{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:7VIN7VNXEX3WRVFBVDURJGFIEW","short_pith_number":"pith:7VIN7VNX","canonical_record":{"source":{"id":"2010.15134","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-10-28T18:00:03Z","cross_cats_sorted":["hep-ph","nucl-ex"],"title_canon_sha256":"165ddff64083fc937c5020118c18b66d781ad4eb6c008266c99b795801c07520","abstract_canon_sha256":"115c2262ee757adc27013b7be7a5b156788451ed83afe327dce2899fc4f48fab"},"schema_version":"1.0"},"canonical_sha256":"fd50dfd5b725f768d4a1a8e91498a825b3e551865f4a8ba08d530ebd2040c5ae","source":{"kind":"arxiv","id":"2010.15134","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.15134","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"arxiv_version","alias_value":"2010.15134v2","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.15134","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"pith_short_12","alias_value":"7VIN7VNXEX3W","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"pith_short_16","alias_value":"7VIN7VNXEX3WRVFB","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"pith_short_8","alias_value":"7VIN7VNX","created_at":"2026-07-05T02:43:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:7VIN7VNXEX3WRVFBVDURJGFIEW","target":"record","payload":{"canonical_record":{"source":{"id":"2010.15134","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-10-28T18:00:03Z","cross_cats_sorted":["hep-ph","nucl-ex"],"title_canon_sha256":"165ddff64083fc937c5020118c18b66d781ad4eb6c008266c99b795801c07520","abstract_canon_sha256":"115c2262ee757adc27013b7be7a5b156788451ed83afe327dce2899fc4f48fab"},"schema_version":"1.0"},"canonical_sha256":"fd50dfd5b725f768d4a1a8e91498a825b3e551865f4a8ba08d530ebd2040c5ae","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:43:10.786859Z","signature_b64":"vmdkLhpE9jm6+HfSz7O8bYDzWmGOcrD/NxDYQ1yCrCEHZ4GXLSzm0I517Yy+JcdLL7BHVY78Q3kKB4bpqrN7Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd50dfd5b725f768d4a1a8e91498a825b3e551865f4a8ba08d530ebd2040c5ae","last_reissued_at":"2026-07-05T02:43:10.786386Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:43:10.786386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.15134","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":"2026-07-05T02:43:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MiJl6/RiuRzBaUwOIVAlODXmHomIYtwvXaFpA+6nqij2xyTGm3+v2/GYN/NEySMR83bhq97okYFsY6spytMADQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:18:44.583067Z"},"content_sha256":"e0e58e83ba0faa51ba48b275c1adba1d295fe5ea0fb9bf14eecab36555df3b17","schema_version":"1.0","event_id":"sha256:e0e58e83ba0faa51ba48b275c1adba1d295fe5ea0fb9bf14eecab36555df3b17"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:7VIN7VNXEX3WRVFBVDURJGFIEW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bayesian analysis of heavy ion collisions with the heavy ion computational framework Trajectum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-ex"],"primary_cat":"nucl-th","authors_text":"Govert Nijs, Raimond Snellings, Umut G\\\"ursoy, Wilke van der Schee","submitted_at":"2020-10-28T18:00:03Z","abstract_excerpt":"We introduce a model for heavy ion collisions named Trajectum, which includes an expanded initial stage with a variable free streaming velocity $v_{\\rm fs}$ and a hydrodynamic stage with three varying second order transport coefficients. We describe how to obtain a Gaussian Emulator for this 20-parameter model and show results for key observables. This emulator can be used to obtain Bayesian posterior estimates on the parameters, which we test by an elaborate closure test as well as a convergence study. Lastly, we employ the optimal values of the parameters found in [1] to perform a detailed c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.15134","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.15134/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":"2026-07-05T02:43:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kpT7z250fZlQMzymmevPDV4gRklBmewwwnros9vGhXzeT2zWjA22ebT8HfO3P5q3BcaQ93AIX8j0Ou1JkLC0Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:18:44.583574Z"},"content_sha256":"c78a7db4c107a4e42534930161e3adf8c745d5030408f128433e647ca20f0ae0","schema_version":"1.0","event_id":"sha256:c78a7db4c107a4e42534930161e3adf8c745d5030408f128433e647ca20f0ae0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7VIN7VNXEX3WRVFBVDURJGFIEW/bundle.json","state_url":"https://pith.science/pith/7VIN7VNXEX3WRVFBVDURJGFIEW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7VIN7VNXEX3WRVFBVDURJGFIEW/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":"2026-08-05T15:18:44Z","links":{"resolver":"https://pith.science/pith/7VIN7VNXEX3WRVFBVDURJGFIEW","bundle":"https://pith.science/pith/7VIN7VNXEX3WRVFBVDURJGFIEW/bundle.json","state":"https://pith.science/pith/7VIN7VNXEX3WRVFBVDURJGFIEW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7VIN7VNXEX3WRVFBVDURJGFIEW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:7VIN7VNXEX3WRVFBVDURJGFIEW","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":"115c2262ee757adc27013b7be7a5b156788451ed83afe327dce2899fc4f48fab","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-10-28T18:00:03Z","title_canon_sha256":"165ddff64083fc937c5020118c18b66d781ad4eb6c008266c99b795801c07520"},"schema_version":"1.0","source":{"id":"2010.15134","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.15134","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"arxiv_version","alias_value":"2010.15134v2","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.15134","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"pith_short_12","alias_value":"7VIN7VNXEX3W","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"pith_short_16","alias_value":"7VIN7VNXEX3WRVFB","created_at":"2026-07-05T02:43:10Z"},{"alias_kind":"pith_short_8","alias_value":"7VIN7VNX","created_at":"2026-07-05T02:43:10Z"}],"graph_snapshots":[{"event_id":"sha256:c78a7db4c107a4e42534930161e3adf8c745d5030408f128433e647ca20f0ae0","target":"graph","created_at":"2026-07-05T02:43:10Z","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/2010.15134/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We introduce a model for heavy ion collisions named Trajectum, which includes an expanded initial stage with a variable free streaming velocity $v_{\\rm fs}$ and a hydrodynamic stage with three varying second order transport coefficients. We describe how to obtain a Gaussian Emulator for this 20-parameter model and show results for key observables. This emulator can be used to obtain Bayesian posterior estimates on the parameters, which we test by an elaborate closure test as well as a convergence study. Lastly, we employ the optimal values of the parameters found in [1] to perform a detailed c","authors_text":"Govert Nijs, Raimond Snellings, Umut G\\\"ursoy, Wilke van der Schee","cross_cats":["hep-ph","nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-10-28T18:00:03Z","title":"Bayesian analysis of heavy ion collisions with the heavy ion computational framework Trajectum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.15134","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:e0e58e83ba0faa51ba48b275c1adba1d295fe5ea0fb9bf14eecab36555df3b17","target":"record","created_at":"2026-07-05T02:43:10Z","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":"115c2262ee757adc27013b7be7a5b156788451ed83afe327dce2899fc4f48fab","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-10-28T18:00:03Z","title_canon_sha256":"165ddff64083fc937c5020118c18b66d781ad4eb6c008266c99b795801c07520"},"schema_version":"1.0","source":{"id":"2010.15134","kind":"arxiv","version":2}},"canonical_sha256":"fd50dfd5b725f768d4a1a8e91498a825b3e551865f4a8ba08d530ebd2040c5ae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd50dfd5b725f768d4a1a8e91498a825b3e551865f4a8ba08d530ebd2040c5ae","first_computed_at":"2026-07-05T02:43:10.786386Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:43:10.786386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vmdkLhpE9jm6+HfSz7O8bYDzWmGOcrD/NxDYQ1yCrCEHZ4GXLSzm0I517Yy+JcdLL7BHVY78Q3kKB4bpqrN7Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:43:10.786859Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.15134","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0e58e83ba0faa51ba48b275c1adba1d295fe5ea0fb9bf14eecab36555df3b17","sha256:c78a7db4c107a4e42534930161e3adf8c745d5030408f128433e647ca20f0ae0"],"state_sha256":"7fe06d4e22ffb38c935ee763b99ff33967423294f57da6a785ee7ca4bd5f8d92"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i2NTXvKjVn8yR96R65LiAT1XW8PJPs5pjvb2uAqHu7zNmiyDZoMO3DOUrwjtwNAJkPYdwxR0gzUtHj3RwKj1Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T15:18:44.587270Z","bundle_sha256":"4f9df683df38be68f5eb250dfecc4d01457802a8717dd62985eb71b8a2919868"}}