{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:AHZEKGHAPQMA5IL5YFAYLIE5KJ","short_pith_number":"pith:AHZEKGHA","canonical_record":{"source":{"id":"2211.04014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-11-08T05:14:36Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"a7364fd8d35093d05693c5eef06368559c88165b52ee73da4a49e5e30763f022","abstract_canon_sha256":"4d5a294a8bc4a397046e80e9ce3c1b5ab0ad373506ef2afde3279a8fec38f8dd"},"schema_version":"1.0"},"canonical_sha256":"01f24518e07c180ea17dc14185a09d527eb594d555ad8711064254988eb0ab52","source":{"kind":"arxiv","id":"2211.04014","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.04014","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"arxiv_version","alias_value":"2211.04014v2","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.04014","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"pith_short_12","alias_value":"AHZEKGHAPQMA","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"pith_short_16","alias_value":"AHZEKGHAPQMA5IL5","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"pith_short_8","alias_value":"AHZEKGHA","created_at":"2026-07-05T11:14:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:AHZEKGHAPQMA5IL5YFAYLIE5KJ","target":"record","payload":{"canonical_record":{"source":{"id":"2211.04014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-11-08T05:14:36Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"a7364fd8d35093d05693c5eef06368559c88165b52ee73da4a49e5e30763f022","abstract_canon_sha256":"4d5a294a8bc4a397046e80e9ce3c1b5ab0ad373506ef2afde3279a8fec38f8dd"},"schema_version":"1.0"},"canonical_sha256":"01f24518e07c180ea17dc14185a09d527eb594d555ad8711064254988eb0ab52","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:14:22.448447Z","signature_b64":"vz+De6N1cyA0N4fqDQMGbfTImgE3zFrrqEe4+u1g4MxEEYLS68qoEZlveFMIeWFEXkcmmADhu91WLmy/gQxICA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01f24518e07c180ea17dc14185a09d527eb594d555ad8711064254988eb0ab52","last_reissued_at":"2026-07-05T11:14:22.447978Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:14:22.447978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2211.04014","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:14:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XcdbkvbBEJGeK0oqFT+V2N8r58epK2q8RSoBPcNwnxfmlDV2qD5nYVDqnM4Y8Vz2IjBfUgMXIfslhBWhegC4Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T08:51:20.752178Z"},"content_sha256":"bb201095e27cd90ae3d6176021e1ef58f8f1b142fbbb9f45431a85b84c6c5877","schema_version":"1.0","event_id":"sha256:bb201095e27cd90ae3d6176021e1ef58f8f1b142fbbb9f45431a85b84c6c5877"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:AHZEKGHAPQMA5IL5YFAYLIE5KJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Visualization of Strain-Induced Landau Levels in a Graphene - Black Phosphorus Heterostructure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Aaron Bostwick, Chi Xuan Trang, Chris Jozwiak, Eli Rotenberg, Jiong Lu, Mark T. Edmonds, Michael S. Fuhrer, Na Hyun Jo, Pin Lyu, Qile Li, Thi-Hai-Yen Vu","submitted_at":"2022-11-08T05:14:36Z","abstract_excerpt":"Strain-induced pseudo magnetic fields offer the possibility of realizing zero magnetic field Quantum Hall effect in graphene, possibly up to room temperature, representing a promising avenue for lossless charge transport applications. Strain engineering on graphene has been achieved via random nanobubbles or artificial nanostructures on the substrate, but the highly localized and non-uniform pseudomagnetic fields can make spectroscopic probes of electronic structure difficult. Heterostructure engineering offers an alternative approach: By stacking graphene on top of another van der Waals mater"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.04014","kind":"arxiv","version":2},"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/2211.04014/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":"2026-07-05T11:14:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RNlo+14DSs2c9j0ISYFEMGk6VCqwNndWKHoP83FneshR/RA5cYS58JY7SueRq2MpjhBp8vNgE/KD2oSioA1JAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T08:51:20.752670Z"},"content_sha256":"07d3721f442b9e039e61043a46422ed3e99323173d359bb0500461f124f98748","schema_version":"1.0","event_id":"sha256:07d3721f442b9e039e61043a46422ed3e99323173d359bb0500461f124f98748"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AHZEKGHAPQMA5IL5YFAYLIE5KJ/bundle.json","state_url":"https://pith.science/pith/AHZEKGHAPQMA5IL5YFAYLIE5KJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AHZEKGHAPQMA5IL5YFAYLIE5KJ/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":"2026-08-22T08:51:20Z","links":{"resolver":"https://pith.science/pith/AHZEKGHAPQMA5IL5YFAYLIE5KJ","bundle":"https://pith.science/pith/AHZEKGHAPQMA5IL5YFAYLIE5KJ/bundle.json","state":"https://pith.science/pith/AHZEKGHAPQMA5IL5YFAYLIE5KJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AHZEKGHAPQMA5IL5YFAYLIE5KJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:AHZEKGHAPQMA5IL5YFAYLIE5KJ","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":"4d5a294a8bc4a397046e80e9ce3c1b5ab0ad373506ef2afde3279a8fec38f8dd","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-11-08T05:14:36Z","title_canon_sha256":"a7364fd8d35093d05693c5eef06368559c88165b52ee73da4a49e5e30763f022"},"schema_version":"1.0","source":{"id":"2211.04014","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.04014","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"arxiv_version","alias_value":"2211.04014v2","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.04014","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"pith_short_12","alias_value":"AHZEKGHAPQMA","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"pith_short_16","alias_value":"AHZEKGHAPQMA5IL5","created_at":"2026-07-05T11:14:22Z"},{"alias_kind":"pith_short_8","alias_value":"AHZEKGHA","created_at":"2026-07-05T11:14:22Z"}],"graph_snapshots":[{"event_id":"sha256:07d3721f442b9e039e61043a46422ed3e99323173d359bb0500461f124f98748","target":"graph","created_at":"2026-07-05T11:14:22Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2211.04014/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Strain-induced pseudo magnetic fields offer the possibility of realizing zero magnetic field Quantum Hall effect in graphene, possibly up to room temperature, representing a promising avenue for lossless charge transport applications. Strain engineering on graphene has been achieved via random nanobubbles or artificial nanostructures on the substrate, but the highly localized and non-uniform pseudomagnetic fields can make spectroscopic probes of electronic structure difficult. Heterostructure engineering offers an alternative approach: By stacking graphene on top of another van der Waals mater","authors_text":"Aaron Bostwick, Chi Xuan Trang, Chris Jozwiak, Eli Rotenberg, Jiong Lu, Mark T. Edmonds, Michael S. Fuhrer, Na Hyun Jo, Pin Lyu, Qile Li, Thi-Hai-Yen Vu","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-11-08T05:14:36Z","title":"Visualization of Strain-Induced Landau Levels in a Graphene - Black Phosphorus Heterostructure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.04014","kind":"arxiv","version":2},"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:bb201095e27cd90ae3d6176021e1ef58f8f1b142fbbb9f45431a85b84c6c5877","target":"record","created_at":"2026-07-05T11:14:22Z","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":"4d5a294a8bc4a397046e80e9ce3c1b5ab0ad373506ef2afde3279a8fec38f8dd","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-11-08T05:14:36Z","title_canon_sha256":"a7364fd8d35093d05693c5eef06368559c88165b52ee73da4a49e5e30763f022"},"schema_version":"1.0","source":{"id":"2211.04014","kind":"arxiv","version":2}},"canonical_sha256":"01f24518e07c180ea17dc14185a09d527eb594d555ad8711064254988eb0ab52","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01f24518e07c180ea17dc14185a09d527eb594d555ad8711064254988eb0ab52","first_computed_at":"2026-07-05T11:14:22.447978Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:14:22.447978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vz+De6N1cyA0N4fqDQMGbfTImgE3zFrrqEe4+u1g4MxEEYLS68qoEZlveFMIeWFEXkcmmADhu91WLmy/gQxICA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:14:22.448447Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.04014","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb201095e27cd90ae3d6176021e1ef58f8f1b142fbbb9f45431a85b84c6c5877","sha256:07d3721f442b9e039e61043a46422ed3e99323173d359bb0500461f124f98748"],"state_sha256":"c0e4a95fdb343c15d91710d3c39bf9ac47d000301862da6f33c84001bb2840e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xZiqkWg/8cYJQU0kJH/4F4MW7kZcIeLV3qm4SZ1/d2O+K3ySWuecBk78G0tyFCi7x84VOABfwve3cXc9XuZxDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T08:51:20.757172Z","bundle_sha256":"0dcb54878fe76951c65ebfcb824dfafe380f4b920bbfd9069f7871ac038361d2"}}