{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:A6SVPW4LCXSY3TP4LPGHKR3K3U","short_pith_number":"pith:A6SVPW4L","schema_version":"1.0","canonical_sha256":"07a557db8b15e58dcdfc5bcc75476add1c36186eb06404c34d7a14dba2112490","source":{"kind":"arxiv","id":"1103.0915","version":2},"attestation_state":"computed","paper":{"title":"Equation of state of two--dimensional $^3$He at zero temperature","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"cond-mat.stat-mech","authors_text":"A. Motta, D. E. Galli, E. Vitali, M. Nava, S. Moroni","submitted_at":"2011-03-04T14:48:03Z","abstract_excerpt":"We have performed a Quantum Monte Carlo study of a two-dimensional bulk sample of interacting 1/2-spin structureless fermions, a model of $^3$He adsorbed on a variety of preplated graphite substrates. We have computed the equation of state and the polarization energy using both the standard fixed-node approximate technique and a formally exact methodology, relying on bosonic imaginary-time correlation functions of operators suitably chosen in order to extract fermionic energies. As the density increases, the fixed-node approximation predicts a transition to an itinerant ferromagnetic fluid, wh"},"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":"1103.0915","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-03-04T14:48:03Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"ea213df0e50b5a1fe22de1ab7c9d5fdbbd049e3f20f0ca6d984c8a48d635733a","abstract_canon_sha256":"4abee84734b58f6221f8735a6a93a6b8cdea98607cedec757784f3b04ce65904"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:59.767709Z","signature_b64":"SYbZib/oV0wzz6S4MMk/ZNmj6BdhpmfnOThrwRnbMIRl991J5ShOvNw9Ugg60vU6TldDq3Gx2PrKzw9i4X0/AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"07a557db8b15e58dcdfc5bcc75476add1c36186eb06404c34d7a14dba2112490","last_reissued_at":"2026-05-18T02:02:59.767021Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:59.767021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Equation of state of two--dimensional $^3$He at zero temperature","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"cond-mat.stat-mech","authors_text":"A. Motta, D. E. Galli, E. Vitali, M. Nava, S. Moroni","submitted_at":"2011-03-04T14:48:03Z","abstract_excerpt":"We have performed a Quantum Monte Carlo study of a two-dimensional bulk sample of interacting 1/2-spin structureless fermions, a model of $^3$He adsorbed on a variety of preplated graphite substrates. We have computed the equation of state and the polarization energy using both the standard fixed-node approximate technique and a formally exact methodology, relying on bosonic imaginary-time correlation functions of operators suitably chosen in order to extract fermionic energies. As the density increases, the fixed-node approximation predicts a transition to an itinerant ferromagnetic fluid, wh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.0915","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":"1103.0915","created_at":"2026-05-18T02:02:59.767122+00:00"},{"alias_kind":"arxiv_version","alias_value":"1103.0915v2","created_at":"2026-05-18T02:02:59.767122+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.0915","created_at":"2026-05-18T02:02:59.767122+00:00"},{"alias_kind":"pith_short_12","alias_value":"A6SVPW4LCXSY","created_at":"2026-05-18T12:26:24.575870+00:00"},{"alias_kind":"pith_short_16","alias_value":"A6SVPW4LCXSY3TP4","created_at":"2026-05-18T12:26:24.575870+00:00"},{"alias_kind":"pith_short_8","alias_value":"A6SVPW4L","created_at":"2026-05-18T12:26:24.575870+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/A6SVPW4LCXSY3TP4LPGHKR3K3U","json":"https://pith.science/pith/A6SVPW4LCXSY3TP4LPGHKR3K3U.json","graph_json":"https://pith.science/api/pith-number/A6SVPW4LCXSY3TP4LPGHKR3K3U/graph.json","events_json":"https://pith.science/api/pith-number/A6SVPW4LCXSY3TP4LPGHKR3K3U/events.json","paper":"https://pith.science/paper/A6SVPW4L"},"agent_actions":{"view_html":"https://pith.science/pith/A6SVPW4LCXSY3TP4LPGHKR3K3U","download_json":"https://pith.science/pith/A6SVPW4LCXSY3TP4LPGHKR3K3U.json","view_paper":"https://pith.science/paper/A6SVPW4L","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1103.0915&json=true","fetch_graph":"https://pith.science/api/pith-number/A6SVPW4LCXSY3TP4LPGHKR3K3U/graph.json","fetch_events":"https://pith.science/api/pith-number/A6SVPW4LCXSY3TP4LPGHKR3K3U/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/A6SVPW4LCXSY3TP4LPGHKR3K3U/action/timestamp_anchor","attest_storage":"https://pith.science/pith/A6SVPW4LCXSY3TP4LPGHKR3K3U/action/storage_attestation","attest_author":"https://pith.science/pith/A6SVPW4LCXSY3TP4LPGHKR3K3U/action/author_attestation","sign_citation":"https://pith.science/pith/A6SVPW4LCXSY3TP4LPGHKR3K3U/action/citation_signature","submit_replication":"https://pith.science/pith/A6SVPW4LCXSY3TP4LPGHKR3K3U/action/replication_record"}},"created_at":"2026-05-18T02:02:59.767122+00:00","updated_at":"2026-05-18T02:02:59.767122+00:00"}