{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:E6F736JQQZIF2K5POTFNAFPMP7","short_pith_number":"pith:E6F736JQ","schema_version":"1.0","canonical_sha256":"278bfdf93086505d2baf74cad015ec7fc6853c8d7caf11069b5b8c62d3d69f07","source":{"kind":"arxiv","id":"2109.12241","version":1},"attestation_state":"computed","paper":{"title":"Onset of transient convection in a porous medium with an embedded low-permeability layer","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"(2) School of Mathematical Sciences, Australia), Complex Systems Research Centre, Coventry University, Emmanuel E. Luther (1), Michael C. Dallaston (2) ((1) Fluid, Queensland University of Technology, Ran Holtzman (1), Seyed M. Shariatipour (1), United Kingdom","submitted_at":"2021-09-25T00:05:58Z","abstract_excerpt":"Deep saline aquifers used for CO$_2$ sequestration are commonly made of sedimentary formations consisting of several layers of distinguishable permeability. In this work, the effect of a non-monotonic, vertically varying permeability profile on the onset of convective instability is studied theoretically using linear stability analyses. The onset time depends on the interaction between the permeability profile and the location of the concentration perturbation peak beyond which the concentration of CO$_2$ decays. A thin low-permeability layer can either accelerate or delay the onset time of th"},"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":"2109.12241","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2021-09-25T00:05:58Z","cross_cats_sorted":[],"title_canon_sha256":"64fb06440ae29c0eb4b3f29e1f90e78b4ac0dc263ea0c94687845529c72e8f08","abstract_canon_sha256":"8dc48c3ef3395addcb287e1fcbfc304b938d06bea508036ef212c4432e5dd8e2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:17:18.063151Z","signature_b64":"tPdkHdWGtN5/NFVok6kpU7XO85pvFlBbYNwZAdDr9ouU217L/8G/BFejp6wsCnQs7CUy7nhJU+v9mCMjpy08BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"278bfdf93086505d2baf74cad015ec7fc6853c8d7caf11069b5b8c62d3d69f07","last_reissued_at":"2026-07-05T03:17:18.062648Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:17:18.062648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Onset of transient convection in a porous medium with an embedded low-permeability layer","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"(2) School of Mathematical Sciences, Australia), Complex Systems Research Centre, Coventry University, Emmanuel E. Luther (1), Michael C. Dallaston (2) ((1) Fluid, Queensland University of Technology, Ran Holtzman (1), Seyed M. Shariatipour (1), United Kingdom","submitted_at":"2021-09-25T00:05:58Z","abstract_excerpt":"Deep saline aquifers used for CO$_2$ sequestration are commonly made of sedimentary formations consisting of several layers of distinguishable permeability. In this work, the effect of a non-monotonic, vertically varying permeability profile on the onset of convective instability is studied theoretically using linear stability analyses. The onset time depends on the interaction between the permeability profile and the location of the concentration perturbation peak beyond which the concentration of CO$_2$ decays. A thin low-permeability layer can either accelerate or delay the onset time of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.12241","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2109.12241/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":"2109.12241","created_at":"2026-07-05T03:17:18.062705+00:00"},{"alias_kind":"arxiv_version","alias_value":"2109.12241v1","created_at":"2026-07-05T03:17:18.062705+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.12241","created_at":"2026-07-05T03:17:18.062705+00:00"},{"alias_kind":"pith_short_12","alias_value":"E6F736JQQZIF","created_at":"2026-07-05T03:17:18.062705+00:00"},{"alias_kind":"pith_short_16","alias_value":"E6F736JQQZIF2K5P","created_at":"2026-07-05T03:17:18.062705+00:00"},{"alias_kind":"pith_short_8","alias_value":"E6F736JQ","created_at":"2026-07-05T03:17:18.062705+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/E6F736JQQZIF2K5POTFNAFPMP7","json":"https://pith.science/pith/E6F736JQQZIF2K5POTFNAFPMP7.json","graph_json":"https://pith.science/api/pith-number/E6F736JQQZIF2K5POTFNAFPMP7/graph.json","events_json":"https://pith.science/api/pith-number/E6F736JQQZIF2K5POTFNAFPMP7/events.json","paper":"https://pith.science/paper/E6F736JQ"},"agent_actions":{"view_html":"https://pith.science/pith/E6F736JQQZIF2K5POTFNAFPMP7","download_json":"https://pith.science/pith/E6F736JQQZIF2K5POTFNAFPMP7.json","view_paper":"https://pith.science/paper/E6F736JQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2109.12241&json=true","fetch_graph":"https://pith.science/api/pith-number/E6F736JQQZIF2K5POTFNAFPMP7/graph.json","fetch_events":"https://pith.science/api/pith-number/E6F736JQQZIF2K5POTFNAFPMP7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/E6F736JQQZIF2K5POTFNAFPMP7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/E6F736JQQZIF2K5POTFNAFPMP7/action/storage_attestation","attest_author":"https://pith.science/pith/E6F736JQQZIF2K5POTFNAFPMP7/action/author_attestation","sign_citation":"https://pith.science/pith/E6F736JQQZIF2K5POTFNAFPMP7/action/citation_signature","submit_replication":"https://pith.science/pith/E6F736JQQZIF2K5POTFNAFPMP7/action/replication_record"}},"created_at":"2026-07-05T03:17:18.062705+00:00","updated_at":"2026-07-05T03:17:18.062705+00:00"}