{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:TM74BOWCGBIMJMJXIHF7AZP3IO","short_pith_number":"pith:TM74BOWC","canonical_record":{"source":{"id":"1908.02237","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-08-06T16:25:44Z","cross_cats_sorted":[],"title_canon_sha256":"8950eee3b7a1d5279f3e02cf50ebeadf55dda71fc46d5b7f61ba916ace84a1d8","abstract_canon_sha256":"4b953450f63b77b1d42e51db73d47812285ef48834139d59512d2edf046998f1"},"schema_version":"1.0"},"canonical_sha256":"9b3fc0bac23050c4b13741cbf065fb43bbae35b5ba546229fb76b1699e8a2026","source":{"kind":"arxiv","id":"1908.02237","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.02237","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"arxiv_version","alias_value":"1908.02237v2","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02237","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"pith_short_12","alias_value":"TM74BOWCGBIM","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"pith_short_16","alias_value":"TM74BOWCGBIMJMJX","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"pith_short_8","alias_value":"TM74BOWC","created_at":"2026-07-04T23:52:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:TM74BOWCGBIMJMJXIHF7AZP3IO","target":"record","payload":{"canonical_record":{"source":{"id":"1908.02237","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-08-06T16:25:44Z","cross_cats_sorted":[],"title_canon_sha256":"8950eee3b7a1d5279f3e02cf50ebeadf55dda71fc46d5b7f61ba916ace84a1d8","abstract_canon_sha256":"4b953450f63b77b1d42e51db73d47812285ef48834139d59512d2edf046998f1"},"schema_version":"1.0"},"canonical_sha256":"9b3fc0bac23050c4b13741cbf065fb43bbae35b5ba546229fb76b1699e8a2026","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:52:22.802134Z","signature_b64":"5bO12zF4ESagZOAp2mafFGHrnJSi6WMK5KDcUJg9rG3dmwNrlGeRJOl56w1j5PYV81IfBwm2p14stSAUoO+OCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b3fc0bac23050c4b13741cbf065fb43bbae35b5ba546229fb76b1699e8a2026","last_reissued_at":"2026-07-04T23:52:22.801712Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:52:22.801712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.02237","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":"2026-07-04T23:52:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"euzCHRRWeEB6GXKgM51EDFeFY8RcypN7/y6omejMzkOpNsj/HSV4ZvSSj7chPXPh1g3zv8WMwf8Fg2yVPNE1Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:14:22.145749Z"},"content_sha256":"3c675f05407688844c5d02cb105ea32bfb1588a7c15fe16bc4775826ba790c95","schema_version":"1.0","event_id":"sha256:3c675f05407688844c5d02cb105ea32bfb1588a7c15fe16bc4775826ba790c95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:TM74BOWCGBIMJMJXIHF7AZP3IO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamical Nucleon-Pion System via Basis Light-Front Quantization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"James P. Vary, Weijie Du, Xingbo Zhao, Yang Li","submitted_at":"2019-08-06T16:25:44Z","abstract_excerpt":"We present the first application of the Basis Light-Front Quantization method to study a simple chiral model of the nucleon-pion system via an ab initio, non-perturbative, Hamiltonian approach. As a test problem, we consider the physical proton as the relativistic bound state of the nucleon-pion system. Based on the chiral model of the nucleon-pion system, we construct the mass-squared matrix of the system within our light-front basis representation. We obtain the proton's mass and the corresponding light-front wave function by solving the eigenvalue problem of the mass-squared matrix. With th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02237","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/1908.02237/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":"2026-07-04T23:52:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xr63D8GtIVk3UPxm4NZPncvipUcWfeMbrwbfit5JlD9j89YzBW0oLFBjhabu30J6Dlkc59YVNcZIBWAnarZDAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:14:22.146644Z"},"content_sha256":"5a8798533fcdbc35b1d8c53c2a1a59f334a22c08dfcd1e6e67c4ae84b5d663c7","schema_version":"1.0","event_id":"sha256:5a8798533fcdbc35b1d8c53c2a1a59f334a22c08dfcd1e6e67c4ae84b5d663c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TM74BOWCGBIMJMJXIHF7AZP3IO/bundle.json","state_url":"https://pith.science/pith/TM74BOWCGBIMJMJXIHF7AZP3IO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TM74BOWCGBIMJMJXIHF7AZP3IO/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":"2026-08-16T06:14:22Z","links":{"resolver":"https://pith.science/pith/TM74BOWCGBIMJMJXIHF7AZP3IO","bundle":"https://pith.science/pith/TM74BOWCGBIMJMJXIHF7AZP3IO/bundle.json","state":"https://pith.science/pith/TM74BOWCGBIMJMJXIHF7AZP3IO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TM74BOWCGBIMJMJXIHF7AZP3IO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TM74BOWCGBIMJMJXIHF7AZP3IO","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":"4b953450f63b77b1d42e51db73d47812285ef48834139d59512d2edf046998f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-08-06T16:25:44Z","title_canon_sha256":"8950eee3b7a1d5279f3e02cf50ebeadf55dda71fc46d5b7f61ba916ace84a1d8"},"schema_version":"1.0","source":{"id":"1908.02237","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.02237","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"arxiv_version","alias_value":"1908.02237v2","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02237","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"pith_short_12","alias_value":"TM74BOWCGBIM","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"pith_short_16","alias_value":"TM74BOWCGBIMJMJX","created_at":"2026-07-04T23:52:22Z"},{"alias_kind":"pith_short_8","alias_value":"TM74BOWC","created_at":"2026-07-04T23:52:22Z"}],"graph_snapshots":[{"event_id":"sha256:5a8798533fcdbc35b1d8c53c2a1a59f334a22c08dfcd1e6e67c4ae84b5d663c7","target":"graph","created_at":"2026-07-04T23:52:22Z","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/1908.02237/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the first application of the Basis Light-Front Quantization method to study a simple chiral model of the nucleon-pion system via an ab initio, non-perturbative, Hamiltonian approach. As a test problem, we consider the physical proton as the relativistic bound state of the nucleon-pion system. Based on the chiral model of the nucleon-pion system, we construct the mass-squared matrix of the system within our light-front basis representation. We obtain the proton's mass and the corresponding light-front wave function by solving the eigenvalue problem of the mass-squared matrix. With th","authors_text":"James P. Vary, Weijie Du, Xingbo Zhao, Yang Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-08-06T16:25:44Z","title":"Dynamical Nucleon-Pion System via Basis Light-Front Quantization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02237","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":"sha256:3c675f05407688844c5d02cb105ea32bfb1588a7c15fe16bc4775826ba790c95","target":"record","created_at":"2026-07-04T23:52:22Z","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":"4b953450f63b77b1d42e51db73d47812285ef48834139d59512d2edf046998f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-08-06T16:25:44Z","title_canon_sha256":"8950eee3b7a1d5279f3e02cf50ebeadf55dda71fc46d5b7f61ba916ace84a1d8"},"schema_version":"1.0","source":{"id":"1908.02237","kind":"arxiv","version":2}},"canonical_sha256":"9b3fc0bac23050c4b13741cbf065fb43bbae35b5ba546229fb76b1699e8a2026","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b3fc0bac23050c4b13741cbf065fb43bbae35b5ba546229fb76b1699e8a2026","first_computed_at":"2026-07-04T23:52:22.801712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:52:22.801712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5bO12zF4ESagZOAp2mafFGHrnJSi6WMK5KDcUJg9rG3dmwNrlGeRJOl56w1j5PYV81IfBwm2p14stSAUoO+OCA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:52:22.802134Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.02237","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c675f05407688844c5d02cb105ea32bfb1588a7c15fe16bc4775826ba790c95","sha256:5a8798533fcdbc35b1d8c53c2a1a59f334a22c08dfcd1e6e67c4ae84b5d663c7"],"state_sha256":"7d43dbe4293d42ad2396b649db8825fc822ecf6a489c5ccffa42149c330aced1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SUZa2oCfVjmHLF4pD4jCIPc8hNKBepfwwhaAAvRuGrqy4oiaB6twGT0UxbTpEPKNcZEhDG26OZmGUs+HTs36Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T06:14:22.153487Z","bundle_sha256":"dbd8a82c647b893952e5f6848ee11073040dab08e31dfff1b86afac6875e9f3d"}}