{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:FBJH3EIIVHI4CH3JOJZTYYBTAO","short_pith_number":"pith:FBJH3EII","canonical_record":{"source":{"id":"1508.00913","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-08-04T20:27:23Z","cross_cats_sorted":[],"title_canon_sha256":"2f884be5bc5c9a674022584a8ba848f30c45565a9a1b4e6c442163a54dfbfaf2","abstract_canon_sha256":"ecffd002310849f99faedc202c1463d12be046865d7b74d9d4ecaa149dbaf6d3"},"schema_version":"1.0"},"canonical_sha256":"28527d9108a9d1c11f6972733c603303a2858c6085f700ab5e2cb4a68f09f15a","source":{"kind":"arxiv","id":"1508.00913","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.00913","created_at":"2026-05-18T01:35:52Z"},{"alias_kind":"arxiv_version","alias_value":"1508.00913v1","created_at":"2026-05-18T01:35:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.00913","created_at":"2026-05-18T01:35:52Z"},{"alias_kind":"pith_short_12","alias_value":"FBJH3EIIVHI4","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FBJH3EIIVHI4CH3J","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FBJH3EII","created_at":"2026-05-18T12:29:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:FBJH3EIIVHI4CH3JOJZTYYBTAO","target":"record","payload":{"canonical_record":{"source":{"id":"1508.00913","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-08-04T20:27:23Z","cross_cats_sorted":[],"title_canon_sha256":"2f884be5bc5c9a674022584a8ba848f30c45565a9a1b4e6c442163a54dfbfaf2","abstract_canon_sha256":"ecffd002310849f99faedc202c1463d12be046865d7b74d9d4ecaa149dbaf6d3"},"schema_version":"1.0"},"canonical_sha256":"28527d9108a9d1c11f6972733c603303a2858c6085f700ab5e2cb4a68f09f15a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:52.742201Z","signature_b64":"I1CD50zlILYag1+ygau/Fst90OA4QiG0Et9/4utqnJFrfTVyEAsiCttHe8n1mgrXctrJGXc+Fiy3xpqhnqL5Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28527d9108a9d1c11f6972733c603303a2858c6085f700ab5e2cb4a68f09f15a","last_reissued_at":"2026-05-18T01:35:52.741460Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:52.741460Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.00913","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":"2026-05-18T01:35:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6QQWqfZmF07JI+kIt03vJGIm7hXPWGCXmBkFpHFRM8keolH0ym5yPkfTN4WPse9gVQXOLQRzwkBC8jXAsMGWBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T16:58:07.276280Z"},"content_sha256":"401bdd391ba97a98a3ace1fb1a18d0ad2b5f459881cb841f3489e7aa20e88d91","schema_version":"1.0","event_id":"sha256:401bdd391ba97a98a3ace1fb1a18d0ad2b5f459881cb841f3489e7aa20e88d91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:FBJH3EIIVHI4CH3JOJZTYYBTAO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interface dynamics of immiscible two-phase lattice-gas cellular automata: A model with random dynamic scatterers and quenched disorder in two dimensions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"M. D. Coutinho-Filho, R. M. Azevedo, R. R. Montenegro-Filho","submitted_at":"2015-08-04T20:27:23Z","abstract_excerpt":"We use a lattice gas cellular automata model in the presence of random dynamic scattering sites and quenched disorder in the two-phase immiscible model with the aim of producing an interface dynamics similar to that observed in Hele-Shaw cells. The dynamics of the interface is studied as one fluid displaces the other in a clean lattice and in a lattice with quenched disorder. For the clean system, if the fluid with a lower viscosity displaces the other, we show that the model exhibits the Saffman-Taylor instability phenomenon, whose features are in very good agreement with those observed in re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.00913","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":"2026-05-18T01:35:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cJWv6a1HfRP3P85OJXRpenI7EZxfk3I/vGnDnEo78K7xTYTiOVAnWtKkyNffaMGaDaqS6NItGf4wygLemrJjAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T16:58:07.276648Z"},"content_sha256":"eb04f77173d3d4409989eff6be3497e02f87fed34bc7e9676d2ebadb7a04878a","schema_version":"1.0","event_id":"sha256:eb04f77173d3d4409989eff6be3497e02f87fed34bc7e9676d2ebadb7a04878a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FBJH3EIIVHI4CH3JOJZTYYBTAO/bundle.json","state_url":"https://pith.science/pith/FBJH3EIIVHI4CH3JOJZTYYBTAO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FBJH3EIIVHI4CH3JOJZTYYBTAO/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":"2026-06-24T16:58:07Z","links":{"resolver":"https://pith.science/pith/FBJH3EIIVHI4CH3JOJZTYYBTAO","bundle":"https://pith.science/pith/FBJH3EIIVHI4CH3JOJZTYYBTAO/bundle.json","state":"https://pith.science/pith/FBJH3EIIVHI4CH3JOJZTYYBTAO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FBJH3EIIVHI4CH3JOJZTYYBTAO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FBJH3EIIVHI4CH3JOJZTYYBTAO","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":"ecffd002310849f99faedc202c1463d12be046865d7b74d9d4ecaa149dbaf6d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-08-04T20:27:23Z","title_canon_sha256":"2f884be5bc5c9a674022584a8ba848f30c45565a9a1b4e6c442163a54dfbfaf2"},"schema_version":"1.0","source":{"id":"1508.00913","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.00913","created_at":"2026-05-18T01:35:52Z"},{"alias_kind":"arxiv_version","alias_value":"1508.00913v1","created_at":"2026-05-18T01:35:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.00913","created_at":"2026-05-18T01:35:52Z"},{"alias_kind":"pith_short_12","alias_value":"FBJH3EIIVHI4","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FBJH3EIIVHI4CH3J","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FBJH3EII","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:eb04f77173d3d4409989eff6be3497e02f87fed34bc7e9676d2ebadb7a04878a","target":"graph","created_at":"2026-05-18T01:35:52Z","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 a lattice gas cellular automata model in the presence of random dynamic scattering sites and quenched disorder in the two-phase immiscible model with the aim of producing an interface dynamics similar to that observed in Hele-Shaw cells. The dynamics of the interface is studied as one fluid displaces the other in a clean lattice and in a lattice with quenched disorder. For the clean system, if the fluid with a lower viscosity displaces the other, we show that the model exhibits the Saffman-Taylor instability phenomenon, whose features are in very good agreement with those observed in re","authors_text":"M. D. Coutinho-Filho, R. M. Azevedo, R. R. Montenegro-Filho","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-08-04T20:27:23Z","title":"Interface dynamics of immiscible two-phase lattice-gas cellular automata: A model with random dynamic scatterers and quenched disorder in two dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.00913","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":"sha256:401bdd391ba97a98a3ace1fb1a18d0ad2b5f459881cb841f3489e7aa20e88d91","target":"record","created_at":"2026-05-18T01:35:52Z","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":"ecffd002310849f99faedc202c1463d12be046865d7b74d9d4ecaa149dbaf6d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-08-04T20:27:23Z","title_canon_sha256":"2f884be5bc5c9a674022584a8ba848f30c45565a9a1b4e6c442163a54dfbfaf2"},"schema_version":"1.0","source":{"id":"1508.00913","kind":"arxiv","version":1}},"canonical_sha256":"28527d9108a9d1c11f6972733c603303a2858c6085f700ab5e2cb4a68f09f15a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28527d9108a9d1c11f6972733c603303a2858c6085f700ab5e2cb4a68f09f15a","first_computed_at":"2026-05-18T01:35:52.741460Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:52.741460Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I1CD50zlILYag1+ygau/Fst90OA4QiG0Et9/4utqnJFrfTVyEAsiCttHe8n1mgrXctrJGXc+Fiy3xpqhnqL5Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:52.742201Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.00913","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:401bdd391ba97a98a3ace1fb1a18d0ad2b5f459881cb841f3489e7aa20e88d91","sha256:eb04f77173d3d4409989eff6be3497e02f87fed34bc7e9676d2ebadb7a04878a"],"state_sha256":"0be09786921329adc0854b0fd09fe9d060d6c5ed7152522ff12ce9dbd55734a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6gUskmk3eyaozFgcaTPIhUG4gViZuWVSLGnT6GOgUtIfFyU5i7vu8S/Z9G/yZOImGTtKtqJ55yCI7Sgajfh5DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T16:58:07.278566Z","bundle_sha256":"83e49a7a8bb6de08f93eda80f8d1779c194422917bcac65c67d2fcce66ef29ee"}}