{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:2YNF3GNXPDCPZHIX2BR6CMCDUY","short_pith_number":"pith:2YNF3GNX","canonical_record":{"source":{"id":"nucl-th/9910010","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"1999-10-04T18:21:22Z","cross_cats_sorted":[],"title_canon_sha256":"1149dd29e30c00f98f189ffb8cb670a3e9637112379a431db010b5ba2c156480","abstract_canon_sha256":"c4ed91f6d9be48140e4c74a03815e57bc66b2559adbaec31eb04693e01f70c48"},"schema_version":"1.0"},"canonical_sha256":"d61a5d99b778c4fc9d17d063e13043a61b8544a87e7e3b36d1e0e973c3e81212","source":{"kind":"arxiv","id":"nucl-th/9910010","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9910010","created_at":"2026-05-18T04:24:14Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9910010v2","created_at":"2026-05-18T04:24:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9910010","created_at":"2026-05-18T04:24:14Z"},{"alias_kind":"pith_short_12","alias_value":"2YNF3GNXPDCP","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"2YNF3GNXPDCPZHIX","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"2YNF3GNX","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:2YNF3GNXPDCPZHIX2BR6CMCDUY","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-th/9910010","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"1999-10-04T18:21:22Z","cross_cats_sorted":[],"title_canon_sha256":"1149dd29e30c00f98f189ffb8cb670a3e9637112379a431db010b5ba2c156480","abstract_canon_sha256":"c4ed91f6d9be48140e4c74a03815e57bc66b2559adbaec31eb04693e01f70c48"},"schema_version":"1.0"},"canonical_sha256":"d61a5d99b778c4fc9d17d063e13043a61b8544a87e7e3b36d1e0e973c3e81212","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:24:14.620004Z","signature_b64":"ON8zfj8uD8SKTPi/nIDbA9g1+LHRqVL61ExbuFSOMH1Xhn/qDxjWJvrYf+lJN1sVhMDMTTDlYA9LihDpi53yCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d61a5d99b778c4fc9d17d063e13043a61b8544a87e7e3b36d1e0e973c3e81212","last_reissued_at":"2026-05-18T04:24:14.619561Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:24:14.619561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-th/9910010","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":"2026-05-18T04:24:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/cWD2khUKlKxCnYaVSv2PliFOQKdix5wmbMJNiUbs6pHD9TR6w+xAJq1lSQnMDJrMRPP3aBByeiRi+GrnQfpCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T16:51:28.483966Z"},"content_sha256":"a839ba837493ddecead23980485c815a3ca430ea0a62492d6cc6145cf04a8093","schema_version":"1.0","event_id":"sha256:a839ba837493ddecead23980485c815a3ca430ea0a62492d6cc6145cf04a8093"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:2YNF3GNXPDCPZHIX2BR6CMCDUY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Threshold Behaviour of Meson-Nucleon-$S_{11}$(1535) Vertexfunctions and Determination of the $S_{11}$(1535) Mixing Angle","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"F. Kleefeld","submitted_at":"1999-10-04T18:21:22Z","abstract_excerpt":"A new method for the determination of the spin-1/2-3/2-mixing angle and the range parameter of the quarkmodel wavefunction of the resonance $S^-_{11}(1535)$ is presented. The method ist based on a quantitative calculation of the total cross section of $pp\\to pp\\eta$ at threshold. The quantitative on-shell treatment of ISI and FSI is discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9910010","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":""},"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":"2026-05-18T04:24:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z+2ORhmXr2wLBJil7sGJ3jB1+ocHLFYt9zQy2MuMXIRSiX+eMPZDmGd6cDWcSNZ4fZx3/3v5YisiGhITZuXVCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T16:51:28.484302Z"},"content_sha256":"30adfe7bb0a948694576cf3db9d34048f128e9a6770fcf45941b7f3e1c0d9f34","schema_version":"1.0","event_id":"sha256:30adfe7bb0a948694576cf3db9d34048f128e9a6770fcf45941b7f3e1c0d9f34"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2YNF3GNXPDCPZHIX2BR6CMCDUY/bundle.json","state_url":"https://pith.science/pith/2YNF3GNXPDCPZHIX2BR6CMCDUY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2YNF3GNXPDCPZHIX2BR6CMCDUY/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":"2026-06-27T16:51:28Z","links":{"resolver":"https://pith.science/pith/2YNF3GNXPDCPZHIX2BR6CMCDUY","bundle":"https://pith.science/pith/2YNF3GNXPDCPZHIX2BR6CMCDUY/bundle.json","state":"https://pith.science/pith/2YNF3GNXPDCPZHIX2BR6CMCDUY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2YNF3GNXPDCPZHIX2BR6CMCDUY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:2YNF3GNXPDCPZHIX2BR6CMCDUY","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":"c4ed91f6d9be48140e4c74a03815e57bc66b2559adbaec31eb04693e01f70c48","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1999-10-04T18:21:22Z","title_canon_sha256":"1149dd29e30c00f98f189ffb8cb670a3e9637112379a431db010b5ba2c156480"},"schema_version":"1.0","source":{"id":"nucl-th/9910010","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9910010","created_at":"2026-05-18T04:24:14Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9910010v2","created_at":"2026-05-18T04:24:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9910010","created_at":"2026-05-18T04:24:14Z"},{"alias_kind":"pith_short_12","alias_value":"2YNF3GNXPDCP","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"2YNF3GNXPDCPZHIX","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"2YNF3GNX","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:30adfe7bb0a948694576cf3db9d34048f128e9a6770fcf45941b7f3e1c0d9f34","target":"graph","created_at":"2026-05-18T04:24:14Z","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":"A new method for the determination of the spin-1/2-3/2-mixing angle and the range parameter of the quarkmodel wavefunction of the resonance $S^-_{11}(1535)$ is presented. The method ist based on a quantitative calculation of the total cross section of $pp\\to pp\\eta$ at threshold. The quantitative on-shell treatment of ISI and FSI is discussed.","authors_text":"F. Kleefeld","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"1999-10-04T18:21:22Z","title":"Threshold Behaviour of Meson-Nucleon-$S_{11}$(1535) Vertexfunctions and Determination of the $S_{11}$(1535) Mixing Angle"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9910010","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:a839ba837493ddecead23980485c815a3ca430ea0a62492d6cc6145cf04a8093","target":"record","created_at":"2026-05-18T04:24:14Z","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":"c4ed91f6d9be48140e4c74a03815e57bc66b2559adbaec31eb04693e01f70c48","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1999-10-04T18:21:22Z","title_canon_sha256":"1149dd29e30c00f98f189ffb8cb670a3e9637112379a431db010b5ba2c156480"},"schema_version":"1.0","source":{"id":"nucl-th/9910010","kind":"arxiv","version":2}},"canonical_sha256":"d61a5d99b778c4fc9d17d063e13043a61b8544a87e7e3b36d1e0e973c3e81212","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d61a5d99b778c4fc9d17d063e13043a61b8544a87e7e3b36d1e0e973c3e81212","first_computed_at":"2026-05-18T04:24:14.619561Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:24:14.619561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ON8zfj8uD8SKTPi/nIDbA9g1+LHRqVL61ExbuFSOMH1Xhn/qDxjWJvrYf+lJN1sVhMDMTTDlYA9LihDpi53yCg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:24:14.620004Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/9910010","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a839ba837493ddecead23980485c815a3ca430ea0a62492d6cc6145cf04a8093","sha256:30adfe7bb0a948694576cf3db9d34048f128e9a6770fcf45941b7f3e1c0d9f34"],"state_sha256":"87da0ca1383584f4ba7bf9969b23fe6261e4bca35a2c739b95b74eabf9e51a0f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8wfYV7yahgIZ4hmqlV8Urf98dbFBoOFmSc/N9EEJwDTDJ+MAv1qOWe5BZdbcGwmCtoXz+8+JK6Zd1BHdaBfRBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T16:51:28.486102Z","bundle_sha256":"3cd8ddbb49f424546d42a5bd5a35fc511d072776c340b4b1ff726bf49a044041"}}