{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:Q7YHTN5FWEGLRAPJFAVWNUTW2J","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":"84020fe06e955b9a836749ac731abe3dc2eddcb652fbe5898cb8a8ca9b90d037","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2002-09-09T14:25:35Z","title_canon_sha256":"b467b01247f8fdd1c0af723c739e0dc8c0832d61da037c47fc7503ccb7d510c0"},"schema_version":"1.0","source":{"id":"astro-ph/0209156","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0209156","created_at":"2026-07-04T17:24:34Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0209156v3","created_at":"2026-07-04T17:24:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0209156","created_at":"2026-07-04T17:24:34Z"},{"alias_kind":"pith_short_12","alias_value":"Q7YHTN5FWEGL","created_at":"2026-07-04T17:24:34Z"},{"alias_kind":"pith_short_16","alias_value":"Q7YHTN5FWEGLRAPJ","created_at":"2026-07-04T17:24:34Z"},{"alias_kind":"pith_short_8","alias_value":"Q7YHTN5F","created_at":"2026-07-04T17:24:34Z"}],"graph_snapshots":[{"event_id":"sha256:ef92927eca34eec0cfdb5b1b1d9f03aa31d7ccd4c931096f61b035476d963183","target":"graph","created_at":"2026-07-04T17:24:34Z","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/0209156/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the first computation of the cosmological perturbations generated during inflation up to second order in deviations from the homogeneous background solution. Our results, which fully account for the inflaton self-interactions as well as for the second-order fluctuations of the background metric, provide the exact expression for the gauge-invariant curvature perturbation bispectrum produced during inflation in terms of the slow-roll parameters or, alternatively, in terms of the scalar spectral $n_S$ and and the tensor to adiabatic scalar amplitude ratio $r$. The bispectrum represents","authors_text":"A. Riotto (Univ. of Padova, INFN Padova), N. Bartolo, S. Matarrese, V. Acquaviva (Univ. of Pisa)","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-09-09T14:25:35Z","title":"Second-Order Cosmological Perturbations from Inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0209156","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":"sha256:64bc519cb7f0ef527f5f1c874f65a7728bc77b63d00ac0777672bcb44f564a08","target":"record","created_at":"2026-07-04T17:24:34Z","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":"84020fe06e955b9a836749ac731abe3dc2eddcb652fbe5898cb8a8ca9b90d037","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2002-09-09T14:25:35Z","title_canon_sha256":"b467b01247f8fdd1c0af723c739e0dc8c0832d61da037c47fc7503ccb7d510c0"},"schema_version":"1.0","source":{"id":"astro-ph/0209156","kind":"arxiv","version":3}},"canonical_sha256":"87f079b7a5b10cb881e9282b66d276d279a2c55697b61d18cfa94a37ab5f248f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"87f079b7a5b10cb881e9282b66d276d279a2c55697b61d18cfa94a37ab5f248f","first_computed_at":"2026-07-04T17:24:34.080118Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:24:34.080118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ccxZkzgGnFMphBVd7xIIw9zyBj0zaIC8rCAk/cA/KxcdjqPgmcPbgsc8T/LSx/WFKMsZPGnnQ6oEyjzd5yDTDA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:24:34.080551Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0209156","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:64bc519cb7f0ef527f5f1c874f65a7728bc77b63d00ac0777672bcb44f564a08","sha256:ef92927eca34eec0cfdb5b1b1d9f03aa31d7ccd4c931096f61b035476d963183"],"state_sha256":"7a2883757eff6e404dd107866898924b0daf1316e55acd311bf113678a4b4e31"}