{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:CCKAY6KOWG2QWQSLYH2OB66MJM","short_pith_number":"pith:CCKAY6KO","schema_version":"1.0","canonical_sha256":"10940c794eb1b50b424bc1f4e0fbcc4b0cd9b9643ca68cfee8365fddd73576af","source":{"kind":"arxiv","id":"1105.2855","version":1},"attestation_state":"computed","paper":{"title":"Ultra-Thin Double-Walled Carbon Nanotubes A Novel Nanocontainer for Preparing Atomic Wires","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Kang An, Leimei Sheng, Lei Shi, Liming Yu, Xinluo Zhao, Yoshinori Ando","submitted_at":"2011-05-14T02:19:13Z","abstract_excerpt":"Double-walled carbon nanotubes (DWCNTs) with high graphitization have been synthesized by hydrogen arc discharge. The obtained DWCNTs have a narrow distribution of diameters of both the inner and outer tubes, and more than half of the DWCNTs have inner diameters in the range 0.6-1.0 nm. Field electron emission from a DWCNT cathode to an anode has been measured, and the emission current density of DWCNTs reached 1 A/cm2 at an applied field of about 4.3 V/{\\mu}m. After high-temperature treatment of DWCNTs, long linear carbon chains (C-chains) can be grown inside the ultra-thin DWCNTs to form a n"},"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":"1105.2855","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-05-14T02:19:13Z","cross_cats_sorted":[],"title_canon_sha256":"789c93d26e7b26eb5b173f0738174b53923cc0e45bb19b4344f3413354b015f7","abstract_canon_sha256":"ffc8cbc01842c5121ef62cf77ae6320bcc79182202448e00826666933fdedbc7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:22:01.899534Z","signature_b64":"+UXSRR4TGunWzgSK8moIraKb+BzGWizyb41PxGBktTw7M7m0zsAaLdd5GTMSaEuy+a5T6EuRgZ0jQZqB6OdlBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"10940c794eb1b50b424bc1f4e0fbcc4b0cd9b9643ca68cfee8365fddd73576af","last_reissued_at":"2026-05-18T04:22:01.898912Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:22:01.898912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ultra-Thin Double-Walled Carbon Nanotubes A Novel Nanocontainer for Preparing Atomic Wires","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Kang An, Leimei Sheng, Lei Shi, Liming Yu, Xinluo Zhao, Yoshinori Ando","submitted_at":"2011-05-14T02:19:13Z","abstract_excerpt":"Double-walled carbon nanotubes (DWCNTs) with high graphitization have been synthesized by hydrogen arc discharge. The obtained DWCNTs have a narrow distribution of diameters of both the inner and outer tubes, and more than half of the DWCNTs have inner diameters in the range 0.6-1.0 nm. Field electron emission from a DWCNT cathode to an anode has been measured, and the emission current density of DWCNTs reached 1 A/cm2 at an applied field of about 4.3 V/{\\mu}m. After high-temperature treatment of DWCNTs, long linear carbon chains (C-chains) can be grown inside the ultra-thin DWCNTs to form a n"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.2855","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":"1105.2855","created_at":"2026-05-18T04:22:01.899014+00:00"},{"alias_kind":"arxiv_version","alias_value":"1105.2855v1","created_at":"2026-05-18T04:22:01.899014+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.2855","created_at":"2026-05-18T04:22:01.899014+00:00"},{"alias_kind":"pith_short_12","alias_value":"CCKAY6KOWG2Q","created_at":"2026-05-18T12:26:26.731475+00:00"},{"alias_kind":"pith_short_16","alias_value":"CCKAY6KOWG2QWQSL","created_at":"2026-05-18T12:26:26.731475+00:00"},{"alias_kind":"pith_short_8","alias_value":"CCKAY6KO","created_at":"2026-05-18T12:26:26.731475+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/CCKAY6KOWG2QWQSLYH2OB66MJM","json":"https://pith.science/pith/CCKAY6KOWG2QWQSLYH2OB66MJM.json","graph_json":"https://pith.science/api/pith-number/CCKAY6KOWG2QWQSLYH2OB66MJM/graph.json","events_json":"https://pith.science/api/pith-number/CCKAY6KOWG2QWQSLYH2OB66MJM/events.json","paper":"https://pith.science/paper/CCKAY6KO"},"agent_actions":{"view_html":"https://pith.science/pith/CCKAY6KOWG2QWQSLYH2OB66MJM","download_json":"https://pith.science/pith/CCKAY6KOWG2QWQSLYH2OB66MJM.json","view_paper":"https://pith.science/paper/CCKAY6KO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1105.2855&json=true","fetch_graph":"https://pith.science/api/pith-number/CCKAY6KOWG2QWQSLYH2OB66MJM/graph.json","fetch_events":"https://pith.science/api/pith-number/CCKAY6KOWG2QWQSLYH2OB66MJM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CCKAY6KOWG2QWQSLYH2OB66MJM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CCKAY6KOWG2QWQSLYH2OB66MJM/action/storage_attestation","attest_author":"https://pith.science/pith/CCKAY6KOWG2QWQSLYH2OB66MJM/action/author_attestation","sign_citation":"https://pith.science/pith/CCKAY6KOWG2QWQSLYH2OB66MJM/action/citation_signature","submit_replication":"https://pith.science/pith/CCKAY6KOWG2QWQSLYH2OB66MJM/action/replication_record"}},"created_at":"2026-05-18T04:22:01.899014+00:00","updated_at":"2026-05-18T04:22:01.899014+00:00"}