{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:IUBMRSI5EMMQAYNYP6TWNU2IQV","short_pith_number":"pith:IUBMRSI5","canonical_record":{"source":{"id":"cond-mat/0309517","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.soft","submitted_at":"2003-09-23T18:49:12Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"4f1de4c8da4a022503484d40849e6692dd2b0fac3681a184b233bc004080c16e","abstract_canon_sha256":"1282f6b659c897084c67dcdbe1e9d6d487d4da6c4f4ddf527a011cedf05cc8fb"},"schema_version":"1.0"},"canonical_sha256":"4502c8c91d23190061b87fa766d3488542b27db533c4794ea9c1388f5ed9f07a","source":{"kind":"arxiv","id":"cond-mat/0309517","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0309517","created_at":"2026-05-18T01:39:59Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0309517v1","created_at":"2026-05-18T01:39:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0309517","created_at":"2026-05-18T01:39:59Z"},{"alias_kind":"pith_short_12","alias_value":"IUBMRSI5EMMQ","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"IUBMRSI5EMMQAYNY","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"IUBMRSI5","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:IUBMRSI5EMMQAYNYP6TWNU2IQV","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0309517","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.soft","submitted_at":"2003-09-23T18:49:12Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"4f1de4c8da4a022503484d40849e6692dd2b0fac3681a184b233bc004080c16e","abstract_canon_sha256":"1282f6b659c897084c67dcdbe1e9d6d487d4da6c4f4ddf527a011cedf05cc8fb"},"schema_version":"1.0"},"canonical_sha256":"4502c8c91d23190061b87fa766d3488542b27db533c4794ea9c1388f5ed9f07a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:59.160918Z","signature_b64":"gAzFmUoV38eGFDVUHlzUU3Mzz5iM+amEVxheQBYjh7vto4qGhgi6joCd12EzAvbiVljugaOVUXT0htHDgCN+Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4502c8c91d23190061b87fa766d3488542b27db533c4794ea9c1388f5ed9f07a","last_reissued_at":"2026-05-18T01:39:59.160323Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:59.160323Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0309517","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:39:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mUK2RoYDaaPhP1bB+1qepRldnjRyTsrj+mBXn/tj4l/TMr1UoaPbhg2kqvZnNm2HmDSnywDKW+b6nC1VEJZvAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T22:56:22.969495Z"},"content_sha256":"d3a7d9ec3f6782ff2add38993db289065dce550e05a05beb4fa851ec62fdebe6","schema_version":"1.0","event_id":"sha256:d3a7d9ec3f6782ff2add38993db289065dce550e05a05beb4fa851ec62fdebe6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:IUBMRSI5EMMQAYNYP6TWNU2IQV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase separation of incompressible binary fluids with Lattice Boltzmann Methods","license":"","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.soft","authors_text":"Aiguo Xu, A. Lamura, G. Gonnella","submitted_at":"2003-09-23T18:49:12Z","abstract_excerpt":"We introduce new versions of lattice Boltzmann methods (LBM) for incompressible binary mixtures where fluctuations of total density are inhibited. As a test for the improved algorithms we consider the problem of phase separation of two-dimensional binary mixtures quenched from a disordered state into the coexistence region. We find that the stability properties of LBM are greatly improved. The control of density fluctuations and the possibility of running longer simulations allow a more precise evaluation of the growth exponent."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0309517","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:39:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kRyisl793FuRXzjKRhB9cpjtbx170c7x/YE8J5LQjdQcNflryuDV/RC6uCb+SNAKqFAS5RtZagZR2Oq8NTzcDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T22:56:22.970248Z"},"content_sha256":"d2e81e8c33af23de608b6ffcc67830c32ce890062b0a9afb0a1fc26912615d22","schema_version":"1.0","event_id":"sha256:d2e81e8c33af23de608b6ffcc67830c32ce890062b0a9afb0a1fc26912615d22"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IUBMRSI5EMMQAYNYP6TWNU2IQV/bundle.json","state_url":"https://pith.science/pith/IUBMRSI5EMMQAYNYP6TWNU2IQV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IUBMRSI5EMMQAYNYP6TWNU2IQV/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-05T22:56:22Z","links":{"resolver":"https://pith.science/pith/IUBMRSI5EMMQAYNYP6TWNU2IQV","bundle":"https://pith.science/pith/IUBMRSI5EMMQAYNYP6TWNU2IQV/bundle.json","state":"https://pith.science/pith/IUBMRSI5EMMQAYNYP6TWNU2IQV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IUBMRSI5EMMQAYNYP6TWNU2IQV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:IUBMRSI5EMMQAYNYP6TWNU2IQV","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":"1282f6b659c897084c67dcdbe1e9d6d487d4da6c4f4ddf527a011cedf05cc8fb","cross_cats_sorted":["cond-mat.stat-mech"],"license":"","primary_cat":"cond-mat.soft","submitted_at":"2003-09-23T18:49:12Z","title_canon_sha256":"4f1de4c8da4a022503484d40849e6692dd2b0fac3681a184b233bc004080c16e"},"schema_version":"1.0","source":{"id":"cond-mat/0309517","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0309517","created_at":"2026-05-18T01:39:59Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0309517v1","created_at":"2026-05-18T01:39:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0309517","created_at":"2026-05-18T01:39:59Z"},{"alias_kind":"pith_short_12","alias_value":"IUBMRSI5EMMQ","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"IUBMRSI5EMMQAYNY","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"IUBMRSI5","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:d2e81e8c33af23de608b6ffcc67830c32ce890062b0a9afb0a1fc26912615d22","target":"graph","created_at":"2026-05-18T01:39:59Z","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 introduce new versions of lattice Boltzmann methods (LBM) for incompressible binary mixtures where fluctuations of total density are inhibited. As a test for the improved algorithms we consider the problem of phase separation of two-dimensional binary mixtures quenched from a disordered state into the coexistence region. We find that the stability properties of LBM are greatly improved. The control of density fluctuations and the possibility of running longer simulations allow a more precise evaluation of the growth exponent.","authors_text":"Aiguo Xu, A. Lamura, G. Gonnella","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"","primary_cat":"cond-mat.soft","submitted_at":"2003-09-23T18:49:12Z","title":"Phase separation of incompressible binary fluids with Lattice Boltzmann Methods"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0309517","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:d3a7d9ec3f6782ff2add38993db289065dce550e05a05beb4fa851ec62fdebe6","target":"record","created_at":"2026-05-18T01:39:59Z","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":"1282f6b659c897084c67dcdbe1e9d6d487d4da6c4f4ddf527a011cedf05cc8fb","cross_cats_sorted":["cond-mat.stat-mech"],"license":"","primary_cat":"cond-mat.soft","submitted_at":"2003-09-23T18:49:12Z","title_canon_sha256":"4f1de4c8da4a022503484d40849e6692dd2b0fac3681a184b233bc004080c16e"},"schema_version":"1.0","source":{"id":"cond-mat/0309517","kind":"arxiv","version":1}},"canonical_sha256":"4502c8c91d23190061b87fa766d3488542b27db533c4794ea9c1388f5ed9f07a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4502c8c91d23190061b87fa766d3488542b27db533c4794ea9c1388f5ed9f07a","first_computed_at":"2026-05-18T01:39:59.160323Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:59.160323Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gAzFmUoV38eGFDVUHlzUU3Mzz5iM+amEVxheQBYjh7vto4qGhgi6joCd12EzAvbiVljugaOVUXT0htHDgCN+Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:59.160918Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0309517","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3a7d9ec3f6782ff2add38993db289065dce550e05a05beb4fa851ec62fdebe6","sha256:d2e81e8c33af23de608b6ffcc67830c32ce890062b0a9afb0a1fc26912615d22"],"state_sha256":"75606a09d0dfb110795a2a929b791de7c5f8a12240b8fec5b61caf421708522e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c5a5MqYNOHZfEjtc4q53p8hmRI1nzFjgZDpqRitQm7pzQumUz0Nv8RgN3ENt4dnxC7AOGbEp+wsySlaLDiiZBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T22:56:22.974327Z","bundle_sha256":"660ffeb0a7efaf4918d1f31dd9f7e30ce1884f57279a6d0617a25f5ba2cedc21"}}