{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:RD7JV5I5YB4TXFZ4DX3BQ3PHBD","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":"91bf124e000c8e9cd2f8b0f58ac10ca49024ecfde1ff5f10b4847a37b7dee1e7","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-06-30T15:58:54Z","title_canon_sha256":"e58b4608bc03a6a6b270d491e81c4e2db0e39ad8868b1bc5cef3dbf03224387e"},"schema_version":"1.0","source":{"id":"1907.00403","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.00403","created_at":"2026-07-05T05:05:24Z"},{"alias_kind":"arxiv_version","alias_value":"1907.00403v1","created_at":"2026-07-05T05:05:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.00403","created_at":"2026-07-05T05:05:24Z"},{"alias_kind":"pith_short_12","alias_value":"RD7JV5I5YB4T","created_at":"2026-07-05T05:05:24Z"},{"alias_kind":"pith_short_16","alias_value":"RD7JV5I5YB4TXFZ4","created_at":"2026-07-05T05:05:24Z"},{"alias_kind":"pith_short_8","alias_value":"RD7JV5I5","created_at":"2026-07-05T05:05:24Z"}],"graph_snapshots":[{"event_id":"sha256:0226a555bc2afddee17ef975d04c76c6ecf2fc8ffe7d6ed66c43f7b45c4e1d91","target":"graph","created_at":"2026-07-05T05:05:24Z","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/1907.00403/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work we investigate the inflationary phenomenological implications of a recently developed ghost-free Gauss-Bonnet theory of gravity. The resulting theory can be viewed as a scalar Einstein-Gauss-Bonnet theory of gravity, so by employing the formalism for cosmological perturbations for the latter theory, we calculate the slow-roll indices and the observational indices, and we compare these with the latest observational data. Due to the presence of a freely chosen function in the model, in principle any cosmological evolution can be realized, so we specify the Hubble rate and the freely","authors_text":"N. Chatzarakis, S.D. Odintsov, Shin'ichi Nojiri, Tanmoy Paul, V.K. Oikonomou","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-06-30T15:58:54Z","title":"Viable Inflationary Models in a Ghost-free Gauss-Bonnet Theory of Gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.00403","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":"sha256:16eec31ca4cb89d007e870b59ff5392c2bfc8e369b20188b06e937d4d0deb172","target":"record","created_at":"2026-07-05T05:05:24Z","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":"91bf124e000c8e9cd2f8b0f58ac10ca49024ecfde1ff5f10b4847a37b7dee1e7","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-06-30T15:58:54Z","title_canon_sha256":"e58b4608bc03a6a6b270d491e81c4e2db0e39ad8868b1bc5cef3dbf03224387e"},"schema_version":"1.0","source":{"id":"1907.00403","kind":"arxiv","version":1}},"canonical_sha256":"88fe9af51dc0793b973c1df6186de708d24fe30d8e4a3f609cb16cfb7c8358ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"88fe9af51dc0793b973c1df6186de708d24fe30d8e4a3f609cb16cfb7c8358ad","first_computed_at":"2026-07-05T05:05:24.547160Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:05:24.547160Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oCz9IvljQ7XpZFcPlS9XICtSdam/OiLfxwRZ3SZtPY9EaK2jSbJg8Vf+ogVV+ti5MQyU24kLhwHmJqmS6yjlCA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:05:24.547616Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.00403","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16eec31ca4cb89d007e870b59ff5392c2bfc8e369b20188b06e937d4d0deb172","sha256:0226a555bc2afddee17ef975d04c76c6ecf2fc8ffe7d6ed66c43f7b45c4e1d91"],"state_sha256":"55d6840397fefe5805ef027441184cfa69468170fc3891eb28448dda209d6b93"}