{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:LPGSQGS2A2PTMS4E66XXW7NS2M","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":"51a9363e81681ccf71b84e77fe492d7e268713a0c3804503bb6967717d4658ef","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-21T19:56:14Z","title_canon_sha256":"e6772561285e7eb1f58fef7bd2b66323181e2bca2986dfb08b95e4816e15620f"},"schema_version":"1.0","source":{"id":"1005.4056","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.4056","created_at":"2026-05-18T04:27:56Z"},{"alias_kind":"arxiv_version","alias_value":"1005.4056v2","created_at":"2026-05-18T04:27:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.4056","created_at":"2026-05-18T04:27:56Z"},{"alias_kind":"pith_short_12","alias_value":"LPGSQGS2A2PT","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"LPGSQGS2A2PTMS4E","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"LPGSQGS2","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:abfca61c8bba55d58baffff3b217d229c9c63ab64fec8dd33fcb6873095580c9","target":"graph","created_at":"2026-05-18T04:27:56Z","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":"We derive semi-analytic formulae for the power spectra of two-field inflation assuming an arbitrary potential and non-canonical kinetic terms, and we use them both to build phenomenological intuition and to constrain classes of two-field models using WMAP data. Using covariant formalism, we first develop a framework for understanding the background field kinematics and introduce a \"slow-turn\" approximation. Next, we find covariant expressions for the evolution of the adiabatic/curvature and entropy/isocurvature modes, and we discuss how the mode evolution can be inferred directly from the back","authors_text":"Courtney M. Peterson (Harvard), Max Tegmark (MIT)","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-21T19:56:14Z","title":"Testing Two-Field Inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.4056","kind":"arxiv","version":2},"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":"sha256:6748ea131a9822eab3d71dcd13f1d8f41aa43f3ba1042709daf5683fcb0b7466","target":"record","created_at":"2026-05-18T04:27:56Z","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":"51a9363e81681ccf71b84e77fe492d7e268713a0c3804503bb6967717d4658ef","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-21T19:56:14Z","title_canon_sha256":"e6772561285e7eb1f58fef7bd2b66323181e2bca2986dfb08b95e4816e15620f"},"schema_version":"1.0","source":{"id":"1005.4056","kind":"arxiv","version":2}},"canonical_sha256":"5bcd281a5a069f364b84f7af7b7db2d316d40f30cfed2e1b6a79f3ea53f2b616","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bcd281a5a069f364b84f7af7b7db2d316d40f30cfed2e1b6a79f3ea53f2b616","first_computed_at":"2026-05-18T04:27:56.882081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:27:56.882081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qEbFWghEdkqcr6YkoZUO8YX9iLJfQjJ/uSrBg8IacvBWfjFFY2WywbhssXC6F7DS665+8Wt70vVi5YM0COakBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:27:56.882654Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.4056","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6748ea131a9822eab3d71dcd13f1d8f41aa43f3ba1042709daf5683fcb0b7466","sha256:abfca61c8bba55d58baffff3b217d229c9c63ab64fec8dd33fcb6873095580c9"],"state_sha256":"1dbbbb3b1ae1cb5e2853ace45c8dfdd4b83aad893215aba0653816e124bb0132"}