{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LXUCDOOADPXMS6HRXJSG2JYAFR","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":"78c096eee38296e150bcb9c7932ccbdb40490497689a9502d899b88ffc79ae32","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-08-08T11:09:57Z","title_canon_sha256":"a1e6e4b21fc1a358cc826c6916a76c460cf634e97132c10de163fdfcd9119d5d"},"schema_version":"1.0","source":{"id":"1208.1643","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.1643","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"arxiv_version","alias_value":"1208.1643v1","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.1643","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"pith_short_12","alias_value":"LXUCDOOADPXM","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LXUCDOOADPXMS6HR","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LXUCDOOA","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:21615f341dc7dd5d4f57daec0f75370316150eb395377ac9c64b44acb9795d97","target":"graph","created_at":"2026-05-18T03:48:45Z","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":"We implement a Langevin approach for the transport of charm quarks in the UrQMD (hydrodynamics + Boltzmann) hybrid model. Due to the inclusion of event-by-event fluctuations and a full (3+1) dimensional hydrodynamic evolution, this approach provides a more realistic model for the evolution of the matter produced in heavy ion collisions as compared to simple homogeneous fireball expansions usually employed. As drag and diffusion coefficients we use a resonance approach for elastic heavy-quark scattering and assume a decoupling temperature of the charm quarks from the hot medium of 130 MeV. A co","authors_text":"Hendrik van Hees, Jan Steinheimer, Marcus Bleicher, Thomas Lang","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-08-08T11:09:57Z","title":"Charm quark transport in Pb+Pb reactions at sqrt{s}_NN=2.76 TeV from a (3+1) dimensional hybrid approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.1643","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":"sha256:500fb3d92816e0c8b46f3c67df17b2d126ca8638b21fcdb037c52f2b0b77c95e","target":"record","created_at":"2026-05-18T03:48:45Z","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":"78c096eee38296e150bcb9c7932ccbdb40490497689a9502d899b88ffc79ae32","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-08-08T11:09:57Z","title_canon_sha256":"a1e6e4b21fc1a358cc826c6916a76c460cf634e97132c10de163fdfcd9119d5d"},"schema_version":"1.0","source":{"id":"1208.1643","kind":"arxiv","version":1}},"canonical_sha256":"5de821b9c01beec978f1ba646d27002c7a67fffcb85f158e2801ca9457a7f435","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5de821b9c01beec978f1ba646d27002c7a67fffcb85f158e2801ca9457a7f435","first_computed_at":"2026-05-18T03:48:45.984569Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:48:45.984569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SarpEDPFcwoqXxFZaZ9x5Qocz+5EUNcL8xUj8N6aI8gIHQsL0wmdrkft1d9dQQbk3spBjsn8/0MpbCg+0F/LDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:48:45.985118Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.1643","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:500fb3d92816e0c8b46f3c67df17b2d126ca8638b21fcdb037c52f2b0b77c95e","sha256:21615f341dc7dd5d4f57daec0f75370316150eb395377ac9c64b44acb9795d97"],"state_sha256":"a8ea8e413c8bb21c5041a4362952ea0f031c919e5ee0e146ac2ee64d099ef761"}