{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:B2XVI3L5CPKVDRP7MNJOZJ5LBB","short_pith_number":"pith:B2XVI3L5","canonical_record":{"source":{"id":"cond-mat/0702019","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-02-01T15:07:49Z","cross_cats_sorted":[],"title_canon_sha256":"aa912aa0bdc89a2c7f6adf187feb91558c80e21ea979b1ab24b0d216213c0d34","abstract_canon_sha256":"90be5012129027bfff9d2433fec2c10ac8aa9db95a6d72d36ce27b0a5a889a87"},"schema_version":"1.0"},"canonical_sha256":"0eaf546d7d13d551c5ff6352eca7ab0843965b4654d318cee4972e7219b3d40a","source":{"kind":"arxiv","id":"cond-mat/0702019","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0702019","created_at":"2026-05-18T04:42:22Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0702019v1","created_at":"2026-05-18T04:42:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0702019","created_at":"2026-05-18T04:42:22Z"},{"alias_kind":"pith_short_12","alias_value":"B2XVI3L5CPKV","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"B2XVI3L5CPKVDRP7","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"B2XVI3L5","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:B2XVI3L5CPKVDRP7MNJOZJ5LBB","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0702019","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-02-01T15:07:49Z","cross_cats_sorted":[],"title_canon_sha256":"aa912aa0bdc89a2c7f6adf187feb91558c80e21ea979b1ab24b0d216213c0d34","abstract_canon_sha256":"90be5012129027bfff9d2433fec2c10ac8aa9db95a6d72d36ce27b0a5a889a87"},"schema_version":"1.0"},"canonical_sha256":"0eaf546d7d13d551c5ff6352eca7ab0843965b4654d318cee4972e7219b3d40a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:42:22.540275Z","signature_b64":"KBzKrnDeL0bC/wWXuGnhow651dP+iGwXuTp+PqlDDxvg48WZO3NHe3SS7f9GY43tqIjCiDjhzlaHeN/HcPCeDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0eaf546d7d13d551c5ff6352eca7ab0843965b4654d318cee4972e7219b3d40a","last_reissued_at":"2026-05-18T04:42:22.539652Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:42:22.539652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0702019","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":"2026-05-18T04:42:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xJfCC8yS7TmMtTBUEuYoFZp4XHR9LdxtMfqxFhmY7BZS5mZhWboAmB8aOfIguW6Quqa148B4xzdEaibPnzUtCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:22:54.077285Z"},"content_sha256":"9ebcaec753bd92e0d2f5183c13aca632902694ddee10543d3f8fd61ab18e9330","schema_version":"1.0","event_id":"sha256:9ebcaec753bd92e0d2f5183c13aca632902694ddee10543d3f8fd61ab18e9330"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:B2XVI3L5CPKVDRP7MNJOZJ5LBB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Zero-bias anomaly in the tunneling density of states of graphene","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Alex Kamenev, Eros Mariani, Felix von Oppen, Leonid I. Glazman","submitted_at":"2007-02-01T15:07:49Z","abstract_excerpt":"In the vicinity of the Fermi energy, the band structure of graphene is well described by a Dirac equation. Impurities will generally induce both a scalar potential as well as a (fictitious) gauge field acting on the Dirac fermions. We show that the angular dependence of the zero-bias anomaly in the spatially resolved tunneling density of states (TDOS) around a particular impurity allows one to distinguish between these two contributions. Our predictions can be tested in scanning-tunneling-microscopy measurements on graphene."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0702019","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:42:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rC6QnUSMg9cdEFOO3AVROa0D9emE3HhbQiioy0kj2dgZwwPPGNnn59G11bsXZFy4GD7Qye3WI3FRxlMYgbn5Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:22:54.077956Z"},"content_sha256":"860b19ee5431aba56b10e0e62ac55f553a3a72266034095462d3dc9b4e3b8d3d","schema_version":"1.0","event_id":"sha256:860b19ee5431aba56b10e0e62ac55f553a3a72266034095462d3dc9b4e3b8d3d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B2XVI3L5CPKVDRP7MNJOZJ5LBB/bundle.json","state_url":"https://pith.science/pith/B2XVI3L5CPKVDRP7MNJOZJ5LBB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B2XVI3L5CPKVDRP7MNJOZJ5LBB/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":"2026-05-26T17:22:54Z","links":{"resolver":"https://pith.science/pith/B2XVI3L5CPKVDRP7MNJOZJ5LBB","bundle":"https://pith.science/pith/B2XVI3L5CPKVDRP7MNJOZJ5LBB/bundle.json","state":"https://pith.science/pith/B2XVI3L5CPKVDRP7MNJOZJ5LBB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B2XVI3L5CPKVDRP7MNJOZJ5LBB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:B2XVI3L5CPKVDRP7MNJOZJ5LBB","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":"90be5012129027bfff9d2433fec2c10ac8aa9db95a6d72d36ce27b0a5a889a87","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-02-01T15:07:49Z","title_canon_sha256":"aa912aa0bdc89a2c7f6adf187feb91558c80e21ea979b1ab24b0d216213c0d34"},"schema_version":"1.0","source":{"id":"cond-mat/0702019","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0702019","created_at":"2026-05-18T04:42:22Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0702019v1","created_at":"2026-05-18T04:42:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0702019","created_at":"2026-05-18T04:42:22Z"},{"alias_kind":"pith_short_12","alias_value":"B2XVI3L5CPKV","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"B2XVI3L5CPKVDRP7","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"B2XVI3L5","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:860b19ee5431aba56b10e0e62ac55f553a3a72266034095462d3dc9b4e3b8d3d","target":"graph","created_at":"2026-05-18T04:42:22Z","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":"In the vicinity of the Fermi energy, the band structure of graphene is well described by a Dirac equation. Impurities will generally induce both a scalar potential as well as a (fictitious) gauge field acting on the Dirac fermions. We show that the angular dependence of the zero-bias anomaly in the spatially resolved tunneling density of states (TDOS) around a particular impurity allows one to distinguish between these two contributions. Our predictions can be tested in scanning-tunneling-microscopy measurements on graphene.","authors_text":"Alex Kamenev, Eros Mariani, Felix von Oppen, Leonid I. Glazman","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-02-01T15:07:49Z","title":"Zero-bias anomaly in the tunneling density of states of graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0702019","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":"sha256:9ebcaec753bd92e0d2f5183c13aca632902694ddee10543d3f8fd61ab18e9330","target":"record","created_at":"2026-05-18T04:42:22Z","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":"90be5012129027bfff9d2433fec2c10ac8aa9db95a6d72d36ce27b0a5a889a87","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-02-01T15:07:49Z","title_canon_sha256":"aa912aa0bdc89a2c7f6adf187feb91558c80e21ea979b1ab24b0d216213c0d34"},"schema_version":"1.0","source":{"id":"cond-mat/0702019","kind":"arxiv","version":1}},"canonical_sha256":"0eaf546d7d13d551c5ff6352eca7ab0843965b4654d318cee4972e7219b3d40a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0eaf546d7d13d551c5ff6352eca7ab0843965b4654d318cee4972e7219b3d40a","first_computed_at":"2026-05-18T04:42:22.539652Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:42:22.539652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KBzKrnDeL0bC/wWXuGnhow651dP+iGwXuTp+PqlDDxvg48WZO3NHe3SS7f9GY43tqIjCiDjhzlaHeN/HcPCeDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:42:22.540275Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0702019","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ebcaec753bd92e0d2f5183c13aca632902694ddee10543d3f8fd61ab18e9330","sha256:860b19ee5431aba56b10e0e62ac55f553a3a72266034095462d3dc9b4e3b8d3d"],"state_sha256":"d7dfe7f8d02d0836f93a5ae43583d125a4d0382cd12444d613c04c9b385d6cf5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pm9wVc/AV/A9StgHGINdiR+uEhDhGQ0dkckRbz4JdBDYQGAyCRv1a5nhGVt3QorNbsU0V1oGqk+D/VwRfv1+Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T17:22:54.081366Z","bundle_sha256":"03ee965b8b7650ac0c74eef6aee4964a50ca0df45d2a2ff48fafe6281cd393f0"}}