{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:Q7KJQLW6PS6NB6PUUG5BQE2KSL","short_pith_number":"pith:Q7KJQLW6","canonical_record":{"source":{"id":"1606.08100","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-26T23:59:07Z","cross_cats_sorted":[],"title_canon_sha256":"e238fe13499445bf779114d3dd88a6f43241ccb9887f64fd30565c2beb1cfc34","abstract_canon_sha256":"cfbcfc5baf22cb9cb41a58d5789f047d5ab9bf01f2ab834324e9493cb0e642aa"},"schema_version":"1.0"},"canonical_sha256":"87d4982ede7cbcd0f9f4a1ba18134a92f9a5fe981741e1ede8ba4f7c3d970182","source":{"kind":"arxiv","id":"1606.08100","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.08100","created_at":"2026-05-18T00:31:42Z"},{"alias_kind":"arxiv_version","alias_value":"1606.08100v1","created_at":"2026-05-18T00:31:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.08100","created_at":"2026-05-18T00:31:42Z"},{"alias_kind":"pith_short_12","alias_value":"Q7KJQLW6PS6N","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q7KJQLW6PS6NB6PU","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q7KJQLW6","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:Q7KJQLW6PS6NB6PUUG5BQE2KSL","target":"record","payload":{"canonical_record":{"source":{"id":"1606.08100","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-26T23:59:07Z","cross_cats_sorted":[],"title_canon_sha256":"e238fe13499445bf779114d3dd88a6f43241ccb9887f64fd30565c2beb1cfc34","abstract_canon_sha256":"cfbcfc5baf22cb9cb41a58d5789f047d5ab9bf01f2ab834324e9493cb0e642aa"},"schema_version":"1.0"},"canonical_sha256":"87d4982ede7cbcd0f9f4a1ba18134a92f9a5fe981741e1ede8ba4f7c3d970182","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:42.161191Z","signature_b64":"1FXbthJYvTCyAmd+FcYlnC/mBvdjo0O7N00oFqgERQrtaKt5vZ3Yg7eOIr5UPR0fOZhxrTSe0XHTazgAqyMBCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87d4982ede7cbcd0f9f4a1ba18134a92f9a5fe981741e1ede8ba4f7c3d970182","last_reissued_at":"2026-05-18T00:31:42.160598Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:42.160598Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.08100","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":"2026-05-18T00:31:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4hRCFfl34+X0T1PYUBIq68sjI5qyhrUBr7XF5pxp4NZeU34dABFZ7qPQUzi8wXFDRdhBVUSlDxTp7RQtZpUKAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:51:00.715177Z"},"content_sha256":"2990dd43abbddcb18536f53c0e873a22aaf0cddc989e8aad0d917d4e229573c7","schema_version":"1.0","event_id":"sha256:2990dd43abbddcb18536f53c0e873a22aaf0cddc989e8aad0d917d4e229573c7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:Q7KJQLW6PS6NB6PUUG5BQE2KSL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Repeatable Room Temperature Negative Differential Conductance in GaN/AlN Resonant Tunneling Diodes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Debdeep Jena, Faiza Afroz Faria, Huili Grace Xing, Jimy Encomendero, Patrick Fay, Sergei Rouvimov, S.M. Islam, Vladimir Protasenko","submitted_at":"2016-06-26T23:59:07Z","abstract_excerpt":"Double barrier GaN/AlN resonant tunneling heterostructures have been grown by molecular beam epitaxy on the (0001) plane of commercially available bulk GaN substrates. Resonant tunneling diodes were fabricated; room temperature current-voltage measurements reveal the presence of a negative differential conductance region under forward bias with peak current densities of ~6.4 $kA/cm^2$ and a peak to valley current ratio of ~1.3. Reverse bias operation presents a characteristic turn-on threshold voltage intimately linked to the polarization fields present in the heterostructure. An analytic elec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.08100","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":"2026-05-18T00:31:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GGIt9/7cuZwvqCB/Rj8V/R1Yil+lleoEqgRPP0LKSgamdfFY6eoiULuMD3tNfJLmoNSwBf/T8NmzqRBQdEyOCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:51:00.715569Z"},"content_sha256":"3bf125b7b59975dd886fa4180ba4b6b74851abc32e363759f34a6b48c610b8f8","schema_version":"1.0","event_id":"sha256:3bf125b7b59975dd886fa4180ba4b6b74851abc32e363759f34a6b48c610b8f8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q7KJQLW6PS6NB6PUUG5BQE2KSL/bundle.json","state_url":"https://pith.science/pith/Q7KJQLW6PS6NB6PUUG5BQE2KSL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q7KJQLW6PS6NB6PUUG5BQE2KSL/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":"2026-06-02T17:51:00Z","links":{"resolver":"https://pith.science/pith/Q7KJQLW6PS6NB6PUUG5BQE2KSL","bundle":"https://pith.science/pith/Q7KJQLW6PS6NB6PUUG5BQE2KSL/bundle.json","state":"https://pith.science/pith/Q7KJQLW6PS6NB6PUUG5BQE2KSL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q7KJQLW6PS6NB6PUUG5BQE2KSL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:Q7KJQLW6PS6NB6PUUG5BQE2KSL","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":"cfbcfc5baf22cb9cb41a58d5789f047d5ab9bf01f2ab834324e9493cb0e642aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-26T23:59:07Z","title_canon_sha256":"e238fe13499445bf779114d3dd88a6f43241ccb9887f64fd30565c2beb1cfc34"},"schema_version":"1.0","source":{"id":"1606.08100","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.08100","created_at":"2026-05-18T00:31:42Z"},{"alias_kind":"arxiv_version","alias_value":"1606.08100v1","created_at":"2026-05-18T00:31:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.08100","created_at":"2026-05-18T00:31:42Z"},{"alias_kind":"pith_short_12","alias_value":"Q7KJQLW6PS6N","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q7KJQLW6PS6NB6PU","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q7KJQLW6","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:3bf125b7b59975dd886fa4180ba4b6b74851abc32e363759f34a6b48c610b8f8","target":"graph","created_at":"2026-05-18T00:31:42Z","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":"Double barrier GaN/AlN resonant tunneling heterostructures have been grown by molecular beam epitaxy on the (0001) plane of commercially available bulk GaN substrates. Resonant tunneling diodes were fabricated; room temperature current-voltage measurements reveal the presence of a negative differential conductance region under forward bias with peak current densities of ~6.4 $kA/cm^2$ and a peak to valley current ratio of ~1.3. Reverse bias operation presents a characteristic turn-on threshold voltage intimately linked to the polarization fields present in the heterostructure. An analytic elec","authors_text":"Debdeep Jena, Faiza Afroz Faria, Huili Grace Xing, Jimy Encomendero, Patrick Fay, Sergei Rouvimov, S.M. Islam, Vladimir Protasenko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-26T23:59:07Z","title":"Repeatable Room Temperature Negative Differential Conductance in GaN/AlN Resonant Tunneling Diodes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.08100","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":"sha256:2990dd43abbddcb18536f53c0e873a22aaf0cddc989e8aad0d917d4e229573c7","target":"record","created_at":"2026-05-18T00:31:42Z","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":"cfbcfc5baf22cb9cb41a58d5789f047d5ab9bf01f2ab834324e9493cb0e642aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-26T23:59:07Z","title_canon_sha256":"e238fe13499445bf779114d3dd88a6f43241ccb9887f64fd30565c2beb1cfc34"},"schema_version":"1.0","source":{"id":"1606.08100","kind":"arxiv","version":1}},"canonical_sha256":"87d4982ede7cbcd0f9f4a1ba18134a92f9a5fe981741e1ede8ba4f7c3d970182","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"87d4982ede7cbcd0f9f4a1ba18134a92f9a5fe981741e1ede8ba4f7c3d970182","first_computed_at":"2026-05-18T00:31:42.160598Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:42.160598Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1FXbthJYvTCyAmd+FcYlnC/mBvdjo0O7N00oFqgERQrtaKt5vZ3Yg7eOIr5UPR0fOZhxrTSe0XHTazgAqyMBCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:42.161191Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.08100","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2990dd43abbddcb18536f53c0e873a22aaf0cddc989e8aad0d917d4e229573c7","sha256:3bf125b7b59975dd886fa4180ba4b6b74851abc32e363759f34a6b48c610b8f8"],"state_sha256":"20272673f48470a48d54d6135531a8d0e00ac25930242dfd88154f06ef49807b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eJBhqQm5I+Kv53ndy/PNpwMHxiuNfAwp+rW0mTNTIH2dkBNPEwZurXZm18RxfVKWKo4R+GujF8srt2mMqp8EDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T17:51:00.717501Z","bundle_sha256":"a24b5446cd8072fa6ecfc9e065faae6962331aaa3292b054fb5b8bf8dc1ff602"}}