{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:SDH4WXKKHP5ZOVUFYWSWUZ2UFO","short_pith_number":"pith:SDH4WXKK","schema_version":"1.0","canonical_sha256":"90cfcb5d4a3bfb975685c5a56a67542b809dcb658b4cd21b5c157bd1cfd5fe46","source":{"kind":"arxiv","id":"2410.18937","version":2},"attestation_state":"computed","paper":{"title":"Python workflow for segmenting multiphase flow in porous rocks","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.geo-ph","authors_text":"Catherine Spurin, Dane Sherburn, Hamdi A. Tchelepi, Sharon Ellman, Tom Bultreys","submitted_at":"2024-10-24T17:24:28Z","abstract_excerpt":"X-ray micro-computed tomography (X-ray micro-CT) is widely employed to investigate flow phenomena in porous media, providing a powerful alternative to core-scale experiments for estimating traditional petrophysical properties such as porosity, single-phase permeability or fluid connectivity. However, the segmentation process, critical for deriving these properties from greyscale images, varies significantly between studies due to the absence of a standardized workflow or any ground truth data. This introduces challenges in comparing results across different studies, especially for properties s"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2410.18937","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.geo-ph","submitted_at":"2024-10-24T17:24:28Z","cross_cats_sorted":[],"title_canon_sha256":"92973a92a592e2a9a04a7c9c0342a3ad0c85e1e6c58c2a2daa382eeb8aee4b6b","abstract_canon_sha256":"0f7d5cfb8909f755732b43ef449b5a2921a1667df4e5fc5b4abf433897df5a79"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:45:56.729956Z","signature_b64":"UlWxN4vxusqSp2g2liOF+SZ3BQjVPuFmOYJBnwDGr4kxTCfJBCKEGSshCu+QO076GDu23icjp5u5jlPoiNwiDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90cfcb5d4a3bfb975685c5a56a67542b809dcb658b4cd21b5c157bd1cfd5fe46","last_reissued_at":"2026-07-05T09:45:56.729490Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:45:56.729490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Python workflow for segmenting multiphase flow in porous rocks","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.geo-ph","authors_text":"Catherine Spurin, Dane Sherburn, Hamdi A. Tchelepi, Sharon Ellman, Tom Bultreys","submitted_at":"2024-10-24T17:24:28Z","abstract_excerpt":"X-ray micro-computed tomography (X-ray micro-CT) is widely employed to investigate flow phenomena in porous media, providing a powerful alternative to core-scale experiments for estimating traditional petrophysical properties such as porosity, single-phase permeability or fluid connectivity. However, the segmentation process, critical for deriving these properties from greyscale images, varies significantly between studies due to the absence of a standardized workflow or any ground truth data. This introduces challenges in comparing results across different studies, especially for properties s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.18937","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2410.18937/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2410.18937","created_at":"2026-07-05T09:45:56.729541+00:00"},{"alias_kind":"arxiv_version","alias_value":"2410.18937v2","created_at":"2026-07-05T09:45:56.729541+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.18937","created_at":"2026-07-05T09:45:56.729541+00:00"},{"alias_kind":"pith_short_12","alias_value":"SDH4WXKKHP5Z","created_at":"2026-07-05T09:45:56.729541+00:00"},{"alias_kind":"pith_short_16","alias_value":"SDH4WXKKHP5ZOVUF","created_at":"2026-07-05T09:45:56.729541+00:00"},{"alias_kind":"pith_short_8","alias_value":"SDH4WXKK","created_at":"2026-07-05T09:45:56.729541+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/SDH4WXKKHP5ZOVUFYWSWUZ2UFO","json":"https://pith.science/pith/SDH4WXKKHP5ZOVUFYWSWUZ2UFO.json","graph_json":"https://pith.science/api/pith-number/SDH4WXKKHP5ZOVUFYWSWUZ2UFO/graph.json","events_json":"https://pith.science/api/pith-number/SDH4WXKKHP5ZOVUFYWSWUZ2UFO/events.json","paper":"https://pith.science/paper/SDH4WXKK"},"agent_actions":{"view_html":"https://pith.science/pith/SDH4WXKKHP5ZOVUFYWSWUZ2UFO","download_json":"https://pith.science/pith/SDH4WXKKHP5ZOVUFYWSWUZ2UFO.json","view_paper":"https://pith.science/paper/SDH4WXKK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2410.18937&json=true","fetch_graph":"https://pith.science/api/pith-number/SDH4WXKKHP5ZOVUFYWSWUZ2UFO/graph.json","fetch_events":"https://pith.science/api/pith-number/SDH4WXKKHP5ZOVUFYWSWUZ2UFO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SDH4WXKKHP5ZOVUFYWSWUZ2UFO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SDH4WXKKHP5ZOVUFYWSWUZ2UFO/action/storage_attestation","attest_author":"https://pith.science/pith/SDH4WXKKHP5ZOVUFYWSWUZ2UFO/action/author_attestation","sign_citation":"https://pith.science/pith/SDH4WXKKHP5ZOVUFYWSWUZ2UFO/action/citation_signature","submit_replication":"https://pith.science/pith/SDH4WXKKHP5ZOVUFYWSWUZ2UFO/action/replication_record"}},"created_at":"2026-07-05T09:45:56.729541+00:00","updated_at":"2026-07-05T09:45:56.729541+00:00"}