{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:KRTJ2TY23V4MU256X7FOFYXSLD","short_pith_number":"pith:KRTJ2TY2","canonical_record":{"source":{"id":"1609.08959","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-09-28T15:16:41Z","cross_cats_sorted":[],"title_canon_sha256":"571970295e5297eda7e1212bf05bd39875ac800805f8300fcc1772bb0b49bf8e","abstract_canon_sha256":"6c24e70613aad33077d34439fa4f49eb202c487904b13aa4b54923c1e62a96b4"},"schema_version":"1.0"},"canonical_sha256":"54669d4f1add78ca6bbebfcae2e2f258e20a1f1d8d525d2dee92179cc52a6412","source":{"kind":"arxiv","id":"1609.08959","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"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:KRTJ2TY23V4MU256X7FOFYXSLD","target":"record","payload":{"canonical_record":{"source":{"id":"1609.08959","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-09-28T15:16:41Z","cross_cats_sorted":[],"title_canon_sha256":"571970295e5297eda7e1212bf05bd39875ac800805f8300fcc1772bb0b49bf8e","abstract_canon_sha256":"6c24e70613aad33077d34439fa4f49eb202c487904b13aa4b54923c1e62a96b4"},"schema_version":"1.0"},"canonical_sha256":"54669d4f1add78ca6bbebfcae2e2f258e20a1f1d8d525d2dee92179cc52a6412","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:39.648762Z","signature_b64":"Y+MN625T83WAeekLIyftbp7wwgBFTaD44uJnrt+56ktfR8jHh0Eu0dhG1NMmCp1A7ml5zXys6luc4LzrXaMvDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"54669d4f1add78ca6bbebfcae2e2f258e20a1f1d8d525d2dee92179cc52a6412","last_reissued_at":"2026-05-18T00:46:39.648058Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:39.648058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.08959","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:46:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1x54K5duMfGyGO/AUSLK7ezoXmVOKNFEtjYsW1LpPzo8VNCfxep26gtA9Stv4Okcz0tdtodZ/iMGg4wsZsBbAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T16:24:02.176156Z"},"content_sha256":"9db37801442b593366de211a5cc904f9380d5523071919c9a9d92a0a11e64d6a","schema_version":"1.0","event_id":"sha256:9db37801442b593366de211a5cc904f9380d5523071919c9a9d92a0a11e64d6a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:KRTJ2TY23V4MU256X7FOFYXSLD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Planck Limits on Non-canonical Generalizations of Large-field Inflation Models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Nina K. Stein, SUNY), William H. Kinney (University at Buffalo","submitted_at":"2016-09-28T15:16:41Z","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"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.08959","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":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:46:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aReigNTxmMKIBcQ3rZEZ10egWNyl+woKRy07XdHjbeDUD+ZHMhieWn1Q0mgqz50hNIsmGUObWR09GcO9Vi6tAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T16:24:02.176838Z"},"content_sha256":"6e3b5fbb35783e97803befc3d6562df094b94fda518ab7c393466ff2504c44bd","schema_version":"1.0","event_id":"sha256:6e3b5fbb35783e97803befc3d6562df094b94fda518ab7c393466ff2504c44bd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KRTJ2TY23V4MU256X7FOFYXSLD/bundle.json","state_url":"https://pith.science/pith/KRTJ2TY23V4MU256X7FOFYXSLD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KRTJ2TY23V4MU256X7FOFYXSLD/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-20T16:24:02Z","links":{"resolver":"https://pith.science/pith/KRTJ2TY23V4MU256X7FOFYXSLD","bundle":"https://pith.science/pith/KRTJ2TY23V4MU256X7FOFYXSLD/bundle.json","state":"https://pith.science/pith/KRTJ2TY23V4MU256X7FOFYXSLD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KRTJ2TY23V4MU256X7FOFYXSLD/bundle.json"},"state":{"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"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BW+u9sjKfkZ6FK9Gr6pY1/Ab1avjY0Ecgkw81sIld4Shbz2rcRM1BKk9T8yJy/sl11BlLbjLiOdeKUqEUaWOAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T16:24:02.180093Z","bundle_sha256":"76e1428a1603195bb085c5aa2ab368da31306e1b413ccb7bbf1e460081b59d10"}}