{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:FUNTD5DFJWY2MODBRULJOLREMM","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":"337ad6e44144f84d73f4bf89b66a4e455b80a77b59e09d30399e061ce35e2844","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2006-03-29T19:33:59Z","title_canon_sha256":"e89c4a8071c1d312f3bf376dac9b40b1f24ec4e134d19e524bfb1669dd7a25b8"},"schema_version":"1.0","source":{"id":"astro-ph/0603799","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0603799","created_at":"2026-07-04T16:58:31Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0603799v3","created_at":"2026-07-04T16:58:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0603799","created_at":"2026-07-04T16:58:31Z"},{"alias_kind":"pith_short_12","alias_value":"FUNTD5DFJWY2","created_at":"2026-07-04T16:58:31Z"},{"alias_kind":"pith_short_16","alias_value":"FUNTD5DFJWY2MODB","created_at":"2026-07-04T16:58:31Z"},{"alias_kind":"pith_short_8","alias_value":"FUNTD5DF","created_at":"2026-07-04T16:58:31Z"}],"graph_snapshots":[{"event_id":"sha256:109b8bb05f90bce78b99a39da61ab56d359aeb96b925cef04869b3c1507924e4","target":"graph","created_at":"2026-07-04T16:58:31Z","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/astro-ph/0603799/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the bispectrum of the curvature perturbation on uniform energy density hypersurfaces in models of inflation with two scalar fields evolving simultaneously. In the case of a separable potential, it is possible to compute the curvature perturbation up to second order in the perturbations, generated on large scales due to the presence of non-adiabatic perturbations, by employing the $\\delta N$-formalism, in the slow-roll approximation. In this case, we provide an analytic formula for the nonlinear parameter $f_{NL}$. We apply this formula to double inflation with two massive fields, show","authors_text":"David Wands, Filippo Vernizzi","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-03-29T19:33:59Z","title":"Non-Gaussianities in two-field inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0603799","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":"sha256:6bdb102bd71c39414ee5d36dbcd501c12d0e5ad344b6c28ce82d3f995334155f","target":"record","created_at":"2026-07-04T16:58:31Z","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":"337ad6e44144f84d73f4bf89b66a4e455b80a77b59e09d30399e061ce35e2844","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2006-03-29T19:33:59Z","title_canon_sha256":"e89c4a8071c1d312f3bf376dac9b40b1f24ec4e134d19e524bfb1669dd7a25b8"},"schema_version":"1.0","source":{"id":"astro-ph/0603799","kind":"arxiv","version":3}},"canonical_sha256":"2d1b31f4654db1a638618d16972e24631c6b56fd086c969a90c42e7a8675070b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d1b31f4654db1a638618d16972e24631c6b56fd086c969a90c42e7a8675070b","first_computed_at":"2026-07-04T16:58:31.865520Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:58:31.865520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8KD6Ck9nKLDX9vJ2jGJo07zzuXHP74+uOMb/Iogro4CjCGGYd8MdH3Flk+y0KqpIr5djx7Kc3afKRVb8txcQCw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:58:31.865902Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0603799","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6bdb102bd71c39414ee5d36dbcd501c12d0e5ad344b6c28ce82d3f995334155f","sha256:109b8bb05f90bce78b99a39da61ab56d359aeb96b925cef04869b3c1507924e4"],"state_sha256":"4feb77beb3b4029e7c200a3a995af11fe92a7a70337a333f0d1123c0c74b18eb"}