{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:BKCVCTS6PNAP37ZGB7TGSHF4ZD","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":"2e1bd1be8ad20afede28c5596defd4e4704b7769ec39dfc9f7c148a77e052152","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-22T19:41:02Z","title_canon_sha256":"8619e1189989d1bebc0ef7585679b0b0c563eaf1bb0789179cef997debc48823"},"schema_version":"1.0","source":{"id":"0912.4277","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.4277","created_at":"2026-05-18T02:10:14Z"},{"alias_kind":"arxiv_version","alias_value":"0912.4277v1","created_at":"2026-05-18T02:10:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.4277","created_at":"2026-05-18T02:10:14Z"},{"alias_kind":"pith_short_12","alias_value":"BKCVCTS6PNAP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BKCVCTS6PNAP37ZG","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BKCVCTS6","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:294e6b008bd16208ac45f74eff8ee9addcb06ddbb8ed08613e7fd52008b60c74","target":"graph","created_at":"2026-05-18T02:10:14Z","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 demonstrate that the output of a cosmological N-body simulation can, to remarkable accuracy, be scaled to represent the growth of large-scale structure in a cosmology with parameters similar to but different from those originally assumed. Our algorithm involves three steps: a reassignment of length, mass and velocity units, a relabelling of the time axis, and a rescaling of the amplitudes of individual large-scale fluctuation modes. We test it using two matched pairs of simulations. Within each pair, one simulation assumes parameters consistent with analyses of the first-year WMAP data. The","authors_text":"Raul E. Angulo, Simon D. M. White","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-22T19:41:02Z","title":"One simulation to fit them all - changing the background parameters of a cosmological N-body simulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.4277","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:f35ddf4f93750119e0b0bea40c0f067ee1fc2d0fafb28a5665d2a574cf23af6d","target":"record","created_at":"2026-05-18T02:10:14Z","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":"2e1bd1be8ad20afede28c5596defd4e4704b7769ec39dfc9f7c148a77e052152","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-22T19:41:02Z","title_canon_sha256":"8619e1189989d1bebc0ef7585679b0b0c563eaf1bb0789179cef997debc48823"},"schema_version":"1.0","source":{"id":"0912.4277","kind":"arxiv","version":1}},"canonical_sha256":"0a85514e5e7b40fdff260fe6691cbcc8df81b396c381f3a519ca306c5ad214a0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a85514e5e7b40fdff260fe6691cbcc8df81b396c381f3a519ca306c5ad214a0","first_computed_at":"2026-05-18T02:10:14.815892Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:14.815892Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KgK/J0AdDFxBulYfVEZdBiiR15wHLeAsu3W0libcPJI21pPJsfm//R4QFLwi6kB4uX8TMDieeyWKM28Tj3LpBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:14.816497Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.4277","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f35ddf4f93750119e0b0bea40c0f067ee1fc2d0fafb28a5665d2a574cf23af6d","sha256:294e6b008bd16208ac45f74eff8ee9addcb06ddbb8ed08613e7fd52008b60c74"],"state_sha256":"bcad4c4c17542ce129671f51a052c0c06b24907d1d1d1b0e228e770135023766"}