{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:FSIOKN74S334QJCUPKICTIIVDV","short_pith_number":"pith:FSIOKN74","canonical_record":{"source":{"id":"hep-ph/9705257","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1997-05-07T13:04:51Z","cross_cats_sorted":[],"title_canon_sha256":"d4a76e2254020d601f7e430cf7fe87cbd3942cdc596e663bc066f54df2e585c4","abstract_canon_sha256":"118e4497fa355a0e57ebaedc5c661e94731003de0d367f4497c25237bed47aff"},"schema_version":"1.0"},"canonical_sha256":"2c90e537fc96f7c824547a9029a1151d4e1b01c224119ee904e61cc00ebc4ebd","source":{"kind":"arxiv","id":"hep-ph/9705257","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9705257","created_at":"2026-05-18T01:06:08Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9705257v2","created_at":"2026-05-18T01:06:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9705257","created_at":"2026-05-18T01:06:08Z"},{"alias_kind":"pith_short_12","alias_value":"FSIOKN74S334","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"FSIOKN74S334QJCU","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"FSIOKN74","created_at":"2026-05-18T12:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:FSIOKN74S334QJCUPKICTIIVDV","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9705257","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1997-05-07T13:04:51Z","cross_cats_sorted":[],"title_canon_sha256":"d4a76e2254020d601f7e430cf7fe87cbd3942cdc596e663bc066f54df2e585c4","abstract_canon_sha256":"118e4497fa355a0e57ebaedc5c661e94731003de0d367f4497c25237bed47aff"},"schema_version":"1.0"},"canonical_sha256":"2c90e537fc96f7c824547a9029a1151d4e1b01c224119ee904e61cc00ebc4ebd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:08.897701Z","signature_b64":"0nGEPcL6aJmErWPczUTacKVFpIBEAw+30P5/wqplLwmpG2JdJP/iX37xhgW2Ccw/f3TOPS1PPHdzeZETPIsiCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2c90e537fc96f7c824547a9029a1151d4e1b01c224119ee904e61cc00ebc4ebd","last_reissued_at":"2026-05-18T01:06:08.896961Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:08.896961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9705257","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":"2026-05-18T01:06:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"veLjB1r5bT22MyOhch0FuWMpueu9b3AMg6m1QOmDGC0z9N7S0pZADi+Kja7E8Ye4AhlbNbPAnGuMpM5WiIGtBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T19:26:18.982299Z"},"content_sha256":"6b15e7209d7b01d2e5ab3f340aaad2a868ff272902fa857b654b4450cd7e7f49","schema_version":"1.0","event_id":"sha256:6b15e7209d7b01d2e5ab3f340aaad2a868ff272902fa857b654b4450cd7e7f49"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:FSIOKN74S334QJCUPKICTIIVDV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Production and absorption of $c \\bar{c}$ pairs in nuclear collisions at SPS energies","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"E. L. Bratkovskaya (Giessen Univ.), W. Cassing","submitted_at":"1997-05-07T13:04:51Z","abstract_excerpt":"We study the production of $c \\bar{c}$ pairs and dimuons from hard collisions in nuclear reactions within the covariant transport approach HSD, which describes successfully both hadronic and electromagnetic observables from p+A and A+A collisions from SIS to SPS energies. The production of $c \\bar{c}$ and Drell-Yan pairs is treated perturbatively employing experimental cross sections while the interactions of $c\\bar{c}$ pairs with hadrons are included by conventional cascade-type two-body collisions. Adopting 6mb for the $c \\bar{c}$-baryon cross sections the data on $J/\\Psi$ suppression in p+A"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9705257","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":""},"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":"2026-05-18T01:06:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kYdobQrC6P5DuBlBmI7vhYAGp97/p6KYkU6AmxGl0FJ6y8E7vQCNTbs4BBj67EWdyR1i87RJKB8qJa+EZpDwDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T19:26:18.982657Z"},"content_sha256":"fb3bab3c293f8afd91e2d9716cb840330c7dc63ebafd7fa5ab1fc118bd08633f","schema_version":"1.0","event_id":"sha256:fb3bab3c293f8afd91e2d9716cb840330c7dc63ebafd7fa5ab1fc118bd08633f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FSIOKN74S334QJCUPKICTIIVDV/bundle.json","state_url":"https://pith.science/pith/FSIOKN74S334QJCUPKICTIIVDV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FSIOKN74S334QJCUPKICTIIVDV/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":"2026-06-29T19:26:18Z","links":{"resolver":"https://pith.science/pith/FSIOKN74S334QJCUPKICTIIVDV","bundle":"https://pith.science/pith/FSIOKN74S334QJCUPKICTIIVDV/bundle.json","state":"https://pith.science/pith/FSIOKN74S334QJCUPKICTIIVDV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FSIOKN74S334QJCUPKICTIIVDV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:FSIOKN74S334QJCUPKICTIIVDV","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":"118e4497fa355a0e57ebaedc5c661e94731003de0d367f4497c25237bed47aff","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1997-05-07T13:04:51Z","title_canon_sha256":"d4a76e2254020d601f7e430cf7fe87cbd3942cdc596e663bc066f54df2e585c4"},"schema_version":"1.0","source":{"id":"hep-ph/9705257","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9705257","created_at":"2026-05-18T01:06:08Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9705257v2","created_at":"2026-05-18T01:06:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9705257","created_at":"2026-05-18T01:06:08Z"},{"alias_kind":"pith_short_12","alias_value":"FSIOKN74S334","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"FSIOKN74S334QJCU","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"FSIOKN74","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:fb3bab3c293f8afd91e2d9716cb840330c7dc63ebafd7fa5ab1fc118bd08633f","target":"graph","created_at":"2026-05-18T01:06:08Z","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 study the production of $c \\bar{c}$ pairs and dimuons from hard collisions in nuclear reactions within the covariant transport approach HSD, which describes successfully both hadronic and electromagnetic observables from p+A and A+A collisions from SIS to SPS energies. The production of $c \\bar{c}$ and Drell-Yan pairs is treated perturbatively employing experimental cross sections while the interactions of $c\\bar{c}$ pairs with hadrons are included by conventional cascade-type two-body collisions. Adopting 6mb for the $c \\bar{c}$-baryon cross sections the data on $J/\\Psi$ suppression in p+A","authors_text":"E. L. Bratkovskaya (Giessen Univ.), W. Cassing","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1997-05-07T13:04:51Z","title":"Production and absorption of $c \\bar{c}$ pairs in nuclear collisions at SPS energies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9705257","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":"sha256:6b15e7209d7b01d2e5ab3f340aaad2a868ff272902fa857b654b4450cd7e7f49","target":"record","created_at":"2026-05-18T01:06:08Z","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":"118e4497fa355a0e57ebaedc5c661e94731003de0d367f4497c25237bed47aff","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1997-05-07T13:04:51Z","title_canon_sha256":"d4a76e2254020d601f7e430cf7fe87cbd3942cdc596e663bc066f54df2e585c4"},"schema_version":"1.0","source":{"id":"hep-ph/9705257","kind":"arxiv","version":2}},"canonical_sha256":"2c90e537fc96f7c824547a9029a1151d4e1b01c224119ee904e61cc00ebc4ebd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2c90e537fc96f7c824547a9029a1151d4e1b01c224119ee904e61cc00ebc4ebd","first_computed_at":"2026-05-18T01:06:08.896961Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:08.896961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0nGEPcL6aJmErWPczUTacKVFpIBEAw+30P5/wqplLwmpG2JdJP/iX37xhgW2Ccw/f3TOPS1PPHdzeZETPIsiCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:08.897701Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9705257","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b15e7209d7b01d2e5ab3f340aaad2a868ff272902fa857b654b4450cd7e7f49","sha256:fb3bab3c293f8afd91e2d9716cb840330c7dc63ebafd7fa5ab1fc118bd08633f"],"state_sha256":"f2097e371fc4d22828ff7895c6c4f77814190fcd6fea4ecb2e556f76b601c43f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nfaXqtBYDin45Ffc+aET9PRySx8fICKe5hrPqnaxhlUhzEhcfeTH1/Xez6YPolL3L7fFtGOY7MXGciiWhaCOCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T19:26:18.984574Z","bundle_sha256":"e966ba0d7bc15e3088ac36255190093b04edde40e32acc063332c09aaa21939a"}}