{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:LSPOKB5HX4HLRM3UAH63SWNF23","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":"a76d5d224a65d430d26d904a975847278209e31ff6a9d8aa21756bdabad03346","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-11-27T11:37:27Z","title_canon_sha256":"045fb8f1221b83f4efaa57030acdb3e11accbb8d050180b55a673a201985a04d"},"schema_version":"1.0","source":{"id":"1311.6939","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.6939","created_at":"2026-05-18T01:32:43Z"},{"alias_kind":"arxiv_version","alias_value":"1311.6939v2","created_at":"2026-05-18T01:32:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.6939","created_at":"2026-05-18T01:32:43Z"},{"alias_kind":"pith_short_12","alias_value":"LSPOKB5HX4HL","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"LSPOKB5HX4HLRM3U","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"LSPOKB5H","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:6463fd23e2dd74f6b148599f8b57b654ff6212226d953dd865b0cef4f71b91b2","target":"graph","created_at":"2026-05-18T01:32:43Z","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 consider inhomogeneous viscous fluids in flat Friedmann-Robertson-Walker universe. We analyze different kinds of such fluids and investigate the possibility to reproduce the current cosmic acceleration providing a different future evolution with respect to the Cosmological Constant case. In particular, we study the presence of finite-future time singularities. We also discuss a general class of \"integrable\" viscous fluid models whose bulk viscosities obey to a common differential equation.","authors_text":"Lorenzo Sebastiani, Ratbay Myrzakulov, Shynaray Myrzakul","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-11-27T11:37:27Z","title":"Inhomogeneous viscous fluids in FRW universe and finite-future time singularities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.6939","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:d06037f3fcc5c83efc941a822ea19f05c8cc159f3409c3ae3606ba4b759698d1","target":"record","created_at":"2026-05-18T01:32:43Z","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":"a76d5d224a65d430d26d904a975847278209e31ff6a9d8aa21756bdabad03346","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-11-27T11:37:27Z","title_canon_sha256":"045fb8f1221b83f4efaa57030acdb3e11accbb8d050180b55a673a201985a04d"},"schema_version":"1.0","source":{"id":"1311.6939","kind":"arxiv","version":2}},"canonical_sha256":"5c9ee507a7bf0eb8b37401fdb959a5d6fe2895e0f5b26791609edf884e00666e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5c9ee507a7bf0eb8b37401fdb959a5d6fe2895e0f5b26791609edf884e00666e","first_computed_at":"2026-05-18T01:32:43.906307Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:32:43.906307Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ufNIIm+nx0159AFDHvWK/EQZeqnebVj2mmb7skd2FhGlkpwmSDQ/C+RUyaeAnIdP5RiKJWj+dEPtBEEhclTDAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:32:43.906680Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.6939","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d06037f3fcc5c83efc941a822ea19f05c8cc159f3409c3ae3606ba4b759698d1","sha256:6463fd23e2dd74f6b148599f8b57b654ff6212226d953dd865b0cef4f71b91b2"],"state_sha256":"fe8241613724c4d9aec7223cab90da7d9b8dc47d42f56a0d71c847010fd855e1"}