{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:UV7S7ZWVK23VDDFR44RTAL4HJM","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":"58da06046df21dc2397f535b46258097fb6190d47d7e093bee376b1d5996499f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-08T13:02:27Z","title_canon_sha256":"e77dd5de190c9a3b7175a1ee20b48fbb617845da3bf0e57958c00b054859ee4e"},"schema_version":"1.0","source":{"id":"1104.1566","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.1566","created_at":"2026-05-18T02:02:36Z"},{"alias_kind":"arxiv_version","alias_value":"1104.1566v2","created_at":"2026-05-18T02:02:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.1566","created_at":"2026-05-18T02:02:36Z"},{"alias_kind":"pith_short_12","alias_value":"UV7S7ZWVK23V","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UV7S7ZWVK23VDDFR","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UV7S7ZWV","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:8aae7f74965196951f75b7cb1f2ae98599e45da7a3bd8fe84a70b49cb98f0aab","target":"graph","created_at":"2026-05-18T02:02:36Z","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 the high resolution cosmological N-body simulations from the Aquarius project to investigate in detail the mechanisms that determine the shape of Milky Way-type dark matter haloes. We find that, when measured at the instantaneous virial radius, the shape of individual haloes changes with time, evolving from a typically prolate configuration at early stages to a more triaxial/oblate geometry at the present day. This evolution in halo shape correlates well with the distribution of the infalling material: prolate configurations arise when haloes are fed through narrow filaments, which char","authors_text":"Amina Helmi, Carlos A. Vera-Ciro, Carlos S. Frenk, Julio F. Navarro, Laura V. Sales, Mark Vogelsberger, Simon D.M. White, Volker Springel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-08T13:02:27Z","title":"The Shape of Dark Matter Haloes in the Aquarius Simulations: Evolution and Memory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.1566","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:ffcb7244a87850febe7048bc116d7885c2c4110c45079dd4129c52701354121a","target":"record","created_at":"2026-05-18T02:02:36Z","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":"58da06046df21dc2397f535b46258097fb6190d47d7e093bee376b1d5996499f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-08T13:02:27Z","title_canon_sha256":"e77dd5de190c9a3b7175a1ee20b48fbb617845da3bf0e57958c00b054859ee4e"},"schema_version":"1.0","source":{"id":"1104.1566","kind":"arxiv","version":2}},"canonical_sha256":"a57f2fe6d556b7518cb1e723302f874b1183801ff49e7ea307cd17b2bc009363","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a57f2fe6d556b7518cb1e723302f874b1183801ff49e7ea307cd17b2bc009363","first_computed_at":"2026-05-18T02:02:36.323331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:36.323331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LQZevbFYZJYG4zqYHOvxTUjRMAYoMMGH3lRdHlWlztTLcs9i2oPOC++hG+L2g6M+2rgIbuhqj6tzklut9u0FBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:36.324159Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.1566","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffcb7244a87850febe7048bc116d7885c2c4110c45079dd4129c52701354121a","sha256:8aae7f74965196951f75b7cb1f2ae98599e45da7a3bd8fe84a70b49cb98f0aab"],"state_sha256":"aec73759ed2ef34a3b005966ead7f379dc3d3bc228f3661882ac9ff740b36460"}