{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:5PXANFDXUEDL6MMBY7SYXKMEXC","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":"9ce4724341ff3c59ffce6f2af775ef44d146367035a09f1c5907e866103acba0","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-30T10:45:03Z","title_canon_sha256":"8de4477227be7412006928e3bc7e0fdf3e6c974a76dabececf025c51b4edf16c"},"schema_version":"1.0","source":{"id":"2303.17283","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.17283","created_at":"2026-07-05T07:18:25Z"},{"alias_kind":"arxiv_version","alias_value":"2303.17283v3","created_at":"2026-07-05T07:18:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.17283","created_at":"2026-07-05T07:18:25Z"},{"alias_kind":"pith_short_12","alias_value":"5PXANFDXUEDL","created_at":"2026-07-05T07:18:25Z"},{"alias_kind":"pith_short_16","alias_value":"5PXANFDXUEDL6MMB","created_at":"2026-07-05T07:18:25Z"},{"alias_kind":"pith_short_8","alias_value":"5PXANFDX","created_at":"2026-07-05T07:18:25Z"}],"graph_snapshots":[{"event_id":"sha256:127f7b3d5e31252f837b41ca8765f4ee7e952974f93e54fea343af0c24c6e0ce","target":"graph","created_at":"2026-07-05T07:18:25Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2303.17283/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we would like to examine whether a novel Starobinsky-Bel-Robinson gravity model admits stable exponential inflationary solutions with or without spatial anisotropies. As a result, we are able to derive an exact de Sitter inflationary to this Starobinsky-Bel-Robinson model. Furthermore, we observe that an exact Bianchi type I inflationary solution does not exist in the Starobinsky-Bel-Robinson model. However, we find that a modified Starobinsky-Bel-Robinson model, in which the sign of coefficient of $R^2$ term is flipped from positive to negative, can admit the corresponding Bian","authors_text":"Duy H. Nguyen, Tuan Q. Do, Tuyen M. Pham","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-30T10:45:03Z","title":"Stability investigations of isotropic and anisotropic exponential inflation in the Starobinsky-Bel-Robinson gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.17283","kind":"arxiv","version":3},"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":"sha256:7056c4b45381497239806861b2bdd3c0dd0dce2d9a220e395252d0d35537c268","target":"record","created_at":"2026-07-05T07:18:25Z","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":"9ce4724341ff3c59ffce6f2af775ef44d146367035a09f1c5907e866103acba0","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-30T10:45:03Z","title_canon_sha256":"8de4477227be7412006928e3bc7e0fdf3e6c974a76dabececf025c51b4edf16c"},"schema_version":"1.0","source":{"id":"2303.17283","kind":"arxiv","version":3}},"canonical_sha256":"ebee069477a106bf3181c7e58ba984b89611bb65ab257188da3ae6270cd94a15","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ebee069477a106bf3181c7e58ba984b89611bb65ab257188da3ae6270cd94a15","first_computed_at":"2026-07-05T07:18:25.401354Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:18:25.401354Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U3eMz3mrD2oVkJIa791SA0BQMYMpe77a+RM2ds8gPj20bvIlN+CVyb34jLlTNfyzR2nktIO5oytao77Oka7nAA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:18:25.401881Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.17283","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7056c4b45381497239806861b2bdd3c0dd0dce2d9a220e395252d0d35537c268","sha256:127f7b3d5e31252f837b41ca8765f4ee7e952974f93e54fea343af0c24c6e0ce"],"state_sha256":"7c77b2a2985be578ec31ffb73b94333c9c6fed8f65e874ebcebe91a918b71aba"}