{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:AUX5WGECKC6XUN5PXDAEM7SL4A","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":"2aa63158b8f10f44a33752325fb7a56327ef9d9c8d8f2480f246efb3fb5bc8fa","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-06-20T21:11:22Z","title_canon_sha256":"c0e4ec9792dfcc0a7ba021fcd7a535e0ff72e91a19bbbb8c206a1ce43c6d1b0f"},"schema_version":"1.0","source":{"id":"1606.06971","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.06971","created_at":"2026-05-18T00:51:17Z"},{"alias_kind":"arxiv_version","alias_value":"1606.06971v2","created_at":"2026-05-18T00:51:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.06971","created_at":"2026-05-18T00:51:17Z"},{"alias_kind":"pith_short_12","alias_value":"AUX5WGECKC6X","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"AUX5WGECKC6XUN5P","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"AUX5WGEC","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:8d11718c71ef11bcd682488aebf286ea00f48d75863b19321fc8c7ae1fe32e9f","target":"graph","created_at":"2026-05-18T00:51:17Z","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 provide a concise review on multi-field inflation and cosmological perturbations. We discuss convenient and physically meaningful bases in terms of which perturbations can be systematically studied. We give formal accounts on the gauge fixing conditions and present the perturbation action in two gauges. We also briefly review non-linear perturbations.","authors_text":"Jinn-Ouk Gong","cross_cats":["astro-ph.CO","hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-06-20T21:11:22Z","title":"Multi-field inflation and cosmological perturbations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.06971","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":"sha256:4e613b0cc14e1cc41fe68cc4cc51e3ab85ca1ac008c7c1ebb7407a570af2c0e2","target":"record","created_at":"2026-05-18T00:51:17Z","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":"2aa63158b8f10f44a33752325fb7a56327ef9d9c8d8f2480f246efb3fb5bc8fa","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-06-20T21:11:22Z","title_canon_sha256":"c0e4ec9792dfcc0a7ba021fcd7a535e0ff72e91a19bbbb8c206a1ce43c6d1b0f"},"schema_version":"1.0","source":{"id":"1606.06971","kind":"arxiv","version":2}},"canonical_sha256":"052fdb188250bd7a37afb8c0467e4be00fca40e61c84b1be5f5da0d9ed4efe8b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"052fdb188250bd7a37afb8c0467e4be00fca40e61c84b1be5f5da0d9ed4efe8b","first_computed_at":"2026-05-18T00:51:17.110604Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:17.110604Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"moiXya4mwZ+qYYKun5J+DsoA4KAXWN9JjJvL5SrjGK0jmVcjPIaSinMasr0CZXNhwOhIQmmmrybmfRcW/UZcBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:17.111672Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.06971","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4e613b0cc14e1cc41fe68cc4cc51e3ab85ca1ac008c7c1ebb7407a570af2c0e2","sha256:8d11718c71ef11bcd682488aebf286ea00f48d75863b19321fc8c7ae1fe32e9f"],"state_sha256":"38f6841c8f4331bfdf9650ed0e49d9a2acdf29162ef22a4a604135451ea42c05"}