{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:KRTJ2TY23V4MU256X7FOFYXSLD","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":"6c24e70613aad33077d34439fa4f49eb202c487904b13aa4b54923c1e62a96b4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-09-28T15:16:41Z","title_canon_sha256":"571970295e5297eda7e1212bf05bd39875ac800805f8300fcc1772bb0b49bf8e"},"schema_version":"1.0","source":{"id":"1609.08959","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.08959","created_at":"2026-05-18T00:46:39Z"},{"alias_kind":"arxiv_version","alias_value":"1609.08959v3","created_at":"2026-05-18T00:46:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.08959","created_at":"2026-05-18T00:46:39Z"},{"alias_kind":"pith_short_12","alias_value":"KRTJ2TY23V4M","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"KRTJ2TY23V4MU256","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"KRTJ2TY2","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:6e3b5fbb35783e97803befc3d6562df094b94fda518ab7c393466ff2504c44bd","target":"graph","created_at":"2026-05-18T00:46:39Z","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 this paper, we consider two case examples of Dirac-Born-Infeld (DBI) generalizations of canonical large-field inflation models, characterized by a reduced sound speed, $c_{S} < 1$. The reduced speed of sound lowers the tensor-scalar ratio, improving the fit of the models to the data, but increases the equilateral-mode non-Gaussianity, $f^\\mathrm{equil.}_\\mathrm{NL}$, which the latest results from the Planck satellite constrain by a new upper bound. We examine constraints on these models in light of the most recent Planck and BICEP/Keck results, and find that they have a greatly decreased wi","authors_text":"Nina K. Stein, SUNY), William H. Kinney (University at Buffalo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-09-28T15:16:41Z","title":"Planck Limits on Non-canonical Generalizations of Large-field Inflation Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.08959","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":"sha256:9db37801442b593366de211a5cc904f9380d5523071919c9a9d92a0a11e64d6a","target":"record","created_at":"2026-05-18T00:46:39Z","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":"6c24e70613aad33077d34439fa4f49eb202c487904b13aa4b54923c1e62a96b4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-09-28T15:16:41Z","title_canon_sha256":"571970295e5297eda7e1212bf05bd39875ac800805f8300fcc1772bb0b49bf8e"},"schema_version":"1.0","source":{"id":"1609.08959","kind":"arxiv","version":3}},"canonical_sha256":"54669d4f1add78ca6bbebfcae2e2f258e20a1f1d8d525d2dee92179cc52a6412","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"54669d4f1add78ca6bbebfcae2e2f258e20a1f1d8d525d2dee92179cc52a6412","first_computed_at":"2026-05-18T00:46:39.648058Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:39.648058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y+MN625T83WAeekLIyftbp7wwgBFTaD44uJnrt+56ktfR8jHh0Eu0dhG1NMmCp1A7ml5zXys6luc4LzrXaMvDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:39.648762Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.08959","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9db37801442b593366de211a5cc904f9380d5523071919c9a9d92a0a11e64d6a","sha256:6e3b5fbb35783e97803befc3d6562df094b94fda518ab7c393466ff2504c44bd"],"state_sha256":"9f4a9c1c718252c100c1f8ed3278c792dbbada70814eaae519002e8b970ed2ac"}