{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:G43W4K3TGXAIMJSWJOHGAW4ASU","short_pith_number":"pith:G43W4K3T","schema_version":"1.0","canonical_sha256":"37376e2b7335c08626564b8e605b809529f1306530912db0edf8dc03b70edc61","source":{"kind":"arxiv","id":"1111.1290","version":1},"attestation_state":"computed","paper":{"title":"119Sn NMR probe of magnetic fluctuations in SnO2 nanoparticles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Sundaresan, A.V. Mahajan, Nitesh Kumar, P. Khuntia, Tusharkanti Dey","submitted_at":"2011-11-05T09:10:13Z","abstract_excerpt":"119Sn nuclear magnetic resonance (NMR) spectra and spin-lattice relaxation rate (1/T1) in SnO2 nanoparticles were measured as a function of temperature and compared with those of SnO2 bulk sample. A 15% loss of 119Sn NMR signal intensity for the nano sample compared to the bulk sample was observed. This is indicative of ferromagnetism from a small fraction of the sample. Another major finding is that the recovery of the 119Sn longitudinal nuclear magnetization in the nano sample follows a stretched exponential behavior, as opposed to that in bulk which is exponential. Further, the 119Sn 1/T1 a"},"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":"1111.1290","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-05T09:10:13Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"e5db1b7170063383f264d66f7d98ec0425244128664b8c517dd0312caee373e4","abstract_canon_sha256":"4ce1b250c3d952687a2b34866b9f9ee68d94ca836fd8d9f4719604250cda3820"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:06:45.874609Z","signature_b64":"rmb4VIpOcIMzziNOKqguaieyVimOSjOudFIdSWgE/9dcCrpFYjVmUj7uhquYWvXcrpzlM8IYxrhr5M30as5LCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"37376e2b7335c08626564b8e605b809529f1306530912db0edf8dc03b70edc61","last_reissued_at":"2026-05-18T04:06:45.874019Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:06:45.874019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"119Sn NMR probe of magnetic fluctuations in SnO2 nanoparticles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Sundaresan, A.V. Mahajan, Nitesh Kumar, P. Khuntia, Tusharkanti Dey","submitted_at":"2011-11-05T09:10:13Z","abstract_excerpt":"119Sn nuclear magnetic resonance (NMR) spectra and spin-lattice relaxation rate (1/T1) in SnO2 nanoparticles were measured as a function of temperature and compared with those of SnO2 bulk sample. A 15% loss of 119Sn NMR signal intensity for the nano sample compared to the bulk sample was observed. This is indicative of ferromagnetism from a small fraction of the sample. Another major finding is that the recovery of the 119Sn longitudinal nuclear magnetization in the nano sample follows a stretched exponential behavior, as opposed to that in bulk which is exponential. Further, the 119Sn 1/T1 a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.1290","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":"1111.1290","created_at":"2026-05-18T04:06:45.874094+00:00"},{"alias_kind":"arxiv_version","alias_value":"1111.1290v1","created_at":"2026-05-18T04:06:45.874094+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.1290","created_at":"2026-05-18T04:06:45.874094+00:00"},{"alias_kind":"pith_short_12","alias_value":"G43W4K3TGXAI","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_16","alias_value":"G43W4K3TGXAIMJSW","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_8","alias_value":"G43W4K3T","created_at":"2026-05-18T12:26:28.662955+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/G43W4K3TGXAIMJSWJOHGAW4ASU","json":"https://pith.science/pith/G43W4K3TGXAIMJSWJOHGAW4ASU.json","graph_json":"https://pith.science/api/pith-number/G43W4K3TGXAIMJSWJOHGAW4ASU/graph.json","events_json":"https://pith.science/api/pith-number/G43W4K3TGXAIMJSWJOHGAW4ASU/events.json","paper":"https://pith.science/paper/G43W4K3T"},"agent_actions":{"view_html":"https://pith.science/pith/G43W4K3TGXAIMJSWJOHGAW4ASU","download_json":"https://pith.science/pith/G43W4K3TGXAIMJSWJOHGAW4ASU.json","view_paper":"https://pith.science/paper/G43W4K3T","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1111.1290&json=true","fetch_graph":"https://pith.science/api/pith-number/G43W4K3TGXAIMJSWJOHGAW4ASU/graph.json","fetch_events":"https://pith.science/api/pith-number/G43W4K3TGXAIMJSWJOHGAW4ASU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/G43W4K3TGXAIMJSWJOHGAW4ASU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/G43W4K3TGXAIMJSWJOHGAW4ASU/action/storage_attestation","attest_author":"https://pith.science/pith/G43W4K3TGXAIMJSWJOHGAW4ASU/action/author_attestation","sign_citation":"https://pith.science/pith/G43W4K3TGXAIMJSWJOHGAW4ASU/action/citation_signature","submit_replication":"https://pith.science/pith/G43W4K3TGXAIMJSWJOHGAW4ASU/action/replication_record"}},"created_at":"2026-05-18T04:06:45.874094+00:00","updated_at":"2026-05-18T04:06:45.874094+00:00"}