{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:4FI6LSE72ZTYJKKXJ5ZM5CN7DK","short_pith_number":"pith:4FI6LSE7","canonical_record":{"source":{"id":"2508.09682","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2025-08-13T10:21:34Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"af1d7b2c11fe161689a254a2bb86756accc48dfdebadb517d4e41944d06deb12","abstract_canon_sha256":"5fe8cdf28e96022750aa8ff8868f4dea567dc108f5984351e09875cf80a95127"},"schema_version":"1.0"},"canonical_sha256":"e151e5c89fd66784a9574f72ce89bf1a8bd9d6406bbbf96f82737e7aea4af58c","source":{"kind":"arxiv","id":"2508.09682","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.09682","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"arxiv_version","alias_value":"2508.09682v1","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.09682","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_12","alias_value":"4FI6LSE72ZTY","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_16","alias_value":"4FI6LSE72ZTYJKKX","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_8","alias_value":"4FI6LSE7","created_at":"2026-07-05T11:53:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:4FI6LSE72ZTYJKKXJ5ZM5CN7DK","target":"record","payload":{"canonical_record":{"source":{"id":"2508.09682","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2025-08-13T10:21:34Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"af1d7b2c11fe161689a254a2bb86756accc48dfdebadb517d4e41944d06deb12","abstract_canon_sha256":"5fe8cdf28e96022750aa8ff8868f4dea567dc108f5984351e09875cf80a95127"},"schema_version":"1.0"},"canonical_sha256":"e151e5c89fd66784a9574f72ce89bf1a8bd9d6406bbbf96f82737e7aea4af58c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:53:19.849290Z","signature_b64":"YxLbZ7QSTTSynytwMc7fx7Zu/oiuWKeRo3c1wBPJrCwuq2tKP9HgXh1P7b9658SNrEqjSbkT4nMeTmG4SGvOBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e151e5c89fd66784a9574f72ce89bf1a8bd9d6406bbbf96f82737e7aea4af58c","last_reissued_at":"2026-07-05T11:53:19.848779Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:53:19.848779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.09682","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":"2026-07-05T11:53:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IlzY4j/zPh5FmARC1kfafmmNgKPKfgj6XwfOm9X+x79C2e9VJzE4Ngow+1920fdai0ZiA5Uo2KQyYL+n9YKXAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T23:54:18.585132Z"},"content_sha256":"6383b32c842f07c797520608bc79616663648ce27e2d8085ad29502a106489d8","schema_version":"1.0","event_id":"sha256:6383b32c842f07c797520608bc79616663648ce27e2d8085ad29502a106489d8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:4FI6LSE72ZTYJKKXJ5ZM5CN7DK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Divide-and-Conquer Tiling Method for the Design of Large Aperiodic Phased Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SY"],"primary_cat":"eess.SY","authors_text":"Andrea Massa, Giovanni Toso, Nicola Anselmi, Paolo Rocca","submitted_at":"2025-08-13T10:21:34Z","abstract_excerpt":"Due to the growing request from modern wireless applications of cost-affordable and high-gain scanning antenna solutions, the design of large phased arrays (PAs) with radiating elements organized into modular clusters with sub-array-only amplitude and phase control is a key topic. In this paper, an innovative irregular tiling method is proposed where, according to a divide-and-conquer strategy, the antenna aperture is subdivided into sub-areas that are locally domino-tiled by jointly fulfilling the full-coverage condition on the remaining untiled part of the PA support. Selected representative"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.09682","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/2508.09682/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":"2026-07-05T11:53:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7AejrDqOZInqqZHSR5+Alr6tKtf/m/VosxWWJf+NGWuOkOY0+XDgUGt7Ah6ajSd9WMtvv/zrJTZHG8XUJyIfDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T23:54:18.585650Z"},"content_sha256":"82e6bc2d508f4fd383c29c5759fe1c10c3d2a63d22ae671c28c9a27e57934fe8","schema_version":"1.0","event_id":"sha256:82e6bc2d508f4fd383c29c5759fe1c10c3d2a63d22ae671c28c9a27e57934fe8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4FI6LSE72ZTYJKKXJ5ZM5CN7DK/bundle.json","state_url":"https://pith.science/pith/4FI6LSE72ZTYJKKXJ5ZM5CN7DK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4FI6LSE72ZTYJKKXJ5ZM5CN7DK/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":"2026-08-20T23:54:18Z","links":{"resolver":"https://pith.science/pith/4FI6LSE72ZTYJKKXJ5ZM5CN7DK","bundle":"https://pith.science/pith/4FI6LSE72ZTYJKKXJ5ZM5CN7DK/bundle.json","state":"https://pith.science/pith/4FI6LSE72ZTYJKKXJ5ZM5CN7DK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4FI6LSE72ZTYJKKXJ5ZM5CN7DK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4FI6LSE72ZTYJKKXJ5ZM5CN7DK","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":"5fe8cdf28e96022750aa8ff8868f4dea567dc108f5984351e09875cf80a95127","cross_cats_sorted":["cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2025-08-13T10:21:34Z","title_canon_sha256":"af1d7b2c11fe161689a254a2bb86756accc48dfdebadb517d4e41944d06deb12"},"schema_version":"1.0","source":{"id":"2508.09682","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.09682","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"arxiv_version","alias_value":"2508.09682v1","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.09682","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_12","alias_value":"4FI6LSE72ZTY","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_16","alias_value":"4FI6LSE72ZTYJKKX","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_8","alias_value":"4FI6LSE7","created_at":"2026-07-05T11:53:19Z"}],"graph_snapshots":[{"event_id":"sha256:82e6bc2d508f4fd383c29c5759fe1c10c3d2a63d22ae671c28c9a27e57934fe8","target":"graph","created_at":"2026-07-05T11:53:19Z","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/2508.09682/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Due to the growing request from modern wireless applications of cost-affordable and high-gain scanning antenna solutions, the design of large phased arrays (PAs) with radiating elements organized into modular clusters with sub-array-only amplitude and phase control is a key topic. In this paper, an innovative irregular tiling method is proposed where, according to a divide-and-conquer strategy, the antenna aperture is subdivided into sub-areas that are locally domino-tiled by jointly fulfilling the full-coverage condition on the remaining untiled part of the PA support. Selected representative","authors_text":"Andrea Massa, Giovanni Toso, Nicola Anselmi, Paolo Rocca","cross_cats":["cs.SY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2025-08-13T10:21:34Z","title":"A Divide-and-Conquer Tiling Method for the Design of Large Aperiodic Phased Arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.09682","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":"sha256:6383b32c842f07c797520608bc79616663648ce27e2d8085ad29502a106489d8","target":"record","created_at":"2026-07-05T11:53:19Z","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":"5fe8cdf28e96022750aa8ff8868f4dea567dc108f5984351e09875cf80a95127","cross_cats_sorted":["cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2025-08-13T10:21:34Z","title_canon_sha256":"af1d7b2c11fe161689a254a2bb86756accc48dfdebadb517d4e41944d06deb12"},"schema_version":"1.0","source":{"id":"2508.09682","kind":"arxiv","version":1}},"canonical_sha256":"e151e5c89fd66784a9574f72ce89bf1a8bd9d6406bbbf96f82737e7aea4af58c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e151e5c89fd66784a9574f72ce89bf1a8bd9d6406bbbf96f82737e7aea4af58c","first_computed_at":"2026-07-05T11:53:19.848779Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:53:19.848779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YxLbZ7QSTTSynytwMc7fx7Zu/oiuWKeRo3c1wBPJrCwuq2tKP9HgXh1P7b9658SNrEqjSbkT4nMeTmG4SGvOBw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:53:19.849290Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.09682","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6383b32c842f07c797520608bc79616663648ce27e2d8085ad29502a106489d8","sha256:82e6bc2d508f4fd383c29c5759fe1c10c3d2a63d22ae671c28c9a27e57934fe8"],"state_sha256":"edb1e295cf4f13fc33673c2610b7fc905205dcb1ffb2918bb6fcb91d64574488"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K/c4w54MWZbww9IgZXhmIjx5d0Xsds5JZrhCgcv3qwzdwuGcM6q7eR8WcM8m3xqlg9ZCn1E3mdI/7R+9iwM9Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T23:54:18.590504Z","bundle_sha256":"fa3083732803a0d95f478513c74840d50e841beb3e9d07fd4834dacd1024ce3f"}}