{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:64R55O5PJ7X3GBQ74TVBBMIO2S","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":"af9a14a6b2e975ff10d55f6fa7ec096ee067e949c90f586800c90b3a3fd5263d","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-02-02T14:28:14Z","title_canon_sha256":"f61c12982705f97aa51723df9c2c64198ac834f4c56977696ad399fc9143fed6"},"schema_version":"1.0","source":{"id":"1202.0442","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.0442","created_at":"2026-05-18T03:00:27Z"},{"alias_kind":"arxiv_version","alias_value":"1202.0442v2","created_at":"2026-05-18T03:00:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.0442","created_at":"2026-05-18T03:00:27Z"},{"alias_kind":"pith_short_12","alias_value":"64R55O5PJ7X3","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"64R55O5PJ7X3GBQ7","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"64R55O5P","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:7ad991e9ca5b46849fabca3084dd28fca66394aee28ac83e8e0dd1dbb859da5d","target":"graph","created_at":"2026-05-18T03:00:27Z","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":"The Lattice Boltzmann method has been gaining acceptance for hydrodynamic problems involving complex boundaries, non-equilibrium dynamics and interfacial phenomena in multiphase or multicomponent systems. lb2d.pm is a Perl module offering a clear framework for simple Lattice Boltzmann simulations in 2D. The syntax and some basic applications are presented. Mainly, the new version 0.1 enables solute transport and accounts for reactive boundaries leading to surface growth.","authors_text":"Danilo Sergi","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-02-02T14:28:14Z","title":"Introduction to Perl module lb2d.pm 0.1 for basic Lattice Boltzmann simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.0442","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":"sha256:6612bba1cdd0f5f5e2e7d8dd57e03e29fb732bbc7a8ccb60eae0deec9c721c76","target":"record","created_at":"2026-05-18T03:00:27Z","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":"af9a14a6b2e975ff10d55f6fa7ec096ee067e949c90f586800c90b3a3fd5263d","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-02-02T14:28:14Z","title_canon_sha256":"f61c12982705f97aa51723df9c2c64198ac834f4c56977696ad399fc9143fed6"},"schema_version":"1.0","source":{"id":"1202.0442","kind":"arxiv","version":2}},"canonical_sha256":"f723debbaf4fefb3061fe4ea10b10ed4b39ee3e1d9ae5d88c4bc9fd27063f6e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f723debbaf4fefb3061fe4ea10b10ed4b39ee3e1d9ae5d88c4bc9fd27063f6e5","first_computed_at":"2026-05-18T03:00:27.121436Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:00:27.121436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Jalj2q8G26jqoOsAon0SGiCCYZ9GS3G+SeOSnW1dQDWOOkr8AGVDfGrgIiWVbM8m68IOKxxiLctp+2e/hGEkCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:00:27.122183Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.0442","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6612bba1cdd0f5f5e2e7d8dd57e03e29fb732bbc7a8ccb60eae0deec9c721c76","sha256:7ad991e9ca5b46849fabca3084dd28fca66394aee28ac83e8e0dd1dbb859da5d"],"state_sha256":"c3c6e7cc1d5f7996f8e77530bf44581f12a0f03227c26d6e354ddef3992b3e86"}