{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:M5YFUA5XFPM7ZV2P4W7ECCQSOE","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":"0160e04a360ecefc62c9b8bdd5ee122957e87ba729054bc051ac3ebe050a70ef","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2013-06-05T05:49:58Z","title_canon_sha256":"c41785879efaabe2d4c58099d23b2e0a64fdc86bc5813942c3b42b5e84f9812c"},"schema_version":"1.0","source":{"id":"1306.0991","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0991","created_at":"2026-05-18T03:13:33Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0991v2","created_at":"2026-05-18T03:13:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0991","created_at":"2026-05-18T03:13:33Z"},{"alias_kind":"pith_short_12","alias_value":"M5YFUA5XFPM7","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"M5YFUA5XFPM7ZV2P","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"M5YFUA5X","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:03cc548b2c35feb14832db875daa1b6aceba0d8317f9bc34df61221027436f2d","target":"graph","created_at":"2026-05-18T03:13:33Z","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":"In this paper, we consider a recently proposed model of Dark Energy (DE) which contains three terms (one proportional to the squared Hubble parameter, one to the first derivative with respect to the cosmic time of the Hubble parameter and one proportional to the second derivative with respect to the cosmic time of the Hubble parameter) in the light of the $f\\left(R,T \\right)$ model of modified gravity, considering the particular model $f\\left(R,T \\right) = \\mu R + \\nu T$, with $\\mu$ and $\\nu$ two free positive constant parameters. Here $R$ and $T$ are the curvature and torsion scalars, respect","authors_text":"Antonio Pasqua, Ratbay Myrzakulov, Surajit Chattopadhyay","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2013-06-05T05:49:58Z","title":"A dark energy with higher order derivatives of $H$ in the modified gravity $f(R,T)$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0991","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":"sha256:0f189c569f335f94a6b999b829471289361256d303e3018aa84c3b368cd9390e","target":"record","created_at":"2026-05-18T03:13:33Z","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":"0160e04a360ecefc62c9b8bdd5ee122957e87ba729054bc051ac3ebe050a70ef","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2013-06-05T05:49:58Z","title_canon_sha256":"c41785879efaabe2d4c58099d23b2e0a64fdc86bc5813942c3b42b5e84f9812c"},"schema_version":"1.0","source":{"id":"1306.0991","kind":"arxiv","version":2}},"canonical_sha256":"67705a03b72bd9fcd74fe5be410a12712491cac69968f82162d0accfe3a53601","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"67705a03b72bd9fcd74fe5be410a12712491cac69968f82162d0accfe3a53601","first_computed_at":"2026-05-18T03:13:33.582485Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:13:33.582485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K86tYGirRsHwzhRYS6MNwxW687Ymea61AowKIzUimKBA7bzxzQIwTsG5V0y1QDqR4v2CQQ8jKX05CMT2jl/mDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:13:33.583132Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.0991","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0f189c569f335f94a6b999b829471289361256d303e3018aa84c3b368cd9390e","sha256:03cc548b2c35feb14832db875daa1b6aceba0d8317f9bc34df61221027436f2d"],"state_sha256":"e42cfe0bd72069609d1e95f1a80fdcd49bfaefda464e54636d920c30bd7b59b1"}