{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:F3GNWSR3QW5PKYWATWL5KF56TJ","short_pith_number":"pith:F3GNWSR3","canonical_record":{"source":{"id":"2505.05971","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-09T11:48:39Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"8844d9950a69ada8fecd688eb922b5175317ed2d1fcb12ed5d3ea73dbbac7236","abstract_canon_sha256":"4535801f05deeb39ae2cdc7de350e5984edf95353756e53da06fde31ff29ea8a"},"schema_version":"1.0"},"canonical_sha256":"2eccdb4a3b85baf562c09d97d517be9a59933fc3b0b39f6ba1821d3119101a9b","source":{"kind":"arxiv","id":"2505.05971","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.05971","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"arxiv_version","alias_value":"2505.05971v1","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.05971","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"pith_short_12","alias_value":"F3GNWSR3QW5P","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"pith_short_16","alias_value":"F3GNWSR3QW5PKYWA","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"pith_short_8","alias_value":"F3GNWSR3","created_at":"2026-07-05T11:00:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:F3GNWSR3QW5PKYWATWL5KF56TJ","target":"record","payload":{"canonical_record":{"source":{"id":"2505.05971","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-09T11:48:39Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"8844d9950a69ada8fecd688eb922b5175317ed2d1fcb12ed5d3ea73dbbac7236","abstract_canon_sha256":"4535801f05deeb39ae2cdc7de350e5984edf95353756e53da06fde31ff29ea8a"},"schema_version":"1.0"},"canonical_sha256":"2eccdb4a3b85baf562c09d97d517be9a59933fc3b0b39f6ba1821d3119101a9b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:00:51.060622Z","signature_b64":"5z5q1e9x0a1xVZMknTp8VUPYxcsGVkPd8c5r9JiDTKkrIkVYHVhqwFBSqKPL8dly+NPJs7SIyjIYdYNm8lpbDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2eccdb4a3b85baf562c09d97d517be9a59933fc3b0b39f6ba1821d3119101a9b","last_reissued_at":"2026-07-05T11:00:51.060155Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:00:51.060155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.05971","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":"2026-07-05T11:00:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eXM3Qj46kwVeabPrKgCmv0TwAuqBNU/e3LOTRLsT6STBrVZcJ+8Z6YC2flA/SFaGT1huAbTTySMxPz8GXd3yDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T01:37:56.102991Z"},"content_sha256":"80482fca27d32f45be3567fe7a358eac6ed4fae80fb2c9d8ab6e34dde1bcb9c5","schema_version":"1.0","event_id":"sha256:80482fca27d32f45be3567fe7a358eac6ed4fae80fb2c9d8ab6e34dde1bcb9c5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:F3GNWSR3QW5PKYWATWL5KF56TJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Beyond Diagonal RIS Design for Parameter Estimation With and Without Eavesdropping","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","math.IT"],"primary_cat":"eess.SP","authors_text":"\\\"Ozlem Tu\\u{g}fe Demir, Sinan Gezici","submitted_at":"2025-05-09T11:48:39Z","abstract_excerpt":"In this letter, we investigate the transmission of a complex-valued parameter vector from a transmitter to an intended receiver, considering both the presence and absence of an eavesdropper. The direct links from the transmitter to both the intended receiver and the eavesdropper are assumed to be blocked, and communications occur solely through cascaded channels facilitated by a beyond-diagonal reconfigurable intelligent surface (BD-RIS). While previous research has considered this system under conventional (diagonal) RIS assistance, we extend the setup to incorporate BD-RIS and quantify the r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.05971","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/2505.05971/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":"2026-07-05T11:00:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wqa+4M+F1S82zQvZe7TxYsK/nCvwBtmLhjloUt2iKTmG26v9Y2EWp4p4tYWPJHiYbNr3Z5aPxwmfqFUt3NSeBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T01:37:56.104010Z"},"content_sha256":"d7abdada582fb1a96130eb400f1f19f641996b8db50b6400d4237342fa5b6994","schema_version":"1.0","event_id":"sha256:d7abdada582fb1a96130eb400f1f19f641996b8db50b6400d4237342fa5b6994"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F3GNWSR3QW5PKYWATWL5KF56TJ/bundle.json","state_url":"https://pith.science/pith/F3GNWSR3QW5PKYWATWL5KF56TJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F3GNWSR3QW5PKYWATWL5KF56TJ/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":"2026-08-20T01:37:56Z","links":{"resolver":"https://pith.science/pith/F3GNWSR3QW5PKYWATWL5KF56TJ","bundle":"https://pith.science/pith/F3GNWSR3QW5PKYWATWL5KF56TJ/bundle.json","state":"https://pith.science/pith/F3GNWSR3QW5PKYWATWL5KF56TJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F3GNWSR3QW5PKYWATWL5KF56TJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:F3GNWSR3QW5PKYWATWL5KF56TJ","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":"4535801f05deeb39ae2cdc7de350e5984edf95353756e53da06fde31ff29ea8a","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-09T11:48:39Z","title_canon_sha256":"8844d9950a69ada8fecd688eb922b5175317ed2d1fcb12ed5d3ea73dbbac7236"},"schema_version":"1.0","source":{"id":"2505.05971","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.05971","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"arxiv_version","alias_value":"2505.05971v1","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.05971","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"pith_short_12","alias_value":"F3GNWSR3QW5P","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"pith_short_16","alias_value":"F3GNWSR3QW5PKYWA","created_at":"2026-07-05T11:00:51Z"},{"alias_kind":"pith_short_8","alias_value":"F3GNWSR3","created_at":"2026-07-05T11:00:51Z"}],"graph_snapshots":[{"event_id":"sha256:d7abdada582fb1a96130eb400f1f19f641996b8db50b6400d4237342fa5b6994","target":"graph","created_at":"2026-07-05T11:00:51Z","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/2505.05971/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this letter, we investigate the transmission of a complex-valued parameter vector from a transmitter to an intended receiver, considering both the presence and absence of an eavesdropper. The direct links from the transmitter to both the intended receiver and the eavesdropper are assumed to be blocked, and communications occur solely through cascaded channels facilitated by a beyond-diagonal reconfigurable intelligent surface (BD-RIS). While previous research has considered this system under conventional (diagonal) RIS assistance, we extend the setup to incorporate BD-RIS and quantify the r","authors_text":"\\\"Ozlem Tu\\u{g}fe Demir, Sinan Gezici","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-09T11:48:39Z","title":"Beyond Diagonal RIS Design for Parameter Estimation With and Without Eavesdropping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.05971","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":"sha256:80482fca27d32f45be3567fe7a358eac6ed4fae80fb2c9d8ab6e34dde1bcb9c5","target":"record","created_at":"2026-07-05T11:00:51Z","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":"4535801f05deeb39ae2cdc7de350e5984edf95353756e53da06fde31ff29ea8a","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-05-09T11:48:39Z","title_canon_sha256":"8844d9950a69ada8fecd688eb922b5175317ed2d1fcb12ed5d3ea73dbbac7236"},"schema_version":"1.0","source":{"id":"2505.05971","kind":"arxiv","version":1}},"canonical_sha256":"2eccdb4a3b85baf562c09d97d517be9a59933fc3b0b39f6ba1821d3119101a9b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2eccdb4a3b85baf562c09d97d517be9a59933fc3b0b39f6ba1821d3119101a9b","first_computed_at":"2026-07-05T11:00:51.060155Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:00:51.060155Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5z5q1e9x0a1xVZMknTp8VUPYxcsGVkPd8c5r9JiDTKkrIkVYHVhqwFBSqKPL8dly+NPJs7SIyjIYdYNm8lpbDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:00:51.060622Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.05971","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:80482fca27d32f45be3567fe7a358eac6ed4fae80fb2c9d8ab6e34dde1bcb9c5","sha256:d7abdada582fb1a96130eb400f1f19f641996b8db50b6400d4237342fa5b6994"],"state_sha256":"052c2762873458570a953cdc34664915bf350f12b34587a6c732dc6a990ee2a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dyend+mgkW9jWgzHFj9/4ZhbHEaqM+60/ZJKz1PU04zRF/JmFjQStKo0pSWiEQwAz6/3A1SEYhzwmBTbzcG0BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T01:37:56.123839Z","bundle_sha256":"4ae11642c129d325167fe1536035d22601768e1a174c6ebc43fe9c5484d94de5"}}