{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:BMHBWGI7DHVVG66M2KUWIWDSV3","short_pith_number":"pith:BMHBWGI7","canonical_record":{"source":{"id":"cond-mat/0612595","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-22T16:25:35Z","cross_cats_sorted":[],"title_canon_sha256":"29200c12f2ccdc45f951d9816aefd8fcbb0989dc1df270eba37dc8f39d2c278a","abstract_canon_sha256":"809efffaf1f8da127e34d53feea405c378b8720c97308267d9f208e69c6ba920"},"schema_version":"1.0"},"canonical_sha256":"0b0e1b191f19eb537bccd2a9645872aeedf91bee2d25a4f23bc63ed173e52b70","source":{"kind":"arxiv","id":"cond-mat/0612595","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0612595","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0612595v1","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0612595","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"pith_short_12","alias_value":"BMHBWGI7DHVV","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"pith_short_16","alias_value":"BMHBWGI7DHVVG66M","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"pith_short_8","alias_value":"BMHBWGI7","created_at":"2026-07-04T15:01:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:BMHBWGI7DHVVG66M2KUWIWDSV3","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0612595","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-22T16:25:35Z","cross_cats_sorted":[],"title_canon_sha256":"29200c12f2ccdc45f951d9816aefd8fcbb0989dc1df270eba37dc8f39d2c278a","abstract_canon_sha256":"809efffaf1f8da127e34d53feea405c378b8720c97308267d9f208e69c6ba920"},"schema_version":"1.0"},"canonical_sha256":"0b0e1b191f19eb537bccd2a9645872aeedf91bee2d25a4f23bc63ed173e52b70","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:01:50.239866Z","signature_b64":"kDUsZApNUTbpLEMUiZBrDGinfBkLUNwHHBZ4+kOEjaB33DBicUDQSAWXKn5wqXtBGu+MSlw/+j2knUds9WJeDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0b0e1b191f19eb537bccd2a9645872aeedf91bee2d25a4f23bc63ed173e52b70","last_reissued_at":"2026-07-04T15:01:50.239457Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:01:50.239457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0612595","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:01:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kczxwx3wkI2UosXcG8vDNfxhaRpr/mSOvTY2P30yCegAK4GBBgPfaagIPgvujAiCyXmifl8EZ7C+JPEguY4SBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:22:07.323189Z"},"content_sha256":"56f00595e71e7583a952e4b071678ad3fedb1f18c512fbd9c1c2668d42d28956","schema_version":"1.0","event_id":"sha256:56f00595e71e7583a952e4b071678ad3fedb1f18c512fbd9c1c2668d42d28956"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:BMHBWGI7DHVVG66M2KUWIWDSV3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Geometry-induced smoothing of van Hove singularities in capped carbon nanotubes","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"D.V. Kolesnikov, V.A. Osipov","submitted_at":"2006-12-22T16:25:35Z","abstract_excerpt":"The electronic states of capped semi-infinite nanotubes are studied within the phenomenological gauge field-theory model. A single manifold for the description of both the nanotube and the cap region (considered as nearly a half of either Ih or I fullerene) is suggested. The wavefunctions and the density of states (DoS) are numerically calculated for both metallic and semiconducting nanotubes. The smoothing of van Hove singularities is found and proven analytically. The comparison with the experimental observations is discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0612595","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/cond-mat/0612595/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:01:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y76DjAELcTru3+vHEvRQbtpD8nN/ORvQ6sMbRK0ps8wTTLGu9CGEE2HZTt6jtjV/gAquShCwX9FyonzBXv7uAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:22:07.323568Z"},"content_sha256":"5aa3774d4a4ff011de08bbda68a5c5b6d5516372049aa51502f9bdbe6b88f7b0","schema_version":"1.0","event_id":"sha256:5aa3774d4a4ff011de08bbda68a5c5b6d5516372049aa51502f9bdbe6b88f7b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BMHBWGI7DHVVG66M2KUWIWDSV3/bundle.json","state_url":"https://pith.science/pith/BMHBWGI7DHVVG66M2KUWIWDSV3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BMHBWGI7DHVVG66M2KUWIWDSV3/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-06T19:22:07Z","links":{"resolver":"https://pith.science/pith/BMHBWGI7DHVVG66M2KUWIWDSV3","bundle":"https://pith.science/pith/BMHBWGI7DHVVG66M2KUWIWDSV3/bundle.json","state":"https://pith.science/pith/BMHBWGI7DHVVG66M2KUWIWDSV3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BMHBWGI7DHVVG66M2KUWIWDSV3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:BMHBWGI7DHVVG66M2KUWIWDSV3","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":"809efffaf1f8da127e34d53feea405c378b8720c97308267d9f208e69c6ba920","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-22T16:25:35Z","title_canon_sha256":"29200c12f2ccdc45f951d9816aefd8fcbb0989dc1df270eba37dc8f39d2c278a"},"schema_version":"1.0","source":{"id":"cond-mat/0612595","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0612595","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0612595v1","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0612595","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"pith_short_12","alias_value":"BMHBWGI7DHVV","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"pith_short_16","alias_value":"BMHBWGI7DHVVG66M","created_at":"2026-07-04T15:01:50Z"},{"alias_kind":"pith_short_8","alias_value":"BMHBWGI7","created_at":"2026-07-04T15:01:50Z"}],"graph_snapshots":[{"event_id":"sha256:5aa3774d4a4ff011de08bbda68a5c5b6d5516372049aa51502f9bdbe6b88f7b0","target":"graph","created_at":"2026-07-04T15:01:50Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/0612595/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The electronic states of capped semi-infinite nanotubes are studied within the phenomenological gauge field-theory model. A single manifold for the description of both the nanotube and the cap region (considered as nearly a half of either Ih or I fullerene) is suggested. The wavefunctions and the density of states (DoS) are numerically calculated for both metallic and semiconducting nanotubes. The smoothing of van Hove singularities is found and proven analytically. The comparison with the experimental observations is discussed.","authors_text":"D.V. Kolesnikov, V.A. Osipov","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-22T16:25:35Z","title":"Geometry-induced smoothing of van Hove singularities in capped carbon nanotubes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0612595","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":"sha256:56f00595e71e7583a952e4b071678ad3fedb1f18c512fbd9c1c2668d42d28956","target":"record","created_at":"2026-07-04T15:01:50Z","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":"809efffaf1f8da127e34d53feea405c378b8720c97308267d9f208e69c6ba920","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-22T16:25:35Z","title_canon_sha256":"29200c12f2ccdc45f951d9816aefd8fcbb0989dc1df270eba37dc8f39d2c278a"},"schema_version":"1.0","source":{"id":"cond-mat/0612595","kind":"arxiv","version":1}},"canonical_sha256":"0b0e1b191f19eb537bccd2a9645872aeedf91bee2d25a4f23bc63ed173e52b70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b0e1b191f19eb537bccd2a9645872aeedf91bee2d25a4f23bc63ed173e52b70","first_computed_at":"2026-07-04T15:01:50.239457Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:01:50.239457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kDUsZApNUTbpLEMUiZBrDGinfBkLUNwHHBZ4+kOEjaB33DBicUDQSAWXKn5wqXtBGu+MSlw/+j2knUds9WJeDw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:01:50.239866Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0612595","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56f00595e71e7583a952e4b071678ad3fedb1f18c512fbd9c1c2668d42d28956","sha256:5aa3774d4a4ff011de08bbda68a5c5b6d5516372049aa51502f9bdbe6b88f7b0"],"state_sha256":"f22e18371a2cd6fc199b8fb142d2908a10bb2f19da54fbbc27845137cfe8b8d4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2xKoGYsjgECikNwEfEetZb4Hf8oloValMi4jYGC8W+bYvXWV+XrdWeVEWnNx7jN2YZ6nIY2Abs8L5Jqpoh+iCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T19:22:07.326145Z","bundle_sha256":"91af462a07546b22d990f44acf1d9a4a28467526c9a95b17b5527f11b3f2bfc7"}}