{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VWJIC4SOTKGRXVGFZSQV6MIAJ3","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":"2b9b2a7c5b7848d9757c11298636b5d2a574c3fc932261153005585b4c3690ea","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-02-06T10:59:22Z","title_canon_sha256":"2bc61b1160142eee79f0448e4e470cdd660277486088361f1e98d2b070206615"},"schema_version":"1.0","source":{"id":"1502.01856","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.01856","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"arxiv_version","alias_value":"1502.01856v3","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.01856","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"pith_short_12","alias_value":"VWJIC4SOTKGR","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"VWJIC4SOTKGRXVGF","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"VWJIC4SO","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:13935a8cbb6a499c5618308655033bb7cce5bea055b68b4210e7e6cf6e61534e","target":"graph","created_at":"2026-05-18T01:41:04Z","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":"PolyChord is a novel nested sampling algorithm tailored for high dimensional parameter spaces. In addition, it can fully exploit a hierarchy of parameter speeds such as is found in CosmoMC and CAMB. It utilises slice sampling at each iteration to sample within the hard likelihood constraint of nested sampling. It can identify and evolve separate modes of a posterior semi-independently and is parallelised using openMPI. PolyChord is available for download at: http://ccpforge.cse.rl.ac.uk/gf/project/polychord/","authors_text":"A.N. Lasenby, M.P. Hobson, W.J. Handley","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-02-06T10:59:22Z","title":"PolyChord: nested sampling for cosmology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.01856","kind":"arxiv","version":3},"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":"sha256:99e6c1402f651628703857f8f99f30b4791e0288ee253ba2bd410b0c5f83d305","target":"record","created_at":"2026-05-18T01:41:04Z","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":"2b9b2a7c5b7848d9757c11298636b5d2a574c3fc932261153005585b4c3690ea","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-02-06T10:59:22Z","title_canon_sha256":"2bc61b1160142eee79f0448e4e470cdd660277486088361f1e98d2b070206615"},"schema_version":"1.0","source":{"id":"1502.01856","kind":"arxiv","version":3}},"canonical_sha256":"ad9281724e9a8d1bd4c5cca15f31004ec9ff251f7cb51418bc36ab011457ef68","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad9281724e9a8d1bd4c5cca15f31004ec9ff251f7cb51418bc36ab011457ef68","first_computed_at":"2026-05-18T01:41:04.476577Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:04.476577Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1olLlQdRM+ZKgkEPK1oUhgRtGCf0zUT1UcCXh7V/Z1EfbiZV3yxICR2xTqVB5tOTdDGmM+eLqx3btmVwEUhcCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:04.477210Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.01856","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:99e6c1402f651628703857f8f99f30b4791e0288ee253ba2bd410b0c5f83d305","sha256:13935a8cbb6a499c5618308655033bb7cce5bea055b68b4210e7e6cf6e61534e"],"state_sha256":"6bbb62fbb8115a6583cb5e3b240bf472de10822795af6268b9cffac9701a3966"}