{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:YZXS463A52D3FCCI4WYIQQRYX7","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":"96534a9723a3c73c0d3d91e0a26aed09a1461fe37991fde757978099968a514d","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2002-06-24T21:52:08Z","title_canon_sha256":"161ccb222a74d333a3271dbb2b07e071519801b9d45d7066c2e73d6347fff163"},"schema_version":"1.0","source":{"id":"nucl-th/0206062","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0206062","created_at":"2026-05-18T00:37:07Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0206062v2","created_at":"2026-05-18T00:37:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0206062","created_at":"2026-05-18T00:37:07Z"},{"alias_kind":"pith_short_12","alias_value":"YZXS463A52D3","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"YZXS463A52D3FCCI","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"YZXS463A","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:8ee8fea8bf13108d1fdc64867796106d6ead04e763c104deb2b41868da6b2e4a","target":"graph","created_at":"2026-05-18T00:37:07Z","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":"Heavy ion collisions at intermediate energies can be studied in the context of the Vlasov-Uehling-Uhlenbeck (VUU) model. One of the main features in this model is the nucleon-nucleon (NN) cross section in the collisional term. Quark interchange plays a role in the NN interaction and its effect can be observed in the cross section. We explore the possibility that quark interchange effects can appear in observables at energies lower than RHIC.","authors_text":"D. Hadjimichef, D. T. da Silva","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"2002-06-24T21:52:08Z","title":"Heavy ion collisions at intermediate energies in a quark-gluon exchange framework"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0206062","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":"sha256:48b9af41bae50398ba26edd779237a6f3e7bf1729ecce764c884b820f33fbcf9","target":"record","created_at":"2026-05-18T00:37:07Z","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":"96534a9723a3c73c0d3d91e0a26aed09a1461fe37991fde757978099968a514d","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2002-06-24T21:52:08Z","title_canon_sha256":"161ccb222a74d333a3271dbb2b07e071519801b9d45d7066c2e73d6347fff163"},"schema_version":"1.0","source":{"id":"nucl-th/0206062","kind":"arxiv","version":2}},"canonical_sha256":"c66f2e7b60ee87b28848e5b0884238bffeee4a6fc22d90600f640d52c687d100","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c66f2e7b60ee87b28848e5b0884238bffeee4a6fc22d90600f640d52c687d100","first_computed_at":"2026-05-18T00:37:07.394709Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:37:07.394709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NDu8zkzbSOIuAI+n/QCQgJOo8CFaXa8PPN/IrZ7hmaaYveDn9wytK4HPFRB1h3mrUI92i70T29bixG8ohFcICA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:37:07.395231Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/0206062","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:48b9af41bae50398ba26edd779237a6f3e7bf1729ecce764c884b820f33fbcf9","sha256:8ee8fea8bf13108d1fdc64867796106d6ead04e763c104deb2b41868da6b2e4a"],"state_sha256":"f11a8b98be12b18dac1950146349f61ff87b87aee93b18be568f171535bd0d63"}