{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:BLDVRMMEYCRZ73INR37FDPLUWF","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":"f5fed2dcb687cd59090ea766a5ac900179bc7dd6872bce35d4a565aed7bfa764","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-04-03T13:17:48Z","title_canon_sha256":"4015cc4392ec761a5a336beec16793f0797ecf0484f6adf807704610e3830ab3"},"schema_version":"1.0","source":{"id":"astro-ph/0604026","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0604026","created_at":"2026-05-18T03:51:14Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0604026v1","created_at":"2026-05-18T03:51:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0604026","created_at":"2026-05-18T03:51:14Z"},{"alias_kind":"pith_short_12","alias_value":"BLDVRMMEYCRZ","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"BLDVRMMEYCRZ73IN","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"BLDVRMME","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:bb2204769ac6a34462e6613c151e482d2f9f0dbccc956213a8b2b1054c71d826","target":"graph","created_at":"2026-05-18T03:51:14Z","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 consider scalar tensor theories of gravity assuming that the scalar field is non minimally coupled with gravity. We use this theory to study evolution of a flat homogeneous and isotropic universe. In this case the dynamical equations can be derived form a point like Lagrangian. We study the general properties of dynamics of this system and show that for a wide range of initial conditions such models lead in a natural way to an accelerated phase of expansion of the universe. Assuming that the point like Lagrangian admits a Noether symmetry we are able to explicitly solve the dynamical equati","authors_text":"C. Rubano, C. Tortora, E. Piedipalumbo, M. Demianski","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-04-03T13:17:48Z","title":"Accelerating universe in scalar tensor models - confrontation of theoretical predictions with observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0604026","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":"sha256:1dd9fc5d2b4b3035684f949a9dfd5d89b43b5d10d0331df519a02dd4ada9ce05","target":"record","created_at":"2026-05-18T03:51:14Z","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":"f5fed2dcb687cd59090ea766a5ac900179bc7dd6872bce35d4a565aed7bfa764","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-04-03T13:17:48Z","title_canon_sha256":"4015cc4392ec761a5a336beec16793f0797ecf0484f6adf807704610e3830ab3"},"schema_version":"1.0","source":{"id":"astro-ph/0604026","kind":"arxiv","version":1}},"canonical_sha256":"0ac758b184c0a39fed0d8efe51bd74b174a177f2c17e19351dd936f2c979d091","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ac758b184c0a39fed0d8efe51bd74b174a177f2c17e19351dd936f2c979d091","first_computed_at":"2026-05-18T03:51:14.594047Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:51:14.594047Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nzi3EMaz1Hn51c8RoKAGAW03yl1co/7sbEhATgIcYyddbMWU6q2M/FHnxEzHHfVPrec1ymrLM0ZAmG6SezKpBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:51:14.594724Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0604026","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1dd9fc5d2b4b3035684f949a9dfd5d89b43b5d10d0331df519a02dd4ada9ce05","sha256:bb2204769ac6a34462e6613c151e482d2f9f0dbccc956213a8b2b1054c71d826"],"state_sha256":"65755664a18fb1464eb57c0731275afa5e1a942e5379fa7f1e9a033cedefd980"}