{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:THGEVR3I7OQVVGUCX7LF6CXFMB","short_pith_number":"pith:THGEVR3I","canonical_record":{"source":{"id":"0912.3623","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-18T11:05:21Z","cross_cats_sorted":[],"title_canon_sha256":"41ef27b01e0069174c7f7ed545208528fc023602919d1387dc62ce846f868372","abstract_canon_sha256":"fc23c8e787d3bb8961d593a9d26de59f63e6674e69106f054f2f0f3727949401"},"schema_version":"1.0"},"canonical_sha256":"99cc4ac768fba15a9a82bfd65f0ae56061c31acf4080bd12ace0c8a44390ae97","source":{"kind":"arxiv","id":"0912.3623","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.3623","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.3623v1","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.3623","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"THGEVR3I7OQV","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"THGEVR3I7OQVVGUC","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"THGEVR3I","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:THGEVR3I7OQVVGUCX7LF6CXFMB","target":"record","payload":{"canonical_record":{"source":{"id":"0912.3623","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-18T11:05:21Z","cross_cats_sorted":[],"title_canon_sha256":"41ef27b01e0069174c7f7ed545208528fc023602919d1387dc62ce846f868372","abstract_canon_sha256":"fc23c8e787d3bb8961d593a9d26de59f63e6674e69106f054f2f0f3727949401"},"schema_version":"1.0"},"canonical_sha256":"99cc4ac768fba15a9a82bfd65f0ae56061c31acf4080bd12ace0c8a44390ae97","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:56.031887Z","signature_b64":"qCc5WrKU/f6b9t7nBslYDh1k7Omlum90mkgH9dzil+xLzWRbFqWX3fcr3xot/wRIMfr97gYhklizLQmvCJQbCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"99cc4ac768fba15a9a82bfd65f0ae56061c31acf4080bd12ace0c8a44390ae97","last_reissued_at":"2026-05-18T02:33:56.031489Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:56.031489Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0912.3623","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":"2026-05-18T02:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L3pqWGW/DsVl106ewy9F8bcXCvhNW//HyAMXxQEOG6M4FuyKp9cHXig055NmXghrXBERo9j6eo+ytdsBYNtWCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T16:01:43.526296Z"},"content_sha256":"6d53651762fb6701da8a9ce6a4eb9dff080bd627286ac3f65e333931f5a82c3a","schema_version":"1.0","event_id":"sha256:6d53651762fb6701da8a9ce6a4eb9dff080bd627286ac3f65e333931f5a82c3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:THGEVR3I7OQVVGUCX7LF6CXFMB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Are eccentricity fluctuations able to explain the centrality dependence of $v_4$?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Cl\\'ement Gombeaud, Jean-Yves Ollitrault","submitted_at":"2009-12-18T11:05:21Z","abstract_excerpt":"The fourth harmonic of the azimuthal distribution of particles $v_4$ has been measured for Au-Au collisions at the Relativistic Heavy Ion Collider (RHIC). The centrality dependence of $v_4$ does not agree with the prediction from hydrodynamics. In particular, the ratio $v_4/(v_2)^2$, where $v_2$ denotes the second harmonic of the azimuthal distribution of particles, is significantly larger than predicted by hydrodynamics. We argue that this discrepancy is mostly due to elliptic flow ($v_2$) fluctuations. We evaluate these fluctuations on the basis of a Monte Carlo Glauber calculation. The effe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.3623","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":"2026-05-18T02:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+P85YJMNizDSCFsRJFCOZCjnS7jKeVJlSxmQTj/M+RGKvWupocnHO/MYs8YFu4wQ0rrCOS4u8j39sEgu39hSCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T16:01:43.526927Z"},"content_sha256":"a19ed886c8e908fcea0093fcf26859e1784b7b3589ef7576ab4d33cdc77f59d8","schema_version":"1.0","event_id":"sha256:a19ed886c8e908fcea0093fcf26859e1784b7b3589ef7576ab4d33cdc77f59d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/THGEVR3I7OQVVGUCX7LF6CXFMB/bundle.json","state_url":"https://pith.science/pith/THGEVR3I7OQVVGUCX7LF6CXFMB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/THGEVR3I7OQVVGUCX7LF6CXFMB/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":"2026-06-06T16:01:43Z","links":{"resolver":"https://pith.science/pith/THGEVR3I7OQVVGUCX7LF6CXFMB","bundle":"https://pith.science/pith/THGEVR3I7OQVVGUCX7LF6CXFMB/bundle.json","state":"https://pith.science/pith/THGEVR3I7OQVVGUCX7LF6CXFMB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/THGEVR3I7OQVVGUCX7LF6CXFMB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:THGEVR3I7OQVVGUCX7LF6CXFMB","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":"fc23c8e787d3bb8961d593a9d26de59f63e6674e69106f054f2f0f3727949401","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-18T11:05:21Z","title_canon_sha256":"41ef27b01e0069174c7f7ed545208528fc023602919d1387dc62ce846f868372"},"schema_version":"1.0","source":{"id":"0912.3623","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.3623","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.3623v1","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.3623","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"THGEVR3I7OQV","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"THGEVR3I7OQVVGUC","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"THGEVR3I","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:a19ed886c8e908fcea0093fcf26859e1784b7b3589ef7576ab4d33cdc77f59d8","target":"graph","created_at":"2026-05-18T02:33:56Z","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":"The fourth harmonic of the azimuthal distribution of particles $v_4$ has been measured for Au-Au collisions at the Relativistic Heavy Ion Collider (RHIC). The centrality dependence of $v_4$ does not agree with the prediction from hydrodynamics. In particular, the ratio $v_4/(v_2)^2$, where $v_2$ denotes the second harmonic of the azimuthal distribution of particles, is significantly larger than predicted by hydrodynamics. We argue that this discrepancy is mostly due to elliptic flow ($v_2$) fluctuations. We evaluate these fluctuations on the basis of a Monte Carlo Glauber calculation. The effe","authors_text":"Cl\\'ement Gombeaud, Jean-Yves Ollitrault","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-18T11:05:21Z","title":"Are eccentricity fluctuations able to explain the centrality dependence of $v_4$?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.3623","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":"sha256:6d53651762fb6701da8a9ce6a4eb9dff080bd627286ac3f65e333931f5a82c3a","target":"record","created_at":"2026-05-18T02:33:56Z","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":"fc23c8e787d3bb8961d593a9d26de59f63e6674e69106f054f2f0f3727949401","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-18T11:05:21Z","title_canon_sha256":"41ef27b01e0069174c7f7ed545208528fc023602919d1387dc62ce846f868372"},"schema_version":"1.0","source":{"id":"0912.3623","kind":"arxiv","version":1}},"canonical_sha256":"99cc4ac768fba15a9a82bfd65f0ae56061c31acf4080bd12ace0c8a44390ae97","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99cc4ac768fba15a9a82bfd65f0ae56061c31acf4080bd12ace0c8a44390ae97","first_computed_at":"2026-05-18T02:33:56.031489Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:56.031489Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qCc5WrKU/f6b9t7nBslYDh1k7Omlum90mkgH9dzil+xLzWRbFqWX3fcr3xot/wRIMfr97gYhklizLQmvCJQbCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:56.031887Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.3623","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6d53651762fb6701da8a9ce6a4eb9dff080bd627286ac3f65e333931f5a82c3a","sha256:a19ed886c8e908fcea0093fcf26859e1784b7b3589ef7576ab4d33cdc77f59d8"],"state_sha256":"70ed38d190e6a87237de87695da6867321fcbf5b57eea9f31f82ded33ac5c425"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xPDgobA06QF2H4ERRcDCoz+Wu//c9WNL9h/8Wqau3JPiRn29yB0MK/J9dv5YO8qq6vqGPdQaA/FNFcR/tP/5AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T16:01:43.530226Z","bundle_sha256":"a33bd15e191c2989a34d187b35f576d6fa8eff3c781c3637ab22bc82fd217725"}}