{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:YGIFK27V4MBBCZXYIVUKLLNCJM","short_pith_number":"pith:YGIFK27V","canonical_record":{"source":{"id":"2307.16259","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2023-07-30T15:43:32Z","cross_cats_sorted":["cs.NI","eess.SP","math.IT"],"title_canon_sha256":"4038f8106e6afcf9bf7ff561c5dd66aaccb6fee70b744e0b485d0b51755eb75f","abstract_canon_sha256":"15a309a24d56de06487322a973d88ba470de693b319b15581632e9341e05525c"},"schema_version":"1.0"},"canonical_sha256":"c190556bf5e3021166f84568a5ada24b156268077c82f4ca83a45b87d15c9d47","source":{"kind":"arxiv","id":"2307.16259","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.16259","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"arxiv_version","alias_value":"2307.16259v1","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.16259","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"pith_short_12","alias_value":"YGIFK27V4MBB","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"pith_short_16","alias_value":"YGIFK27V4MBBCZXY","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"pith_short_8","alias_value":"YGIFK27V","created_at":"2026-07-05T06:36:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:YGIFK27V4MBBCZXYIVUKLLNCJM","target":"record","payload":{"canonical_record":{"source":{"id":"2307.16259","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2023-07-30T15:43:32Z","cross_cats_sorted":["cs.NI","eess.SP","math.IT"],"title_canon_sha256":"4038f8106e6afcf9bf7ff561c5dd66aaccb6fee70b744e0b485d0b51755eb75f","abstract_canon_sha256":"15a309a24d56de06487322a973d88ba470de693b319b15581632e9341e05525c"},"schema_version":"1.0"},"canonical_sha256":"c190556bf5e3021166f84568a5ada24b156268077c82f4ca83a45b87d15c9d47","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:36:01.011870Z","signature_b64":"yoABteur2d/ZZirRK/Nl2ZwaifegPaMF6G9R3LJoCHjAQPvKfBNDSB6UmGMkAPTDYfEgRU78+3VptMi8GJKwDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c190556bf5e3021166f84568a5ada24b156268077c82f4ca83a45b87d15c9d47","last_reissued_at":"2026-07-05T06:36:01.011387Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:36:01.011387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.16259","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":"2026-07-05T06:36:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aftwJy9RKF+vSw4OpJCLd65BZbifrpovFBYab5Sv0KWrCTCFW48XKWAEyO4yxlofTcYwEBHXywQ00KXrBH6XCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T16:25:27.137879Z"},"content_sha256":"1e8fb71e806de8d866460be923c81fda52db2dbeb8f466444ff2f8e11394a35a","schema_version":"1.0","event_id":"sha256:1e8fb71e806de8d866460be923c81fda52db2dbeb8f466444ff2f8e11394a35a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:YGIFK27V4MBBCZXYIVUKLLNCJM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Communication-Sensing Region for Cell-Free Massive MIMO ISAC Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NI","eess.SP","math.IT"],"primary_cat":"cs.IT","authors_text":"Bo Ai, Chong-Yung Chi, Weihao Mao, Yang Lu, Zhangdui Zhong, Zhiguo Ding","submitted_at":"2023-07-30T15:43:32Z","abstract_excerpt":"This paper investigates the system model and the transmit beamforming design for the Cell-Free massive multi-input multi-output (MIMO) integrated sensing and communication (ISAC) system. The impact of the uncertainty of the target locations on the propagation of wireless signals is considered during both uplink and downlink phases, and especially, the main statistics of the MIMO channel estimation error are theoretically derived in the closed-form fashion. A fundamental performance metric, termed communication-sensing (C-S) region, is defined for the considered system via three cases, i.e., th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.16259","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/2307.16259/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":"2026-07-05T06:36:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kb0HGwdhDfbQTdYBjAWgMsQ67UA3QfZkwXu9HiitIP0/cG4vsojNot6FMKfM8+H0cXAghUHmUkybQZRjV5VaCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T16:25:27.138365Z"},"content_sha256":"0c0f7c37977f05119c8d5f8229021f99d19035d3a51ce8409df3368ec02317e7","schema_version":"1.0","event_id":"sha256:0c0f7c37977f05119c8d5f8229021f99d19035d3a51ce8409df3368ec02317e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YGIFK27V4MBBCZXYIVUKLLNCJM/bundle.json","state_url":"https://pith.science/pith/YGIFK27V4MBBCZXYIVUKLLNCJM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YGIFK27V4MBBCZXYIVUKLLNCJM/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":"2026-08-14T16:25:27Z","links":{"resolver":"https://pith.science/pith/YGIFK27V4MBBCZXYIVUKLLNCJM","bundle":"https://pith.science/pith/YGIFK27V4MBBCZXYIVUKLLNCJM/bundle.json","state":"https://pith.science/pith/YGIFK27V4MBBCZXYIVUKLLNCJM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YGIFK27V4MBBCZXYIVUKLLNCJM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:YGIFK27V4MBBCZXYIVUKLLNCJM","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":"15a309a24d56de06487322a973d88ba470de693b319b15581632e9341e05525c","cross_cats_sorted":["cs.NI","eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2023-07-30T15:43:32Z","title_canon_sha256":"4038f8106e6afcf9bf7ff561c5dd66aaccb6fee70b744e0b485d0b51755eb75f"},"schema_version":"1.0","source":{"id":"2307.16259","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.16259","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"arxiv_version","alias_value":"2307.16259v1","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.16259","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"pith_short_12","alias_value":"YGIFK27V4MBB","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"pith_short_16","alias_value":"YGIFK27V4MBBCZXY","created_at":"2026-07-05T06:36:01Z"},{"alias_kind":"pith_short_8","alias_value":"YGIFK27V","created_at":"2026-07-05T06:36:01Z"}],"graph_snapshots":[{"event_id":"sha256:0c0f7c37977f05119c8d5f8229021f99d19035d3a51ce8409df3368ec02317e7","target":"graph","created_at":"2026-07-05T06:36:01Z","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/2307.16259/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper investigates the system model and the transmit beamforming design for the Cell-Free massive multi-input multi-output (MIMO) integrated sensing and communication (ISAC) system. The impact of the uncertainty of the target locations on the propagation of wireless signals is considered during both uplink and downlink phases, and especially, the main statistics of the MIMO channel estimation error are theoretically derived in the closed-form fashion. A fundamental performance metric, termed communication-sensing (C-S) region, is defined for the considered system via three cases, i.e., th","authors_text":"Bo Ai, Chong-Yung Chi, Weihao Mao, Yang Lu, Zhangdui Zhong, Zhiguo Ding","cross_cats":["cs.NI","eess.SP","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2023-07-30T15:43:32Z","title":"Communication-Sensing Region for Cell-Free Massive MIMO ISAC Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.16259","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":"sha256:1e8fb71e806de8d866460be923c81fda52db2dbeb8f466444ff2f8e11394a35a","target":"record","created_at":"2026-07-05T06:36:01Z","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":"15a309a24d56de06487322a973d88ba470de693b319b15581632e9341e05525c","cross_cats_sorted":["cs.NI","eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2023-07-30T15:43:32Z","title_canon_sha256":"4038f8106e6afcf9bf7ff561c5dd66aaccb6fee70b744e0b485d0b51755eb75f"},"schema_version":"1.0","source":{"id":"2307.16259","kind":"arxiv","version":1}},"canonical_sha256":"c190556bf5e3021166f84568a5ada24b156268077c82f4ca83a45b87d15c9d47","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c190556bf5e3021166f84568a5ada24b156268077c82f4ca83a45b87d15c9d47","first_computed_at":"2026-07-05T06:36:01.011387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:36:01.011387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yoABteur2d/ZZirRK/Nl2ZwaifegPaMF6G9R3LJoCHjAQPvKfBNDSB6UmGMkAPTDYfEgRU78+3VptMi8GJKwDA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:36:01.011870Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.16259","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e8fb71e806de8d866460be923c81fda52db2dbeb8f466444ff2f8e11394a35a","sha256:0c0f7c37977f05119c8d5f8229021f99d19035d3a51ce8409df3368ec02317e7"],"state_sha256":"036c15259c82fd5685ba03310cb617a5d3f6e21cbb24a2fbdcd31913ce482e63"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TqglHvt76YKuATqaToiNn9Fa6r2ljECHVD7S29+bQXjBhlp2ahQDqpgu8y5MU/TeiSx7vYAXgRL7Bdby6PqKDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T16:25:27.142783Z","bundle_sha256":"9316333475f97d43d67fa679ef44f1a8991ed3a44a314a15d82410d1a8f611f6"}}