{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:VHAUKPZDKRB2NMSFK6NQHEJ3ES","short_pith_number":"pith:VHAUKPZD","canonical_record":{"source":{"id":"2103.03242","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-03-04T18:59:08Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"title_canon_sha256":"f2e3324d79d2d5f0761e4cfdf4945d5e7fe6ad14c1af0cedc2d1601e72b0ff6c","abstract_canon_sha256":"d7c53bbc63f0ba9292038c3c0f2a3aeaf7d97dd43b6f7f1f55d5fe0eaee36b93"},"schema_version":"1.0"},"canonical_sha256":"a9c1453f235443a6b245579b03913b24a1bc7c29d0dac61b4a80691e71a5bd5f","source":{"kind":"arxiv","id":"2103.03242","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.03242","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"arxiv_version","alias_value":"2103.03242v1","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.03242","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"pith_short_12","alias_value":"VHAUKPZDKRB2","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"pith_short_16","alias_value":"VHAUKPZDKRB2NMSF","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"pith_short_8","alias_value":"VHAUKPZD","created_at":"2026-07-05T02:52:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:VHAUKPZDKRB2NMSFK6NQHEJ3ES","target":"record","payload":{"canonical_record":{"source":{"id":"2103.03242","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-03-04T18:59:08Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"title_canon_sha256":"f2e3324d79d2d5f0761e4cfdf4945d5e7fe6ad14c1af0cedc2d1601e72b0ff6c","abstract_canon_sha256":"d7c53bbc63f0ba9292038c3c0f2a3aeaf7d97dd43b6f7f1f55d5fe0eaee36b93"},"schema_version":"1.0"},"canonical_sha256":"a9c1453f235443a6b245579b03913b24a1bc7c29d0dac61b4a80691e71a5bd5f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:52:28.118957Z","signature_b64":"jI1Z4t1OEKZ6tuOO2QvTeBndvHb65WkJq9PWKPttGTbxNh37QLiUJ/v67pxPm7yBC4T10/U6GKvRNo6/FaYPAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9c1453f235443a6b245579b03913b24a1bc7c29d0dac61b4a80691e71a5bd5f","last_reissued_at":"2026-07-05T02:52:28.118409Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:52:28.118409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.03242","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":"2026-07-05T02:52:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YJ4dXSNFto8NVK/E+If7ggIHTwNIJb2HAW4/LsUFegtER8Hb1rb0m5MmzBtDJK68gAB96RMCse+TrtkhuXFZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:39:51.130525Z"},"content_sha256":"31e54734f54fd9b0248d7f852cdf9c2bc98b849209d0d2103bd0052165b80782","schema_version":"1.0","event_id":"sha256:31e54734f54fd9b0248d7f852cdf9c2bc98b849209d0d2103bd0052165b80782"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:VHAUKPZDKRB2NMSFK6NQHEJ3ES","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spatiotemporal Imaging of Thickness-Induced Band Bending Junctions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","physics.app-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Aaron Bostwick, Ahmed Zewail, Andrey Krayev, Artur R. Davoyan, Bolin Liao, Chris Jozwiak, Deep Jariwala, Eli Rotenberg, Harry A. Atwater, Joeson Wong, Kiyoung Jo","submitted_at":"2021-03-04T18:59:08Z","abstract_excerpt":"Van der Waals materials exhibit naturally passivated surfaces and can form versatile heterostructures, enabling observation of carrier transport mechanisms not seen in three-dimensional materials. Here we report observation of a \"band bending junction\", a new type of semiconductor homojunction whose surface potential landscape depends solely on a difference in thickness between the two semiconductor regions atop a buried heterojunction interface. Using MoS2 on Au to form a buried heterojunction interface, we find that lateral surface potential differences can arise in MoS2 from the local exten"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.03242","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/2103.03242/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":"2026-07-05T02:52:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s3hJ5WjlE/T1BTs2kp/RmhrtkMZZlJ3q8YA6WbzWH5SttKPB5RG4anGwxqUHjWqbuP2JmjbfCoBYp+ER/3fBAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:39:51.131371Z"},"content_sha256":"e7187751b8b8eb16455a7cc291fbb9239a04c565d4f17a5e982527878bfab4f1","schema_version":"1.0","event_id":"sha256:e7187751b8b8eb16455a7cc291fbb9239a04c565d4f17a5e982527878bfab4f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VHAUKPZDKRB2NMSFK6NQHEJ3ES/bundle.json","state_url":"https://pith.science/pith/VHAUKPZDKRB2NMSFK6NQHEJ3ES/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VHAUKPZDKRB2NMSFK6NQHEJ3ES/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":"2026-08-03T20:39:51Z","links":{"resolver":"https://pith.science/pith/VHAUKPZDKRB2NMSFK6NQHEJ3ES","bundle":"https://pith.science/pith/VHAUKPZDKRB2NMSFK6NQHEJ3ES/bundle.json","state":"https://pith.science/pith/VHAUKPZDKRB2NMSFK6NQHEJ3ES/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VHAUKPZDKRB2NMSFK6NQHEJ3ES/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:VHAUKPZDKRB2NMSFK6NQHEJ3ES","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":"d7c53bbc63f0ba9292038c3c0f2a3aeaf7d97dd43b6f7f1f55d5fe0eaee36b93","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-03-04T18:59:08Z","title_canon_sha256":"f2e3324d79d2d5f0761e4cfdf4945d5e7fe6ad14c1af0cedc2d1601e72b0ff6c"},"schema_version":"1.0","source":{"id":"2103.03242","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.03242","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"arxiv_version","alias_value":"2103.03242v1","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.03242","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"pith_short_12","alias_value":"VHAUKPZDKRB2","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"pith_short_16","alias_value":"VHAUKPZDKRB2NMSF","created_at":"2026-07-05T02:52:28Z"},{"alias_kind":"pith_short_8","alias_value":"VHAUKPZD","created_at":"2026-07-05T02:52:28Z"}],"graph_snapshots":[{"event_id":"sha256:e7187751b8b8eb16455a7cc291fbb9239a04c565d4f17a5e982527878bfab4f1","target":"graph","created_at":"2026-07-05T02:52:28Z","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/2103.03242/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Van der Waals materials exhibit naturally passivated surfaces and can form versatile heterostructures, enabling observation of carrier transport mechanisms not seen in three-dimensional materials. Here we report observation of a \"band bending junction\", a new type of semiconductor homojunction whose surface potential landscape depends solely on a difference in thickness between the two semiconductor regions atop a buried heterojunction interface. Using MoS2 on Au to form a buried heterojunction interface, we find that lateral surface potential differences can arise in MoS2 from the local exten","authors_text":"Aaron Bostwick, Ahmed Zewail, Andrey Krayev, Artur R. Davoyan, Bolin Liao, Chris Jozwiak, Deep Jariwala, Eli Rotenberg, Harry A. Atwater, Joeson Wong, Kiyoung Jo","cross_cats":["cond-mat.mtrl-sci","physics.app-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-03-04T18:59:08Z","title":"Spatiotemporal Imaging of Thickness-Induced Band Bending Junctions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.03242","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":"sha256:31e54734f54fd9b0248d7f852cdf9c2bc98b849209d0d2103bd0052165b80782","target":"record","created_at":"2026-07-05T02:52:28Z","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":"d7c53bbc63f0ba9292038c3c0f2a3aeaf7d97dd43b6f7f1f55d5fe0eaee36b93","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-03-04T18:59:08Z","title_canon_sha256":"f2e3324d79d2d5f0761e4cfdf4945d5e7fe6ad14c1af0cedc2d1601e72b0ff6c"},"schema_version":"1.0","source":{"id":"2103.03242","kind":"arxiv","version":1}},"canonical_sha256":"a9c1453f235443a6b245579b03913b24a1bc7c29d0dac61b4a80691e71a5bd5f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9c1453f235443a6b245579b03913b24a1bc7c29d0dac61b4a80691e71a5bd5f","first_computed_at":"2026-07-05T02:52:28.118409Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:52:28.118409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jI1Z4t1OEKZ6tuOO2QvTeBndvHb65WkJq9PWKPttGTbxNh37QLiUJ/v67pxPm7yBC4T10/U6GKvRNo6/FaYPAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:52:28.118957Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.03242","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:31e54734f54fd9b0248d7f852cdf9c2bc98b849209d0d2103bd0052165b80782","sha256:e7187751b8b8eb16455a7cc291fbb9239a04c565d4f17a5e982527878bfab4f1"],"state_sha256":"b4624731db2e84312090509f204ebbcc09fb1acf1c36b06ff406dcba91c43bec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kEvoD/0Mv55/RfiAxbcovsd2FH1CIerHOWZE0RdAP0vUmFvkl/lNidrhb+vlONp+heZqwDO6oF6y1xIX36PeCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T20:39:51.143794Z","bundle_sha256":"0730fe323564bd3af9023b99aa128bd2c38fc4d3f9844823cbe33c5d955192a9"}}