{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:2VCY5S7A5ZC2USUKJW3LZHGE4K","short_pith_number":"pith:2VCY5S7A","canonical_record":{"source":{"id":"1812.01123","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-12-03T23:01:42Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9b2e38cf51d98c3c6730306f0d04bc0ce4ed2db3a302e33e80fee6cdcc8630ef","abstract_canon_sha256":"94d0203f3d599e1ac292cfe95203366e9cdf43f38e5b32ee1044e3e33eff2737"},"schema_version":"1.0"},"canonical_sha256":"d5458ecbe0ee45aa4a8a4db6bc9cc4e28a7df2399df6b828e1888c2fe33416ef","source":{"kind":"arxiv","id":"1812.01123","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.01123","created_at":"2026-05-17T23:57:30Z"},{"alias_kind":"arxiv_version","alias_value":"1812.01123v1","created_at":"2026-05-17T23:57:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.01123","created_at":"2026-05-17T23:57:30Z"},{"alias_kind":"pith_short_12","alias_value":"2VCY5S7A5ZC2","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2VCY5S7A5ZC2USUK","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2VCY5S7A","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:2VCY5S7A5ZC2USUKJW3LZHGE4K","target":"record","payload":{"canonical_record":{"source":{"id":"1812.01123","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-12-03T23:01:42Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9b2e38cf51d98c3c6730306f0d04bc0ce4ed2db3a302e33e80fee6cdcc8630ef","abstract_canon_sha256":"94d0203f3d599e1ac292cfe95203366e9cdf43f38e5b32ee1044e3e33eff2737"},"schema_version":"1.0"},"canonical_sha256":"d5458ecbe0ee45aa4a8a4db6bc9cc4e28a7df2399df6b828e1888c2fe33416ef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:30.657423Z","signature_b64":"JfuU/IuW1tPO+5t9o4SM1Q9E8X2XtRjfFGnyDiyMS8ZLP60VTtOOi6erASuwlwjBAYEQG6DjnnP4hWvXIHcrBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5458ecbe0ee45aa4a8a4db6bc9cc4e28a7df2399df6b828e1888c2fe33416ef","last_reissued_at":"2026-05-17T23:57:30.656720Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:30.656720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.01123","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":"2026-05-17T23:57:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vO0ddg13kQUZo5mXc3rnOpAyfbIFEIai5n2aHH318w0rVoDgOp40xL7gsAaeP4sK/tFPfSOn0DDslD62CI9mAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T20:42:03.329091Z"},"content_sha256":"12193085f1e3fc31958ec32bf174b54899e9e436a7841096f4a595168f6ba598","schema_version":"1.0","event_id":"sha256:12193085f1e3fc31958ec32bf174b54899e9e436a7841096f4a595168f6ba598"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:2VCY5S7A5ZC2USUKJW3LZHGE4K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Negative differential conductance effect and electrical anisotropy of 2D ZrB2 monolayers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Chengyan Liu, Hui Wang, Jutao Jiao, Kun Wang, Ruqian Wu, Tianxing Wang, Xuenian Chen, Yipeng An, Yusheng Hou","submitted_at":"2018-12-03T23:01:42Z","abstract_excerpt":"Two-dimensional (2D) metal-diboride ZrB2 monolayers was predicted theoretically as a stable new electronic material [A. Lopez-Bezanilla, Phys. Rev. Mater., 2018, 2, 011002 (R)]. Here, we investigate its electronic transport properties along the zigzag (z-ZrB2) and armchair (a-ZrB2) directions, using the density functional theory and non-equilibrium Green's function methods. Under low biases, the 2D ZrB2 shows a similar electrical transport along zigzag and armchair directions as electric current propagates mostly via the metallic Zr-Zr bonds. However, it shows an electrical anistropy under hig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.01123","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":"2026-05-17T23:57:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z5W02tkI6UGCqxUcX2ZZ1fuTJMxC1Wn67ZBrc8DwxvV26RxmVgV57vtDVe4uGnRJRFXRTYY8XgL6+xYsZWPQAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T20:42:03.329760Z"},"content_sha256":"3bf4190744e917c0ee9290615d247d75e159f846c7daaf43cf456444799e5544","schema_version":"1.0","event_id":"sha256:3bf4190744e917c0ee9290615d247d75e159f846c7daaf43cf456444799e5544"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2VCY5S7A5ZC2USUKJW3LZHGE4K/bundle.json","state_url":"https://pith.science/pith/2VCY5S7A5ZC2USUKJW3LZHGE4K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2VCY5S7A5ZC2USUKJW3LZHGE4K/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":"2026-05-23T20:42:03Z","links":{"resolver":"https://pith.science/pith/2VCY5S7A5ZC2USUKJW3LZHGE4K","bundle":"https://pith.science/pith/2VCY5S7A5ZC2USUKJW3LZHGE4K/bundle.json","state":"https://pith.science/pith/2VCY5S7A5ZC2USUKJW3LZHGE4K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2VCY5S7A5ZC2USUKJW3LZHGE4K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2VCY5S7A5ZC2USUKJW3LZHGE4K","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":"94d0203f3d599e1ac292cfe95203366e9cdf43f38e5b32ee1044e3e33eff2737","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-12-03T23:01:42Z","title_canon_sha256":"9b2e38cf51d98c3c6730306f0d04bc0ce4ed2db3a302e33e80fee6cdcc8630ef"},"schema_version":"1.0","source":{"id":"1812.01123","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.01123","created_at":"2026-05-17T23:57:30Z"},{"alias_kind":"arxiv_version","alias_value":"1812.01123v1","created_at":"2026-05-17T23:57:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.01123","created_at":"2026-05-17T23:57:30Z"},{"alias_kind":"pith_short_12","alias_value":"2VCY5S7A5ZC2","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2VCY5S7A5ZC2USUK","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2VCY5S7A","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:3bf4190744e917c0ee9290615d247d75e159f846c7daaf43cf456444799e5544","target":"graph","created_at":"2026-05-17T23:57:30Z","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":"Two-dimensional (2D) metal-diboride ZrB2 monolayers was predicted theoretically as a stable new electronic material [A. Lopez-Bezanilla, Phys. Rev. Mater., 2018, 2, 011002 (R)]. Here, we investigate its electronic transport properties along the zigzag (z-ZrB2) and armchair (a-ZrB2) directions, using the density functional theory and non-equilibrium Green's function methods. Under low biases, the 2D ZrB2 shows a similar electrical transport along zigzag and armchair directions as electric current propagates mostly via the metallic Zr-Zr bonds. However, it shows an electrical anistropy under hig","authors_text":"Chengyan Liu, Hui Wang, Jutao Jiao, Kun Wang, Ruqian Wu, Tianxing Wang, Xuenian Chen, Yipeng An, Yusheng Hou","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-12-03T23:01:42Z","title":"Negative differential conductance effect and electrical anisotropy of 2D ZrB2 monolayers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.01123","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":"sha256:12193085f1e3fc31958ec32bf174b54899e9e436a7841096f4a595168f6ba598","target":"record","created_at":"2026-05-17T23:57:30Z","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":"94d0203f3d599e1ac292cfe95203366e9cdf43f38e5b32ee1044e3e33eff2737","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-12-03T23:01:42Z","title_canon_sha256":"9b2e38cf51d98c3c6730306f0d04bc0ce4ed2db3a302e33e80fee6cdcc8630ef"},"schema_version":"1.0","source":{"id":"1812.01123","kind":"arxiv","version":1}},"canonical_sha256":"d5458ecbe0ee45aa4a8a4db6bc9cc4e28a7df2399df6b828e1888c2fe33416ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5458ecbe0ee45aa4a8a4db6bc9cc4e28a7df2399df6b828e1888c2fe33416ef","first_computed_at":"2026-05-17T23:57:30.656720Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:30.656720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JfuU/IuW1tPO+5t9o4SM1Q9E8X2XtRjfFGnyDiyMS8ZLP60VTtOOi6erASuwlwjBAYEQG6DjnnP4hWvXIHcrBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:30.657423Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.01123","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:12193085f1e3fc31958ec32bf174b54899e9e436a7841096f4a595168f6ba598","sha256:3bf4190744e917c0ee9290615d247d75e159f846c7daaf43cf456444799e5544"],"state_sha256":"ed94274671accec5a36b2de43a749ebac7a57e5e805267df088a0ff5e4499920"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZwaYAphcph6kgfFNhejm29CjybEPTOSwd0jOY5NeVBYWzcs2dqYqnOagn/2LQX+2tF38H8LjC7Ls88vL6iAzDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T20:42:03.333205Z","bundle_sha256":"72c3422515b09b9919652deafdd5e5fb398a9bee7b55d52a37383fb3014e5a83"}}