{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MZWYCYGX2L7QENGYUBYOI6Z5QH","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":"58642c94989c221971f43cf641e77599d35d52006886448ff4c98e5aab1be604","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-25T08:01:21Z","title_canon_sha256":"4161f074f36da0ee6da6b8394c141842e1f91374699587b0fa93d93aa5bbb075"},"schema_version":"1.0","source":{"id":"1810.10754","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.10754","created_at":"2026-05-17T23:56:52Z"},{"alias_kind":"arxiv_version","alias_value":"1810.10754v2","created_at":"2026-05-17T23:56:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.10754","created_at":"2026-05-17T23:56:52Z"},{"alias_kind":"pith_short_12","alias_value":"MZWYCYGX2L7Q","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MZWYCYGX2L7QENGY","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MZWYCYGX","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:df223a89bcc6382aa5cce06218582d3cfdcd98c51dc7cb63892897a6ada4cc86","target":"graph","created_at":"2026-05-17T23:56:52Z","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 a Palatini $f(\\mathcal{R})$-model, we define chonodynamical effects due to the choice of atomic clocks as standard reference clocks and we develop a formalism able to quantitatively separate them from the usual effective dark sources one has in extended theories. We apply the formalism to Hubble drift and briefly discuss the issue about the physical frame. In particular, we argue that there is no physical frame in the sense one does different things in different frames and that, in a sense, is the physical characteristic of extended gravity. As an example, we discuss how Jordan frame may be","authors_text":"L.Del Vecchio, L.Fatibene, M.Ferraris, P.Pinto, S.Camera, S.Capozziello","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-25T08:01:21Z","title":"Hubble drift in Palatini $f(\\mathcal{R})$-theories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.10754","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":"sha256:1099ef5ed8b2d509f3a656b2703ae3f7b7c2527f67145694992a2002f541c4d3","target":"record","created_at":"2026-05-17T23:56:52Z","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":"58642c94989c221971f43cf641e77599d35d52006886448ff4c98e5aab1be604","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-25T08:01:21Z","title_canon_sha256":"4161f074f36da0ee6da6b8394c141842e1f91374699587b0fa93d93aa5bbb075"},"schema_version":"1.0","source":{"id":"1810.10754","kind":"arxiv","version":2}},"canonical_sha256":"666d8160d7d2ff0234d8a070e47b3d81e2d2c72bde7246c1f23591077f1a611b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"666d8160d7d2ff0234d8a070e47b3d81e2d2c72bde7246c1f23591077f1a611b","first_computed_at":"2026-05-17T23:56:52.721653Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:52.721653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7YRnuKsVE8csq0eUBlnHpy4jDu8LIV60rqqc9lhzf8CPW++ee7UQb4rMadoDqT0a++3bdHmQUQdiZNMk1zPEDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:52.722174Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.10754","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1099ef5ed8b2d509f3a656b2703ae3f7b7c2527f67145694992a2002f541c4d3","sha256:df223a89bcc6382aa5cce06218582d3cfdcd98c51dc7cb63892897a6ada4cc86"],"state_sha256":"55f13dbb94bad8621e1cadc942019bd3f0a72356b66b0ed4a5be3961bb1c77ff"}