{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:32ASKQAY3SU6X3B6PMSAM3CMBU","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":"e3d10945eb861a9a28de276a0c8bbc701c10095d8e5c827cf0c17f326704271e","cross_cats_sorted":["astro-ph","gr-qc","hep-ph"],"license":"","primary_cat":"hep-th","submitted_at":"2000-06-01T17:15:00Z","title_canon_sha256":"ee678f4b74e3709a2606c3a7df2daad1eaeb05e80b871252578726e56b1bb95e"},"schema_version":"1.0","source":{"id":"hep-th/0006007","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0006007","created_at":"2026-07-04T16:20:54Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0006007v2","created_at":"2026-07-04T16:20:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0006007","created_at":"2026-07-04T16:20:54Z"},{"alias_kind":"pith_short_12","alias_value":"32ASKQAY3SU6","created_at":"2026-07-04T16:20:54Z"},{"alias_kind":"pith_short_16","alias_value":"32ASKQAY3SU6X3B6","created_at":"2026-07-04T16:20:54Z"},{"alias_kind":"pith_short_8","alias_value":"32ASKQAY","created_at":"2026-07-04T16:20:54Z"}],"graph_snapshots":[{"event_id":"sha256:00f0768b8b75b202be29ea1f1a7513dd17070b17a1291b7d243dab89863d6542","target":"graph","created_at":"2026-07-04T16:20:54Z","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/hep-th/0006007/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We discuss the evolution of gravitational waves in a brane-world cosmology embedded in five-dimensional anti-de Sitter spacetime. We show that during slow-roll inflation, modelled as a period of quasi-de Sitter expansion on the brane, there is a discrete normalizable massless graviton mode. There is a mass gap due to the expansion, above which there is a continuum of massive modes. Only the massless mode is `light' compared with the Hubble scale during inflation, leading to the production of classical perturbations on large scales from vacuum fluctuations on small scales. We calculate the ampl","authors_text":"David Langlois, David Wands, Roy Maartens","cross_cats":["astro-ph","gr-qc","hep-ph"],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"2000-06-01T17:15:00Z","title":"Gravitational waves from inflation on the brane"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0006007","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:f2ee83b362b3021dd80cbbd9c14a4659578d720d60738a0abf731e3d4c42f00a","target":"record","created_at":"2026-07-04T16:20:54Z","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":"e3d10945eb861a9a28de276a0c8bbc701c10095d8e5c827cf0c17f326704271e","cross_cats_sorted":["astro-ph","gr-qc","hep-ph"],"license":"","primary_cat":"hep-th","submitted_at":"2000-06-01T17:15:00Z","title_canon_sha256":"ee678f4b74e3709a2606c3a7df2daad1eaeb05e80b871252578726e56b1bb95e"},"schema_version":"1.0","source":{"id":"hep-th/0006007","kind":"arxiv","version":2}},"canonical_sha256":"de81254018dca9ebec3e7b24066c4c0d016c81fabc09a52b42b7f758e1fd94c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de81254018dca9ebec3e7b24066c4c0d016c81fabc09a52b42b7f758e1fd94c7","first_computed_at":"2026-07-04T16:20:54.610292Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:20:54.610292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2Url4vrCX//6bLM0eqG0Dd9XiimCUiH/Enzq2p0FxhvjkwE3h2h2pbGEiT/f+OB1vJvdx5HzVm36BoVXZIhXDg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:20:54.610705Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/0006007","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2ee83b362b3021dd80cbbd9c14a4659578d720d60738a0abf731e3d4c42f00a","sha256:00f0768b8b75b202be29ea1f1a7513dd17070b17a1291b7d243dab89863d6542"],"state_sha256":"5bf8dbc3bc870c0069be2bc6c693170abf4994cf536dd7a147a5a3a1b3847d2d"}