{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:EMF56OFGIZEWRGVH3RCYVCAKEL","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":"3685d8c9b20a9e93e86cb3434c767a7b0c4882a057137c814a43b066e5c22585","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-23T14:07:11Z","title_canon_sha256":"a861fe32ee48cd5f3d39b1b128fd9eb15ecd69ba2f8f2c341b6cabdd67ab9a0e"},"schema_version":"1.0","source":{"id":"2009.11156","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.11156","created_at":"2026-07-05T05:05:42Z"},{"alias_kind":"arxiv_version","alias_value":"2009.11156v1","created_at":"2026-07-05T05:05:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.11156","created_at":"2026-07-05T05:05:42Z"},{"alias_kind":"pith_short_12","alias_value":"EMF56OFGIZEW","created_at":"2026-07-05T05:05:42Z"},{"alias_kind":"pith_short_16","alias_value":"EMF56OFGIZEWRGVH","created_at":"2026-07-05T05:05:42Z"},{"alias_kind":"pith_short_8","alias_value":"EMF56OFG","created_at":"2026-07-05T05:05:42Z"}],"graph_snapshots":[{"event_id":"sha256:ac4dd2a43404ced75d87bb4d1b3c407e4eb9fac0e301512a5c35a2504cd5ffcd","target":"graph","created_at":"2026-07-05T05:05:42Z","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/2009.11156/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We developed the parameterized post-Keplerian formalism for hybrid metric-Palatini $f(R)$-gravity. We obtained analytical expressions in the generel eccentric case for four PPK parameters: $\\dot\\omega$, $\\dot P_{\\rm b}$, $r$ and $s$. Using observational data of PSR J0737-3039 and PSR J1903+0327 we imposed restrictions on the parameters of hybrid f(R)-gravity and showed that this theory is not ruled out by the observations in strong field regime. In addition we obtained predictions for masses of systems components and found that considered astrophysical objects will be heavier than in GR.","authors_text":"N. Avdeev, P. Dyadina, S. Labazova","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-23T14:07:11Z","title":"Test of hybrid metric-Palatini f(R)-gravity in binary pulsars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.11156","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:e03132ffda9724b261513952436a2c99d8e19e2cfb4e39a5f98887f1b11d5980","target":"record","created_at":"2026-07-05T05:05:42Z","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":"3685d8c9b20a9e93e86cb3434c767a7b0c4882a057137c814a43b066e5c22585","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-23T14:07:11Z","title_canon_sha256":"a861fe32ee48cd5f3d39b1b128fd9eb15ecd69ba2f8f2c341b6cabdd67ab9a0e"},"schema_version":"1.0","source":{"id":"2009.11156","kind":"arxiv","version":1}},"canonical_sha256":"230bdf38a64649689aa7dc458a880a22d658b69657b7233b997e017d3b488737","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"230bdf38a64649689aa7dc458a880a22d658b69657b7233b997e017d3b488737","first_computed_at":"2026-07-05T05:05:42.926554Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:05:42.926554Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WXLt+qm1+ytGVwPXfnSluVIAIkbp56HRf/Jiretv7xfxah4dvUMhvaUjLOKPvCXk2ElDgPcBi08XEYBesPeiAg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:05:42.927112Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.11156","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e03132ffda9724b261513952436a2c99d8e19e2cfb4e39a5f98887f1b11d5980","sha256:ac4dd2a43404ced75d87bb4d1b3c407e4eb9fac0e301512a5c35a2504cd5ffcd"],"state_sha256":"22dd48b176ab3c92b27c6eda97b58bbb65b7e40bb40fe1883f183b2119b7f8c4"}