZY6MiX7ZFkqRA25WskG2mZAEYqWVAvTiJiRxNCml5lP1I6Yq3u2PfdAnh1DLuzukMN9TAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T22:15:30.453992Z"},"content_sha256":"c73185917f48cc9e9b068b17cd739e5b2f39bddb9a109225db8dff8244e3e41f","schema_version":"1.0","event_id":"sha256:c73185917f48cc9e9b068b17cd739e5b2f39bddb9a109225db8dff8244e3e41f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:BRAS4KAGALSERHJB64RB4GL255","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"NJL model on the light cone and pion structure function","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"K. Yazaki (U.of Tokyo), T. Hama, T. Matsuki, W. Bentz","submitted_at":"1999-01-22T09:10:28Z","abstract_excerpt":"The NJL model is formulated on the light cone. Using the 1/N expansion to solve the fermionic constraint, an effective 4-fermi lagrangian is derived. Pionic properties are investigated using this lagrangian, and the formal equivalence to the equal-time formulation is demonstrated. Two regularization schemes in terms of light-cone variables are discussed: An extension of the 'invariant mass cut-off scheme', and a transverse momentum cut-off scheme. It is shown that the first one is equivalent to the covariant 3-momentum cut-off (dispersion cut-off) scheme in the equal-time formulation. As an ap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9901377","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/9901377/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":"2026-07-04T16:14:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bI6vBH/3slZm6DT+ErUEAHPw0ghs4pQeVr9WKiNNJ7uu8HpMaZYwGGnrqXpQiv3sg01Ol5jBQGLCGyHzLJKcDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T22:15:30.454373Z"},"content_sha256":"60cfb234975dee480a8f698ef1a698376cad1fa4db4fcf12ef89293ecc94c1b0","schema_version":"1.0","event_id":"sha256:60cfb234975dee480a8f698ef1a698376cad1fa4db4fcf12ef89293ecc94c1b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BRAS4KAGALSERHJB64RB4GL255/bundle.json","state_url":"https://pith.science/pith/BRAS4KAGALSERHJB64RB4GL255/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BRAS4KAGALSERHJB64RB4GL255/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":"2026-08-01T22:15:30Z","links":{"resolver":"https://pith.science/pith/BRAS4KAGALSERHJB64RB4GL255","bundle":"https://pith.science/pith/BRAS4KAGALSERHJB64RB4GL255/bundle.json","state":"https://pith.science/pith/BRAS4KAGALSERHJB64RB4GL255/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BRAS4KAGALSERHJB64RB4GL255/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:BRAS4KAGALSERHJB64RB4GL255","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":"eb489b71a281fd94809735769935c6860880ef8a762a1decfdbd80b82af49afc","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1999-01-22T09:10:28Z","title_canon_sha256":"111da1849655bce999716ae2a0150382506cd6270e387b65c290d65649ed1f71"},"schema_version":"1.0","source":{"id":"hep-ph/9901377","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9901377","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9901377v1","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9901377","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"pith_short_12","alias_value":"BRAS4KAGALSE","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"pith_short_16","alias_value":"BRAS4KAGALSERHJB","created_at":"2026-07-04T16:14:03Z"},{"alias_kind":"pith_short_8","alias_value":"BRAS4KAG","created_at":"2026-07-04T16:14:03Z"}],"graph_snapshots":[{"event_id":"sha256:60cfb234975dee480a8f698ef1a698376cad1fa4db4fcf12ef89293ecc94c1b0","target":"graph","created_at":"2026-07-04T16:14:03Z","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/9901377/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The NJL model is formulated on the light cone. Using the 1/N expansion to solve the fermionic constraint, an effective 4-fermi lagrangian is derived. Pionic properties are investigated using this lagrangian, and the formal equivalence to the equal-time formulation is demonstrated. Two regularization schemes in terms of light-cone variables are discussed: An extension of the 'invariant mass cut-off scheme', and a transverse momentum cut-off scheme. It is shown that the first one is equivalent to the covariant 3-momentum cut-off (dispersion cut-off) scheme in the equal-time formulation. As an ap","authors_text":"K. Yazaki (U.of Tokyo), T. Hama, T. Matsuki, W. Bentz","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1999-01-22T09:10:28Z","title":"NJL model on the light cone and pion structure function"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9901377","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:c73185917f48cc9e9b068b17cd739e5b2f39bddb9a109225db8dff8244e3e41f","target":"record","created_at":"2026-07-04T16:14:03Z","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":"eb489b71a281fd94809735769935c6860880ef8a762a1decfdbd80b82af49afc","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1999-01-22T09:10:28Z","title_canon_sha256":"111da1849655bce999716ae2a0150382506cd6270e387b65c290d65649ed1f71"},"schema_version":"1.0","source":{"id":"hep-ph/9901377","kind":"arxiv","version":1}},"canonical_sha256":"0c412e280602e4489d21f7221e197aef7815c2f1523fc811c8032ecfb347777a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c412e280602e4489d21f7221e197aef7815c2f1523fc811c8032ecfb347777a","first_computed_at":"2026-07-04T16:14:03.622776Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:14:03.622776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+nKPHCgR3s6KeMRGA0fGvTo/+p+pxSiWKas8xDWSmxvUdef12B4Crrywm1d+ELbVx7kgOrWxPs+KJBW97HAaDg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:14:03.623260Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9901377","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c73185917f48cc9e9b068b17cd739e5b2f39bddb9a109225db8dff8244e3e41f","sha256:60cfb234975dee480a8f698ef1a698376cad1fa4db4fcf12ef89293ecc94c1b0"],"state_sha256":"3b244de3f7988ba46e1a7a0059944cdfa7c8d841316f28114e2f79be9ac227b7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qe1XjhSVjDR27Wh/AtU2dm6PJaQCZrv+c3tzVnV/2wquBrnj2MtbcE7m9lAPschwlwrZT+cP9owHV9qFRGP1Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T22:15:30.456855Z","bundle_sha256":"a8b2677ffc14c5e3d9a3e2cd5ea58fe99a82e722d5687f145dbbd66751ea252a"}}