{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:XARWBUSMXWLWSETSLZ7NGBAEMP","short_pith_number":"pith:XARWBUSM","canonical_record":{"source":{"id":"hep-ph/9711513","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1997-11-28T15:38:41Z","cross_cats_sorted":[],"title_canon_sha256":"d2aeffbd938cb8664b816224975ee9e4c599802677fdfc41b9bb867af90e03d3","abstract_canon_sha256":"b01f8c3cd03498ac3fb49c72cad6fa33ee8e8bfad9e0f589dbe470322b0312d9"},"schema_version":"1.0"},"canonical_sha256":"b82360d24cbd976912725e7ed3040463ca8eacd5e062628ddb76c7c85e984141","source":{"kind":"arxiv","id":"hep-ph/9711513","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9711513","created_at":"2026-05-18T02:36:59Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9711513v1","created_at":"2026-05-18T02:36:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9711513","created_at":"2026-05-18T02:36:59Z"},{"alias_kind":"pith_short_12","alias_value":"XARWBUSMXWLW","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"XARWBUSMXWLWSETS","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"XARWBUSM","created_at":"2026-05-18T12:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:XARWBUSMXWLWSETSLZ7NGBAEMP","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9711513","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1997-11-28T15:38:41Z","cross_cats_sorted":[],"title_canon_sha256":"d2aeffbd938cb8664b816224975ee9e4c599802677fdfc41b9bb867af90e03d3","abstract_canon_sha256":"b01f8c3cd03498ac3fb49c72cad6fa33ee8e8bfad9e0f589dbe470322b0312d9"},"schema_version":"1.0"},"canonical_sha256":"b82360d24cbd976912725e7ed3040463ca8eacd5e062628ddb76c7c85e984141","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:36:59.542174Z","signature_b64":"rxtpkCuaY1gfz5CR7qOqQyOeNlI04RuoxOypsXXC+Q3cxsP/Cm1GLBJWRgK0bbk4FVfU+dhLsqEL3GhvMtR8Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b82360d24cbd976912725e7ed3040463ca8eacd5e062628ddb76c7c85e984141","last_reissued_at":"2026-05-18T02:36:59.541382Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:36:59.541382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9711513","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":"2026-05-18T02:36:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1wi/fqM77HdZIj6RImveRJXvGoziSjYUsz43EM6LDDO8Niw/KoqxySTafJzLOkMONxexBFVkRrWoUqJ0RIpbCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T12:35:15.685777Z"},"content_sha256":"9dc8b68b289f244c93a9701ffbbc6f0336c267747d13bbcf3886bd552c2fb956","schema_version":"1.0","event_id":"sha256:9dc8b68b289f244c93a9701ffbbc6f0336c267747d13bbcf3886bd552c2fb956"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:XARWBUSMXWLWSETSLZ7NGBAEMP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chiral-symmetry restoration in the linear sigma model at nonzero temperature and baryon density","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Croatia), Hrvoje Nikolic (Rudjer Boskovic Institute, Neven Bilic, Zagreb","submitted_at":"1997-11-28T15:38:41Z","abstract_excerpt":"We study the chiral phase transition in the linear sigma model with 2 quark flavors and $N_c$ colors. One-loop calculations predict a first-order phase transition at both $\\mu=0$ and $\\mu\\neq 0$. We also discuss the phase diagram and make a comparison with a thermal parametrization of existing heavy-ion experimental data."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9711513","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":"2026-05-18T02:36:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UHvwDgLcijl8whdJoEYEafdbkMCSCL/tEiXD9i+lzxNtqA/q7GDqynUKGU/LqW990YYeifGL7ko1xuqUK9exAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T12:35:15.686394Z"},"content_sha256":"cea183288adf460770c392d8275ec87ec30d912d1cb58acd5efc299d93263abf","schema_version":"1.0","event_id":"sha256:cea183288adf460770c392d8275ec87ec30d912d1cb58acd5efc299d93263abf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XARWBUSMXWLWSETSLZ7NGBAEMP/bundle.json","state_url":"https://pith.science/pith/XARWBUSMXWLWSETSLZ7NGBAEMP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XARWBUSMXWLWSETSLZ7NGBAEMP/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":"2026-06-06T12:35:15Z","links":{"resolver":"https://pith.science/pith/XARWBUSMXWLWSETSLZ7NGBAEMP","bundle":"https://pith.science/pith/XARWBUSMXWLWSETSLZ7NGBAEMP/bundle.json","state":"https://pith.science/pith/XARWBUSMXWLWSETSLZ7NGBAEMP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XARWBUSMXWLWSETSLZ7NGBAEMP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:XARWBUSMXWLWSETSLZ7NGBAEMP","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":"b01f8c3cd03498ac3fb49c72cad6fa33ee8e8bfad9e0f589dbe470322b0312d9","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1997-11-28T15:38:41Z","title_canon_sha256":"d2aeffbd938cb8664b816224975ee9e4c599802677fdfc41b9bb867af90e03d3"},"schema_version":"1.0","source":{"id":"hep-ph/9711513","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9711513","created_at":"2026-05-18T02:36:59Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9711513v1","created_at":"2026-05-18T02:36:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9711513","created_at":"2026-05-18T02:36:59Z"},{"alias_kind":"pith_short_12","alias_value":"XARWBUSMXWLW","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"XARWBUSMXWLWSETS","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"XARWBUSM","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:cea183288adf460770c392d8275ec87ec30d912d1cb58acd5efc299d93263abf","target":"graph","created_at":"2026-05-18T02:36:59Z","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 chiral phase transition in the linear sigma model with 2 quark flavors and $N_c$ colors. One-loop calculations predict a first-order phase transition at both $\\mu=0$ and $\\mu\\neq 0$. We also discuss the phase diagram and make a comparison with a thermal parametrization of existing heavy-ion experimental data.","authors_text":"Croatia), Hrvoje Nikolic (Rudjer Boskovic Institute, Neven Bilic, Zagreb","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1997-11-28T15:38:41Z","title":"Chiral-symmetry restoration in the linear sigma model at nonzero temperature and baryon density"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9711513","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":"sha256:9dc8b68b289f244c93a9701ffbbc6f0336c267747d13bbcf3886bd552c2fb956","target":"record","created_at":"2026-05-18T02:36:59Z","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":"b01f8c3cd03498ac3fb49c72cad6fa33ee8e8bfad9e0f589dbe470322b0312d9","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1997-11-28T15:38:41Z","title_canon_sha256":"d2aeffbd938cb8664b816224975ee9e4c599802677fdfc41b9bb867af90e03d3"},"schema_version":"1.0","source":{"id":"hep-ph/9711513","kind":"arxiv","version":1}},"canonical_sha256":"b82360d24cbd976912725e7ed3040463ca8eacd5e062628ddb76c7c85e984141","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b82360d24cbd976912725e7ed3040463ca8eacd5e062628ddb76c7c85e984141","first_computed_at":"2026-05-18T02:36:59.541382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:36:59.541382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rxtpkCuaY1gfz5CR7qOqQyOeNlI04RuoxOypsXXC+Q3cxsP/Cm1GLBJWRgK0bbk4FVfU+dhLsqEL3GhvMtR8Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:36:59.542174Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9711513","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9dc8b68b289f244c93a9701ffbbc6f0336c267747d13bbcf3886bd552c2fb956","sha256:cea183288adf460770c392d8275ec87ec30d912d1cb58acd5efc299d93263abf"],"state_sha256":"fad3a4b2d4e0aaa9847587de4a25da97ab036a6eb5a05d34a0e8c4003a1450fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WD+ZOzK8vBdJbUboaWUAIRCxDlXBPZIQEOvwdDGrS9mO1FDX2RJ3d8aUzp7emN3RjQCxvmNqZ76Fr8yxCoG4CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T12:35:15.690359Z","bundle_sha256":"101ba0b90fbe516d459795c8f33f64ade94b044a3b5e9aac6931467ce888c8a8"}}