{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:YTDG25CEFZAGYOGMIAIZAWNHSD","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":"3259b22c8c82b88240b2af3c54a1b952c3292584125d978142060fb78ff96f87","cross_cats_sorted":["hep-ex"],"license":"","primary_cat":"nucl-ex","submitted_at":"2003-04-28T22:18:26Z","title_canon_sha256":"99e81577b4a9a01f8d41711c187b90f7cd0016cfacd380d03313d0fa63e862b5"},"schema_version":"1.0","source":{"id":"nucl-ex/0304022","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-ex/0304022","created_at":"2026-07-04T15:32:32Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-ex/0304022v1","created_at":"2026-07-04T15:32:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-ex/0304022","created_at":"2026-07-04T15:32:32Z"},{"alias_kind":"pith_short_12","alias_value":"YTDG25CEFZAG","created_at":"2026-07-04T15:32:32Z"},{"alias_kind":"pith_short_16","alias_value":"YTDG25CEFZAGYOGM","created_at":"2026-07-04T15:32:32Z"},{"alias_kind":"pith_short_8","alias_value":"YTDG25CE","created_at":"2026-07-04T15:32:32Z"}],"graph_snapshots":[{"event_id":"sha256:fadafce18c2722d9606595fcaf8dd7b16ccedaf267c276a577624b8f0eb175ab","target":"graph","created_at":"2026-07-04T15:32:32Z","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/nucl-ex/0304022/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Transverse momentum spectra of neutral pions in the range 1 < p_T < 10 GeV/c have been measured at mid-rapidity by the PHENIX experiment at RHIC in Au+Au collisions at sqrt(s_NN) = 200 GeV. The pi^0 multiplicity in central reactions is significantly below the yields measured at the same sqrt(s_NN) in peripheral Au+Au and p+p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is ~2.5 at p_T = 2 GeV/c and increases to ~4-5 at p_T ~= 4 GeV/c. At larger p_T, the suppression remains constant within errors. The deficit is already apparent i","authors_text":"et al, PHENIX Collaboration, S.S. Adler","cross_cats":["hep-ex"],"headline":"","license":"","primary_cat":"nucl-ex","submitted_at":"2003-04-28T22:18:26Z","title":"Suppressed pi^0 Production at Large Transverse Momentum in Central Au+Au Collisions at sqrt(s_NN) = 200 GeV"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0304022","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":"sha256:6c69b64e34216435a39a8da96e100c749a4230d209c720b4e803d36880bc4120","target":"record","created_at":"2026-07-04T15:32:32Z","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":"3259b22c8c82b88240b2af3c54a1b952c3292584125d978142060fb78ff96f87","cross_cats_sorted":["hep-ex"],"license":"","primary_cat":"nucl-ex","submitted_at":"2003-04-28T22:18:26Z","title_canon_sha256":"99e81577b4a9a01f8d41711c187b90f7cd0016cfacd380d03313d0fa63e862b5"},"schema_version":"1.0","source":{"id":"nucl-ex/0304022","kind":"arxiv","version":1}},"canonical_sha256":"c4c66d74442e406c38cc40119059a790d522a7dbce7ca091dfea425536e6b0e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4c66d74442e406c38cc40119059a790d522a7dbce7ca091dfea425536e6b0e9","first_computed_at":"2026-07-04T15:32:32.730286Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:32:32.730286Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+ILQrXTTJBCQyk+ebS7fDSA5jcmCb/AIHQ25kij0FUnsZu2FO7D7GHDuMb49wRYPcfWnzYP4zmMsDbp48irWDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:32:32.730817Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-ex/0304022","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c69b64e34216435a39a8da96e100c749a4230d209c720b4e803d36880bc4120","sha256:fadafce18c2722d9606595fcaf8dd7b16ccedaf267c276a577624b8f0eb175ab"],"state_sha256":"9b34be6010c63cf8ea64b7643a0246e28fcbf9a085da3cab0f3ed7914b36ca03"}