{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:CMKI23MMZUC6T7MRD7HZQB3WBQ","short_pith_number":"pith:CMKI23MM","schema_version":"1.0","canonical_sha256":"13148d6d8ccd05e9fd911fcf9807760c2edde9ff812a649df6028eaeae54c00b","source":{"kind":"arxiv","id":"1709.03161","version":2},"attestation_state":"computed","paper":{"title":"Charge regulation of nonpolar colloids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"David Gillespie, James Hallett, Paul Bartlett, Robert Richardson","submitted_at":"2017-09-10T19:55:38Z","abstract_excerpt":"Individual colloids often carry a charge as a result of the dissociation (or adsorption) of weakly-ionized surface groups. The magnitude depends on the precise chemical environment surrounding a particle, which in a concentrated dispersion is a function of the colloid packing fraction $\\eta$. Theoretical studies have suggested that the effective charge $Z_{\\rm{eff}}$ in regulated systems could, in general, decrease with increasing $\\eta$. We test this hypothesis for nonpolar dispersions by determining $Z_{\\rm{eff}}(\\eta)$ over a wide range of packing fractions ($10^{-5} \\le \\eta \\le 0.3$) usin"},"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":"1709.03161","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-09-10T19:55:38Z","cross_cats_sorted":[],"title_canon_sha256":"6dc66e4de3fff454207009b00eb02cbf0531bcf1c628527e1a35e57ac4cc33eb","abstract_canon_sha256":"66deaa6224f11ac338aabf82d1080606a16b4aa0ce7a6b094aa3242bc3938858"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:22.644495Z","signature_b64":"lb+aaJaXx349PlKHNEFI7iO93/6gv7RSYEf1O1rsa1S4GE3588nJyETBKo0/XlaI/R4lkueUbV26TA2vnjtQAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"13148d6d8ccd05e9fd911fcf9807760c2edde9ff812a649df6028eaeae54c00b","last_reissued_at":"2026-05-18T00:28:22.643800Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:22.643800Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Charge regulation of nonpolar colloids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"David Gillespie, James Hallett, Paul Bartlett, Robert Richardson","submitted_at":"2017-09-10T19:55:38Z","abstract_excerpt":"Individual colloids often carry a charge as a result of the dissociation (or adsorption) of weakly-ionized surface groups. The magnitude depends on the precise chemical environment surrounding a particle, which in a concentrated dispersion is a function of the colloid packing fraction $\\eta$. Theoretical studies have suggested that the effective charge $Z_{\\rm{eff}}$ in regulated systems could, in general, decrease with increasing $\\eta$. We test this hypothesis for nonpolar dispersions by determining $Z_{\\rm{eff}}(\\eta)$ over a wide range of packing fractions ($10^{-5} \\le \\eta \\le 0.3$) usin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.03161","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1709.03161","created_at":"2026-05-18T00:28:22.643901+00:00"},{"alias_kind":"arxiv_version","alias_value":"1709.03161v2","created_at":"2026-05-18T00:28:22.643901+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.03161","created_at":"2026-05-18T00:28:22.643901+00:00"},{"alias_kind":"pith_short_12","alias_value":"CMKI23MMZUC6","created_at":"2026-05-18T12:31:10.602751+00:00"},{"alias_kind":"pith_short_16","alias_value":"CMKI23MMZUC6T7MR","created_at":"2026-05-18T12:31:10.602751+00:00"},{"alias_kind":"pith_short_8","alias_value":"CMKI23MM","created_at":"2026-05-18T12:31:10.602751+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/CMKI23MMZUC6T7MRD7HZQB3WBQ","json":"https://pith.science/pith/CMKI23MMZUC6T7MRD7HZQB3WBQ.json","graph_json":"https://pith.science/api/pith-number/CMKI23MMZUC6T7MRD7HZQB3WBQ/graph.json","events_json":"https://pith.science/api/pith-number/CMKI23MMZUC6T7MRD7HZQB3WBQ/events.json","paper":"https://pith.science/paper/CMKI23MM"},"agent_actions":{"view_html":"https://pith.science/pith/CMKI23MMZUC6T7MRD7HZQB3WBQ","download_json":"https://pith.science/pith/CMKI23MMZUC6T7MRD7HZQB3WBQ.json","view_paper":"https://pith.science/paper/CMKI23MM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1709.03161&json=true","fetch_graph":"https://pith.science/api/pith-number/CMKI23MMZUC6T7MRD7HZQB3WBQ/graph.json","fetch_events":"https://pith.science/api/pith-number/CMKI23MMZUC6T7MRD7HZQB3WBQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CMKI23MMZUC6T7MRD7HZQB3WBQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CMKI23MMZUC6T7MRD7HZQB3WBQ/action/storage_attestation","attest_author":"https://pith.science/pith/CMKI23MMZUC6T7MRD7HZQB3WBQ/action/author_attestation","sign_citation":"https://pith.science/pith/CMKI23MMZUC6T7MRD7HZQB3WBQ/action/citation_signature","submit_replication":"https://pith.science/pith/CMKI23MMZUC6T7MRD7HZQB3WBQ/action/replication_record"}},"created_at":"2026-05-18T00:28:22.643901+00:00","updated_at":"2026-05-18T00:28:22.643901+00:00"}