{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:UC5JMXA6CWH6Q67VGF6V5S3VXE","short_pith_number":"pith:UC5JMXA6","canonical_record":{"source":{"id":"1901.00835","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-03T18:16:01Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"eb92d62fa55169fa268a0ca97aed826d3682b7b207c63d2279ad527ede5255d1","abstract_canon_sha256":"ffac8e45c539a44ea66516f9a7a41e7cef05875825f429663724ba1a61ebf45e"},"schema_version":"1.0"},"canonical_sha256":"a0ba965c1e158fe87bf5317d5ecb75b92da5c8279466a585b140f143a751eed5","source":{"kind":"arxiv","id":"1901.00835","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.00835","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"arxiv_version","alias_value":"1901.00835v2","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.00835","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"pith_short_12","alias_value":"UC5JMXA6CWH6","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UC5JMXA6CWH6Q67V","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UC5JMXA6","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:UC5JMXA6CWH6Q67VGF6V5S3VXE","target":"record","payload":{"canonical_record":{"source":{"id":"1901.00835","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-03T18:16:01Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"eb92d62fa55169fa268a0ca97aed826d3682b7b207c63d2279ad527ede5255d1","abstract_canon_sha256":"ffac8e45c539a44ea66516f9a7a41e7cef05875825f429663724ba1a61ebf45e"},"schema_version":"1.0"},"canonical_sha256":"a0ba965c1e158fe87bf5317d5ecb75b92da5c8279466a585b140f143a751eed5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:31.216729Z","signature_b64":"f//Tl+Wc9f7C667y1tN0H76WWMIYQfB5xquwmelmwqlvY+ivLXl39zguGKoZHwyPN5MB30NExNPOuyBAwhhQCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a0ba965c1e158fe87bf5317d5ecb75b92da5c8279466a585b140f143a751eed5","last_reissued_at":"2026-05-17T23:45:31.216130Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:31.216130Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.00835","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:45:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LLNFhj7PSx85D7FfDFZ/71LwXXQoMiQ2bT4XRZaWte3EMt5LqyGzTz8agHRpYCaDohNg2WyNnfAQ4RTteXJPDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:48:37.225387Z"},"content_sha256":"613af933ac21685ea33f7484529e3b74c3bf404e5d955a68ea4f062f19afb861","schema_version":"1.0","event_id":"sha256:613af933ac21685ea33f7484529e3b74c3bf404e5d955a68ea4f062f19afb861"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:UC5JMXA6CWH6Q67VGF6V5S3VXE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Immiscible fluid displacement in porous media with spatially correlated particle sizes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"physics.flu-dyn","authors_text":"Enrico Segre, Lucas Goehring, Oshri Borgman, Ran Holtzman, Thomas Darwent","submitted_at":"2019-01-03T18:16:01Z","abstract_excerpt":"Immiscible fluid displacement in porous media is fundamental for many environmental processes, including infiltration of water in soils, groundwater remediation, enhanced recovery of hydrocarbons and carbon geosequestration. Microstructural heterogeneity, in particular of particle sizes, can significantly impact immiscible displacement. For instance, it may lead to unstable flow and preferential displacement patterns. We present a systematic, quantitative pore-scale study of the impact of spatial correlations in particle sizes on the drainage of a partially-wetting fluid. We perform pore-netwo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.00835","kind":"arxiv","version":2},"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":"2026-05-17T23:45:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xrb6Pp6bc9w63c4U46KipTbj2AnWe8LICV+MwKTYQJ78ITxvcPqQ5RtsIr0iKRZqZIrSyqWSVRzEg0zc74Z9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:48:37.226106Z"},"content_sha256":"055e19b30a909be21fae7e2a5c2f2def6080634777f69492038b7554ed21a04a","schema_version":"1.0","event_id":"sha256:055e19b30a909be21fae7e2a5c2f2def6080634777f69492038b7554ed21a04a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UC5JMXA6CWH6Q67VGF6V5S3VXE/bundle.json","state_url":"https://pith.science/pith/UC5JMXA6CWH6Q67VGF6V5S3VXE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UC5JMXA6CWH6Q67VGF6V5S3VXE/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":"2026-05-29T17:48:37Z","links":{"resolver":"https://pith.science/pith/UC5JMXA6CWH6Q67VGF6V5S3VXE","bundle":"https://pith.science/pith/UC5JMXA6CWH6Q67VGF6V5S3VXE/bundle.json","state":"https://pith.science/pith/UC5JMXA6CWH6Q67VGF6V5S3VXE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UC5JMXA6CWH6Q67VGF6V5S3VXE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UC5JMXA6CWH6Q67VGF6V5S3VXE","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":"ffac8e45c539a44ea66516f9a7a41e7cef05875825f429663724ba1a61ebf45e","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-03T18:16:01Z","title_canon_sha256":"eb92d62fa55169fa268a0ca97aed826d3682b7b207c63d2279ad527ede5255d1"},"schema_version":"1.0","source":{"id":"1901.00835","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.00835","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"arxiv_version","alias_value":"1901.00835v2","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.00835","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"pith_short_12","alias_value":"UC5JMXA6CWH6","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UC5JMXA6CWH6Q67V","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UC5JMXA6","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:055e19b30a909be21fae7e2a5c2f2def6080634777f69492038b7554ed21a04a","target":"graph","created_at":"2026-05-17T23:45:31Z","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":"Immiscible fluid displacement in porous media is fundamental for many environmental processes, including infiltration of water in soils, groundwater remediation, enhanced recovery of hydrocarbons and carbon geosequestration. Microstructural heterogeneity, in particular of particle sizes, can significantly impact immiscible displacement. For instance, it may lead to unstable flow and preferential displacement patterns. We present a systematic, quantitative pore-scale study of the impact of spatial correlations in particle sizes on the drainage of a partially-wetting fluid. We perform pore-netwo","authors_text":"Enrico Segre, Lucas Goehring, Oshri Borgman, Ran Holtzman, Thomas Darwent","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-03T18:16:01Z","title":"Immiscible fluid displacement in porous media with spatially correlated particle sizes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.00835","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":"sha256:613af933ac21685ea33f7484529e3b74c3bf404e5d955a68ea4f062f19afb861","target":"record","created_at":"2026-05-17T23:45:31Z","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":"ffac8e45c539a44ea66516f9a7a41e7cef05875825f429663724ba1a61ebf45e","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-03T18:16:01Z","title_canon_sha256":"eb92d62fa55169fa268a0ca97aed826d3682b7b207c63d2279ad527ede5255d1"},"schema_version":"1.0","source":{"id":"1901.00835","kind":"arxiv","version":2}},"canonical_sha256":"a0ba965c1e158fe87bf5317d5ecb75b92da5c8279466a585b140f143a751eed5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a0ba965c1e158fe87bf5317d5ecb75b92da5c8279466a585b140f143a751eed5","first_computed_at":"2026-05-17T23:45:31.216130Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:31.216130Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f//Tl+Wc9f7C667y1tN0H76WWMIYQfB5xquwmelmwqlvY+ivLXl39zguGKoZHwyPN5MB30NExNPOuyBAwhhQCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:31.216729Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.00835","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:613af933ac21685ea33f7484529e3b74c3bf404e5d955a68ea4f062f19afb861","sha256:055e19b30a909be21fae7e2a5c2f2def6080634777f69492038b7554ed21a04a"],"state_sha256":"c6400f48e72aa17585ced8f80bd15b5dc1f53ac6d679ccdb6a70f3189eead5eb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Awk/t2MLzuTteW9CxQEwL0DL1XAOg19YC+MEixSVaAz7SvX//+0BcJ1ch8veqtClRljEUtLpLRh07VG6DYAjAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T17:48:37.230345Z","bundle_sha256":"f80aa02dbff76b99f3f8cbab0036b7b6ad5ccceda70c479d87effc53549d5c1e"}}