{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:IJ7SAESKWCZN7M2GFNIRK4AHMT","short_pith_number":"pith:IJ7SAESK","canonical_record":{"source":{"id":"nucl-ex/0011016","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2000-11-22T17:59:16Z","cross_cats_sorted":[],"title_canon_sha256":"9d7a162a8a6a2f0c36f057133793f8f67ccf801cc5a8c84db00da80a7ca666e3","abstract_canon_sha256":"e8ca8323d6544426f02b509b69d018a14395b959183ae3bbc582eb7bb7645183"},"schema_version":"1.0"},"canonical_sha256":"427f20124ab0b2dfb3462b5115700764e1c7341a8959b2928c620f76a3a28b3b","source":{"kind":"arxiv","id":"nucl-ex/0011016","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-ex/0011016","created_at":"2026-05-18T04:31:31Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-ex/0011016v1","created_at":"2026-05-18T04:31:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-ex/0011016","created_at":"2026-05-18T04:31:31Z"},{"alias_kind":"pith_short_12","alias_value":"IJ7SAESKWCZN","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"IJ7SAESKWCZN7M2G","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"IJ7SAESK","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:IJ7SAESKWCZN7M2GFNIRK4AHMT","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-ex/0011016","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2000-11-22T17:59:16Z","cross_cats_sorted":[],"title_canon_sha256":"9d7a162a8a6a2f0c36f057133793f8f67ccf801cc5a8c84db00da80a7ca666e3","abstract_canon_sha256":"e8ca8323d6544426f02b509b69d018a14395b959183ae3bbc582eb7bb7645183"},"schema_version":"1.0"},"canonical_sha256":"427f20124ab0b2dfb3462b5115700764e1c7341a8959b2928c620f76a3a28b3b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:31:31.530910Z","signature_b64":"9q2PliK2nrpoQwjhyU61Olbb8n0kqdLPvA4uLZtz2PiPs9Scfn9v720EM1Va9Xkn6xJZfQ6VmQni0jA1m65vAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"427f20124ab0b2dfb3462b5115700764e1c7341a8959b2928c620f76a3a28b3b","last_reissued_at":"2026-05-18T04:31:31.530231Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:31:31.530231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-ex/0011016","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":"2026-05-18T04:31:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l/UNInvqXDmRKVgzRhVZi8cS2cHFlCCS4TzKYqjb8bei2e2kZHJyepm7KNIbhHFLWAfFoVoGO7HqAt1sceVMCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:36:35.901888Z"},"content_sha256":"997ca2b279f036a8ef80d82cd435e4c36dce9a10b3f684b9125bbb4cd6a1f245","schema_version":"1.0","event_id":"sha256:997ca2b279f036a8ef80d82cd435e4c36dce9a10b3f684b9125bbb4cd6a1f245"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:IJ7SAESKWCZN7M2GFNIRK4AHMT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Antimatter and Matter Production in Heavy Ion Collisions at CERN (The NEWMASS Experiment NA52)","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Bussiere, C. Baglin, F. Stoffel, G. Ambrosini, G. Lehmann, H.P. Beck, J.P. Guillaud, J. Schacher, J. Tuominiemi, K. Borer, K.D. Lohmann, K. Elsener, K. Pretzl, M. Weber, P. Hess, Ph. Gorodetzky, R. Arsenescu, R. Klingenberg, R. Mommsen, R. Spiwoks, S. Kabana, T. Linden, U. Moser","submitted_at":"2000-11-22T17:59:16Z","abstract_excerpt":"Besides the dedicated search for strangelets NA52 measures light (anti)particle and (anti)nuclei production over a wide range of rapidity. Compared to previous runs the statistics has been increased in the 1998 run by more than one order of magnitude for negatively charged objects at different spectrometer rigidities. Together with previous data taking at a rigidity of -20 GeV/c we obtained 10^6 antiprotons 10^3 antideuterons and two antihelium3 without centrality requirements. We measured nuclei and antinuclei (p,d,antiprotons, antideuterons) near midrapidity covering an impact parameter rang"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0011016","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":"2026-05-18T04:31:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xMUpm2j41s77hd9S5gQMyP1SKD/Y2DFRbZjHYQO49H0G62UVt4UDo38kN2muOzXnXK34lB12E+TTvhW/0SUDBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:36:35.902244Z"},"content_sha256":"98a58b3be1cf19eeb3e5d6b601817f5c84a3b4889b15d9d74aaa089c0ad02d50","schema_version":"1.0","event_id":"sha256:98a58b3be1cf19eeb3e5d6b601817f5c84a3b4889b15d9d74aaa089c0ad02d50"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IJ7SAESKWCZN7M2GFNIRK4AHMT/bundle.json","state_url":"https://pith.science/pith/IJ7SAESKWCZN7M2GFNIRK4AHMT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IJ7SAESKWCZN7M2GFNIRK4AHMT/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":"2026-05-30T01:36:35Z","links":{"resolver":"https://pith.science/pith/IJ7SAESKWCZN7M2GFNIRK4AHMT","bundle":"https://pith.science/pith/IJ7SAESKWCZN7M2GFNIRK4AHMT/bundle.json","state":"https://pith.science/pith/IJ7SAESKWCZN7M2GFNIRK4AHMT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IJ7SAESKWCZN7M2GFNIRK4AHMT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:IJ7SAESKWCZN7M2GFNIRK4AHMT","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":"e8ca8323d6544426f02b509b69d018a14395b959183ae3bbc582eb7bb7645183","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2000-11-22T17:59:16Z","title_canon_sha256":"9d7a162a8a6a2f0c36f057133793f8f67ccf801cc5a8c84db00da80a7ca666e3"},"schema_version":"1.0","source":{"id":"nucl-ex/0011016","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-ex/0011016","created_at":"2026-05-18T04:31:31Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-ex/0011016v1","created_at":"2026-05-18T04:31:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-ex/0011016","created_at":"2026-05-18T04:31:31Z"},{"alias_kind":"pith_short_12","alias_value":"IJ7SAESKWCZN","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"IJ7SAESKWCZN7M2G","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"IJ7SAESK","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:98a58b3be1cf19eeb3e5d6b601817f5c84a3b4889b15d9d74aaa089c0ad02d50","target":"graph","created_at":"2026-05-18T04:31:31Z","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":"Besides the dedicated search for strangelets NA52 measures light (anti)particle and (anti)nuclei production over a wide range of rapidity. Compared to previous runs the statistics has been increased in the 1998 run by more than one order of magnitude for negatively charged objects at different spectrometer rigidities. Together with previous data taking at a rigidity of -20 GeV/c we obtained 10^6 antiprotons 10^3 antideuterons and two antihelium3 without centrality requirements. We measured nuclei and antinuclei (p,d,antiprotons, antideuterons) near midrapidity covering an impact parameter rang","authors_text":"A. Bussiere, C. Baglin, F. Stoffel, G. Ambrosini, G. Lehmann, H.P. Beck, J.P. Guillaud, J. Schacher, J. Tuominiemi, K. Borer, K.D. Lohmann, K. Elsener, K. Pretzl, M. Weber, P. Hess, Ph. Gorodetzky, R. Arsenescu, R. Klingenberg, R. Mommsen, R. Spiwoks, S. Kabana, T. Linden, U. Moser","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-ex","submitted_at":"2000-11-22T17:59:16Z","title":"Antimatter and Matter Production in Heavy Ion Collisions at CERN (The NEWMASS Experiment NA52)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0011016","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":"sha256:997ca2b279f036a8ef80d82cd435e4c36dce9a10b3f684b9125bbb4cd6a1f245","target":"record","created_at":"2026-05-18T04:31:31Z","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":"e8ca8323d6544426f02b509b69d018a14395b959183ae3bbc582eb7bb7645183","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2000-11-22T17:59:16Z","title_canon_sha256":"9d7a162a8a6a2f0c36f057133793f8f67ccf801cc5a8c84db00da80a7ca666e3"},"schema_version":"1.0","source":{"id":"nucl-ex/0011016","kind":"arxiv","version":1}},"canonical_sha256":"427f20124ab0b2dfb3462b5115700764e1c7341a8959b2928c620f76a3a28b3b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"427f20124ab0b2dfb3462b5115700764e1c7341a8959b2928c620f76a3a28b3b","first_computed_at":"2026-05-18T04:31:31.530231Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:31:31.530231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9q2PliK2nrpoQwjhyU61Olbb8n0kqdLPvA4uLZtz2PiPs9Scfn9v720EM1Va9Xkn6xJZfQ6VmQni0jA1m65vAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:31:31.530910Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-ex/0011016","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:997ca2b279f036a8ef80d82cd435e4c36dce9a10b3f684b9125bbb4cd6a1f245","sha256:98a58b3be1cf19eeb3e5d6b601817f5c84a3b4889b15d9d74aaa089c0ad02d50"],"state_sha256":"f27e27ef12d05bbdee2aabf9d03c4ddae5a57fa4f3e343e7b69ec8104f602425"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5/jVD5/fWfe6xyvz+Qb93ojpj55SThlx2uuvxhZDNE6JOx4P/ttYcS3M6aJHbkeCgkSIL+TbeyiRukZ6RDEfBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T01:36:35.904436Z","bundle_sha256":"49d1d4288bbf069eb610b682c9aeb88f630255d48be3f25622f68150810d783f"}}