{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VARWI32LGZSN7H6AKO2YYETES6","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":"eeaade7a4c29685ca6666b907e75e9f2e14b9471140d65592ce4ba9c8c9c6096","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-03-02T06:14:48Z","title_canon_sha256":"640ec2ca4b0fb51f947b6e34e9e312b77c37d151857d89dc2ff5959bd89364b4"},"schema_version":"1.0","source":{"id":"1803.00728","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.00728","created_at":"2026-05-18T00:11:49Z"},{"alias_kind":"arxiv_version","alias_value":"1803.00728v2","created_at":"2026-05-18T00:11:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00728","created_at":"2026-05-18T00:11:49Z"},{"alias_kind":"pith_short_12","alias_value":"VARWI32LGZSN","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VARWI32LGZSN7H6A","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VARWI32L","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:c1e89170ec84545dd6d0c2aa6348cc740826a0e2ae41b6875541f036d798fac3","target":"graph","created_at":"2026-05-18T00:11:49Z","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":"A long-standing issue in peculiar velocity cosmology is whether the halo/galaxy velocity bias $b_v=1$ at large scale. The resolution of this important issue must resort to high precision cosmological simulations. However, this is hampered by another long-standing `sampling artifact' problem in volume weighted velocity measurement. We circumvent this problem with a hybrid approach. We first measure statistics free of sampling artifact, then link them to volume weighted statistics in theory, finally solve for the velocity bias. $b_v$ determined by our method is not only free of sampling artifact","authors_text":"Junde Chen, Pengjie Zhang, Yipeng Jing, Yi Zheng, Yu Yu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-03-02T06:14:48Z","title":"Accurate determination of halo velocity bias in simulations and its cosmological implications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00728","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":"sha256:54d9c3a5d6e59f4acca7298450ef241990505e4b478c41b2ffa3f84f707b1745","target":"record","created_at":"2026-05-18T00:11:49Z","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":"eeaade7a4c29685ca6666b907e75e9f2e14b9471140d65592ce4ba9c8c9c6096","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-03-02T06:14:48Z","title_canon_sha256":"640ec2ca4b0fb51f947b6e34e9e312b77c37d151857d89dc2ff5959bd89364b4"},"schema_version":"1.0","source":{"id":"1803.00728","kind":"arxiv","version":2}},"canonical_sha256":"a823646f4b3664df9fc053b58c126497886168fd66e6292df577d90ce44d7425","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a823646f4b3664df9fc053b58c126497886168fd66e6292df577d90ce44d7425","first_computed_at":"2026-05-18T00:11:49.719349Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:49.719349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QX4vcfEw99x01+JNAfHezpKZOe50Ea2QAcdLiyiG4k5oBuv5vExxGcgzh1mACXq8qM3saxyt5M+HFKSreFaRAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:49.719946Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.00728","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54d9c3a5d6e59f4acca7298450ef241990505e4b478c41b2ffa3f84f707b1745","sha256:c1e89170ec84545dd6d0c2aa6348cc740826a0e2ae41b6875541f036d798fac3"],"state_sha256":"4d6361e84dd3762a6473f040aa7358aed14439400786653ff2838f047ccce208"}