{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:Y7UVALTB4P37EXTYU2RV6QJIIF","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":"653425b35d8bb5eaf335dda6904763bd34a5ca5484e84225d4258f935d70f5d2","cross_cats_sorted":["gr-qc","hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-07-18T02:04:57Z","title_canon_sha256":"58361825364a126fcff4013f23eb1f7cf117e3618d1f33dc8701c70e56812af7"},"schema_version":"1.0","source":{"id":"astro-ph/0307338","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0307338","created_at":"2026-07-04T15:45:42Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0307338v3","created_at":"2026-07-04T15:45:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0307338","created_at":"2026-07-04T15:45:42Z"},{"alias_kind":"pith_short_12","alias_value":"Y7UVALTB4P37","created_at":"2026-07-04T15:45:42Z"},{"alias_kind":"pith_short_16","alias_value":"Y7UVALTB4P37EXTY","created_at":"2026-07-04T15:45:42Z"},{"alias_kind":"pith_short_8","alias_value":"Y7UVALTB","created_at":"2026-07-04T15:45:42Z"}],"graph_snapshots":[{"event_id":"sha256:e5d376a41a5bf09360821ae6be2a5395c8f3053c804170e8710d9e4334a25ff6","target":"graph","created_at":"2026-07-04T15:45:42Z","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/0307338/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We point out that extended gravity theories, the Lagrangian of which is an arbitrary function of scalar curvature $R$, are equivalent to a class of the scalar tensor theories of gravity. The corresponding gravity theory is $\\omega=0$ Brans-Dicke gravity with a potential for the Brans-Dicke scalar field, which is not compatible with solar system experiments if the field is very light: the case when such modifications are important recently.","authors_text":"Takeshi Chiba","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-07-18T02:04:57Z","title":"1/R gravity and Scalar-Tensor Gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0307338","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:c98e9113ea4faa7a7e62c77704b8b9bdea33aa544a24ef09aa8a8b5165eb8d00","target":"record","created_at":"2026-07-04T15:45:42Z","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":"653425b35d8bb5eaf335dda6904763bd34a5ca5484e84225d4258f935d70f5d2","cross_cats_sorted":["gr-qc","hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-07-18T02:04:57Z","title_canon_sha256":"58361825364a126fcff4013f23eb1f7cf117e3618d1f33dc8701c70e56812af7"},"schema_version":"1.0","source":{"id":"astro-ph/0307338","kind":"arxiv","version":3}},"canonical_sha256":"c7e9502e61e3f7f25e78a6a35f412841688cc0c09f72496451a067b079c9e193","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7e9502e61e3f7f25e78a6a35f412841688cc0c09f72496451a067b079c9e193","first_computed_at":"2026-07-04T15:45:42.337920Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:45:42.337920Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i5cWLnVYdwBrS8j5fXpY0TgFDNtbhbNUG/iPf2vPdnf9WkpkoQOq3HTmEHrwLHFp73vZozTSYJQc51DOdvX5CA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:45:42.338397Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0307338","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c98e9113ea4faa7a7e62c77704b8b9bdea33aa544a24ef09aa8a8b5165eb8d00","sha256:e5d376a41a5bf09360821ae6be2a5395c8f3053c804170e8710d9e4334a25ff6"],"state_sha256":"5ea3058a36da3804311255f8d07274b0e2be214fbc6abd5e098797aa96b5e11b"}