{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:IHTZVRXJOE7SE7SQFCTO3JX2UI","short_pith_number":"pith:IHTZVRXJ","canonical_record":{"source":{"id":"2209.00643","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2022-09-01T17:55:18Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5deabddbb7cd3af33978b78ce60839b4d79e224e033f350f3897c8745766f2d3","abstract_canon_sha256":"6441ebb7ddfe1972e21a21cf115f7d7f54adc2df5875a60bbd183601f0d1f183"},"schema_version":"1.0"},"canonical_sha256":"41e79ac6e9713f227e5028a6eda6faa203526051d9a78b6ea36286f0c6804fb3","source":{"kind":"arxiv","id":"2209.00643","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.00643","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"arxiv_version","alias_value":"2209.00643v1","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.00643","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"pith_short_12","alias_value":"IHTZVRXJOE7S","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"pith_short_16","alias_value":"IHTZVRXJOE7SE7SQ","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"pith_short_8","alias_value":"IHTZVRXJ","created_at":"2026-07-05T04:53:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:IHTZVRXJOE7SE7SQFCTO3JX2UI","target":"record","payload":{"canonical_record":{"source":{"id":"2209.00643","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2022-09-01T17:55:18Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5deabddbb7cd3af33978b78ce60839b4d79e224e033f350f3897c8745766f2d3","abstract_canon_sha256":"6441ebb7ddfe1972e21a21cf115f7d7f54adc2df5875a60bbd183601f0d1f183"},"schema_version":"1.0"},"canonical_sha256":"41e79ac6e9713f227e5028a6eda6faa203526051d9a78b6ea36286f0c6804fb3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:53:52.340623Z","signature_b64":"WsJhbNoUYbww0Nb1yN573R7KrltalSxvzxTix76hFVHzrIG3R5TDrOZoiY7hvIiIP3D67+pIU69cFbldkv5TCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"41e79ac6e9713f227e5028a6eda6faa203526051d9a78b6ea36286f0c6804fb3","last_reissued_at":"2026-07-05T04:53:52.340174Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:53:52.340174Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.00643","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":"2026-07-05T04:53:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1lxSUhxvZ/CGk2a0NIdW2YLPpj+TlSXlwcAVLWtAmyyTRcBR7+VNcKkug0+VIsGCxwBqKq5qxY1bcMOnLe3gDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:07:57.325917Z"},"content_sha256":"1b2dbe5067e540f676db3f86839af60c7cdcf5b3cfc3de7474500ad069f84643","schema_version":"1.0","event_id":"sha256:1b2dbe5067e540f676db3f86839af60c7cdcf5b3cfc3de7474500ad069f84643"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:IHTZVRXJOE7SE7SQFCTO3JX2UI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Properties and device performance of BN thin films grown on GaN by pulsed laser deposition","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.app-ph","authors_text":"Abhijit Biswas, A. Glen Birdwell, Anand B. Puthirath, Chenxi Li, Dmitry A. Ruzmetov, Hanyu Zhu, Harikishan Kannan, Jingan Zhou, Jordan A. Hachtel, Kai Fu, Mahesh R. Neupane, Mingfei Xu, Pankaj B. Shah, Pulickel M. Ajayan, Robert Vajtai, Rui Xu, Sathvik Ajay Iyengar, Tia Gray, Tony Ivanov, Xiang Zhang, Yuji Zhao","submitted_at":"2022-09-01T17:55:18Z","abstract_excerpt":"Wide and ultrawide-bandgap semiconductors lie at the heart of next-generation high-power, high-frequency electronics. Here, we report the growth of ultrawide-bandgap boron nitride (BN) thin films on wide-bandgap gallium nitride (GaN) by pulsed laser deposition. Comprehensive spectroscopic (core level and valence band XPS, FTIR, Raman) and microscopic (AFM and STEM) characterizations confirm the growth of BN thin films on GaN. Optically, we observed that BN/GaN heterostructure is second-harmonic generation active. Moreover, we fabricated the BN/GaN heterostructure-based Schottky diode that demo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.00643","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/2209.00643/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":"2026-07-05T04:53:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A6xVA0wMKK6WYHW/+bk929ubAxNWGgwdeigSro5DJpit11txphOq5Uyk1iXMdGauwERZY2VPwB/LmysdwMRaBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:07:57.326291Z"},"content_sha256":"4880379757169be267dec9f8d934859f4daa0cb898512eb60c4e639c9c8a4451","schema_version":"1.0","event_id":"sha256:4880379757169be267dec9f8d934859f4daa0cb898512eb60c4e639c9c8a4451"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IHTZVRXJOE7SE7SQFCTO3JX2UI/bundle.json","state_url":"https://pith.science/pith/IHTZVRXJOE7SE7SQFCTO3JX2UI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IHTZVRXJOE7SE7SQFCTO3JX2UI/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":"2026-07-06T19:07:57Z","links":{"resolver":"https://pith.science/pith/IHTZVRXJOE7SE7SQFCTO3JX2UI","bundle":"https://pith.science/pith/IHTZVRXJOE7SE7SQFCTO3JX2UI/bundle.json","state":"https://pith.science/pith/IHTZVRXJOE7SE7SQFCTO3JX2UI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IHTZVRXJOE7SE7SQFCTO3JX2UI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:IHTZVRXJOE7SE7SQFCTO3JX2UI","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":"6441ebb7ddfe1972e21a21cf115f7d7f54adc2df5875a60bbd183601f0d1f183","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2022-09-01T17:55:18Z","title_canon_sha256":"5deabddbb7cd3af33978b78ce60839b4d79e224e033f350f3897c8745766f2d3"},"schema_version":"1.0","source":{"id":"2209.00643","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.00643","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"arxiv_version","alias_value":"2209.00643v1","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.00643","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"pith_short_12","alias_value":"IHTZVRXJOE7S","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"pith_short_16","alias_value":"IHTZVRXJOE7SE7SQ","created_at":"2026-07-05T04:53:52Z"},{"alias_kind":"pith_short_8","alias_value":"IHTZVRXJ","created_at":"2026-07-05T04:53:52Z"}],"graph_snapshots":[{"event_id":"sha256:4880379757169be267dec9f8d934859f4daa0cb898512eb60c4e639c9c8a4451","target":"graph","created_at":"2026-07-05T04:53:52Z","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/2209.00643/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Wide and ultrawide-bandgap semiconductors lie at the heart of next-generation high-power, high-frequency electronics. Here, we report the growth of ultrawide-bandgap boron nitride (BN) thin films on wide-bandgap gallium nitride (GaN) by pulsed laser deposition. Comprehensive spectroscopic (core level and valence band XPS, FTIR, Raman) and microscopic (AFM and STEM) characterizations confirm the growth of BN thin films on GaN. Optically, we observed that BN/GaN heterostructure is second-harmonic generation active. Moreover, we fabricated the BN/GaN heterostructure-based Schottky diode that demo","authors_text":"Abhijit Biswas, A. Glen Birdwell, Anand B. Puthirath, Chenxi Li, Dmitry A. Ruzmetov, Hanyu Zhu, Harikishan Kannan, Jingan Zhou, Jordan A. Hachtel, Kai Fu, Mahesh R. Neupane, Mingfei Xu, Pankaj B. Shah, Pulickel M. Ajayan, Robert Vajtai, Rui Xu, Sathvik Ajay Iyengar, Tia Gray, Tony Ivanov, Xiang Zhang, Yuji Zhao","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2022-09-01T17:55:18Z","title":"Properties and device performance of BN thin films grown on GaN by pulsed laser deposition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.00643","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":"sha256:1b2dbe5067e540f676db3f86839af60c7cdcf5b3cfc3de7474500ad069f84643","target":"record","created_at":"2026-07-05T04:53:52Z","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":"6441ebb7ddfe1972e21a21cf115f7d7f54adc2df5875a60bbd183601f0d1f183","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2022-09-01T17:55:18Z","title_canon_sha256":"5deabddbb7cd3af33978b78ce60839b4d79e224e033f350f3897c8745766f2d3"},"schema_version":"1.0","source":{"id":"2209.00643","kind":"arxiv","version":1}},"canonical_sha256":"41e79ac6e9713f227e5028a6eda6faa203526051d9a78b6ea36286f0c6804fb3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41e79ac6e9713f227e5028a6eda6faa203526051d9a78b6ea36286f0c6804fb3","first_computed_at":"2026-07-05T04:53:52.340174Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:53:52.340174Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WsJhbNoUYbww0Nb1yN573R7KrltalSxvzxTix76hFVHzrIG3R5TDrOZoiY7hvIiIP3D67+pIU69cFbldkv5TCw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:53:52.340623Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.00643","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b2dbe5067e540f676db3f86839af60c7cdcf5b3cfc3de7474500ad069f84643","sha256:4880379757169be267dec9f8d934859f4daa0cb898512eb60c4e639c9c8a4451"],"state_sha256":"a924a09dac1a30ccdf986e4dc9091d6a1a802d23683fae35dfa6b38393ece4c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1kIuJltDi5TWldsSaW8hdCDxZ+1Fybw1LUnsSM4cVu3QkfmqwbSJyZ8sn23Ozhlft/X+CtDoBc9eqqAfe0NpCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T19:07:57.328376Z","bundle_sha256":"cf7380c960b910d1d23df9530d7411146e1629f1303d1050cc80258a5b3e985c"}}