{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:E3MHR3WDXNI3GUZZIEUEPLP2QW","short_pith_number":"pith:E3MHR3WD","canonical_record":{"source":{"id":"2412.01002","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-12-01T23:30:08Z","cross_cats_sorted":["cs.IT","math.IT","physics.app-ph"],"title_canon_sha256":"498bc4bc3fd8179d2489cba6f90912a866b39a48eec12be8c29cbabd5d3c1e5a","abstract_canon_sha256":"f657d7c44f94a95e4453550fa3c8b51d0513f1755aec3a67692c2329f15171e8"},"schema_version":"1.0"},"canonical_sha256":"26d878eec3bb51b35339412847adfa85a990693d57ee72106bb23b11cb7cdbb8","source":{"kind":"arxiv","id":"2412.01002","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.01002","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"arxiv_version","alias_value":"2412.01002v1","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.01002","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"pith_short_12","alias_value":"E3MHR3WDXNI3","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"pith_short_16","alias_value":"E3MHR3WDXNI3GUZZ","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"pith_short_8","alias_value":"E3MHR3WD","created_at":"2026-07-05T09:42:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:E3MHR3WDXNI3GUZZIEUEPLP2QW","target":"record","payload":{"canonical_record":{"source":{"id":"2412.01002","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-12-01T23:30:08Z","cross_cats_sorted":["cs.IT","math.IT","physics.app-ph"],"title_canon_sha256":"498bc4bc3fd8179d2489cba6f90912a866b39a48eec12be8c29cbabd5d3c1e5a","abstract_canon_sha256":"f657d7c44f94a95e4453550fa3c8b51d0513f1755aec3a67692c2329f15171e8"},"schema_version":"1.0"},"canonical_sha256":"26d878eec3bb51b35339412847adfa85a990693d57ee72106bb23b11cb7cdbb8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:42:51.932929Z","signature_b64":"ez3gwpjb9XKJ8e4O7Y/U7vXTwfOlZwJOsHcRGyZL2AhmLGEOhaXXm2RYaCjvxgaPRJO8GWf9TImSG0e0rpklAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"26d878eec3bb51b35339412847adfa85a990693d57ee72106bb23b11cb7cdbb8","last_reissued_at":"2026-07-05T09:42:51.932324Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:42:51.932324Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.01002","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":"2026-07-05T09:42:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+G8Ot0QqQWSe75u6eA9M01osFy3BowMwbrcz/vCINAUe1EtDm8USFrpLPAyU7sDO/vLr9Ty5SohKKwvG38NpCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T20:49:49.845595Z"},"content_sha256":"9c3f3583a0ac458587beb738d479cf9c86928b20d311d0f3d951614e5faae781","schema_version":"1.0","event_id":"sha256:9c3f3583a0ac458587beb738d479cf9c86928b20d311d0f3d951614e5faae781"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:E3MHR3WDXNI3GUZZIEUEPLP2QW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mutual Coupling in Dynamic Metasurface Antennas: Foe, but also Friend","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","math.IT","physics.app-ph"],"primary_cat":"eess.SP","authors_text":"Hugo Prod'Homme, Philipp del Hougne","submitted_at":"2024-12-01T23:30:08Z","abstract_excerpt":"Dynamic metasurface antennas (DMAs), surfaces patterned with reconfigurable metamaterial elements (meta-atoms) that couple waves from waveguides or cavities to free space, are a promising technology to realize 6G wireless base stations and access points with low cost and power consumption. Mutual coupling between the DMA's meta-atoms results in a non-linear dependence of the radiation pattern on the DMA configuration, significantly complicating modeling and optimization. Therefore, mutual coupling has to date been considered a vexing nuance that is frequently neglected in theoretical studies a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.01002","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/2412.01002/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":"2026-07-05T09:42:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6z7ybwC9Fkluu0A1FmmtQnX6O0dmBgsTvivmIm2vrVsVuRf/0SSVT1dey+vpI+W8AsPwDCKX1adgkUcx9EkOBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T20:49:49.846150Z"},"content_sha256":"7d1bde0544562a5cf199e44c0bd5b5e538fe97cf08d8f9ba5e2639cc760fda6c","schema_version":"1.0","event_id":"sha256:7d1bde0544562a5cf199e44c0bd5b5e538fe97cf08d8f9ba5e2639cc760fda6c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E3MHR3WDXNI3GUZZIEUEPLP2QW/bundle.json","state_url":"https://pith.science/pith/E3MHR3WDXNI3GUZZIEUEPLP2QW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E3MHR3WDXNI3GUZZIEUEPLP2QW/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":"2026-08-16T20:49:49Z","links":{"resolver":"https://pith.science/pith/E3MHR3WDXNI3GUZZIEUEPLP2QW","bundle":"https://pith.science/pith/E3MHR3WDXNI3GUZZIEUEPLP2QW/bundle.json","state":"https://pith.science/pith/E3MHR3WDXNI3GUZZIEUEPLP2QW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E3MHR3WDXNI3GUZZIEUEPLP2QW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:E3MHR3WDXNI3GUZZIEUEPLP2QW","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":"f657d7c44f94a95e4453550fa3c8b51d0513f1755aec3a67692c2329f15171e8","cross_cats_sorted":["cs.IT","math.IT","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-12-01T23:30:08Z","title_canon_sha256":"498bc4bc3fd8179d2489cba6f90912a866b39a48eec12be8c29cbabd5d3c1e5a"},"schema_version":"1.0","source":{"id":"2412.01002","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.01002","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"arxiv_version","alias_value":"2412.01002v1","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.01002","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"pith_short_12","alias_value":"E3MHR3WDXNI3","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"pith_short_16","alias_value":"E3MHR3WDXNI3GUZZ","created_at":"2026-07-05T09:42:51Z"},{"alias_kind":"pith_short_8","alias_value":"E3MHR3WD","created_at":"2026-07-05T09:42:51Z"}],"graph_snapshots":[{"event_id":"sha256:7d1bde0544562a5cf199e44c0bd5b5e538fe97cf08d8f9ba5e2639cc760fda6c","target":"graph","created_at":"2026-07-05T09:42:51Z","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/2412.01002/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Dynamic metasurface antennas (DMAs), surfaces patterned with reconfigurable metamaterial elements (meta-atoms) that couple waves from waveguides or cavities to free space, are a promising technology to realize 6G wireless base stations and access points with low cost and power consumption. Mutual coupling between the DMA's meta-atoms results in a non-linear dependence of the radiation pattern on the DMA configuration, significantly complicating modeling and optimization. Therefore, mutual coupling has to date been considered a vexing nuance that is frequently neglected in theoretical studies a","authors_text":"Hugo Prod'Homme, Philipp del Hougne","cross_cats":["cs.IT","math.IT","physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-12-01T23:30:08Z","title":"Mutual Coupling in Dynamic Metasurface Antennas: Foe, but also Friend"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.01002","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":"sha256:9c3f3583a0ac458587beb738d479cf9c86928b20d311d0f3d951614e5faae781","target":"record","created_at":"2026-07-05T09:42:51Z","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":"f657d7c44f94a95e4453550fa3c8b51d0513f1755aec3a67692c2329f15171e8","cross_cats_sorted":["cs.IT","math.IT","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-12-01T23:30:08Z","title_canon_sha256":"498bc4bc3fd8179d2489cba6f90912a866b39a48eec12be8c29cbabd5d3c1e5a"},"schema_version":"1.0","source":{"id":"2412.01002","kind":"arxiv","version":1}},"canonical_sha256":"26d878eec3bb51b35339412847adfa85a990693d57ee72106bb23b11cb7cdbb8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"26d878eec3bb51b35339412847adfa85a990693d57ee72106bb23b11cb7cdbb8","first_computed_at":"2026-07-05T09:42:51.932324Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:42:51.932324Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ez3gwpjb9XKJ8e4O7Y/U7vXTwfOlZwJOsHcRGyZL2AhmLGEOhaXXm2RYaCjvxgaPRJO8GWf9TImSG0e0rpklAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:42:51.932929Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.01002","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c3f3583a0ac458587beb738d479cf9c86928b20d311d0f3d951614e5faae781","sha256:7d1bde0544562a5cf199e44c0bd5b5e538fe97cf08d8f9ba5e2639cc760fda6c"],"state_sha256":"24cb730fdba58a275091b5c9b6c89395d72d9c8fe2b911be314f23c797fbb28e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VenrXjMbXLfVkf/XxLwz0OrEkCPgnKIPKRxDry6Xz+Y5hCpUEsAhlsJuLYOOCgjBj/9k2NKkWqvkeJITTz+oAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T20:49:49.849490Z","bundle_sha256":"4edccbd7d8b8d02d6e8b145d1ebdccff76ba4e980ac2f41053fd4bdceb6b7340"}}