{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:TVZUU5VQHZ57X4OWIWVRNGG6FW","short_pith_number":"pith:TVZUU5VQ","canonical_record":{"source":{"id":"2405.13585","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-05-22T12:27:38Z","cross_cats_sorted":[],"title_canon_sha256":"8b315d522bfbfd33fe6c8b87fce61364d5de6d3a6a1cebddd5232469c16e02de","abstract_canon_sha256":"274504659aa1eb77f9d3a30846e06e693d086fcea162f295ba759ba53c97f433"},"schema_version":"1.0"},"canonical_sha256":"9d734a76b03e7bfbf1d645ab1698de2d94d3da2f589d91ef70f2eea74bad6b2e","source":{"kind":"arxiv","id":"2405.13585","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.13585","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"arxiv_version","alias_value":"2405.13585v2","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.13585","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"pith_short_12","alias_value":"TVZUU5VQHZ57","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"pith_short_16","alias_value":"TVZUU5VQHZ57X4OW","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"pith_short_8","alias_value":"TVZUU5VQ","created_at":"2026-07-05T09:23:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:TVZUU5VQHZ57X4OWIWVRNGG6FW","target":"record","payload":{"canonical_record":{"source":{"id":"2405.13585","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-05-22T12:27:38Z","cross_cats_sorted":[],"title_canon_sha256":"8b315d522bfbfd33fe6c8b87fce61364d5de6d3a6a1cebddd5232469c16e02de","abstract_canon_sha256":"274504659aa1eb77f9d3a30846e06e693d086fcea162f295ba759ba53c97f433"},"schema_version":"1.0"},"canonical_sha256":"9d734a76b03e7bfbf1d645ab1698de2d94d3da2f589d91ef70f2eea74bad6b2e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:23:50.602222Z","signature_b64":"WqykHvdrDVnAB2xEp2JkqVLSttbFB9PlMAQPuyYpaAKIuktTW+pGMLcKK3TIqELLfJ5t3RjoDOHniK0KDf3nCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d734a76b03e7bfbf1d645ab1698de2d94d3da2f589d91ef70f2eea74bad6b2e","last_reissued_at":"2026-07-05T09:23:50.601728Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:23:50.601728Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.13585","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:23:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"08MXcayKclEveBhKggCEMJPCoW4vCrSv8ZXJTaUvT7lX5fpxjtbPBGytDBsstLMQ0+ViwmyN2i81SbikJpOPDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:48:38.332790Z"},"content_sha256":"63b12e6bf8200fec7c8a6f8a76866279d7bbf1a4e3fde80983c0858cdd0095e4","schema_version":"1.0","event_id":"sha256:63b12e6bf8200fec7c8a6f8a76866279d7bbf1a4e3fde80983c0858cdd0095e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:TVZUU5VQHZ57X4OWIWVRNGG6FW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanoscale Terahertz Conductivity and Ultrafast Dynamics of Terahertz Plasmons in Periodic Arrays of Epitaxial Graphene Nanoribbons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Arvind Singh, Hynek N\\v{e}mec, Jan Kunc, Petr Ku\\v{z}el","submitted_at":"2024-05-22T12:27:38Z","abstract_excerpt":"Dynamics of plasmons in nanoribbons of (hydrogen intercalated) quasi-free-standing single layer graphene is studied by terahertz spectroscopy both in the steady state and upon photoexcitation by an ultrashort near infrared laser pulse. The use of two-dimensional frequency domain analysis of the optical pump - THz probe signals allows us to determine the evolution of carrier temperature and plasmon characteristics with ~100 fs time resolution. Namely, we find that the carrier temperature decreases from more than 5000 K to the lattice temperature within about 7 ps and that during this evolution "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.13585","kind":"arxiv","version":2},"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/2405.13585/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":"2026-07-05T09:23:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zaS1yrDty+vATQrqFhOgiauQC4DmOLq83glh23xuG9cVSkhv+WNRX2WZlK/EncIDzwrpQMaF5tD9bLk5BjmbDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:48:38.333643Z"},"content_sha256":"9a1370243a5fbd6abbf9389e102cd1dd9b28f1a0cdf6cfa69add0992a5589be4","schema_version":"1.0","event_id":"sha256:9a1370243a5fbd6abbf9389e102cd1dd9b28f1a0cdf6cfa69add0992a5589be4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TVZUU5VQHZ57X4OWIWVRNGG6FW/bundle.json","state_url":"https://pith.science/pith/TVZUU5VQHZ57X4OWIWVRNGG6FW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TVZUU5VQHZ57X4OWIWVRNGG6FW/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":"2026-08-20T02:48:38Z","links":{"resolver":"https://pith.science/pith/TVZUU5VQHZ57X4OWIWVRNGG6FW","bundle":"https://pith.science/pith/TVZUU5VQHZ57X4OWIWVRNGG6FW/bundle.json","state":"https://pith.science/pith/TVZUU5VQHZ57X4OWIWVRNGG6FW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TVZUU5VQHZ57X4OWIWVRNGG6FW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:TVZUU5VQHZ57X4OWIWVRNGG6FW","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":"274504659aa1eb77f9d3a30846e06e693d086fcea162f295ba759ba53c97f433","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-05-22T12:27:38Z","title_canon_sha256":"8b315d522bfbfd33fe6c8b87fce61364d5de6d3a6a1cebddd5232469c16e02de"},"schema_version":"1.0","source":{"id":"2405.13585","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.13585","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"arxiv_version","alias_value":"2405.13585v2","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.13585","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"pith_short_12","alias_value":"TVZUU5VQHZ57","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"pith_short_16","alias_value":"TVZUU5VQHZ57X4OW","created_at":"2026-07-05T09:23:50Z"},{"alias_kind":"pith_short_8","alias_value":"TVZUU5VQ","created_at":"2026-07-05T09:23:50Z"}],"graph_snapshots":[{"event_id":"sha256:9a1370243a5fbd6abbf9389e102cd1dd9b28f1a0cdf6cfa69add0992a5589be4","target":"graph","created_at":"2026-07-05T09:23:50Z","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/2405.13585/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Dynamics of plasmons in nanoribbons of (hydrogen intercalated) quasi-free-standing single layer graphene is studied by terahertz spectroscopy both in the steady state and upon photoexcitation by an ultrashort near infrared laser pulse. The use of two-dimensional frequency domain analysis of the optical pump - THz probe signals allows us to determine the evolution of carrier temperature and plasmon characteristics with ~100 fs time resolution. Namely, we find that the carrier temperature decreases from more than 5000 K to the lattice temperature within about 7 ps and that during this evolution ","authors_text":"Arvind Singh, Hynek N\\v{e}mec, Jan Kunc, Petr Ku\\v{z}el","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-05-22T12:27:38Z","title":"Nanoscale Terahertz Conductivity and Ultrafast Dynamics of Terahertz Plasmons in Periodic Arrays of Epitaxial Graphene Nanoribbons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.13585","kind":"arxiv","version":2},"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":"sha256:63b12e6bf8200fec7c8a6f8a76866279d7bbf1a4e3fde80983c0858cdd0095e4","target":"record","created_at":"2026-07-05T09:23:50Z","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":"274504659aa1eb77f9d3a30846e06e693d086fcea162f295ba759ba53c97f433","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-05-22T12:27:38Z","title_canon_sha256":"8b315d522bfbfd33fe6c8b87fce61364d5de6d3a6a1cebddd5232469c16e02de"},"schema_version":"1.0","source":{"id":"2405.13585","kind":"arxiv","version":2}},"canonical_sha256":"9d734a76b03e7bfbf1d645ab1698de2d94d3da2f589d91ef70f2eea74bad6b2e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d734a76b03e7bfbf1d645ab1698de2d94d3da2f589d91ef70f2eea74bad6b2e","first_computed_at":"2026-07-05T09:23:50.601728Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:23:50.601728Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WqykHvdrDVnAB2xEp2JkqVLSttbFB9PlMAQPuyYpaAKIuktTW+pGMLcKK3TIqELLfJ5t3RjoDOHniK0KDf3nCA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:23:50.602222Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.13585","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63b12e6bf8200fec7c8a6f8a76866279d7bbf1a4e3fde80983c0858cdd0095e4","sha256:9a1370243a5fbd6abbf9389e102cd1dd9b28f1a0cdf6cfa69add0992a5589be4"],"state_sha256":"577691f1504f564ca145927ca2903a96d31bc52c11cff842aa49ec6dce22ec82"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RbgJvDHPpWY8+gkBbnRp1ROhAizexPPNHrbsUqPhOuM/ZrUKfN6YlZAIn3DsWiggGMnb69ujb3wQg1hRtND0AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T02:48:38.339328Z","bundle_sha256":"f4042d07d25f9f7acb713716474d8052b89390fd614f24211595cf8c4068d92b"}}