{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:SFO532PWVV3FYAMF54MCYKGURR","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":"3e2172639e1e17d531dd5e1f17ce8285706a58ca2c869693be8d321c1fb1e987","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-02-24T12:04:08Z","title_canon_sha256":"6eb3fd21b00558a4e2d5d082c4ae2f0812f921760331d20a443a8f99c5709955"},"schema_version":"1.0","source":{"id":"astro-ph/0302479","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0302479","created_at":"2026-07-04T15:22:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0302479v2","created_at":"2026-07-04T15:22:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0302479","created_at":"2026-07-04T15:22:59Z"},{"alias_kind":"pith_short_12","alias_value":"SFO532PWVV3F","created_at":"2026-07-04T15:22:59Z"},{"alias_kind":"pith_short_16","alias_value":"SFO532PWVV3FYAMF","created_at":"2026-07-04T15:22:59Z"},{"alias_kind":"pith_short_8","alias_value":"SFO532PW","created_at":"2026-07-04T15:22:59Z"}],"graph_snapshots":[{"event_id":"sha256:95d0e37a57ee7a911408a38d4d2d34b043be375ec60f045b94dafd6154232eaf","target":"graph","created_at":"2026-07-04T15:22:59Z","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/0302479/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent fits of cosmological parameters by the Wilkinson Microwave Anisotropy Probe (WMAP) measurement favor a primordial scalar spectrum with varying index. This result, if stands, could severely constrain inflation model buildings. Most extant slow-roll inflation models allow for only a tiny amount of scale variations in the spectrum. We propose in this paper an extra-dimensional inflation model which is natural theoretically and can generate the required variations of the spectral index as implied by the WMAP for suitable choices of parameters.","authors_text":"Bo Feng, Mingzhe Li, Ren-Jie Zhang, Xinmin Zhang","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-02-24T12:04:08Z","title":"An inflation model with large variations in spectral index"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0302479","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":"sha256:9bb20cf68ec09f3619f1b1f842c1f112ef9711348f2d768d48c3fc4c8d28ce99","target":"record","created_at":"2026-07-04T15:22:59Z","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":"3e2172639e1e17d531dd5e1f17ce8285706a58ca2c869693be8d321c1fb1e987","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-02-24T12:04:08Z","title_canon_sha256":"6eb3fd21b00558a4e2d5d082c4ae2f0812f921760331d20a443a8f99c5709955"},"schema_version":"1.0","source":{"id":"astro-ph/0302479","kind":"arxiv","version":2}},"canonical_sha256":"915ddde9f6ad765c0185ef182c28d48c4655da0a61d131df66c1fe0f2e40d6c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"915ddde9f6ad765c0185ef182c28d48c4655da0a61d131df66c1fe0f2e40d6c4","first_computed_at":"2026-07-04T15:22:59.106975Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:22:59.106975Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ek4tCi83snXdvY/PpoQ1uJdPkRDupe2Z1ICJDR0GPC8PaOKk6jYKoysOoIILbk8cAP+l+vOb39I3TVaoG/U9CQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:22:59.107351Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0302479","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9bb20cf68ec09f3619f1b1f842c1f112ef9711348f2d768d48c3fc4c8d28ce99","sha256:95d0e37a57ee7a911408a38d4d2d34b043be375ec60f045b94dafd6154232eaf"],"state_sha256":"839fb3180fb78d89baf80381210e1f3cee728b3afe17122d87a30da2679112b5"}