{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:AMJK36T3KPXIPPSWMDTCRJQNL2","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":"8275356bebe587b9c36dd00b1f02f3b4332916442a3a1b18e90b393ae2087d0d","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-08-26T19:20:58Z","title_canon_sha256":"bda68728e979671f4e10cb749b4c46f06d683d033b5967baa41b05985262f469"},"schema_version":"1.0","source":{"id":"1008.4567","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.4567","created_at":"2026-05-18T04:27:45Z"},{"alias_kind":"arxiv_version","alias_value":"1008.4567v2","created_at":"2026-05-18T04:27:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.4567","created_at":"2026-05-18T04:27:45Z"},{"alias_kind":"pith_short_12","alias_value":"AMJK36T3KPXI","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"AMJK36T3KPXIPPSW","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"AMJK36T3","created_at":"2026-05-18T12:26:05Z"}],"graph_snapshots":[{"event_id":"sha256:bbaefdf3e54307b79d3f77c39e2d003b1b864866bac38ca5cc5378e760ae1479","target":"graph","created_at":"2026-05-18T04:27:45Z","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":"In inflationary models, the predicted amplitude of primordial density perturbations Q is much larger than the observed value (~10^{-5}) for natural choices of parameters. To explain the requisite exponential fine-tuning, anthropic selection is often invoked, especially in cases where microphysics is expected to produce a complex energy landscape. By contrast, we find examples of ekpyrotic models based on heterotic M-theory for which dynamical selection naturally favors the observed value of Q.","authors_text":"Jean-Luc Lehners, Paul J. Steinhardt","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-08-26T19:20:58Z","title":"Dynamical Selection of the Primordial Density Fluctuation Amplitude"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.4567","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:baad7744af3b91d3a0c2511e9de2ab979f1f19e997138fec27b69f3de69cad4d","target":"record","created_at":"2026-05-18T04:27:45Z","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":"8275356bebe587b9c36dd00b1f02f3b4332916442a3a1b18e90b393ae2087d0d","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-08-26T19:20:58Z","title_canon_sha256":"bda68728e979671f4e10cb749b4c46f06d683d033b5967baa41b05985262f469"},"schema_version":"1.0","source":{"id":"1008.4567","kind":"arxiv","version":2}},"canonical_sha256":"0312adfa7b53ee87be5660e628a60d5e9a7dcd65693bb60c68f9c5aff8f4da48","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0312adfa7b53ee87be5660e628a60d5e9a7dcd65693bb60c68f9c5aff8f4da48","first_computed_at":"2026-05-18T04:27:45.052179Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:27:45.052179Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VVvpG8zoLSL2q10cBqeANhtOWNca0HIVvY7vlVSmF8avskBWnU5FQHwmuXiVc3Z7r7+zzlbYpK1EYlqB25lWAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:27:45.052835Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.4567","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:baad7744af3b91d3a0c2511e9de2ab979f1f19e997138fec27b69f3de69cad4d","sha256:bbaefdf3e54307b79d3f77c39e2d003b1b864866bac38ca5cc5378e760ae1479"],"state_sha256":"cd8d5f8eaaf2833365017a3770be0e5fecf84a69962ef9674d5c44c0c60cd276"}