{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:KZWEBXLLIV6PWSERQTP4643NI3","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":"c34f0256326d7e70a7216a59f54bce4d0d64acd5ab6e54d6aedb9573212e00bf","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-16T20:56:55Z","title_canon_sha256":"32a78a86b597f93b991582b9522daff40dcacad9db8dc078bc6c818a9de028dd"},"schema_version":"1.0","source":{"id":"1502.04693","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.04693","created_at":"2026-05-18T01:36:25Z"},{"alias_kind":"arxiv_version","alias_value":"1502.04693v2","created_at":"2026-05-18T01:36:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.04693","created_at":"2026-05-18T01:36:25Z"},{"alias_kind":"pith_short_12","alias_value":"KZWEBXLLIV6P","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"KZWEBXLLIV6PWSER","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"KZWEBXLL","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:9d2bf221bb285aacd005a1b2ecbba557fff9bf09745102e0c79286d789db049b","target":"graph","created_at":"2026-05-18T01:36:25Z","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 late-time evolution of the Universe where dark energy (DE) is presented by a barotropic fluid on top of cold dark matter (CDM). We also take into account the radiation content of the Universe. Here by the late stage of the evolution we refer to the epoch where CDM is already clustered into inhomogeneously distributed discrete structures (galaxies, groups and clusters of galaxies). Under this condition the mechanical approach is an adequate tool to study the Universe deep inside the cell of uniformity. More precisely, we study scalar perturbations of the FLRW metric due to inhomoge","authors_text":"Alexander Zhuk, Mariam Bouhmadi-L\\'opez, Maxim Brilenkov, Maxim Eingorn, Ozgur Akarsu, Ruslan Brilenkov","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-16T20:56:55Z","title":"Are dark energy models with variable EoS parameter $w$ compatible with the late inhomogeneous Universe?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.04693","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":"sha256:871c9a5ed9fcf1893191a7b7c3b79b5f94992de67965baa17bb3dd1369a3ea66","target":"record","created_at":"2026-05-18T01:36:25Z","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":"c34f0256326d7e70a7216a59f54bce4d0d64acd5ab6e54d6aedb9573212e00bf","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-16T20:56:55Z","title_canon_sha256":"32a78a86b597f93b991582b9522daff40dcacad9db8dc078bc6c818a9de028dd"},"schema_version":"1.0","source":{"id":"1502.04693","kind":"arxiv","version":2}},"canonical_sha256":"566c40dd6b457cfb489184dfcf736d46f1c0c239465076ef1dfd19e5a097c300","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"566c40dd6b457cfb489184dfcf736d46f1c0c239465076ef1dfd19e5a097c300","first_computed_at":"2026-05-18T01:36:25.706991Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:25.706991Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Rn6o+pDGW7Kq8/QlwzjYOb0zkVwIjimKvH8ZOyJRBG2YhFADuuswlbD6d6WTVm75wxE6nxr46OBP34GRlZYAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:25.707405Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.04693","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:871c9a5ed9fcf1893191a7b7c3b79b5f94992de67965baa17bb3dd1369a3ea66","sha256:9d2bf221bb285aacd005a1b2ecbba557fff9bf09745102e0c79286d789db049b"],"state_sha256":"4043d8c3f6e51d01138069a8d2e79d690e54d80f54db8976c2a0969648457942"}