{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VV3ECEHHOK5625M3OBSELWRAHF","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":"1818bee6ebf4771dc679d4d39ac4ff8fd3632ff64ec54d6cab8067de9211e2ff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-06-29T19:17:25Z","title_canon_sha256":"130819aa3fceefebc1ae5707ffae4365c3814bdf40496671e6a1fb153eb8c981"},"schema_version":"1.0","source":{"id":"1807.00040","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.00040","created_at":"2026-05-17T23:49:11Z"},{"alias_kind":"arxiv_version","alias_value":"1807.00040v2","created_at":"2026-05-17T23:49:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.00040","created_at":"2026-05-17T23:49:11Z"},{"alias_kind":"pith_short_12","alias_value":"VV3ECEHHOK56","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VV3ECEHHOK5625M3","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VV3ECEHH","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:dbcecd285e23bebb8d2cca373ba6a05089548d8965693d63bd9d755529e818db","target":"graph","created_at":"2026-05-17T23:49:11Z","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 use a suite of high-resolution $N$-body simulations and state-of-the-art perturbation theory to improve the code halofit, which predicts the nonlinear matter power spectrum. We restrict attention to parameters in the vicinity of the Planck Collaboration's best fit. On large-scales ($k\\lesssim 0.07 h/{\\rm Mpc}$), our model evaluates the 2-loop calculation from the Multi-point Propagator Theory of Bernardeau et al.(2012). On smaller scales ($k \\gtrsim 0.7 h/{\\rm Mpc}$), we transition to a smoothing-spline-fit model, that characterises the differences between the Takahashi et al. (2012) recali","authors_text":"Raul E. Angulo, Robert E. Smith","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-06-29T19:17:25Z","title":"Precision modelling of the matter power spectrum in a Planck-like Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.00040","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":"sha256:002b759c96c02a0cbacb51fc5f596db05d4a7075fd22a96d2c2f76923d93cc42","target":"record","created_at":"2026-05-17T23:49:11Z","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":"1818bee6ebf4771dc679d4d39ac4ff8fd3632ff64ec54d6cab8067de9211e2ff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-06-29T19:17:25Z","title_canon_sha256":"130819aa3fceefebc1ae5707ffae4365c3814bdf40496671e6a1fb153eb8c981"},"schema_version":"1.0","source":{"id":"1807.00040","kind":"arxiv","version":2}},"canonical_sha256":"ad764110e772bbed759b706445da20395ed9898e80824f26baaf66aa48f4d23b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad764110e772bbed759b706445da20395ed9898e80824f26baaf66aa48f4d23b","first_computed_at":"2026-05-17T23:49:11.590232Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:11.590232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xWTU9CPDhO0tZ58riea4kGngz+bV1yNzHxLsvBcGrYfOiiNTqcUJBPJ0gqBxkQvQLppbWiqTRZJmnHrxupxICQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:11.590902Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.00040","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:002b759c96c02a0cbacb51fc5f596db05d4a7075fd22a96d2c2f76923d93cc42","sha256:dbcecd285e23bebb8d2cca373ba6a05089548d8965693d63bd9d755529e818db"],"state_sha256":"8e67f90dc6618d8d097a457de0eeaecce3a60f6da16dedea953e7eb88c80a8bd"}