{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:INFFBTE3DIYOBHJXVIEWWLKDY3","short_pith_number":"pith:INFFBTE3","canonical_record":{"source":{"id":"1302.3942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-02-16T08:04:23Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"f4e07904808f94e2ffdfe5c6da8189d212f0d483715a700c6ef6c580488539de","abstract_canon_sha256":"e59fca155d5da70b7ecc47faf38cc7957d8c70141841d6ede26e1e841ea506c8"},"schema_version":"1.0"},"canonical_sha256":"434a50cc9b1a30e09d37aa096b2d43c6e19e3a549aa3e8069be1b130cd26d8df","source":{"kind":"arxiv","id":"1302.3942","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.3942","created_at":"2026-05-18T03:05:01Z"},{"alias_kind":"arxiv_version","alias_value":"1302.3942v1","created_at":"2026-05-18T03:05:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.3942","created_at":"2026-05-18T03:05:01Z"},{"alias_kind":"pith_short_12","alias_value":"INFFBTE3DIYO","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"INFFBTE3DIYOBHJX","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"INFFBTE3","created_at":"2026-05-18T12:27:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:INFFBTE3DIYOBHJXVIEWWLKDY3","target":"record","payload":{"canonical_record":{"source":{"id":"1302.3942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-02-16T08:04:23Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"f4e07904808f94e2ffdfe5c6da8189d212f0d483715a700c6ef6c580488539de","abstract_canon_sha256":"e59fca155d5da70b7ecc47faf38cc7957d8c70141841d6ede26e1e841ea506c8"},"schema_version":"1.0"},"canonical_sha256":"434a50cc9b1a30e09d37aa096b2d43c6e19e3a549aa3e8069be1b130cd26d8df","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:05:01.531195Z","signature_b64":"j+jyy1SWODoBed/l9viyWvoSnA3cNIHW+fR6YNNeFw3sfUuthW1q/xAvDwIVfBfY2pTAnC9N1+MqtJxlHweNCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"434a50cc9b1a30e09d37aa096b2d43c6e19e3a549aa3e8069be1b130cd26d8df","last_reissued_at":"2026-05-18T03:05:01.530461Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:05:01.530461Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.3942","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":"2026-05-18T03:05:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WWhHdVTTO4G/6R7fV7Uz71Iwdd3DSyK2KGOUQpSiepYYfIXad/DTx6Sy6WRFRmHfKw/57zfpCnygThrdsFe7Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T22:50:22.496305Z"},"content_sha256":"f80fa6ff37d9547f5d94278977e1204a6596d4fccc4879b475a76be9d14f5042","schema_version":"1.0","event_id":"sha256:f80fa6ff37d9547f5d94278977e1204a6596d4fccc4879b475a76be9d14f5042"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:INFFBTE3DIYOBHJXVIEWWLKDY3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unipolar Vertical Transport in GaN/AlGaN/GaN Heterostructures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"D. N. Nath, P. S. Park, S. Rajan, Z. C. Yang","submitted_at":"2013-02-16T08:04:23Z","abstract_excerpt":"In this letter, we report on unipolar vertical transport characteristics in c-plane GaN/AlGaN/GaN heterostructures. Vertical current in heterostructures with random alloy barriers was found to be independent of dislocation density and heterostructure barrier height, and significantly higher than theoretical estimates. Percolation-based transport due to random alloy fluctuations in the ternary AlGaN is suggested as the dominant transport mechanism, and confirmed through experiments showing that non-random or digital AlGaN alloys and polarization-engineered binary GaN barriers can eliminate perc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.3942","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":"2026-05-18T03:05:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cNm4izFk658Np6FqKc2ulCVYQlLzWG/0plMRADLyuomqDEGUovfXiSpUazMbqHddY/MLUL4G3YbKDzLIBhIIDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T22:50:22.496782Z"},"content_sha256":"999915e462c3d4f63078b70077886b80962c862af897b4ca07d7621bc7558d8b","schema_version":"1.0","event_id":"sha256:999915e462c3d4f63078b70077886b80962c862af897b4ca07d7621bc7558d8b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/INFFBTE3DIYOBHJXVIEWWLKDY3/bundle.json","state_url":"https://pith.science/pith/INFFBTE3DIYOBHJXVIEWWLKDY3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/INFFBTE3DIYOBHJXVIEWWLKDY3/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":"2026-06-25T22:50:22Z","links":{"resolver":"https://pith.science/pith/INFFBTE3DIYOBHJXVIEWWLKDY3","bundle":"https://pith.science/pith/INFFBTE3DIYOBHJXVIEWWLKDY3/bundle.json","state":"https://pith.science/pith/INFFBTE3DIYOBHJXVIEWWLKDY3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/INFFBTE3DIYOBHJXVIEWWLKDY3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:INFFBTE3DIYOBHJXVIEWWLKDY3","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":"e59fca155d5da70b7ecc47faf38cc7957d8c70141841d6ede26e1e841ea506c8","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-02-16T08:04:23Z","title_canon_sha256":"f4e07904808f94e2ffdfe5c6da8189d212f0d483715a700c6ef6c580488539de"},"schema_version":"1.0","source":{"id":"1302.3942","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.3942","created_at":"2026-05-18T03:05:01Z"},{"alias_kind":"arxiv_version","alias_value":"1302.3942v1","created_at":"2026-05-18T03:05:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.3942","created_at":"2026-05-18T03:05:01Z"},{"alias_kind":"pith_short_12","alias_value":"INFFBTE3DIYO","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"INFFBTE3DIYOBHJX","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"INFFBTE3","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:999915e462c3d4f63078b70077886b80962c862af897b4ca07d7621bc7558d8b","target":"graph","created_at":"2026-05-18T03:05:01Z","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 this letter, we report on unipolar vertical transport characteristics in c-plane GaN/AlGaN/GaN heterostructures. Vertical current in heterostructures with random alloy barriers was found to be independent of dislocation density and heterostructure barrier height, and significantly higher than theoretical estimates. Percolation-based transport due to random alloy fluctuations in the ternary AlGaN is suggested as the dominant transport mechanism, and confirmed through experiments showing that non-random or digital AlGaN alloys and polarization-engineered binary GaN barriers can eliminate perc","authors_text":"D. N. Nath, P. S. Park, S. Rajan, Z. C. Yang","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-02-16T08:04:23Z","title":"Unipolar Vertical Transport in GaN/AlGaN/GaN Heterostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.3942","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:f80fa6ff37d9547f5d94278977e1204a6596d4fccc4879b475a76be9d14f5042","target":"record","created_at":"2026-05-18T03:05:01Z","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":"e59fca155d5da70b7ecc47faf38cc7957d8c70141841d6ede26e1e841ea506c8","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-02-16T08:04:23Z","title_canon_sha256":"f4e07904808f94e2ffdfe5c6da8189d212f0d483715a700c6ef6c580488539de"},"schema_version":"1.0","source":{"id":"1302.3942","kind":"arxiv","version":1}},"canonical_sha256":"434a50cc9b1a30e09d37aa096b2d43c6e19e3a549aa3e8069be1b130cd26d8df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"434a50cc9b1a30e09d37aa096b2d43c6e19e3a549aa3e8069be1b130cd26d8df","first_computed_at":"2026-05-18T03:05:01.530461Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:05:01.530461Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j+jyy1SWODoBed/l9viyWvoSnA3cNIHW+fR6YNNeFw3sfUuthW1q/xAvDwIVfBfY2pTAnC9N1+MqtJxlHweNCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:05:01.531195Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.3942","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f80fa6ff37d9547f5d94278977e1204a6596d4fccc4879b475a76be9d14f5042","sha256:999915e462c3d4f63078b70077886b80962c862af897b4ca07d7621bc7558d8b"],"state_sha256":"d9446e2b80023755cfb68df07165aabb06b4b76a395aa1e94337f0e309f7608f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MyTlsdadPdnGb3e35CREl0uTekYiHxUEzoO639PYehpMCVn1WAPfbaCmwzqCBTwKC0/ikAFfyw0cvAUoRO8BDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T22:50:22.499117Z","bundle_sha256":"157635776e365025c9c7e3ef13c72acc893204a1331d236a62f666032b8abfa7"}}