{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:QJBY2KSX67VIMDTGXND7NDA3ZB","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":"6d0399a6ee2466968ed3eff8b172f78fce7ff32a475077367fac4786fd5ca3c1","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-05-07T08:54:21Z","title_canon_sha256":"694cad988494e24465e2230e2a86230f3f86fa957390cd9f2c19e5b8a5fa0cb9"},"schema_version":"1.0","source":{"id":"1905.02414","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.02414","created_at":"2026-05-17T23:45:22Z"},{"alias_kind":"arxiv_version","alias_value":"1905.02414v1","created_at":"2026-05-17T23:45:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.02414","created_at":"2026-05-17T23:45:22Z"},{"alias_kind":"pith_short_12","alias_value":"QJBY2KSX67VI","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"QJBY2KSX67VIMDTG","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"QJBY2KSX","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:b722af8d8c79fb1bf96a7557535441718e09f9f2bd392a29e87a659f6287f9ad","target":"graph","created_at":"2026-05-17T23:45:22Z","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 study the two-field warm inflation models with a double quadratic potential and a linear temperature dependent dissipative coefficient. We derived the evolution equation of all kinds of perturbations without assuming slow-roll approximation, and obtained the curvature power spectrum at the end of inflation with a fully numerical method. Then we compute the scalar spectral index $n_s$, tensor-to-scalar ratio $r$ for several representative potentials, and compare our results with observational data. At last, we use Planck data to constrain the parameters in our models. This work is a natural ","authors_text":"Jian-Yang Zhu, Xiao-Min Zhang, Yang-Yang Wang","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-05-07T08:54:21Z","title":"Observational Constraints on Two-field Warm Inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.02414","kind":"arxiv","version":1},"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":"sha256:76fda706b05296eca346572417ef30f024a62da06f235dccdf03cac3072ed614","target":"record","created_at":"2026-05-17T23:45:22Z","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":"6d0399a6ee2466968ed3eff8b172f78fce7ff32a475077367fac4786fd5ca3c1","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-05-07T08:54:21Z","title_canon_sha256":"694cad988494e24465e2230e2a86230f3f86fa957390cd9f2c19e5b8a5fa0cb9"},"schema_version":"1.0","source":{"id":"1905.02414","kind":"arxiv","version":1}},"canonical_sha256":"82438d2a57f7ea860e66bb47f68c1bc851d85716b2141e4004f5c0ef1c70547b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"82438d2a57f7ea860e66bb47f68c1bc851d85716b2141e4004f5c0ef1c70547b","first_computed_at":"2026-05-17T23:45:22.220423Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:22.220423Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M2VMlqu+5WMf/obD01GnIdOUqqJqAJaOGnyDPd8WkHEvpo6KrNUm5fqLOhLitLS1rgTKicbHGyWnJnj2QWfdBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:22.220878Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.02414","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:76fda706b05296eca346572417ef30f024a62da06f235dccdf03cac3072ed614","sha256:b722af8d8c79fb1bf96a7557535441718e09f9f2bd392a29e87a659f6287f9ad"],"state_sha256":"d7ad17156a2551f2a58bdc67454866dad4b3bc35eee36ac07ceb32e3690f3694"}