{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:QGIAJ4JQ3EYVCFX4L5XP7Y7SX4","short_pith_number":"pith:QGIAJ4JQ","canonical_record":{"source":{"id":"0712.4346","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-12-28T12:58:04Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"c890eaebc564d1cb89742935f142f42df7789a1705290f24c043df6a04529e6c","abstract_canon_sha256":"d954628c434b4f1f9131d8d1db55dc7a169a720dc63999d5c13a1c296ae4abbf"},"schema_version":"1.0"},"canonical_sha256":"819004f130d9315116fc5f6effe3f2bf16bb6f9f679d92b6554ebbbbcd7c8b0b","source":{"kind":"arxiv","id":"0712.4346","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0712.4346","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"arxiv_version","alias_value":"0712.4346v3","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0712.4346","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_12","alias_value":"QGIAJ4JQ3EYV","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_16","alias_value":"QGIAJ4JQ3EYVCFX4","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_8","alias_value":"QGIAJ4JQ","created_at":"2026-07-04T17:07:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:QGIAJ4JQ3EYVCFX4L5XP7Y7SX4","target":"record","payload":{"canonical_record":{"source":{"id":"0712.4346","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-12-28T12:58:04Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"c890eaebc564d1cb89742935f142f42df7789a1705290f24c043df6a04529e6c","abstract_canon_sha256":"d954628c434b4f1f9131d8d1db55dc7a169a720dc63999d5c13a1c296ae4abbf"},"schema_version":"1.0"},"canonical_sha256":"819004f130d9315116fc5f6effe3f2bf16bb6f9f679d92b6554ebbbbcd7c8b0b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:07:23.298591Z","signature_b64":"2nTIvn4oD4YEreNIGUQN3ImZ8NczNsw9wvhxs/+C/d7sb+Qb81KTho+sTu+WuOGEkK8AE79Qkz4HVuoXavXdDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"819004f130d9315116fc5f6effe3f2bf16bb6f9f679d92b6554ebbbbcd7c8b0b","last_reissued_at":"2026-07-04T17:07:23.298190Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:07:23.298190Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0712.4346","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T17:07:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ENKKN7jCLG8PfskK+PXPRGf9YtbYNVa1788XvujkgMov2+8JoUzSPwx9Zo3nvaKGO/QnQnqpjBisn3M8iex1BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T20:23:18.043335Z"},"content_sha256":"16563e38b2faea090a563aef02fdfe27e32a31b431cd08c8ecd261030f282d40","schema_version":"1.0","event_id":"sha256:16563e38b2faea090a563aef02fdfe27e32a31b431cd08c8ecd261030f282d40"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:QGIAJ4JQ3EYVCFX4L5XP7Y7SX4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electronic properties of double-layer carbon nanotubes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"M. Pudlak, R. Pincak","submitted_at":"2007-12-28T12:58:04Z","abstract_excerpt":"The electronic spectra for double-wall zigzag and armchair nanotubes are found. The influence of nanotube curvatures on the electronic spectra is also calculated. Our finding that the outer shell is hole doped by the inner shell is in the difference between Fermi levels of individual shells which originate from the different hybridization of pi-orbital. The shift and rotation of the inner nanotube with respect to the outer nanotube are investigated. We found stable semimetal characteristics of the armchair DWNTs in regard of the shift and rotation of the inner nanotube. We predict the shift of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0712.4346","kind":"arxiv","version":3},"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/0712.4346/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":"2026-07-04T17:07:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nc8rFg59nnoUYe78ZRRk/oUCuWj8zH+6m1h1VH7vTjqgJiWE4ubQTkSHfsdcCjMnH5xuFkp9CYTRWllTTl+ABw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T20:23:18.043719Z"},"content_sha256":"7a3b2e8f7de9955819e34a76e7d36401e42f9d7e0955b27a9ad446d65a237b48","schema_version":"1.0","event_id":"sha256:7a3b2e8f7de9955819e34a76e7d36401e42f9d7e0955b27a9ad446d65a237b48"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QGIAJ4JQ3EYVCFX4L5XP7Y7SX4/bundle.json","state_url":"https://pith.science/pith/QGIAJ4JQ3EYVCFX4L5XP7Y7SX4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QGIAJ4JQ3EYVCFX4L5XP7Y7SX4/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":"2026-07-18T20:23:18Z","links":{"resolver":"https://pith.science/pith/QGIAJ4JQ3EYVCFX4L5XP7Y7SX4","bundle":"https://pith.science/pith/QGIAJ4JQ3EYVCFX4L5XP7Y7SX4/bundle.json","state":"https://pith.science/pith/QGIAJ4JQ3EYVCFX4L5XP7Y7SX4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QGIAJ4JQ3EYVCFX4L5XP7Y7SX4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:QGIAJ4JQ3EYVCFX4L5XP7Y7SX4","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":"d954628c434b4f1f9131d8d1db55dc7a169a720dc63999d5c13a1c296ae4abbf","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-12-28T12:58:04Z","title_canon_sha256":"c890eaebc564d1cb89742935f142f42df7789a1705290f24c043df6a04529e6c"},"schema_version":"1.0","source":{"id":"0712.4346","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0712.4346","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"arxiv_version","alias_value":"0712.4346v3","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0712.4346","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_12","alias_value":"QGIAJ4JQ3EYV","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_16","alias_value":"QGIAJ4JQ3EYVCFX4","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_8","alias_value":"QGIAJ4JQ","created_at":"2026-07-04T17:07:23Z"}],"graph_snapshots":[{"event_id":"sha256:7a3b2e8f7de9955819e34a76e7d36401e42f9d7e0955b27a9ad446d65a237b48","target":"graph","created_at":"2026-07-04T17:07:23Z","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/0712.4346/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The electronic spectra for double-wall zigzag and armchair nanotubes are found. The influence of nanotube curvatures on the electronic spectra is also calculated. Our finding that the outer shell is hole doped by the inner shell is in the difference between Fermi levels of individual shells which originate from the different hybridization of pi-orbital. The shift and rotation of the inner nanotube with respect to the outer nanotube are investigated. We found stable semimetal characteristics of the armchair DWNTs in regard of the shift and rotation of the inner nanotube. We predict the shift of","authors_text":"M. Pudlak, R. Pincak","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-12-28T12:58:04Z","title":"Electronic properties of double-layer carbon nanotubes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0712.4346","kind":"arxiv","version":3},"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":"sha256:16563e38b2faea090a563aef02fdfe27e32a31b431cd08c8ecd261030f282d40","target":"record","created_at":"2026-07-04T17:07:23Z","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":"d954628c434b4f1f9131d8d1db55dc7a169a720dc63999d5c13a1c296ae4abbf","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-12-28T12:58:04Z","title_canon_sha256":"c890eaebc564d1cb89742935f142f42df7789a1705290f24c043df6a04529e6c"},"schema_version":"1.0","source":{"id":"0712.4346","kind":"arxiv","version":3}},"canonical_sha256":"819004f130d9315116fc5f6effe3f2bf16bb6f9f679d92b6554ebbbbcd7c8b0b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"819004f130d9315116fc5f6effe3f2bf16bb6f9f679d92b6554ebbbbcd7c8b0b","first_computed_at":"2026-07-04T17:07:23.298190Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:07:23.298190Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2nTIvn4oD4YEreNIGUQN3ImZ8NczNsw9wvhxs/+C/d7sb+Qb81KTho+sTu+WuOGEkK8AE79Qkz4HVuoXavXdDA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:07:23.298591Z","signed_message":"canonical_sha256_bytes"},"source_id":"0712.4346","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16563e38b2faea090a563aef02fdfe27e32a31b431cd08c8ecd261030f282d40","sha256:7a3b2e8f7de9955819e34a76e7d36401e42f9d7e0955b27a9ad446d65a237b48"],"state_sha256":"9a668391b9396215bc0fefdf9958536b0508427fd661268e9ad2d3c49a76edaf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bBoBZdTsbDG1xEMBxo5EZk8g4iXO3unTjbCEZk6ua5KhfkuYj9Ymk1l6EgLBVVhD006eLG2ZS3WG1oUUGFqIBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-18T20:23:18.045969Z","bundle_sha256":"0d28ee75ae5fc1a78817b10a3d170cff87652f44deebcac010d40c147a69eb21"}}