{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:64RYE3CP546PRD3J4FUAA2WFR4","short_pith_number":"pith:64RYE3CP","schema_version":"1.0","canonical_sha256":"f723826c4fef3cf88f69e168006ac58f37ca3adc4314f8c76030746ab42f90f3","source":{"kind":"arxiv","id":"cond-mat/0212439","version":2},"attestation_state":"computed","paper":{"title":"Variable-range hopping conductivity in the copper-oxygen chains of La_3Sr_3Ca_8Cu_24O_41","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"B. Gorshunov, B. Korin-Hamzic, J. Akimitsu, M. Dressel, P. Haas, S. Tomic, T. Nagata, T. Sasaki, T. Vuletic","submitted_at":"2002-12-18T11:22:28Z","abstract_excerpt":"We show that the spin chain/ladder compound La_3Sr_3Ca_8Cu_24O_41 is an insulator with hopping transport along the chains. In the temperature range 35 - 280 K, DC conductivity sigma_{DC}(T) follows Mott's law of variable-range hopping conduction; the frequency dependence has the form sigma(\\nu, T) = \\sigma_{DC}(T) + A(T)\\nu^{s}, where s \\approx 1. The conduction mechanism changes from variable-range hopping to nearest-neighbor hopping around T_{c} =300 K. The chain array thus behaves like a one-dimensional disordered system. Disorder is due to random structural distortions of chains induced by"},"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":"cond-mat/0212439","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2002-12-18T11:22:28Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"9dc95d8684d4265f4e1c062c4d357bcc47463bec7af4f6138105df3b38ecab1d","abstract_canon_sha256":"8475e2f9fbc6745b4e76b7f71283f8c3daa026d9c2e7216fd3890053e1ea5c51"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:39:51.648086Z","signature_b64":"uDXNgdypUjC3XZMS8aRolwORSwcRmDcsvvM0jtCv4jafkZtHfuW02EmNgbKxJs7yTshGw7AKtToNAQIIbPL3Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f723826c4fef3cf88f69e168006ac58f37ca3adc4314f8c76030746ab42f90f3","last_reissued_at":"2026-05-18T04:39:51.647515Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:39:51.647515Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Variable-range hopping conductivity in the copper-oxygen chains of La_3Sr_3Ca_8Cu_24O_41","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"B. Gorshunov, B. Korin-Hamzic, J. Akimitsu, M. Dressel, P. Haas, S. Tomic, T. Nagata, T. Sasaki, T. Vuletic","submitted_at":"2002-12-18T11:22:28Z","abstract_excerpt":"We show that the spin chain/ladder compound La_3Sr_3Ca_8Cu_24O_41 is an insulator with hopping transport along the chains. In the temperature range 35 - 280 K, DC conductivity sigma_{DC}(T) follows Mott's law of variable-range hopping conduction; the frequency dependence has the form sigma(\\nu, T) = \\sigma_{DC}(T) + A(T)\\nu^{s}, where s \\approx 1. The conduction mechanism changes from variable-range hopping to nearest-neighbor hopping around T_{c} =300 K. The chain array thus behaves like a one-dimensional disordered system. Disorder is due to random structural distortions of chains induced by"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0212439","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":"cond-mat/0212439","created_at":"2026-05-18T04:39:51.647610+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0212439v2","created_at":"2026-05-18T04:39:51.647610+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0212439","created_at":"2026-05-18T04:39:51.647610+00:00"},{"alias_kind":"pith_short_12","alias_value":"64RYE3CP546P","created_at":"2026-05-18T12:25:50.845339+00:00"},{"alias_kind":"pith_short_16","alias_value":"64RYE3CP546PRD3J","created_at":"2026-05-18T12:25:50.845339+00:00"},{"alias_kind":"pith_short_8","alias_value":"64RYE3CP","created_at":"2026-05-18T12:25:50.845339+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/64RYE3CP546PRD3J4FUAA2WFR4","json":"https://pith.science/pith/64RYE3CP546PRD3J4FUAA2WFR4.json","graph_json":"https://pith.science/api/pith-number/64RYE3CP546PRD3J4FUAA2WFR4/graph.json","events_json":"https://pith.science/api/pith-number/64RYE3CP546PRD3J4FUAA2WFR4/events.json","paper":"https://pith.science/paper/64RYE3CP"},"agent_actions":{"view_html":"https://pith.science/pith/64RYE3CP546PRD3J4FUAA2WFR4","download_json":"https://pith.science/pith/64RYE3CP546PRD3J4FUAA2WFR4.json","view_paper":"https://pith.science/paper/64RYE3CP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0212439&json=true","fetch_graph":"https://pith.science/api/pith-number/64RYE3CP546PRD3J4FUAA2WFR4/graph.json","fetch_events":"https://pith.science/api/pith-number/64RYE3CP546PRD3J4FUAA2WFR4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/64RYE3CP546PRD3J4FUAA2WFR4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/64RYE3CP546PRD3J4FUAA2WFR4/action/storage_attestation","attest_author":"https://pith.science/pith/64RYE3CP546PRD3J4FUAA2WFR4/action/author_attestation","sign_citation":"https://pith.science/pith/64RYE3CP546PRD3J4FUAA2WFR4/action/citation_signature","submit_replication":"https://pith.science/pith/64RYE3CP546PRD3J4FUAA2WFR4/action/replication_record"}},"created_at":"2026-05-18T04:39:51.647610+00:00","updated_at":"2026-05-18T04:39:51.647610+00:00"}