{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:HS5YNEVG2AIJGSRDDHMSOICIOR","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":"70c6fe17dc1cceede6af655fe6facc2f8ad44a8506c444905ec08bd21f9ce14e","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2002-05-14T20:41:34Z","title_canon_sha256":"a32e692946ce56e9d03cee46dee6834386ec361ea2276da49d3c2cb7057cce63"},"schema_version":"1.0","source":{"id":"hep-th/0205140","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0205140","created_at":"2026-07-05T04:33:49Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0205140v1","created_at":"2026-07-05T04:33:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0205140","created_at":"2026-07-05T04:33:49Z"},{"alias_kind":"pith_short_12","alias_value":"HS5YNEVG2AIJ","created_at":"2026-07-05T04:33:49Z"},{"alias_kind":"pith_short_16","alias_value":"HS5YNEVG2AIJGSRD","created_at":"2026-07-05T04:33:49Z"},{"alias_kind":"pith_short_8","alias_value":"HS5YNEVG","created_at":"2026-07-05T04:33:49Z"}],"graph_snapshots":[{"event_id":"sha256:43ffeb2d1c92c2a693d1a843a5a77ab03cf59fe9c0565ecc42ca7099f19f98bf","target":"graph","created_at":"2026-07-05T04:33:49Z","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/hep-th/0205140/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A cosmological model with an exotic fluid is investigated. We show that the equation of state of this ``modified Chaplygin'' gas can describe the current accelerated expansion of the universe. We then reexpress it as FRW cosmological model containing a scalar field $\\phi$ and find its self--interacting potential. Moreover motivated by recent works of Sen [sen1, sen2] and Padmanbhan [pad] on tachyon field theory, a map for this exotic fluid as a normal scalar field $\\phi$ with Lagrangian ${\\cal L}_{\\phi} = \\frac{\\dot{\\phi}^2}{2} - U (\\phi)$ to the tachyonic field $T$ with Lagrangian ${\\cal L}_{","authors_text":"H.B. Benaoum","cross_cats":[],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"2002-05-14T20:41:34Z","title":"Accelerated Universe from Modified Chaplygin Gas and Tachyonic Fluid"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0205140","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":"sha256:92a693754a7f8e7c28e1fd4756ee5f96e5e9bbf5d1014f59b48037ff6d1c5f1b","target":"record","created_at":"2026-07-05T04:33:49Z","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":"70c6fe17dc1cceede6af655fe6facc2f8ad44a8506c444905ec08bd21f9ce14e","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2002-05-14T20:41:34Z","title_canon_sha256":"a32e692946ce56e9d03cee46dee6834386ec361ea2276da49d3c2cb7057cce63"},"schema_version":"1.0","source":{"id":"hep-th/0205140","kind":"arxiv","version":1}},"canonical_sha256":"3cbb8692a6d010934a2319d92720487453b45b0e5d8ae9d8db95931a354d2560","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3cbb8692a6d010934a2319d92720487453b45b0e5d8ae9d8db95931a354d2560","first_computed_at":"2026-07-05T04:33:49.184285Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:33:49.184285Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SNs7Hx5g6zA8zA0Xw3m/BOj/ucri2O0ylE2XfpL2tF3AGaGxT0eFXtlhqz71x9qQZuNQjBEPSq2AHcyMeZVRAg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:33:49.184736Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/0205140","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92a693754a7f8e7c28e1fd4756ee5f96e5e9bbf5d1014f59b48037ff6d1c5f1b","sha256:43ffeb2d1c92c2a693d1a843a5a77ab03cf59fe9c0565ecc42ca7099f19f98bf"],"state_sha256":"de4c8d4d9bae9b330a3a8dad2675771985c439fb918e74df1012bd68b4c51b9b"}