{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ZCHJRAXBOZDBCFATAG646UKM73","short_pith_number":"pith:ZCHJRAXB","canonical_record":{"source":{"id":"1410.5344","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-20T16:29:04Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"a106087cc3a02f1ee3c246b33e525ff830ce28906c25672c24dcd1071fe04cf8","abstract_canon_sha256":"c09a5271172f49743ea041a10ceb265f7ae36550140212090551c4db937c0114"},"schema_version":"1.0"},"canonical_sha256":"c88e9882e1764611141301bdcf514cfeed60764887987697e5ed53f4e19f7ad3","source":{"kind":"arxiv","id":"1410.5344","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5344","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5344v1","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5344","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"pith_short_12","alias_value":"ZCHJRAXBOZDB","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZCHJRAXBOZDBCFAT","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZCHJRAXB","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ZCHJRAXBOZDBCFATAG646UKM73","target":"record","payload":{"canonical_record":{"source":{"id":"1410.5344","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-20T16:29:04Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"a106087cc3a02f1ee3c246b33e525ff830ce28906c25672c24dcd1071fe04cf8","abstract_canon_sha256":"c09a5271172f49743ea041a10ceb265f7ae36550140212090551c4db937c0114"},"schema_version":"1.0"},"canonical_sha256":"c88e9882e1764611141301bdcf514cfeed60764887987697e5ed53f4e19f7ad3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:39:46.260410Z","signature_b64":"UjkXLb+nmkohReffrXBtdBIQm/PW/pWAk5SHjLbeiXPmvjjqwieTui1CihStgq4lPFXQzW0CQRa8IPL6C0biDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c88e9882e1764611141301bdcf514cfeed60764887987697e5ed53f4e19f7ad3","last_reissued_at":"2026-05-18T02:39:46.259897Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:39:46.259897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.5344","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":"2026-05-18T02:39:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AuyTzbs6uG7ai75QbknRv38ffh3ve9wDmj2mlVxByq3XSTAZ++u9QEPlg3vGoCeFdHNjPEqi7JhvbI4M5fPIAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:20:21.534362Z"},"content_sha256":"4dfa2db44f51b8fce72f4b63a809bdc9b037402f406f478577afa4081dd1dbad","schema_version":"1.0","event_id":"sha256:4dfa2db44f51b8fce72f4b63a809bdc9b037402f406f478577afa4081dd1dbad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ZCHJRAXBOZDBCFATAG646UKM73","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tunable Antenna Coupled Intersubband Terahertz Detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"physics.ins-det","authors_text":"Boris Karasik, Jonathan Kawamura, Loren Pfeiffer, Mark Sherwin, Nacer Chahat, Nutan Gautam, Paolo Focardi, Samuel Gulkis","submitted_at":"2014-10-20T16:29:04Z","abstract_excerpt":"We report on the development of a tunable antenna coupled intersubband terahertz (TACIT) detector based on GaAs/AlGaAs two dimensional electron gas. A successful device design and micro-fabrication process have been developed which maintain the high mobility (1.1x106 cm2/V-s at 10K) of a 2DEG channel in the presence of a highly conducting backgate. Gate voltage-controlled device resistance and direct THz sensing has been observed. The goal is to operate as a nearly quantum noise limited heterodyne sensor suitable for passively-cooled space platforms."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5344","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":"2026-05-18T02:39:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RQwduJ111XosXAvl6its4yZngFISVrl0FxMGP38sZaE3pf8UyYZRI6WhUhIO3U7RTiMEBdbdRaYZKafcOZ1lCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:20:21.535072Z"},"content_sha256":"bc10749c40ca4c2b964af5b1182f2805ad50f7238f8c83b19339c5a3eca048aa","schema_version":"1.0","event_id":"sha256:bc10749c40ca4c2b964af5b1182f2805ad50f7238f8c83b19339c5a3eca048aa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZCHJRAXBOZDBCFATAG646UKM73/bundle.json","state_url":"https://pith.science/pith/ZCHJRAXBOZDBCFATAG646UKM73/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZCHJRAXBOZDBCFATAG646UKM73/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":"2026-05-25T18:20:21Z","links":{"resolver":"https://pith.science/pith/ZCHJRAXBOZDBCFATAG646UKM73","bundle":"https://pith.science/pith/ZCHJRAXBOZDBCFATAG646UKM73/bundle.json","state":"https://pith.science/pith/ZCHJRAXBOZDBCFATAG646UKM73/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZCHJRAXBOZDBCFATAG646UKM73/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZCHJRAXBOZDBCFATAG646UKM73","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":"c09a5271172f49743ea041a10ceb265f7ae36550140212090551c4db937c0114","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-20T16:29:04Z","title_canon_sha256":"a106087cc3a02f1ee3c246b33e525ff830ce28906c25672c24dcd1071fe04cf8"},"schema_version":"1.0","source":{"id":"1410.5344","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5344","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5344v1","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5344","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"pith_short_12","alias_value":"ZCHJRAXBOZDB","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZCHJRAXBOZDBCFAT","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZCHJRAXB","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:bc10749c40ca4c2b964af5b1182f2805ad50f7238f8c83b19339c5a3eca048aa","target":"graph","created_at":"2026-05-18T02:39:46Z","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":"We report on the development of a tunable antenna coupled intersubband terahertz (TACIT) detector based on GaAs/AlGaAs two dimensional electron gas. A successful device design and micro-fabrication process have been developed which maintain the high mobility (1.1x106 cm2/V-s at 10K) of a 2DEG channel in the presence of a highly conducting backgate. Gate voltage-controlled device resistance and direct THz sensing has been observed. The goal is to operate as a nearly quantum noise limited heterodyne sensor suitable for passively-cooled space platforms.","authors_text":"Boris Karasik, Jonathan Kawamura, Loren Pfeiffer, Mark Sherwin, Nacer Chahat, Nutan Gautam, Paolo Focardi, Samuel Gulkis","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-20T16:29:04Z","title":"Tunable Antenna Coupled Intersubband Terahertz Detector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5344","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":"sha256:4dfa2db44f51b8fce72f4b63a809bdc9b037402f406f478577afa4081dd1dbad","target":"record","created_at":"2026-05-18T02:39:46Z","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":"c09a5271172f49743ea041a10ceb265f7ae36550140212090551c4db937c0114","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-20T16:29:04Z","title_canon_sha256":"a106087cc3a02f1ee3c246b33e525ff830ce28906c25672c24dcd1071fe04cf8"},"schema_version":"1.0","source":{"id":"1410.5344","kind":"arxiv","version":1}},"canonical_sha256":"c88e9882e1764611141301bdcf514cfeed60764887987697e5ed53f4e19f7ad3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c88e9882e1764611141301bdcf514cfeed60764887987697e5ed53f4e19f7ad3","first_computed_at":"2026-05-18T02:39:46.259897Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:39:46.259897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UjkXLb+nmkohReffrXBtdBIQm/PW/pWAk5SHjLbeiXPmvjjqwieTui1CihStgq4lPFXQzW0CQRa8IPL6C0biDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:39:46.260410Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.5344","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4dfa2db44f51b8fce72f4b63a809bdc9b037402f406f478577afa4081dd1dbad","sha256:bc10749c40ca4c2b964af5b1182f2805ad50f7238f8c83b19339c5a3eca048aa"],"state_sha256":"863c45a35b3a6776f3879558668e606674ac148f0de8cd1b2fc7f99638ad7660"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mpQa77XCU17YjJxSTkcXQq1DxgVJ4x/cZUP7C7PYXXF5PQlTDyXNtr47/CYSuTsnEuQsgysYIx2BihOMO45yCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:20:21.537989Z","bundle_sha256":"9b418d95a6aba5f24cd76244615c6ab7d81988ba43a63384cac2a6d28edd3b75"}}