{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:QZ5YBOFFN6VJKET3QNKETDYJL5","short_pith_number":"pith:QZ5YBOFF","canonical_record":{"source":{"id":"1807.01030","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-03T08:55:03Z","cross_cats_sorted":[],"title_canon_sha256":"cb196d196a20f0434f29335c6aa04007eb1eafa5563d49d20bc0116a4c7c715e","abstract_canon_sha256":"675ae59a6046e149642927dd95178cf019d54b1599fb9d057460bbca5506ebf2"},"schema_version":"1.0"},"canonical_sha256":"867b80b8a56faa95127b8354498f095f7b79151e96f5019a1bf69e1d74f25c26","source":{"kind":"arxiv","id":"1807.01030","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01030","created_at":"2026-05-18T00:08:06Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01030v1","created_at":"2026-05-18T00:08:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01030","created_at":"2026-05-18T00:08:06Z"},{"alias_kind":"pith_short_12","alias_value":"QZ5YBOFFN6VJ","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"QZ5YBOFFN6VJKET3","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"QZ5YBOFF","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:QZ5YBOFFN6VJKET3QNKETDYJL5","target":"record","payload":{"canonical_record":{"source":{"id":"1807.01030","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-03T08:55:03Z","cross_cats_sorted":[],"title_canon_sha256":"cb196d196a20f0434f29335c6aa04007eb1eafa5563d49d20bc0116a4c7c715e","abstract_canon_sha256":"675ae59a6046e149642927dd95178cf019d54b1599fb9d057460bbca5506ebf2"},"schema_version":"1.0"},"canonical_sha256":"867b80b8a56faa95127b8354498f095f7b79151e96f5019a1bf69e1d74f25c26","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:06.105357Z","signature_b64":"0037GrEBQZ/YFPyaRtfD4Z8DuMxzaIvI38v13SPv2yIWIYcFdfFyEHC54ulpQEKapFsYAbGAK3dOz0q2SHRFDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"867b80b8a56faa95127b8354498f095f7b79151e96f5019a1bf69e1d74f25c26","last_reissued_at":"2026-05-18T00:08:06.104870Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:06.104870Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.01030","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":"2026-05-18T00:08:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DDV08L5Hon7nQpIdyAjV03e6GGLDa7zboIPRlma3McQZ+/hL+5PQTjMEQ4YApWAbWiP8Z7fieBS7wuSUY0jeDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T12:10:22.463843Z"},"content_sha256":"d751e3a13387c27821c9b46390d96e2efc51c417ebef1e410885ededed84e15d","schema_version":"1.0","event_id":"sha256:d751e3a13387c27821c9b46390d96e2efc51c417ebef1e410885ededed84e15d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:QZ5YBOFFN6VJKET3QNKETDYJL5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Calculation of a complete set of spin observables for proton elastic scattering from stable and unstable nuclei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"B. C. Kimene Kaya, B. I. S. van der Ventel, R. A. Bark, W. A. Yahya","submitted_at":"2018-07-03T08:55:03Z","abstract_excerpt":"A microscopic study of proton elastic scattering from unstable nuclei at intermediate energies using a relativistic formalism is presented. We have employed both the original relativistic impulse approximation (IA1) and the generalised impulse approximation (IA2) formalisms to calculate the relativistic optical potentials, with target densities derived from relativistic mean field (RMF) theory using the NL3 and FSUGold parameter sets. Comparisons between the optical potentials computed using both IA1 and IA2 formalisms, and the different RMF Lagrangians are presented for both stable and unstab"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01030","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":"2026-05-18T00:08:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vAP7i9ovNygIFW+gWRZ9heih5z0u8wQyohIcBQbiRpGNMDgELKNC46HRMy/zuHXJHCFjNJL+c0k5HMat3acrCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T12:10:22.464187Z"},"content_sha256":"4c9c19d07744e1833933f12e058ce49dcc6ac3644986ede63c01c01632962cac","schema_version":"1.0","event_id":"sha256:4c9c19d07744e1833933f12e058ce49dcc6ac3644986ede63c01c01632962cac"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QZ5YBOFFN6VJKET3QNKETDYJL5/bundle.json","state_url":"https://pith.science/pith/QZ5YBOFFN6VJKET3QNKETDYJL5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QZ5YBOFFN6VJKET3QNKETDYJL5/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":"2026-06-20T12:10:22Z","links":{"resolver":"https://pith.science/pith/QZ5YBOFFN6VJKET3QNKETDYJL5","bundle":"https://pith.science/pith/QZ5YBOFFN6VJKET3QNKETDYJL5/bundle.json","state":"https://pith.science/pith/QZ5YBOFFN6VJKET3QNKETDYJL5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QZ5YBOFFN6VJKET3QNKETDYJL5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QZ5YBOFFN6VJKET3QNKETDYJL5","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":"675ae59a6046e149642927dd95178cf019d54b1599fb9d057460bbca5506ebf2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-03T08:55:03Z","title_canon_sha256":"cb196d196a20f0434f29335c6aa04007eb1eafa5563d49d20bc0116a4c7c715e"},"schema_version":"1.0","source":{"id":"1807.01030","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01030","created_at":"2026-05-18T00:08:06Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01030v1","created_at":"2026-05-18T00:08:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01030","created_at":"2026-05-18T00:08:06Z"},{"alias_kind":"pith_short_12","alias_value":"QZ5YBOFFN6VJ","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"QZ5YBOFFN6VJKET3","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"QZ5YBOFF","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:4c9c19d07744e1833933f12e058ce49dcc6ac3644986ede63c01c01632962cac","target":"graph","created_at":"2026-05-18T00:08:06Z","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 microscopic study of proton elastic scattering from unstable nuclei at intermediate energies using a relativistic formalism is presented. We have employed both the original relativistic impulse approximation (IA1) and the generalised impulse approximation (IA2) formalisms to calculate the relativistic optical potentials, with target densities derived from relativistic mean field (RMF) theory using the NL3 and FSUGold parameter sets. Comparisons between the optical potentials computed using both IA1 and IA2 formalisms, and the different RMF Lagrangians are presented for both stable and unstab","authors_text":"B. C. Kimene Kaya, B. I. S. van der Ventel, R. A. Bark, W. A. Yahya","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-03T08:55:03Z","title":"Calculation of a complete set of spin observables for proton elastic scattering from stable and unstable nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01030","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:d751e3a13387c27821c9b46390d96e2efc51c417ebef1e410885ededed84e15d","target":"record","created_at":"2026-05-18T00:08:06Z","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":"675ae59a6046e149642927dd95178cf019d54b1599fb9d057460bbca5506ebf2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-03T08:55:03Z","title_canon_sha256":"cb196d196a20f0434f29335c6aa04007eb1eafa5563d49d20bc0116a4c7c715e"},"schema_version":"1.0","source":{"id":"1807.01030","kind":"arxiv","version":1}},"canonical_sha256":"867b80b8a56faa95127b8354498f095f7b79151e96f5019a1bf69e1d74f25c26","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"867b80b8a56faa95127b8354498f095f7b79151e96f5019a1bf69e1d74f25c26","first_computed_at":"2026-05-18T00:08:06.104870Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:06.104870Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0037GrEBQZ/YFPyaRtfD4Z8DuMxzaIvI38v13SPv2yIWIYcFdfFyEHC54ulpQEKapFsYAbGAK3dOz0q2SHRFDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:06.105357Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.01030","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d751e3a13387c27821c9b46390d96e2efc51c417ebef1e410885ededed84e15d","sha256:4c9c19d07744e1833933f12e058ce49dcc6ac3644986ede63c01c01632962cac"],"state_sha256":"8b3fdc1d47740d78b34d52c29c1f358e61d01ca869caf0b11c44d45ab4a75598"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GBrQA0kSGn0/lbxXAZde54bcoB8MQnhoUf6VMkub3Jhe79O93HvlkdhNMJz+RjMX/JkFnWuvvZjvhU4R8xWlCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T12:10:22.466122Z","bundle_sha256":"2cc6eace9817e82e993606c531803433972ed109f4ecc8f978b0ea29d4e29c00"}}