{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:FVMY53HIZHF33WPY2MJWAWPXDO","short_pith_number":"pith:FVMY53HI","canonical_record":{"source":{"id":"2304.08900","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-04-18T11:00:46Z","cross_cats_sorted":[],"title_canon_sha256":"82baffd7a3d9702795dc4ceeaa104a76319192f7907103e0d83df0f674a45b6c","abstract_canon_sha256":"24cd60bc2535eac7ebb3281f05eb86fc4d3a9bb9aa8ff398b906cd55a91654a6"},"schema_version":"1.0"},"canonical_sha256":"2d598eece8c9cbbdd9f8d3136059f71bbef6502d00ef3b9c5abfb19f6e5d75ba","source":{"kind":"arxiv","id":"2304.08900","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.08900","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"2304.08900v1","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.08900","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"FVMY53HIZHF3","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"pith_short_16","alias_value":"FVMY53HIZHF33WPY","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"pith_short_8","alias_value":"FVMY53HI","created_at":"2026-07-05T06:02:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:FVMY53HIZHF33WPY2MJWAWPXDO","target":"record","payload":{"canonical_record":{"source":{"id":"2304.08900","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-04-18T11:00:46Z","cross_cats_sorted":[],"title_canon_sha256":"82baffd7a3d9702795dc4ceeaa104a76319192f7907103e0d83df0f674a45b6c","abstract_canon_sha256":"24cd60bc2535eac7ebb3281f05eb86fc4d3a9bb9aa8ff398b906cd55a91654a6"},"schema_version":"1.0"},"canonical_sha256":"2d598eece8c9cbbdd9f8d3136059f71bbef6502d00ef3b9c5abfb19f6e5d75ba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:02:14.965143Z","signature_b64":"bD3FTNTUhS85+jYWZ8UvxECaQYWnRIY7+Yj0OM9DzrIPe2ImjMEeq2nHWVQaUwr6n2hp2POwiqCFa9K3SRcVBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d598eece8c9cbbdd9f8d3136059f71bbef6502d00ef3b9c5abfb19f6e5d75ba","last_reissued_at":"2026-07-05T06:02:14.964819Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:02:14.964819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.08900","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":"2026-07-05T06:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LrRG5BUkBYx/Q2lRhPWvvcR3729jvKOBJ6CBtZkOoNCGkEtSd/hfVGqwwvxt3SYMfP4koWXoeBGt0iV/Wen8Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:56:16.727394Z"},"content_sha256":"469a72e3bb5b2ef0cb9a02ada4461de8e02f73b39c0e02fbfe0a1fbe62751088","schema_version":"1.0","event_id":"sha256:469a72e3bb5b2ef0cb9a02ada4461de8e02f73b39c0e02fbfe0a1fbe62751088"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:FVMY53HIZHF33WPY2MJWAWPXDO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Feedback enhanced Dyakonov-Shur instability in Graphene-FET","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Diogo Sim\\~oes, Pedro Cosme","submitted_at":"2023-04-18T11:00:46Z","abstract_excerpt":"Graphene devices are known to have the potential to operate THz signals. In particular, graphene field-effect transistors have been proposed as devices to host plasmonic instabilities in the THz realm; for instance, Dyakonov-Shur instability which relies upon dc excitation. In this work, starting from a hydrodynamical description of the charge carriers, we extend the transmission line description of graphene field-effect transistors to a scheme with a positive feedback loop, also considering the effects of delay, which leads to the transcendental transfer function with terms of the form $e^{as"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.08900","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2304.08900/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T06:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cx0Ku5hEzFjXnrkTh7ua258Av6cK0ikWcBVntNaY4DNoq4ePwJw5jSCQng1/YnbOGSTPm4Kaq5zwHe1GLRweDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:56:16.727784Z"},"content_sha256":"1f08a4c51483d686079967d8a4233f19f5c9a7b7dada870ffb4e7ab2a1f1f197","schema_version":"1.0","event_id":"sha256:1f08a4c51483d686079967d8a4233f19f5c9a7b7dada870ffb4e7ab2a1f1f197"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FVMY53HIZHF33WPY2MJWAWPXDO/bundle.json","state_url":"https://pith.science/pith/FVMY53HIZHF33WPY2MJWAWPXDO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FVMY53HIZHF33WPY2MJWAWPXDO/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":"2026-07-07T09:56:16Z","links":{"resolver":"https://pith.science/pith/FVMY53HIZHF33WPY2MJWAWPXDO","bundle":"https://pith.science/pith/FVMY53HIZHF33WPY2MJWAWPXDO/bundle.json","state":"https://pith.science/pith/FVMY53HIZHF33WPY2MJWAWPXDO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FVMY53HIZHF33WPY2MJWAWPXDO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:FVMY53HIZHF33WPY2MJWAWPXDO","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":"24cd60bc2535eac7ebb3281f05eb86fc4d3a9bb9aa8ff398b906cd55a91654a6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-04-18T11:00:46Z","title_canon_sha256":"82baffd7a3d9702795dc4ceeaa104a76319192f7907103e0d83df0f674a45b6c"},"schema_version":"1.0","source":{"id":"2304.08900","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.08900","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"2304.08900v1","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.08900","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"FVMY53HIZHF3","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"pith_short_16","alias_value":"FVMY53HIZHF33WPY","created_at":"2026-07-05T06:02:14Z"},{"alias_kind":"pith_short_8","alias_value":"FVMY53HI","created_at":"2026-07-05T06:02:14Z"}],"graph_snapshots":[{"event_id":"sha256:1f08a4c51483d686079967d8a4233f19f5c9a7b7dada870ffb4e7ab2a1f1f197","target":"graph","created_at":"2026-07-05T06:02:14Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2304.08900/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Graphene devices are known to have the potential to operate THz signals. In particular, graphene field-effect transistors have been proposed as devices to host plasmonic instabilities in the THz realm; for instance, Dyakonov-Shur instability which relies upon dc excitation. In this work, starting from a hydrodynamical description of the charge carriers, we extend the transmission line description of graphene field-effect transistors to a scheme with a positive feedback loop, also considering the effects of delay, which leads to the transcendental transfer function with terms of the form $e^{as","authors_text":"Diogo Sim\\~oes, Pedro Cosme","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-04-18T11:00:46Z","title":"Feedback enhanced Dyakonov-Shur instability in Graphene-FET"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.08900","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":"sha256:469a72e3bb5b2ef0cb9a02ada4461de8e02f73b39c0e02fbfe0a1fbe62751088","target":"record","created_at":"2026-07-05T06:02:14Z","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":"24cd60bc2535eac7ebb3281f05eb86fc4d3a9bb9aa8ff398b906cd55a91654a6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-04-18T11:00:46Z","title_canon_sha256":"82baffd7a3d9702795dc4ceeaa104a76319192f7907103e0d83df0f674a45b6c"},"schema_version":"1.0","source":{"id":"2304.08900","kind":"arxiv","version":1}},"canonical_sha256":"2d598eece8c9cbbdd9f8d3136059f71bbef6502d00ef3b9c5abfb19f6e5d75ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d598eece8c9cbbdd9f8d3136059f71bbef6502d00ef3b9c5abfb19f6e5d75ba","first_computed_at":"2026-07-05T06:02:14.964819Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:02:14.964819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bD3FTNTUhS85+jYWZ8UvxECaQYWnRIY7+Yj0OM9DzrIPe2ImjMEeq2nHWVQaUwr6n2hp2POwiqCFa9K3SRcVBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:02:14.965143Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.08900","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:469a72e3bb5b2ef0cb9a02ada4461de8e02f73b39c0e02fbfe0a1fbe62751088","sha256:1f08a4c51483d686079967d8a4233f19f5c9a7b7dada870ffb4e7ab2a1f1f197"],"state_sha256":"336be0a0dcf464f6fa238deca40deeeda8c5a2e9cc756d63ef42bb42753868f1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gz66BLt/z++ytTyQMot93UvFZxMZ0z0Bcx4dKB2JGLLbUu4u7hSBSrr7ubLxApq+5zoLTPGOpuFKMvsomvVqDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:56:16.729887Z","bundle_sha256":"178496fb2e6cec2f61a22f6b236d0cf2007a7eaba46fe4a0c978680cc4473e37"}}