{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:4L7RZMV4XYO7Y2G6VEGZBJ7Q77","short_pith_number":"pith:4L7RZMV4","canonical_record":{"source":{"id":"2509.05428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-09-05T18:16:26Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"ae847b0518faaad04b9771b02783127637b055d9d10570cd966411c3f5d6d0e6","abstract_canon_sha256":"c0c33fbfa7005573642b20df7e4b2ef75cbe386017faa64339809675ec2b9def"},"schema_version":"1.0"},"canonical_sha256":"e2ff1cb2bcbe1dfc68dea90d90a7f0ffe1e98d83ea6d3f3d2dcb60086b637a4d","source":{"kind":"arxiv","id":"2509.05428","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.05428","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"arxiv_version","alias_value":"2509.05428v1","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.05428","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"pith_short_12","alias_value":"4L7RZMV4XYO7","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"pith_short_16","alias_value":"4L7RZMV4XYO7Y2G6","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"pith_short_8","alias_value":"4L7RZMV4","created_at":"2026-07-05T12:05:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:4L7RZMV4XYO7Y2G6VEGZBJ7Q77","target":"record","payload":{"canonical_record":{"source":{"id":"2509.05428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-09-05T18:16:26Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"ae847b0518faaad04b9771b02783127637b055d9d10570cd966411c3f5d6d0e6","abstract_canon_sha256":"c0c33fbfa7005573642b20df7e4b2ef75cbe386017faa64339809675ec2b9def"},"schema_version":"1.0"},"canonical_sha256":"e2ff1cb2bcbe1dfc68dea90d90a7f0ffe1e98d83ea6d3f3d2dcb60086b637a4d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:05:47.279074Z","signature_b64":"sGDuOBlquA6FIgyGpaltQ008MNeQ1tNZsrcRO75a4G3Tt7lrPDqyZxIQY7Z2e/N9HBjcH23QwjRiZ3sKY4wQAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e2ff1cb2bcbe1dfc68dea90d90a7f0ffe1e98d83ea6d3f3d2dcb60086b637a4d","last_reissued_at":"2026-07-05T12:05:47.278564Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:05:47.278564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.05428","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":"2026-07-05T12:05:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"phyPnJHJk0KFquZ97N7FR73GcGVte1HSfaRLAXiPjExuEJ/hjKCUVn0YlTYT0EL3ggst06mQwv1+tZh5YhsPCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T08:30:57.912238Z"},"content_sha256":"1c5024f2a2c4b50aaeda3ff88ad5bdf601b7abc6ad7d2e76d64fec64d3b1efb4","schema_version":"1.0","event_id":"sha256:1c5024f2a2c4b50aaeda3ff88ad5bdf601b7abc6ad7d2e76d64fec64d3b1efb4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:4L7RZMV4XYO7Y2G6VEGZBJ7Q77","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Disentangling Initial-State and Evolution Effects in Heavy-Ion Collisions Using EPOS and PHSD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Damien Vintache, Elena Bratkovskaya, Klaus Werner, Mahbobeh Jafarpour, Vadym Voronyuk","submitted_at":"2025-09-05T18:16:26Z","abstract_excerpt":"In this study we examine the impact of the initial stage and dynamical evolution on final-state observables in heavy-ion collisions. For this goal we develop a novel approach, EPOSir+PHSDe, which employs EPOS initial conditions as the starting point for parton and hadron evolution within the PHSD microscopic transport approach. By examining the space-time evolution of matter in this model and comparing to EPOS (which starts with an S-matrix approach for parallel scatterings for the initial conditions and uses a hydrodynamic evolution for the quark-gluon plasma stage with the UrQMD as afterburn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.05428","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2509.05428/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":"2026-07-05T12:05:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PLzxfvKMxevsc+j3oe6NrAfYf9IQBP13MjqJm3K3HrEyzPrsVz7zyfyrt4JwwUAIEECT2oQraLgcpIXEXWxHCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T08:30:57.912774Z"},"content_sha256":"148ae7458ab49ce93420d56d668346850ed1609166661843d0bde8a2be1b327f","schema_version":"1.0","event_id":"sha256:148ae7458ab49ce93420d56d668346850ed1609166661843d0bde8a2be1b327f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4L7RZMV4XYO7Y2G6VEGZBJ7Q77/bundle.json","state_url":"https://pith.science/pith/4L7RZMV4XYO7Y2G6VEGZBJ7Q77/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4L7RZMV4XYO7Y2G6VEGZBJ7Q77/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":"2026-08-17T08:30:57Z","links":{"resolver":"https://pith.science/pith/4L7RZMV4XYO7Y2G6VEGZBJ7Q77","bundle":"https://pith.science/pith/4L7RZMV4XYO7Y2G6VEGZBJ7Q77/bundle.json","state":"https://pith.science/pith/4L7RZMV4XYO7Y2G6VEGZBJ7Q77/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4L7RZMV4XYO7Y2G6VEGZBJ7Q77/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4L7RZMV4XYO7Y2G6VEGZBJ7Q77","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":"c0c33fbfa7005573642b20df7e4b2ef75cbe386017faa64339809675ec2b9def","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-09-05T18:16:26Z","title_canon_sha256":"ae847b0518faaad04b9771b02783127637b055d9d10570cd966411c3f5d6d0e6"},"schema_version":"1.0","source":{"id":"2509.05428","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.05428","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"arxiv_version","alias_value":"2509.05428v1","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.05428","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"pith_short_12","alias_value":"4L7RZMV4XYO7","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"pith_short_16","alias_value":"4L7RZMV4XYO7Y2G6","created_at":"2026-07-05T12:05:47Z"},{"alias_kind":"pith_short_8","alias_value":"4L7RZMV4","created_at":"2026-07-05T12:05:47Z"}],"graph_snapshots":[{"event_id":"sha256:148ae7458ab49ce93420d56d668346850ed1609166661843d0bde8a2be1b327f","target":"graph","created_at":"2026-07-05T12:05:47Z","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/2509.05428/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this study we examine the impact of the initial stage and dynamical evolution on final-state observables in heavy-ion collisions. For this goal we develop a novel approach, EPOSir+PHSDe, which employs EPOS initial conditions as the starting point for parton and hadron evolution within the PHSD microscopic transport approach. By examining the space-time evolution of matter in this model and comparing to EPOS (which starts with an S-matrix approach for parallel scatterings for the initial conditions and uses a hydrodynamic evolution for the quark-gluon plasma stage with the UrQMD as afterburn","authors_text":"Damien Vintache, Elena Bratkovskaya, Klaus Werner, Mahbobeh Jafarpour, Vadym Voronyuk","cross_cats":["hep-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-09-05T18:16:26Z","title":"Disentangling Initial-State and Evolution Effects in Heavy-Ion Collisions Using EPOS and PHSD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.05428","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":"sha256:1c5024f2a2c4b50aaeda3ff88ad5bdf601b7abc6ad7d2e76d64fec64d3b1efb4","target":"record","created_at":"2026-07-05T12:05:47Z","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":"c0c33fbfa7005573642b20df7e4b2ef75cbe386017faa64339809675ec2b9def","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-09-05T18:16:26Z","title_canon_sha256":"ae847b0518faaad04b9771b02783127637b055d9d10570cd966411c3f5d6d0e6"},"schema_version":"1.0","source":{"id":"2509.05428","kind":"arxiv","version":1}},"canonical_sha256":"e2ff1cb2bcbe1dfc68dea90d90a7f0ffe1e98d83ea6d3f3d2dcb60086b637a4d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2ff1cb2bcbe1dfc68dea90d90a7f0ffe1e98d83ea6d3f3d2dcb60086b637a4d","first_computed_at":"2026-07-05T12:05:47.278564Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:05:47.278564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sGDuOBlquA6FIgyGpaltQ008MNeQ1tNZsrcRO75a4G3Tt7lrPDqyZxIQY7Z2e/N9HBjcH23QwjRiZ3sKY4wQAw==","signature_status":"signed_v1","signed_at":"2026-07-05T12:05:47.279074Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.05428","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1c5024f2a2c4b50aaeda3ff88ad5bdf601b7abc6ad7d2e76d64fec64d3b1efb4","sha256:148ae7458ab49ce93420d56d668346850ed1609166661843d0bde8a2be1b327f"],"state_sha256":"0f95b024d179426c5ebc37523b4fa0d5af4a41a8cbdcc4465bba5b310211f0a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F6iJ2ow4P/206dIOQGOzq81yJXQoZasEeINGGHf7XIZD/+e7tzKThxAoAlop93LRsivNtdVz5pS3ivub728vDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T08:30:57.918522Z","bundle_sha256":"65a026a419ceef3a75a78232bd68712823d7663ae601f413c7b02bfed7548cff"}}