{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:QNCTJ56RF74GVDWJ2WXG6KE3D3","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"2befe8b47c3a11cf61dbe4402ade789ec69588b309c277497b9293452457c11f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-19T10:54:53Z","title_canon_sha256":"306d59ed8287cfb49cb452ad79f5a9640f78d47cc332d42a84f3756fcf009b30"},"schema_version":"1.0","source":{"id":"1604.05515","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.05515","created_at":"2026-05-18T00:47:14Z"},{"alias_kind":"arxiv_version","alias_value":"1604.05515v1","created_at":"2026-05-18T00:47:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.05515","created_at":"2026-05-18T00:47:14Z"},{"alias_kind":"pith_short_12","alias_value":"QNCTJ56RF74G","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"QNCTJ56RF74GVDWJ","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"QNCTJ56R","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:2fef398b508bff0e901f4cd481398eecc227a96579ff2fbdf522e9c2c4f41f97","target":"graph","created_at":"2026-05-18T00:47:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We use ab intio density functional theory to investigate the adsorption properties of acetylsalicylic acid or aspirin on a (10, 0) carbon nanotube (CNT) and a (8, 0) triazine-based graphitic carbon nitride nanotube (CNNT). It is found that an aspirin molecule binds stronger to the CNNT with its adsorption energy of 0.67 eV than to the CNT with 0.51 eV. The stronger adsorption energy on the CNNT is ascribed to the high reactivity of its N atoms with high electron affinity. The CNNT exhibits local electric dipole moments, which cause strong charge redistribution in the aspirin molecule adsorbed ","authors_text":"Dae-Gyeon Kwon, Gunn Kim, Yongju Lee, Young-Kyun Kwon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-19T10:54:53Z","title":"Ab initio Study of Aspirin Adsorption on Single-walled Carbon and Carbon Nitride Nanotubes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.05515","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:f85b294397c391976cf9554e948a9ae1075f8f6efe7009468c6dd5ae1b215c1d","target":"record","created_at":"2026-05-18T00:47:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"2befe8b47c3a11cf61dbe4402ade789ec69588b309c277497b9293452457c11f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-19T10:54:53Z","title_canon_sha256":"306d59ed8287cfb49cb452ad79f5a9640f78d47cc332d42a84f3756fcf009b30"},"schema_version":"1.0","source":{"id":"1604.05515","kind":"arxiv","version":1}},"canonical_sha256":"834534f7d12ff86a8ec9d5ae6f289b1ed264ada7c755e1943bae25c2b6638f4a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"834534f7d12ff86a8ec9d5ae6f289b1ed264ada7c755e1943bae25c2b6638f4a","first_computed_at":"2026-05-18T00:47:14.989784Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:14.989784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mPYbHFm/ZqENuYHxcrDxj41fqZ8scZkQLMc1BxrW/BR0DYzje4mHf+sWV8fU0dk2FXgX+BQRnChl84jWwcQFBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:14.990469Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.05515","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f85b294397c391976cf9554e948a9ae1075f8f6efe7009468c6dd5ae1b215c1d","sha256:2fef398b508bff0e901f4cd481398eecc227a96579ff2fbdf522e9c2c4f41f97"],"state_sha256":"e21ae430ed03a64003e9d6667a589b45ed3a05b07e7cd33b3cfe6a83d4d0d444"}