{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:I6HZXISYZORKN2EVU2DNRLBCVS","short_pith_number":"pith:I6HZXISY","schema_version":"1.0","canonical_sha256":"478f9ba258cba2a6e895a686d8ac22acaefe2d01e607fe0d592cd81066499eb7","source":{"kind":"arxiv","id":"1106.2566","version":1},"attestation_state":"computed","paper":{"title":"On measuring colloidal volume fractions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"C. Patrick Royall, Eric R. Weeks, Wilson C. K. Poon","submitted_at":"2011-06-13T21:30:27Z","abstract_excerpt":"Hard-sphere colloids are popular as models for testing fundamental theories in condensed matter and statistical physics, from crystal nucleation to the glass transition. A single parameter, the volume fraction (phi), characterizes an ideal, monodisperse hard-sphere suspension. In comparing experiments with theories and simulation, researchers to date have paid little attention to likely uncertainties in experimentally-quoted phi values. We critically review the experimental measurement of phi in hard-sphere colloids, and show that while statistical uncertainties in comparing relative values of"},"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":"1106.2566","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2011-06-13T21:30:27Z","cross_cats_sorted":[],"title_canon_sha256":"dafb2a3015be0e3681a5619949d4c87dcaf14fea8516d8642c9a673a1f4cc32b","abstract_canon_sha256":"1c9f48fc086f6144c24ec5544d48cab7debdc68c3baab13130066c4b5f615849"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:27:22.869854Z","signature_b64":"Gj5abkGSSEVxaR0xQv66juYSKD0qutP4TTeYd50BkrRnkFI8pBZfboZwBXX3GGmMCd8gN04pdGgxCtHCVKIMBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"478f9ba258cba2a6e895a686d8ac22acaefe2d01e607fe0d592cd81066499eb7","last_reissued_at":"2026-05-18T00:27:22.869290Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:27:22.869290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On measuring colloidal volume fractions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"C. Patrick Royall, Eric R. Weeks, Wilson C. K. Poon","submitted_at":"2011-06-13T21:30:27Z","abstract_excerpt":"Hard-sphere colloids are popular as models for testing fundamental theories in condensed matter and statistical physics, from crystal nucleation to the glass transition. A single parameter, the volume fraction (phi), characterizes an ideal, monodisperse hard-sphere suspension. In comparing experiments with theories and simulation, researchers to date have paid little attention to likely uncertainties in experimentally-quoted phi values. We critically review the experimental measurement of phi in hard-sphere colloids, and show that while statistical uncertainties in comparing relative values of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.2566","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1106.2566","created_at":"2026-05-18T00:27:22.869379+00:00"},{"alias_kind":"arxiv_version","alias_value":"1106.2566v1","created_at":"2026-05-18T00:27:22.869379+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.2566","created_at":"2026-05-18T00:27:22.869379+00:00"},{"alias_kind":"pith_short_12","alias_value":"I6HZXISYZORK","created_at":"2026-05-18T12:26:30.835961+00:00"},{"alias_kind":"pith_short_16","alias_value":"I6HZXISYZORKN2EV","created_at":"2026-05-18T12:26:30.835961+00:00"},{"alias_kind":"pith_short_8","alias_value":"I6HZXISY","created_at":"2026-05-18T12:26:30.835961+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/I6HZXISYZORKN2EVU2DNRLBCVS","json":"https://pith.science/pith/I6HZXISYZORKN2EVU2DNRLBCVS.json","graph_json":"https://pith.science/api/pith-number/I6HZXISYZORKN2EVU2DNRLBCVS/graph.json","events_json":"https://pith.science/api/pith-number/I6HZXISYZORKN2EVU2DNRLBCVS/events.json","paper":"https://pith.science/paper/I6HZXISY"},"agent_actions":{"view_html":"https://pith.science/pith/I6HZXISYZORKN2EVU2DNRLBCVS","download_json":"https://pith.science/pith/I6HZXISYZORKN2EVU2DNRLBCVS.json","view_paper":"https://pith.science/paper/I6HZXISY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1106.2566&json=true","fetch_graph":"https://pith.science/api/pith-number/I6HZXISYZORKN2EVU2DNRLBCVS/graph.json","fetch_events":"https://pith.science/api/pith-number/I6HZXISYZORKN2EVU2DNRLBCVS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/I6HZXISYZORKN2EVU2DNRLBCVS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/I6HZXISYZORKN2EVU2DNRLBCVS/action/storage_attestation","attest_author":"https://pith.science/pith/I6HZXISYZORKN2EVU2DNRLBCVS/action/author_attestation","sign_citation":"https://pith.science/pith/I6HZXISYZORKN2EVU2DNRLBCVS/action/citation_signature","submit_replication":"https://pith.science/pith/I6HZXISYZORKN2EVU2DNRLBCVS/action/replication_record"}},"created_at":"2026-05-18T00:27:22.869379+00:00","updated_at":"2026-05-18T00:27:22.869379+00:00"}