{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:27YS4OLQDXLFUZY7Q7G6AJVHW6","short_pith_number":"pith:27YS4OLQ","canonical_record":{"source":{"id":"0804.1833","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-04-11T05:47:29Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"be00adf36f230b529bb97314de470fe455a5be73085cea9554aeb1d1eef6f0bb","abstract_canon_sha256":"9b9c27b2931ede4724eb3a549a020255157f3bdb5b293b2dd03f4f20abd08b2a"},"schema_version":"1.0"},"canonical_sha256":"d7f12e39701dd65a671f87cde026a7b78b963a2f1c4393f0d7955b0a037b4cfa","source":{"kind":"arxiv","id":"0804.1833","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0804.1833","created_at":"2026-05-18T02:15:53Z"},{"alias_kind":"arxiv_version","alias_value":"0804.1833v1","created_at":"2026-05-18T02:15:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0804.1833","created_at":"2026-05-18T02:15:53Z"},{"alias_kind":"pith_short_12","alias_value":"27YS4OLQDXLF","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"27YS4OLQDXLFUZY7","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"27YS4OLQ","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:27YS4OLQDXLFUZY7Q7G6AJVHW6","target":"record","payload":{"canonical_record":{"source":{"id":"0804.1833","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-04-11T05:47:29Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"be00adf36f230b529bb97314de470fe455a5be73085cea9554aeb1d1eef6f0bb","abstract_canon_sha256":"9b9c27b2931ede4724eb3a549a020255157f3bdb5b293b2dd03f4f20abd08b2a"},"schema_version":"1.0"},"canonical_sha256":"d7f12e39701dd65a671f87cde026a7b78b963a2f1c4393f0d7955b0a037b4cfa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:53.758582Z","signature_b64":"ebGmIiChClBFP5bad5ssRC1EYyF9SwTHBXrnYWCW+mWmG3kTaEZ7PZ335gxXIA5HT+9TTr+Xfqg+H/oupqn+DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7f12e39701dd65a671f87cde026a7b78b963a2f1c4393f0d7955b0a037b4cfa","last_reissued_at":"2026-05-18T02:15:53.758099Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:53.758099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0804.1833","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":"2026-05-18T02:15:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jEGFT+MCmtGMuCJ6LZm+r/8GQHrPddFLMR9gKnvH2bvBe9bR1OViFWWm3J6bECmIpQDyvcPea70uMEKi99V7Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:11:43.660847Z"},"content_sha256":"a6f5673df97923598c292b88100850135244953a437b83f09433aa06610a0b64","schema_version":"1.0","event_id":"sha256:a6f5673df97923598c292b88100850135244953a437b83f09433aa06610a0b64"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:27YS4OLQDXLFUZY7Q7G6AJVHW6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Device Model for Graphene Nanoribbon Phototransistor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Maxim Ryzhii, Nadezhda Ryabova, Taiichi Otsuji, Victor Ryzhii, Vladimir Mitin","submitted_at":"2008-04-11T05:47:29Z","abstract_excerpt":"An analytical device model for a graphene nanoribbon phototransistor (GNR-PT) is presented. GNR-PT is based on an array of graphene nanoribbons with the side source and drain contacts, which is sandwiched between the highly conducting substrate and the top gate. Using the developed model, we derive the explicit analytical relationships for the source-drain current as a function of the intensity and frequency of the incident radiation and find the detector responsivity. It is shown that GNR-PTs can be rather effective photodetectors in infrared and terahertz ranges of spectrum."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0804.1833","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":"2026-05-18T02:15:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EmUHLFKFx5GKuDHHk7flGuKQvCJneS3Cti672FZyKLH4Ux94WWKaWp2uz39MMya8cg3xQ/nlbPbfB1lzepd9BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:11:43.661196Z"},"content_sha256":"588029096447a4bb1eadeb4aa09f0c0c615208b6cc4f169e142bc8fc5a0dd19d","schema_version":"1.0","event_id":"sha256:588029096447a4bb1eadeb4aa09f0c0c615208b6cc4f169e142bc8fc5a0dd19d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/27YS4OLQDXLFUZY7Q7G6AJVHW6/bundle.json","state_url":"https://pith.science/pith/27YS4OLQDXLFUZY7Q7G6AJVHW6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/27YS4OLQDXLFUZY7Q7G6AJVHW6/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":"2026-06-02T17:11:43Z","links":{"resolver":"https://pith.science/pith/27YS4OLQDXLFUZY7Q7G6AJVHW6","bundle":"https://pith.science/pith/27YS4OLQDXLFUZY7Q7G6AJVHW6/bundle.json","state":"https://pith.science/pith/27YS4OLQDXLFUZY7Q7G6AJVHW6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/27YS4OLQDXLFUZY7Q7G6AJVHW6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:27YS4OLQDXLFUZY7Q7G6AJVHW6","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":"9b9c27b2931ede4724eb3a549a020255157f3bdb5b293b2dd03f4f20abd08b2a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-04-11T05:47:29Z","title_canon_sha256":"be00adf36f230b529bb97314de470fe455a5be73085cea9554aeb1d1eef6f0bb"},"schema_version":"1.0","source":{"id":"0804.1833","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0804.1833","created_at":"2026-05-18T02:15:53Z"},{"alias_kind":"arxiv_version","alias_value":"0804.1833v1","created_at":"2026-05-18T02:15:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0804.1833","created_at":"2026-05-18T02:15:53Z"},{"alias_kind":"pith_short_12","alias_value":"27YS4OLQDXLF","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"27YS4OLQDXLFUZY7","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"27YS4OLQ","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:588029096447a4bb1eadeb4aa09f0c0c615208b6cc4f169e142bc8fc5a0dd19d","target":"graph","created_at":"2026-05-18T02:15:53Z","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":"An analytical device model for a graphene nanoribbon phototransistor (GNR-PT) is presented. GNR-PT is based on an array of graphene nanoribbons with the side source and drain contacts, which is sandwiched between the highly conducting substrate and the top gate. Using the developed model, we derive the explicit analytical relationships for the source-drain current as a function of the intensity and frequency of the incident radiation and find the detector responsivity. It is shown that GNR-PTs can be rather effective photodetectors in infrared and terahertz ranges of spectrum.","authors_text":"Maxim Ryzhii, Nadezhda Ryabova, Taiichi Otsuji, Victor Ryzhii, Vladimir Mitin","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-04-11T05:47:29Z","title":"Device Model for Graphene Nanoribbon Phototransistor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0804.1833","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:a6f5673df97923598c292b88100850135244953a437b83f09433aa06610a0b64","target":"record","created_at":"2026-05-18T02:15:53Z","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":"9b9c27b2931ede4724eb3a549a020255157f3bdb5b293b2dd03f4f20abd08b2a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-04-11T05:47:29Z","title_canon_sha256":"be00adf36f230b529bb97314de470fe455a5be73085cea9554aeb1d1eef6f0bb"},"schema_version":"1.0","source":{"id":"0804.1833","kind":"arxiv","version":1}},"canonical_sha256":"d7f12e39701dd65a671f87cde026a7b78b963a2f1c4393f0d7955b0a037b4cfa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7f12e39701dd65a671f87cde026a7b78b963a2f1c4393f0d7955b0a037b4cfa","first_computed_at":"2026-05-18T02:15:53.758099Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:53.758099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ebGmIiChClBFP5bad5ssRC1EYyF9SwTHBXrnYWCW+mWmG3kTaEZ7PZ335gxXIA5HT+9TTr+Xfqg+H/oupqn+DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:53.758582Z","signed_message":"canonical_sha256_bytes"},"source_id":"0804.1833","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6f5673df97923598c292b88100850135244953a437b83f09433aa06610a0b64","sha256:588029096447a4bb1eadeb4aa09f0c0c615208b6cc4f169e142bc8fc5a0dd19d"],"state_sha256":"52fb5971c7cdc4d240841ef7cd42106c072ed405c7a4cfb373385a786e37ff48"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ev/QBlqkn160WaxmoofhahyRejES2BTs0FyOroIrU0uhNXPSOE9m+/tXuZAf+OHS2xk76VRHAbIg8GUumIAbAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T17:11:43.663760Z","bundle_sha256":"a4470c35a385e090cad583b460f4c7402ccd8a9b4f6c84b66962d32efb439406"}}