{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:EUQNDEXJR5HNPETMCXEK4FFKDK","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":"4faba1f7e3adc13a340905903d2933a3e961c5486beb31dcf90dade70a2119dc","cross_cats_sorted":["physics.chem-ph","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-07-25T23:01:26Z","title_canon_sha256":"bfb1884ba9e60dd551719710d03291024138b105ac63529d5f9329e985826a96"},"schema_version":"1.0","source":{"id":"1807.09896","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.09896","created_at":"2026-05-18T00:09:46Z"},{"alias_kind":"arxiv_version","alias_value":"1807.09896v1","created_at":"2026-05-18T00:09:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.09896","created_at":"2026-05-18T00:09:46Z"},{"alias_kind":"pith_short_12","alias_value":"EUQNDEXJR5HN","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"EUQNDEXJR5HNPETM","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"EUQNDEXJ","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:9091165a42c3bcbbe71c189864f5f3e1700d2f1bab83c80b9b7e6c6c763af29c","target":"graph","created_at":"2026-05-18T00:09:46Z","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":"Dissipative particle dynamics (DPD) is an effective mesoscopic particle model with a lower computational cost than molecular dynamics because of the soft potentials that it employs. However, the soft potential is not strong enough to prevent the DPD particles that are used to represent the fluid from penetrating solid boundaries represented by stationary DPD particles. A phase field variable, , is used to indicate the phase at point and time t, with a smooth transition from -1 (phase 1) to +1 (phase 2) across the interface. We describe an efficient implementation of no-slip boundary conditions","authors_text":"Paul Meakin, Zhijie Xu","cross_cats":["physics.chem-ph","physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-07-25T23:01:26Z","title":"A phase field approach to no slip boundary conditions in dissipative particle dynamics and other particle models for fluid flow in geometrically complex confined systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.09896","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":"sha256:273e1daa54915abfbf195f39671f76a6703657b7d768b3d81f7e2857d386d7ec","target":"record","created_at":"2026-05-18T00:09:46Z","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":"4faba1f7e3adc13a340905903d2933a3e961c5486beb31dcf90dade70a2119dc","cross_cats_sorted":["physics.chem-ph","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-07-25T23:01:26Z","title_canon_sha256":"bfb1884ba9e60dd551719710d03291024138b105ac63529d5f9329e985826a96"},"schema_version":"1.0","source":{"id":"1807.09896","kind":"arxiv","version":1}},"canonical_sha256":"2520d192e98f4ed7926c15c8ae14aa1a8cd26df88207c0fc5dfa8aa5247d8c73","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2520d192e98f4ed7926c15c8ae14aa1a8cd26df88207c0fc5dfa8aa5247d8c73","first_computed_at":"2026-05-18T00:09:46.216599Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:46.216599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/+dd2hi/lAGPKVn447sC0lr8k9KeVyXbRtNoUNvPPSR+4F+rPwmMxjZ1n69ePWnUXduwkuIJmj663dXAJF+WCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:46.217428Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.09896","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:273e1daa54915abfbf195f39671f76a6703657b7d768b3d81f7e2857d386d7ec","sha256:9091165a42c3bcbbe71c189864f5f3e1700d2f1bab83c80b9b7e6c6c763af29c"],"state_sha256":"1611842e68755a234411a4cbd6eb8c4a1ba08ce019be87785a257279cf5e7c9b"}