{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:RGHZRJMFBTPYPKSN2RRICUJCKP","short_pith_number":"pith:RGHZRJMF","canonical_record":{"source":{"id":"1812.05729","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-13T23:18:32Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"46d52c284465775f847435a53fabb9ddedc6aa5dd9672e4403edad8f096d58a9","abstract_canon_sha256":"d6804c45fb89a3546c341955effee782a4dda952c49adf283f82f9b0a827c335"},"schema_version":"1.0"},"canonical_sha256":"898f98a5850cdf87aa4dd46281512253d383fb31e7afeff21b731f7686a565f1","source":{"kind":"arxiv","id":"1812.05729","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.05729","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"arxiv_version","alias_value":"1812.05729v1","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.05729","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"pith_short_12","alias_value":"RGHZRJMFBTPY","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RGHZRJMFBTPYPKSN","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RGHZRJMF","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:RGHZRJMFBTPYPKSN2RRICUJCKP","target":"record","payload":{"canonical_record":{"source":{"id":"1812.05729","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-13T23:18:32Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"46d52c284465775f847435a53fabb9ddedc6aa5dd9672e4403edad8f096d58a9","abstract_canon_sha256":"d6804c45fb89a3546c341955effee782a4dda952c49adf283f82f9b0a827c335"},"schema_version":"1.0"},"canonical_sha256":"898f98a5850cdf87aa4dd46281512253d383fb31e7afeff21b731f7686a565f1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:18.397303Z","signature_b64":"A8rZHy4e+CsOsTMoN3M6SNPIr17eMJdby225+LVLRwVzzx40mVg6BGBFLKqJXWcjYG8bAbZsQQyoWqNzxMN+DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"898f98a5850cdf87aa4dd46281512253d383fb31e7afeff21b731f7686a565f1","last_reissued_at":"2026-05-17T23:58:18.396760Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:18.396760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.05729","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":"2026-05-17T23:58:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KRNYsruh3xLaweaZddt0joZIgsrbDOusM5w8mVaHXf4gbJAJwLyXpvdZMKO94eKwawfoiMArUeYEgIWCzVw+Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:35:32.497574Z"},"content_sha256":"6b662effe63e0887177610201c438ed1c9e073cb5fcedc8aa1c23df14012eb65","schema_version":"1.0","event_id":"sha256:6b662effe63e0887177610201c438ed1c9e073cb5fcedc8aa1c23df14012eb65"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:RGHZRJMFBTPYPKSN2RRICUJCKP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Novel PN junction between Mechanically Exfoliated \\b{eta}-Ga2O3 and p-GaN","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.app-ph","authors_text":"Chen Yang, Hong Chen, Houqiang Fu, Jingan Zhou, Jossue Montes, Kai Fu, Tsung-Han Yang, Xuanqi Huang, Yuji Zhao","submitted_at":"2018-12-13T23:18:32Z","abstract_excerpt":"Several pn junctions were constructed from mechanically exfoliated ultrawide bandgap (UWBG) beta-phase gallium oxide (\\b{eta}-Ga2O3) and p-type gallium nitride (GaN). The mechanical exfoliation process, which is described in detail, is similar to that of graphene and other 2D materials. Atomic force microscopy (AFM) scans of the exfoliated \\b{eta}-Ga2O3 flakes show very smooth surfaces with average roughness of 0.647 nm and transmission electron microscopy (TEM) scans reveal flat, clean interfaces between the \\b{eta}-Ga2O3 flakes and p-GaN. The device showed a rectification ratio around 541.3 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.05729","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":"2026-05-17T23:58:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8IVJeGbER+EK3hObTjPTELadlIKtLOGQej0GMi4TrNxKeDG8jjwtTeCeqfRBSOqghSWmmGMC6ewcQ+zHI+/gDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:35:32.498246Z"},"content_sha256":"7a5605f207324d3c1e3057a02813f4d6947ef0b7886f759150c27181d5604df4","schema_version":"1.0","event_id":"sha256:7a5605f207324d3c1e3057a02813f4d6947ef0b7886f759150c27181d5604df4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RGHZRJMFBTPYPKSN2RRICUJCKP/bundle.json","state_url":"https://pith.science/pith/RGHZRJMFBTPYPKSN2RRICUJCKP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RGHZRJMFBTPYPKSN2RRICUJCKP/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":"2026-05-26T21:35:32Z","links":{"resolver":"https://pith.science/pith/RGHZRJMFBTPYPKSN2RRICUJCKP","bundle":"https://pith.science/pith/RGHZRJMFBTPYPKSN2RRICUJCKP/bundle.json","state":"https://pith.science/pith/RGHZRJMFBTPYPKSN2RRICUJCKP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RGHZRJMFBTPYPKSN2RRICUJCKP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RGHZRJMFBTPYPKSN2RRICUJCKP","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":"d6804c45fb89a3546c341955effee782a4dda952c49adf283f82f9b0a827c335","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-13T23:18:32Z","title_canon_sha256":"46d52c284465775f847435a53fabb9ddedc6aa5dd9672e4403edad8f096d58a9"},"schema_version":"1.0","source":{"id":"1812.05729","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.05729","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"arxiv_version","alias_value":"1812.05729v1","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.05729","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"pith_short_12","alias_value":"RGHZRJMFBTPY","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RGHZRJMFBTPYPKSN","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RGHZRJMF","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:7a5605f207324d3c1e3057a02813f4d6947ef0b7886f759150c27181d5604df4","target":"graph","created_at":"2026-05-17T23:58:18Z","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":"Several pn junctions were constructed from mechanically exfoliated ultrawide bandgap (UWBG) beta-phase gallium oxide (\\b{eta}-Ga2O3) and p-type gallium nitride (GaN). The mechanical exfoliation process, which is described in detail, is similar to that of graphene and other 2D materials. Atomic force microscopy (AFM) scans of the exfoliated \\b{eta}-Ga2O3 flakes show very smooth surfaces with average roughness of 0.647 nm and transmission electron microscopy (TEM) scans reveal flat, clean interfaces between the \\b{eta}-Ga2O3 flakes and p-GaN. The device showed a rectification ratio around 541.3 ","authors_text":"Chen Yang, Hong Chen, Houqiang Fu, Jingan Zhou, Jossue Montes, Kai Fu, Tsung-Han Yang, Xuanqi Huang, Yuji Zhao","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-13T23:18:32Z","title":"A Novel PN junction between Mechanically Exfoliated \\b{eta}-Ga2O3 and p-GaN"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.05729","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":"sha256:6b662effe63e0887177610201c438ed1c9e073cb5fcedc8aa1c23df14012eb65","target":"record","created_at":"2026-05-17T23:58:18Z","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":"d6804c45fb89a3546c341955effee782a4dda952c49adf283f82f9b0a827c335","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-13T23:18:32Z","title_canon_sha256":"46d52c284465775f847435a53fabb9ddedc6aa5dd9672e4403edad8f096d58a9"},"schema_version":"1.0","source":{"id":"1812.05729","kind":"arxiv","version":1}},"canonical_sha256":"898f98a5850cdf87aa4dd46281512253d383fb31e7afeff21b731f7686a565f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"898f98a5850cdf87aa4dd46281512253d383fb31e7afeff21b731f7686a565f1","first_computed_at":"2026-05-17T23:58:18.396760Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:18.396760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A8rZHy4e+CsOsTMoN3M6SNPIr17eMJdby225+LVLRwVzzx40mVg6BGBFLKqJXWcjYG8bAbZsQQyoWqNzxMN+DA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:18.397303Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.05729","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b662effe63e0887177610201c438ed1c9e073cb5fcedc8aa1c23df14012eb65","sha256:7a5605f207324d3c1e3057a02813f4d6947ef0b7886f759150c27181d5604df4"],"state_sha256":"2be35a8a4d2225e7de8056ad01b64e24359fb41d8d0491c67ddb0a2b6348e13d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hONkKwWs/gUekxLb75idOeF5Q14hskDcTWocQyy2GXgynM2yzWmCUj2UgKevlsyFVLVPTnFIfy+fvGi8dn1MAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:35:32.501218Z","bundle_sha256":"e8e87d5dc5b126d1bc3aadf1aead0ce94778f48cd579bc973263c041fd9d5052"}}