{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:ODCURUXVPTPJ6XVDLD7CZU7EDX","short_pith_number":"pith:ODCURUXV","schema_version":"1.0","canonical_sha256":"70c548d2f57cde9f5ea358fe2cd3e41de0c81239c4a339dcafcae6ba7802a7a8","source":{"kind":"arxiv","id":"2202.01371","version":3},"attestation_state":"computed","paper":{"title":"Observational constraints on varying fundamental constants in a minimal CPC model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"R. F. L. Holanda, R. R. Cuzinatto, S. H. Pereira","submitted_at":"2022-02-03T02:09:26Z","abstract_excerpt":"A minimal model based on the Co-varying Physical Couplings (CPC) framework for gravity is proposed. The CPC framework is based on the assumptions of a metric-compatible four-dimensional Riemannian manifold where a covariantly conserved stress-energy tensor acts as source of the field equations which are formally the same as Einstein field equations, but where the couplings $\\{ G, c,\\Lambda \\}$ are allowed to vary simultaneously. The minimal CPC model takes $\\Lambda$ as a genuine constant while $c$ and $G$ vary in an entangled way that is consistent with Bianchi identity and the aforementioned "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2202.01371","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-02-03T02:09:26Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"83c030c9f417e2185189aa4ee1abf6a207cb02808a19a3391333ae43d28f07e5","abstract_canon_sha256":"c8e272b1d76a9f5cfb770623a7c8b45dee6cd2ffa7f42425e728f33bf04516b3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:29:25.925967Z","signature_b64":"nIs4JfYnASzgGallY9mj1J9QWACUzELo0rSpSg0JD1FyPrKQFKmwouknuj85fvz5tBD+rq0PeJ6N+Qga0OVgDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"70c548d2f57cde9f5ea358fe2cd3e41de0c81239c4a339dcafcae6ba7802a7a8","last_reissued_at":"2026-07-05T05:29:25.925485Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:29:25.925485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observational constraints on varying fundamental constants in a minimal CPC model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"R. F. L. Holanda, R. R. Cuzinatto, S. H. Pereira","submitted_at":"2022-02-03T02:09:26Z","abstract_excerpt":"A minimal model based on the Co-varying Physical Couplings (CPC) framework for gravity is proposed. The CPC framework is based on the assumptions of a metric-compatible four-dimensional Riemannian manifold where a covariantly conserved stress-energy tensor acts as source of the field equations which are formally the same as Einstein field equations, but where the couplings $\\{ G, c,\\Lambda \\}$ are allowed to vary simultaneously. The minimal CPC model takes $\\Lambda$ as a genuine constant while $c$ and $G$ vary in an entangled way that is consistent with Bianchi identity and the aforementioned "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.01371","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2202.01371/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2202.01371","created_at":"2026-07-05T05:29:25.925544+00:00"},{"alias_kind":"arxiv_version","alias_value":"2202.01371v3","created_at":"2026-07-05T05:29:25.925544+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.01371","created_at":"2026-07-05T05:29:25.925544+00:00"},{"alias_kind":"pith_short_12","alias_value":"ODCURUXVPTPJ","created_at":"2026-07-05T05:29:25.925544+00:00"},{"alias_kind":"pith_short_16","alias_value":"ODCURUXVPTPJ6XVD","created_at":"2026-07-05T05:29:25.925544+00:00"},{"alias_kind":"pith_short_8","alias_value":"ODCURUXV","created_at":"2026-07-05T05:29:25.925544+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ODCURUXVPTPJ6XVDLD7CZU7EDX","json":"https://pith.science/pith/ODCURUXVPTPJ6XVDLD7CZU7EDX.json","graph_json":"https://pith.science/api/pith-number/ODCURUXVPTPJ6XVDLD7CZU7EDX/graph.json","events_json":"https://pith.science/api/pith-number/ODCURUXVPTPJ6XVDLD7CZU7EDX/events.json","paper":"https://pith.science/paper/ODCURUXV"},"agent_actions":{"view_html":"https://pith.science/pith/ODCURUXVPTPJ6XVDLD7CZU7EDX","download_json":"https://pith.science/pith/ODCURUXVPTPJ6XVDLD7CZU7EDX.json","view_paper":"https://pith.science/paper/ODCURUXV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2202.01371&json=true","fetch_graph":"https://pith.science/api/pith-number/ODCURUXVPTPJ6XVDLD7CZU7EDX/graph.json","fetch_events":"https://pith.science/api/pith-number/ODCURUXVPTPJ6XVDLD7CZU7EDX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ODCURUXVPTPJ6XVDLD7CZU7EDX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ODCURUXVPTPJ6XVDLD7CZU7EDX/action/storage_attestation","attest_author":"https://pith.science/pith/ODCURUXVPTPJ6XVDLD7CZU7EDX/action/author_attestation","sign_citation":"https://pith.science/pith/ODCURUXVPTPJ6XVDLD7CZU7EDX/action/citation_signature","submit_replication":"https://pith.science/pith/ODCURUXVPTPJ6XVDLD7CZU7EDX/action/replication_record"}},"created_at":"2026-07-05T05:29:25.925544+00:00","updated_at":"2026-07-05T05:29:25.925544+00:00"}