{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:L4RY4YCJ3G2IQVTCFDWDBOPZTE","short_pith_number":"pith:L4RY4YCJ","schema_version":"1.0","canonical_sha256":"5f238e6049d9b488566228ec30b9f9993e2d9b12ae1ddae78623eaa5044d5aba","source":{"kind":"arxiv","id":"1304.6342","version":2},"attestation_state":"computed","paper":{"title":"Quasi-2D Liquid He-3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.other","authors_text":"Massimo Boninsegni, Michele Ruggeri, Saverio Moroni","submitted_at":"2013-04-23T16:40:10Z","abstract_excerpt":"Quantum Monte Carlo simulations at zero temperature of an ensemble of He-3 atoms adsorbed on Mg and Alkali substrates yield strong evidence of a thermodynamically stable liquid He-3 monolayer on all Alkali substrates, with the possible exception of Li. The effective 2D density is close to 0.02$ inverse square Angstroms on Na, making it the lowest density liquid in Nature. Its existence is underlain by zero-point atomic motion perpendicular to the substrate, whose effect is softening the short-range repulsion of the helium interatomic potential. The monolayer films should turn superfluid at a t"},"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":"1304.6342","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2013-04-23T16:40:10Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"3b16f26a975e5039ebf0bbdd765f9ed83ee7dfeb1ed394f0eb5be4787d2c7070","abstract_canon_sha256":"62bd42b9a86b0add5aa644ae7c3e26f5c67ef940ba45934e07ba61f317d05861"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:17:35.349296Z","signature_b64":"DdWpEydm87Mx4Wwxgzlgr/O5XzDG2KYCYoH1lesJ/huts4X/jatkH2DZZfY1Q9xqT7StTaAuZ2nh9CZOq5nhAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f238e6049d9b488566228ec30b9f9993e2d9b12ae1ddae78623eaa5044d5aba","last_reissued_at":"2026-05-18T03:17:35.348807Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:17:35.348807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quasi-2D Liquid He-3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.other","authors_text":"Massimo Boninsegni, Michele Ruggeri, Saverio Moroni","submitted_at":"2013-04-23T16:40:10Z","abstract_excerpt":"Quantum Monte Carlo simulations at zero temperature of an ensemble of He-3 atoms adsorbed on Mg and Alkali substrates yield strong evidence of a thermodynamically stable liquid He-3 monolayer on all Alkali substrates, with the possible exception of Li. The effective 2D density is close to 0.02$ inverse square Angstroms on Na, making it the lowest density liquid in Nature. Its existence is underlain by zero-point atomic motion perpendicular to the substrate, whose effect is softening the short-range repulsion of the helium interatomic potential. The monolayer films should turn superfluid at a t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6342","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":"1304.6342","created_at":"2026-05-18T03:17:35.348887+00:00"},{"alias_kind":"arxiv_version","alias_value":"1304.6342v2","created_at":"2026-05-18T03:17:35.348887+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6342","created_at":"2026-05-18T03:17:35.348887+00:00"},{"alias_kind":"pith_short_12","alias_value":"L4RY4YCJ3G2I","created_at":"2026-05-18T12:27:51.066281+00:00"},{"alias_kind":"pith_short_16","alias_value":"L4RY4YCJ3G2IQVTC","created_at":"2026-05-18T12:27:51.066281+00:00"},{"alias_kind":"pith_short_8","alias_value":"L4RY4YCJ","created_at":"2026-05-18T12:27:51.066281+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/L4RY4YCJ3G2IQVTCFDWDBOPZTE","json":"https://pith.science/pith/L4RY4YCJ3G2IQVTCFDWDBOPZTE.json","graph_json":"https://pith.science/api/pith-number/L4RY4YCJ3G2IQVTCFDWDBOPZTE/graph.json","events_json":"https://pith.science/api/pith-number/L4RY4YCJ3G2IQVTCFDWDBOPZTE/events.json","paper":"https://pith.science/paper/L4RY4YCJ"},"agent_actions":{"view_html":"https://pith.science/pith/L4RY4YCJ3G2IQVTCFDWDBOPZTE","download_json":"https://pith.science/pith/L4RY4YCJ3G2IQVTCFDWDBOPZTE.json","view_paper":"https://pith.science/paper/L4RY4YCJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1304.6342&json=true","fetch_graph":"https://pith.science/api/pith-number/L4RY4YCJ3G2IQVTCFDWDBOPZTE/graph.json","fetch_events":"https://pith.science/api/pith-number/L4RY4YCJ3G2IQVTCFDWDBOPZTE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/L4RY4YCJ3G2IQVTCFDWDBOPZTE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/L4RY4YCJ3G2IQVTCFDWDBOPZTE/action/storage_attestation","attest_author":"https://pith.science/pith/L4RY4YCJ3G2IQVTCFDWDBOPZTE/action/author_attestation","sign_citation":"https://pith.science/pith/L4RY4YCJ3G2IQVTCFDWDBOPZTE/action/citation_signature","submit_replication":"https://pith.science/pith/L4RY4YCJ3G2IQVTCFDWDBOPZTE/action/replication_record"}},"created_at":"2026-05-18T03:17:35.348887+00:00","updated_at":"2026-05-18T03:17:35.348887+00:00"}