{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:VWABWDALWBIARVFW5ONOEEBBYI","short_pith_number":"pith:VWABWDAL","schema_version":"1.0","canonical_sha256":"ad801b0c0bb05008d4b6eb9ae21021c22983681f5457577223611bd7646fcb0c","source":{"kind":"arxiv","id":"1805.12563","version":2},"attestation_state":"computed","paper":{"title":"Flattened non-Gaussianities from the effective field theory of inflation with imaginary speed of sound","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc"],"primary_cat":"hep-th","authors_text":"Sebastian Garcia-Saenz, S\\'ebastien Renaux-Petel","submitted_at":"2018-05-31T17:07:52Z","abstract_excerpt":"Inflationary perturbations in multi-field theories can exhibit a transient tachyonic instability as a consequence of their non-trivial motion in the internal field space. When an effective single-field description is applicable, the resulting theory is characterized by fluctuations that propagate with an $imaginary$ speed of sound. We use the effective field theory of fluctuations to study such a set-up in a model-independent manner, highlighting the peculiarities and subtleties that make it different from the standard case. In particular, perturbations feature exponentially growing and decayi"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1805.12563","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-05-31T17:07:52Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"cc8233920f19f13722d4890d5cc6ef8c8020105d3240a8f9e519c20655e18612","abstract_canon_sha256":"0b521a3866dec6e1c6c7ca291ce563bd75cdda5b8a4527c6b774404b1491e474"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:29.412224Z","signature_b64":"wd30IPmocgVAX8vk4lD5W7zM2EronaIThMa8TYjGunb98F0m4QfzQH9nTQQC2m8TtsQ8FyOWWS3emXVFo5L4Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad801b0c0bb05008d4b6eb9ae21021c22983681f5457577223611bd7646fcb0c","last_reissued_at":"2026-05-18T00:01:29.411757Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:29.411757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Flattened non-Gaussianities from the effective field theory of inflation with imaginary speed of sound","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc"],"primary_cat":"hep-th","authors_text":"Sebastian Garcia-Saenz, S\\'ebastien Renaux-Petel","submitted_at":"2018-05-31T17:07:52Z","abstract_excerpt":"Inflationary perturbations in multi-field theories can exhibit a transient tachyonic instability as a consequence of their non-trivial motion in the internal field space. When an effective single-field description is applicable, the resulting theory is characterized by fluctuations that propagate with an $imaginary$ speed of sound. We use the effective field theory of fluctuations to study such a set-up in a model-independent manner, highlighting the peculiarities and subtleties that make it different from the standard case. In particular, perturbations feature exponentially growing and decayi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.12563","kind":"arxiv","version":2},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1805.12563","created_at":"2026-05-18T00:01:29.411834+00:00"},{"alias_kind":"arxiv_version","alias_value":"1805.12563v2","created_at":"2026-05-18T00:01:29.411834+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.12563","created_at":"2026-05-18T00:01:29.411834+00:00"},{"alias_kind":"pith_short_12","alias_value":"VWABWDALWBIA","created_at":"2026-05-18T12:32:59.047623+00:00"},{"alias_kind":"pith_short_16","alias_value":"VWABWDALWBIARVFW","created_at":"2026-05-18T12:32:59.047623+00:00"},{"alias_kind":"pith_short_8","alias_value":"VWABWDAL","created_at":"2026-05-18T12:32:59.047623+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VWABWDALWBIARVFW5ONOEEBBYI","json":"https://pith.science/pith/VWABWDALWBIARVFW5ONOEEBBYI.json","graph_json":"https://pith.science/api/pith-number/VWABWDALWBIARVFW5ONOEEBBYI/graph.json","events_json":"https://pith.science/api/pith-number/VWABWDALWBIARVFW5ONOEEBBYI/events.json","paper":"https://pith.science/paper/VWABWDAL"},"agent_actions":{"view_html":"https://pith.science/pith/VWABWDALWBIARVFW5ONOEEBBYI","download_json":"https://pith.science/pith/VWABWDALWBIARVFW5ONOEEBBYI.json","view_paper":"https://pith.science/paper/VWABWDAL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1805.12563&json=true","fetch_graph":"https://pith.science/api/pith-number/VWABWDALWBIARVFW5ONOEEBBYI/graph.json","fetch_events":"https://pith.science/api/pith-number/VWABWDALWBIARVFW5ONOEEBBYI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VWABWDALWBIARVFW5ONOEEBBYI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VWABWDALWBIARVFW5ONOEEBBYI/action/storage_attestation","attest_author":"https://pith.science/pith/VWABWDALWBIARVFW5ONOEEBBYI/action/author_attestation","sign_citation":"https://pith.science/pith/VWABWDALWBIARVFW5ONOEEBBYI/action/citation_signature","submit_replication":"https://pith.science/pith/VWABWDALWBIARVFW5ONOEEBBYI/action/replication_record"}},"created_at":"2026-05-18T00:01:29.411834+00:00","updated_at":"2026-05-18T00:01:29.411834+00:00"}