{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:NHVJN2LMNRY534FAE5OCQ7TNAK","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":"a54a8d5599f033cf3e2d635a690afed481c8b05e43f0cd7639206ebbf5f5d2f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-01T00:41:17Z","title_canon_sha256":"b0dca5dd90aafccf67b93f19628a9d2c1eba2dcd55447fe360f19d43848ef447"},"schema_version":"1.0","source":{"id":"1304.2292","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.2292","created_at":"2026-05-18T03:28:43Z"},{"alias_kind":"arxiv_version","alias_value":"1304.2292v1","created_at":"2026-05-18T03:28:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.2292","created_at":"2026-05-18T03:28:43Z"},{"alias_kind":"pith_short_12","alias_value":"NHVJN2LMNRY5","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NHVJN2LMNRY534FA","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NHVJN2LM","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:23fa1cb7dddc5368128187cad0f9794f8a73f42f6fd70235fd8224451500b613","target":"graph","created_at":"2026-05-18T03:28:43Z","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":"Phantom dark energy is a proposal that explains the current observations that mildly favor the equation of state of dark energy $\\omega^{de}$ crossing -1 at 68% confidence level. However, phantom fields are generally ruled out by ultraviolet quantum instabilities. To overcome this discrepancy, in this paper we propose a mechanism to show that how the presence of bulk viscosity in the cosmic fluid can temporarily drive the fluid into the phantom region ($\\omega<-1$). As time is going on, phantom decays and ultimately $\\omega^{de}$ approaches to -1. Then we show these quintessence and phantom de","authors_text":"Hassan Amirhashchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-01T00:41:17Z","title":"Phantom Instability of Viscous Dark Energy in Anisotropic Space-Time"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.2292","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":"sha256:65be0495353fcda99f116c906a8c3b577527a97d1d339854e7907a01fdc88eae","target":"record","created_at":"2026-05-18T03:28:43Z","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":"a54a8d5599f033cf3e2d635a690afed481c8b05e43f0cd7639206ebbf5f5d2f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-01T00:41:17Z","title_canon_sha256":"b0dca5dd90aafccf67b93f19628a9d2c1eba2dcd55447fe360f19d43848ef447"},"schema_version":"1.0","source":{"id":"1304.2292","kind":"arxiv","version":1}},"canonical_sha256":"69ea96e96c6c71ddf0a0275c287e6d02be0d0854b84413fb81d17be725dbdadd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"69ea96e96c6c71ddf0a0275c287e6d02be0d0854b84413fb81d17be725dbdadd","first_computed_at":"2026-05-18T03:28:43.510129Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:28:43.510129Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4lLv7rljarX2XVMb9FGg4lLI86nF5kYKEtXi8zsUk7XyZtXGaMyJhOnVZ033sTd3ZhIs2iTNZVEietJUiSILAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:28:43.510800Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.2292","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:65be0495353fcda99f116c906a8c3b577527a97d1d339854e7907a01fdc88eae","sha256:23fa1cb7dddc5368128187cad0f9794f8a73f42f6fd70235fd8224451500b613"],"state_sha256":"684d0c8bef738004fcbb13242a4079c88d1da199fe2e831e965c784e292de34c"}