{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:3QYDGDEZZMPVXFPFSRVBMUUYYT","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":"6358094d3459d1e4aa2a51a184471eed85758d7c6bc1efbef6a02b9c245e0ed1","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2001-03-22T19:00:56Z","title_canon_sha256":"6e230026fab93ae22a26491bcd9acd181f56fb58183885c7931b8af34f421a0e"},"schema_version":"1.0","source":{"id":"gr-qc/0103083","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0103083","created_at":"2026-05-18T02:37:36Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0103083v1","created_at":"2026-05-18T02:37:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0103083","created_at":"2026-05-18T02:37:36Z"},{"alias_kind":"pith_short_12","alias_value":"3QYDGDEZZMPV","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"3QYDGDEZZMPVXFPF","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"3QYDGDEZ","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:22ac0df6b0dafe54e5f1cfb059f78aafe3faba57889e95441a5890f2b46e4fb8","target":"graph","created_at":"2026-05-18T02:37:36Z","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 fate of density perturbations in an Universe dominate by the Chaplygin gas, which exhibit negative pressure. We show that it is possible to obtain the value for the density contrast observed in large scale structure of the Universe by fixing a free parameter in the equation of state of this gas. The negative character of pressure must be significant only very recently.","authors_text":"Brazil), J.C. Fabris, P.E. de Souza (Universidade Federal do Espirito Santo, S.V.B. Goncalves","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2001-03-22T19:00:56Z","title":"Density perturbations in an Universe dominated by the Chaplygin gas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0103083","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:be126de4e06368d29f117fed19c093417fa64748f1dac3b1aff51836d44ee0ee","target":"record","created_at":"2026-05-18T02:37:36Z","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":"6358094d3459d1e4aa2a51a184471eed85758d7c6bc1efbef6a02b9c245e0ed1","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2001-03-22T19:00:56Z","title_canon_sha256":"6e230026fab93ae22a26491bcd9acd181f56fb58183885c7931b8af34f421a0e"},"schema_version":"1.0","source":{"id":"gr-qc/0103083","kind":"arxiv","version":1}},"canonical_sha256":"dc30330c99cb1f5b95e5946a165298c4c49fd03d2d491b8e4649c2bca46e4527","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc30330c99cb1f5b95e5946a165298c4c49fd03d2d491b8e4649c2bca46e4527","first_computed_at":"2026-05-18T02:37:36.174047Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:36.174047Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8vAXYzFly4TbWGQYoNM91t3RZ/u3kXGdlDfCW76OKnwaiqduHc3MoP9/o51FojJafxqUM2YRiNp6VlUkWq3FAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:36.174501Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0103083","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be126de4e06368d29f117fed19c093417fa64748f1dac3b1aff51836d44ee0ee","sha256:22ac0df6b0dafe54e5f1cfb059f78aafe3faba57889e95441a5890f2b46e4fb8"],"state_sha256":"e824f82c300545a307c0d2cd07de00c0648bcc5444cb9ce5c1375b956c76bf31"}