{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:5OG3XZVCSHZXFZZMRMUPUCHYMH","short_pith_number":"pith:5OG3XZVC","canonical_record":{"source":{"id":"2404.17979","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2024-04-27T18:42:55Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"51768807eee178121a456159680f7b8a3ce050d72de4f3b883a0019d9e8626dc","abstract_canon_sha256":"9a0d53cdeab35ff5f3eaa1fdf266f6b09a5c5dd1cfe2f1f43a7e8265623ac101"},"schema_version":"1.0"},"canonical_sha256":"eb8dbbe6a291f372e72c8b28fa08f861fc91f621fca49a3ea7df3b3422d11d7c","source":{"kind":"arxiv","id":"2404.17979","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.17979","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"arxiv_version","alias_value":"2404.17979v1","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.17979","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"pith_short_12","alias_value":"5OG3XZVCSHZX","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"pith_short_16","alias_value":"5OG3XZVCSHZXFZZM","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"pith_short_8","alias_value":"5OG3XZVC","created_at":"2026-07-05T10:39:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:5OG3XZVCSHZXFZZMRMUPUCHYMH","target":"record","payload":{"canonical_record":{"source":{"id":"2404.17979","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2024-04-27T18:42:55Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"51768807eee178121a456159680f7b8a3ce050d72de4f3b883a0019d9e8626dc","abstract_canon_sha256":"9a0d53cdeab35ff5f3eaa1fdf266f6b09a5c5dd1cfe2f1f43a7e8265623ac101"},"schema_version":"1.0"},"canonical_sha256":"eb8dbbe6a291f372e72c8b28fa08f861fc91f621fca49a3ea7df3b3422d11d7c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:39:18.188964Z","signature_b64":"lTdj46UNCk7EZREsy5NrpyHjNbJ+GAV7BJmsLijD39UzdsxPfxtEcEwBrmBRBZC9aZHFXq0QTisUaA4h/YA9AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb8dbbe6a291f372e72c8b28fa08f861fc91f621fca49a3ea7df3b3422d11d7c","last_reissued_at":"2026-07-05T10:39:18.188546Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:39:18.188546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.17979","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":"2026-07-05T10:39:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g4hCg+lYwYEer7nFtlUFCPZbLVfaJasQdwo5FBrkEqpbI/QLenN3ahZMuPdSFkAyTrgcOzmY3c/ZjTUUiDoECw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T22:17:13.076662Z"},"content_sha256":"2d3af6f6b955941d868a1e04ce0a6148f65a8a27c8cd7370450732e7ec0d45cd","schema_version":"1.0","event_id":"sha256:2d3af6f6b955941d868a1e04ce0a6148f65a8a27c8cd7370450732e7ec0d45cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:5OG3XZVCSHZXFZZMRMUPUCHYMH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Very-Large-Scale Reconfigurable Intelligent Surfaces for Dynamic Control of Terahertz and Millimetre Waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"physics.optics","authors_text":"Coskun Kocabas, Gokhan Bakan, Pietro Stainer, Said Ergoktas, Yury Malevich","submitted_at":"2024-04-27T18:42:55Z","abstract_excerpt":"Unlocking the potential of terahertz (THz) and millimetre (mm) waves for next generation communications and imaging applications requires reconfigurable intelligent surfaces (RIS) with programmable elements that can manipulate the waves in real-time. Realization of this technology has been hindered by the lack of efficient THz electro-optical materials and THz semiconductor platform. Here, by merging graphene-based THz modulators and the thin-film transistor (TFT) technology, we demonstrate mega-scale spatial light modulator arrays with individually addressable subwavelength pixels. We demonst"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.17979","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/2404.17979/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":"2026-07-05T10:39:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AY0txVAgv3MtzlH7i6YVncaiByL0MSLNSMeIEzez2V1Ct6FIKyAE5ZO/oBOLzdAyrwAvaY2reY3wBBqd3ALlCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T22:17:13.077162Z"},"content_sha256":"624e4328141934ccfa1d546bbccc0167b8a44577eac0849658c84e788283ac76","schema_version":"1.0","event_id":"sha256:624e4328141934ccfa1d546bbccc0167b8a44577eac0849658c84e788283ac76"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5OG3XZVCSHZXFZZMRMUPUCHYMH/bundle.json","state_url":"https://pith.science/pith/5OG3XZVCSHZXFZZMRMUPUCHYMH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5OG3XZVCSHZXFZZMRMUPUCHYMH/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":"2026-08-22T22:17:13Z","links":{"resolver":"https://pith.science/pith/5OG3XZVCSHZXFZZMRMUPUCHYMH","bundle":"https://pith.science/pith/5OG3XZVCSHZXFZZMRMUPUCHYMH/bundle.json","state":"https://pith.science/pith/5OG3XZVCSHZXFZZMRMUPUCHYMH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5OG3XZVCSHZXFZZMRMUPUCHYMH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:5OG3XZVCSHZXFZZMRMUPUCHYMH","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":"9a0d53cdeab35ff5f3eaa1fdf266f6b09a5c5dd1cfe2f1f43a7e8265623ac101","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2024-04-27T18:42:55Z","title_canon_sha256":"51768807eee178121a456159680f7b8a3ce050d72de4f3b883a0019d9e8626dc"},"schema_version":"1.0","source":{"id":"2404.17979","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.17979","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"arxiv_version","alias_value":"2404.17979v1","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.17979","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"pith_short_12","alias_value":"5OG3XZVCSHZX","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"pith_short_16","alias_value":"5OG3XZVCSHZXFZZM","created_at":"2026-07-05T10:39:18Z"},{"alias_kind":"pith_short_8","alias_value":"5OG3XZVC","created_at":"2026-07-05T10:39:18Z"}],"graph_snapshots":[{"event_id":"sha256:624e4328141934ccfa1d546bbccc0167b8a44577eac0849658c84e788283ac76","target":"graph","created_at":"2026-07-05T10:39:18Z","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/2404.17979/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Unlocking the potential of terahertz (THz) and millimetre (mm) waves for next generation communications and imaging applications requires reconfigurable intelligent surfaces (RIS) with programmable elements that can manipulate the waves in real-time. Realization of this technology has been hindered by the lack of efficient THz electro-optical materials and THz semiconductor platform. Here, by merging graphene-based THz modulators and the thin-film transistor (TFT) technology, we demonstrate mega-scale spatial light modulator arrays with individually addressable subwavelength pixels. We demonst","authors_text":"Coskun Kocabas, Gokhan Bakan, Pietro Stainer, Said Ergoktas, Yury Malevich","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2024-04-27T18:42:55Z","title":"Very-Large-Scale Reconfigurable Intelligent Surfaces for Dynamic Control of Terahertz and Millimetre Waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.17979","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":"sha256:2d3af6f6b955941d868a1e04ce0a6148f65a8a27c8cd7370450732e7ec0d45cd","target":"record","created_at":"2026-07-05T10:39:18Z","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":"9a0d53cdeab35ff5f3eaa1fdf266f6b09a5c5dd1cfe2f1f43a7e8265623ac101","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2024-04-27T18:42:55Z","title_canon_sha256":"51768807eee178121a456159680f7b8a3ce050d72de4f3b883a0019d9e8626dc"},"schema_version":"1.0","source":{"id":"2404.17979","kind":"arxiv","version":1}},"canonical_sha256":"eb8dbbe6a291f372e72c8b28fa08f861fc91f621fca49a3ea7df3b3422d11d7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb8dbbe6a291f372e72c8b28fa08f861fc91f621fca49a3ea7df3b3422d11d7c","first_computed_at":"2026-07-05T10:39:18.188546Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:39:18.188546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lTdj46UNCk7EZREsy5NrpyHjNbJ+GAV7BJmsLijD39UzdsxPfxtEcEwBrmBRBZC9aZHFXq0QTisUaA4h/YA9AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:39:18.188964Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.17979","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d3af6f6b955941d868a1e04ce0a6148f65a8a27c8cd7370450732e7ec0d45cd","sha256:624e4328141934ccfa1d546bbccc0167b8a44577eac0849658c84e788283ac76"],"state_sha256":"15d7728db267606c21d3536e9cf182073d99b8a67315d63258af0a3ef7131e69"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hH8qfJRZ/x4gqaW2p9y+PI+ROk6f+cQSCEOy6e8LtX8dfiVk4aqMxZxYjhi3LyqXBPXp+H3VBJ4f0Wwu3YmNDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T22:17:13.081771Z","bundle_sha256":"7a841dcebe4f27337fb308729c1d53811c1294aa69506c7bf999417477ac1bf8"}}