{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:OOG7Y2QZNRAXRD6GGEWVIWIK5U","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":"51708edb2f17cde726c5362762e22169aca1c6b01260e30d7dae94d1661e198f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-01-12T15:33:50Z","title_canon_sha256":"1948efe3f6174b2b1b51b6c9d8c3d15ecfbe89036a1a7826145747a930810d38"},"schema_version":"1.0","source":{"id":"astro-ph/0601266","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0601266","created_at":"2026-07-04T16:57:47Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0601266v1","created_at":"2026-07-04T16:57:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0601266","created_at":"2026-07-04T16:57:47Z"},{"alias_kind":"pith_short_12","alias_value":"OOG7Y2QZNRAX","created_at":"2026-07-04T16:57:47Z"},{"alias_kind":"pith_short_16","alias_value":"OOG7Y2QZNRAXRD6G","created_at":"2026-07-04T16:57:47Z"},{"alias_kind":"pith_short_8","alias_value":"OOG7Y2QZ","created_at":"2026-07-04T16:57:47Z"}],"graph_snapshots":[{"event_id":"sha256:f6be7b8cc46d93d297a3bc6f36bcf28f45c72f91b17b57df2b3a6bca941cc578","target":"graph","created_at":"2026-07-04T16:57:47Z","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/astro-ph/0601266/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the possibility that part of the dark matter is not made out of the usual cold dark matter (CDM) dustlike particles, but is under the form of a fluid of strings with barotropic factor $w_s = -1/3$ of cosmic origin. To this aim, we split the dark matter density parameter in two terms and investigate the dynamics of a spatially flat universe filled with baryons, CDM, fluid of strings and dark energy, modeling this latter as a cosmological constant or a negative pressure fluid with a constant equation of state $w < 0$. To test the viability of the models and to constrain their para","authors_text":"A. Troisi, G. Lambiase, S. Capozziello, V.F. Cardone","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-01-12T15:33:50Z","title":"A fluid os strings as a viable candidate to the dark side of the universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0601266","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:f8f4d44cc10e487259ab0e6df92af5fac6ceb97642fc3e0482c3b7a77b0538bb","target":"record","created_at":"2026-07-04T16:57:47Z","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":"51708edb2f17cde726c5362762e22169aca1c6b01260e30d7dae94d1661e198f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-01-12T15:33:50Z","title_canon_sha256":"1948efe3f6174b2b1b51b6c9d8c3d15ecfbe89036a1a7826145747a930810d38"},"schema_version":"1.0","source":{"id":"astro-ph/0601266","kind":"arxiv","version":1}},"canonical_sha256":"738dfc6a196c41788fc6312d54590aed1b1d638d09cf5302ab8daca86f339e69","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"738dfc6a196c41788fc6312d54590aed1b1d638d09cf5302ab8daca86f339e69","first_computed_at":"2026-07-04T16:57:47.054322Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:57:47.054322Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZhZ85SwDH0a4UXuzK4d/19XiqEyJDQjBbR0OFONydfCeRCbnoDvOAy+hIn50UqOeoBWMS59nE+K69m2DqVG5AA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:57:47.054718Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0601266","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f8f4d44cc10e487259ab0e6df92af5fac6ceb97642fc3e0482c3b7a77b0538bb","sha256:f6be7b8cc46d93d297a3bc6f36bcf28f45c72f91b17b57df2b3a6bca941cc578"],"state_sha256":"e66438d2a35ae7a8b618e280584ac5c2a549490bc7259724c1eca04855740ccd"}