{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:SXOAYZISBVG6B7JTKX2XUXBYXT","short_pith_number":"pith:SXOAYZIS","canonical_record":{"source":{"id":"0707.0375","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-07-03T09:52:41Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"7aca8b05bf93839a046c83709efc4db1cdb1b8e8e13ccceef4b7eb6d3fdb0001","abstract_canon_sha256":"addd67209c9c9f065494306c6c72f6c0cecabf4de695e3d48309de624c5b618d"},"schema_version":"1.0"},"canonical_sha256":"95dc0c65120d4de0fd3355f57a5c38bcecca03bf9260e6eec6bb55d35389eb97","source":{"kind":"arxiv","id":"0707.0375","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0707.0375","created_at":"2026-05-18T02:54:39Z"},{"alias_kind":"arxiv_version","alias_value":"0707.0375v1","created_at":"2026-05-18T02:54:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0707.0375","created_at":"2026-05-18T02:54:39Z"},{"alias_kind":"pith_short_12","alias_value":"SXOAYZISBVG6","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"SXOAYZISBVG6B7JT","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"SXOAYZIS","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:SXOAYZISBVG6B7JTKX2XUXBYXT","target":"record","payload":{"canonical_record":{"source":{"id":"0707.0375","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-07-03T09:52:41Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"7aca8b05bf93839a046c83709efc4db1cdb1b8e8e13ccceef4b7eb6d3fdb0001","abstract_canon_sha256":"addd67209c9c9f065494306c6c72f6c0cecabf4de695e3d48309de624c5b618d"},"schema_version":"1.0"},"canonical_sha256":"95dc0c65120d4de0fd3355f57a5c38bcecca03bf9260e6eec6bb55d35389eb97","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:54:39.907896Z","signature_b64":"KoRofDBd02IHMrOddwqGFMMKfUTzWtyool089Ez//dvML6JPWPFm+n4lB+XBzIakaECxF10EzvSe/q+KvgPSBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"95dc0c65120d4de0fd3355f57a5c38bcecca03bf9260e6eec6bb55d35389eb97","last_reissued_at":"2026-05-18T02:54:39.907297Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:54:39.907297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0707.0375","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":"2026-05-18T02:54:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bqDxH/fDPYl50u0DXzYIswK8RfLeVmVlJ67JdsJ7DwaN7NL37vOjCxDu96K6lwI+e0SAqhh9TwIg1kD+TIC8AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:10:06.858194Z"},"content_sha256":"d25a3b6ba9b7aaeed49540c91d0016ebc5ea6d7bea97c4fd2e433c143037fbe6","schema_version":"1.0","event_id":"sha256:d25a3b6ba9b7aaeed49540c91d0016ebc5ea6d7bea97c4fd2e433c143037fbe6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:SXOAYZISBVG6B7JTKX2XUXBYXT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Performance limits of graphene-ribbon-based field effect transistors","license":"","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"F. Munoz-Rojas, J. Fernandez-Rossier, J. J. Palacios, L. Brey","submitted_at":"2007-07-03T09:52:41Z","abstract_excerpt":"The performance of field effect transistors based on an single graphene ribbon with a constriction and a single back gate are studied with the help of atomistic models. It is shown how this scheme, unlike that of traditional carbon-nanotube-based transistors, reduces the importance of the specifics of the chemical bonding to the metallic electrodes in favor of the carbon-based part of device. The ultimate performance limits are here studied for various constriction and metal-ribbon contact models. In particular we show that, even for poorly contacting metals, properly taylored constrictions ca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0707.0375","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":"2026-05-18T02:54:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6PO8y/f+7cZrTyuBfmZMTfohXpAivRtfzlIxO4K8X/fWfHP7IrCLEocZtaawaDKIvPf9WI9jyQDJWmefRsPBCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:10:06.858940Z"},"content_sha256":"a16adbb97e876ebca136f7ac90a044c7feb33731a66de1908a6c8d8a2d613005","schema_version":"1.0","event_id":"sha256:a16adbb97e876ebca136f7ac90a044c7feb33731a66de1908a6c8d8a2d613005"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SXOAYZISBVG6B7JTKX2XUXBYXT/bundle.json","state_url":"https://pith.science/pith/SXOAYZISBVG6B7JTKX2XUXBYXT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SXOAYZISBVG6B7JTKX2XUXBYXT/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":"2026-05-29T15:10:06Z","links":{"resolver":"https://pith.science/pith/SXOAYZISBVG6B7JTKX2XUXBYXT","bundle":"https://pith.science/pith/SXOAYZISBVG6B7JTKX2XUXBYXT/bundle.json","state":"https://pith.science/pith/SXOAYZISBVG6B7JTKX2XUXBYXT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SXOAYZISBVG6B7JTKX2XUXBYXT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:SXOAYZISBVG6B7JTKX2XUXBYXT","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":"addd67209c9c9f065494306c6c72f6c0cecabf4de695e3d48309de624c5b618d","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-07-03T09:52:41Z","title_canon_sha256":"7aca8b05bf93839a046c83709efc4db1cdb1b8e8e13ccceef4b7eb6d3fdb0001"},"schema_version":"1.0","source":{"id":"0707.0375","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0707.0375","created_at":"2026-05-18T02:54:39Z"},{"alias_kind":"arxiv_version","alias_value":"0707.0375v1","created_at":"2026-05-18T02:54:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0707.0375","created_at":"2026-05-18T02:54:39Z"},{"alias_kind":"pith_short_12","alias_value":"SXOAYZISBVG6","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"SXOAYZISBVG6B7JT","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"SXOAYZIS","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:a16adbb97e876ebca136f7ac90a044c7feb33731a66de1908a6c8d8a2d613005","target":"graph","created_at":"2026-05-18T02:54:39Z","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":"The performance of field effect transistors based on an single graphene ribbon with a constriction and a single back gate are studied with the help of atomistic models. It is shown how this scheme, unlike that of traditional carbon-nanotube-based transistors, reduces the importance of the specifics of the chemical bonding to the metallic electrodes in favor of the carbon-based part of device. The ultimate performance limits are here studied for various constriction and metal-ribbon contact models. In particular we show that, even for poorly contacting metals, properly taylored constrictions ca","authors_text":"F. Munoz-Rojas, J. Fernandez-Rossier, J. J. Palacios, L. Brey","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-07-03T09:52:41Z","title":"Performance limits of graphene-ribbon-based field effect transistors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0707.0375","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:d25a3b6ba9b7aaeed49540c91d0016ebc5ea6d7bea97c4fd2e433c143037fbe6","target":"record","created_at":"2026-05-18T02:54:39Z","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":"addd67209c9c9f065494306c6c72f6c0cecabf4de695e3d48309de624c5b618d","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2007-07-03T09:52:41Z","title_canon_sha256":"7aca8b05bf93839a046c83709efc4db1cdb1b8e8e13ccceef4b7eb6d3fdb0001"},"schema_version":"1.0","source":{"id":"0707.0375","kind":"arxiv","version":1}},"canonical_sha256":"95dc0c65120d4de0fd3355f57a5c38bcecca03bf9260e6eec6bb55d35389eb97","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"95dc0c65120d4de0fd3355f57a5c38bcecca03bf9260e6eec6bb55d35389eb97","first_computed_at":"2026-05-18T02:54:39.907297Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:54:39.907297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KoRofDBd02IHMrOddwqGFMMKfUTzWtyool089Ez//dvML6JPWPFm+n4lB+XBzIakaECxF10EzvSe/q+KvgPSBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:54:39.907896Z","signed_message":"canonical_sha256_bytes"},"source_id":"0707.0375","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d25a3b6ba9b7aaeed49540c91d0016ebc5ea6d7bea97c4fd2e433c143037fbe6","sha256:a16adbb97e876ebca136f7ac90a044c7feb33731a66de1908a6c8d8a2d613005"],"state_sha256":"8a0265c1f9c319fa7ce7c6f5cf3842d0c30bc4160fd0bbaf8220bf9960f266e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WPCXKtDFgGR4MY7IesIrYHuxHgeZv3utypXpzTtg/fBAL27L26nmBkcxHiLQZmJM43O+z1EOljPd93k/Gau0Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T15:10:06.862859Z","bundle_sha256":"f29fda989bbecbe4a4cd26e21457acd53fc6f892db1fa4ce14c7b299fc3eeb64"}}