{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:XQEXXC3BI66O5LROBCA7CIVXBI","short_pith_number":"pith:XQEXXC3B","canonical_record":{"source":{"id":"2507.19177","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2025-07-25T11:36:56Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"d799fa4ea875f760341f257970db1e83d9df758aeb4bc87930659584fa670acc","abstract_canon_sha256":"7ff13de5895de96fa1d41046b80d985a3cacf6916d626749e6e967c03337ea11"},"schema_version":"1.0"},"canonical_sha256":"bc097b8b6147bceeae2e0881f122b70a30a09f04ee080c7c1fa2c880a4662c95","source":{"kind":"arxiv","id":"2507.19177","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.19177","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"arxiv_version","alias_value":"2507.19177v1","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.19177","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"pith_short_12","alias_value":"XQEXXC3BI66O","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"pith_short_16","alias_value":"XQEXXC3BI66O5LRO","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"pith_short_8","alias_value":"XQEXXC3B","created_at":"2026-07-05T11:43:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:XQEXXC3BI66O5LROBCA7CIVXBI","target":"record","payload":{"canonical_record":{"source":{"id":"2507.19177","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2025-07-25T11:36:56Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"d799fa4ea875f760341f257970db1e83d9df758aeb4bc87930659584fa670acc","abstract_canon_sha256":"7ff13de5895de96fa1d41046b80d985a3cacf6916d626749e6e967c03337ea11"},"schema_version":"1.0"},"canonical_sha256":"bc097b8b6147bceeae2e0881f122b70a30a09f04ee080c7c1fa2c880a4662c95","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:43:20.839618Z","signature_b64":"CpUuEmWPFv/XtXfz9t8qWtH2wFxNSsYd+hzO4rq26QEndkwNabmD0L/nxpYvZkBlcGPzYn0LCgP09Bz7PT92BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc097b8b6147bceeae2e0881f122b70a30a09f04ee080c7c1fa2c880a4662c95","last_reissued_at":"2026-07-05T11:43:20.839140Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:43:20.839140Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.19177","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":"2026-07-05T11:43:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RPs333ufe/xUv8mbXPA90L+ZXRBV3rC2rcI9TUKXy08DlAbZ7Am4EMMNqniyHWByCScFh/1pg5zMvmnHhqq/Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T09:01:54.024007Z"},"content_sha256":"fefa7c96843c2cd5947171bcc30cf61cad1d0d01305f4bd1c02b42d0c9468c28","schema_version":"1.0","event_id":"sha256:fefa7c96843c2cd5947171bcc30cf61cad1d0d01305f4bd1c02b42d0c9468c28"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:XQEXXC3BI66O5LROBCA7CIVXBI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Achievable Rates for a Distributed Antenna System with No Channel State Information at the Central Processor","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Giuseppe Caire, Hao Xu, Kai-Kit Wong, Kai Wan, Shlomo Shamai (Shitz), Yi Song","submitted_at":"2025-07-25T11:36:56Z","abstract_excerpt":"A recent trend in wireless communications considers the migration of traditional monolithic base stations to the so-called disaggregated architecture, where radio units (RUs) implement only the low-level physical layer functionalities such as demodulation, and A/D conversion, while the high-level physical layer, such as channel decoding, is implemented as software-defined functions running on general-purpose hardware in some remote central processing unit (CP). The corresponding information theoretic model for the uplink (from the wireless users to the CP) is a multiaccess-relay channel with p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.19177","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/2507.19177/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":"2026-07-05T11:43:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oycfIY67LOybVl0Mc/WteawAMlVMq80ruiOVp7rddrWYsFN1Dw3CbZglLFaKayOM64FsjE2P9gk3Arcgl0WXCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T09:01:54.024376Z"},"content_sha256":"c0ea28c322a39a45094f605fd0cb49c348f937228f7812bca4395781dab659c1","schema_version":"1.0","event_id":"sha256:c0ea28c322a39a45094f605fd0cb49c348f937228f7812bca4395781dab659c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XQEXXC3BI66O5LROBCA7CIVXBI/bundle.json","state_url":"https://pith.science/pith/XQEXXC3BI66O5LROBCA7CIVXBI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XQEXXC3BI66O5LROBCA7CIVXBI/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":"2026-07-13T09:01:54Z","links":{"resolver":"https://pith.science/pith/XQEXXC3BI66O5LROBCA7CIVXBI","bundle":"https://pith.science/pith/XQEXXC3BI66O5LROBCA7CIVXBI/bundle.json","state":"https://pith.science/pith/XQEXXC3BI66O5LROBCA7CIVXBI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XQEXXC3BI66O5LROBCA7CIVXBI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:XQEXXC3BI66O5LROBCA7CIVXBI","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":"7ff13de5895de96fa1d41046b80d985a3cacf6916d626749e6e967c03337ea11","cross_cats_sorted":["math.IT"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2025-07-25T11:36:56Z","title_canon_sha256":"d799fa4ea875f760341f257970db1e83d9df758aeb4bc87930659584fa670acc"},"schema_version":"1.0","source":{"id":"2507.19177","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.19177","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"arxiv_version","alias_value":"2507.19177v1","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.19177","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"pith_short_12","alias_value":"XQEXXC3BI66O","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"pith_short_16","alias_value":"XQEXXC3BI66O5LRO","created_at":"2026-07-05T11:43:20Z"},{"alias_kind":"pith_short_8","alias_value":"XQEXXC3B","created_at":"2026-07-05T11:43:20Z"}],"graph_snapshots":[{"event_id":"sha256:c0ea28c322a39a45094f605fd0cb49c348f937228f7812bca4395781dab659c1","target":"graph","created_at":"2026-07-05T11:43:20Z","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/2507.19177/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A recent trend in wireless communications considers the migration of traditional monolithic base stations to the so-called disaggregated architecture, where radio units (RUs) implement only the low-level physical layer functionalities such as demodulation, and A/D conversion, while the high-level physical layer, such as channel decoding, is implemented as software-defined functions running on general-purpose hardware in some remote central processing unit (CP). The corresponding information theoretic model for the uplink (from the wireless users to the CP) is a multiaccess-relay channel with p","authors_text":"Giuseppe Caire, Hao Xu, Kai-Kit Wong, Kai Wan, Shlomo Shamai (Shitz), Yi Song","cross_cats":["math.IT"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2025-07-25T11:36:56Z","title":"Achievable Rates for a Distributed Antenna System with No Channel State Information at the Central Processor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.19177","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:fefa7c96843c2cd5947171bcc30cf61cad1d0d01305f4bd1c02b42d0c9468c28","target":"record","created_at":"2026-07-05T11:43:20Z","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":"7ff13de5895de96fa1d41046b80d985a3cacf6916d626749e6e967c03337ea11","cross_cats_sorted":["math.IT"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2025-07-25T11:36:56Z","title_canon_sha256":"d799fa4ea875f760341f257970db1e83d9df758aeb4bc87930659584fa670acc"},"schema_version":"1.0","source":{"id":"2507.19177","kind":"arxiv","version":1}},"canonical_sha256":"bc097b8b6147bceeae2e0881f122b70a30a09f04ee080c7c1fa2c880a4662c95","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc097b8b6147bceeae2e0881f122b70a30a09f04ee080c7c1fa2c880a4662c95","first_computed_at":"2026-07-05T11:43:20.839140Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:43:20.839140Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CpUuEmWPFv/XtXfz9t8qWtH2wFxNSsYd+hzO4rq26QEndkwNabmD0L/nxpYvZkBlcGPzYn0LCgP09Bz7PT92BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:43:20.839618Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.19177","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fefa7c96843c2cd5947171bcc30cf61cad1d0d01305f4bd1c02b42d0c9468c28","sha256:c0ea28c322a39a45094f605fd0cb49c348f937228f7812bca4395781dab659c1"],"state_sha256":"ecc8c6e55129c5d1a4081c29da9e81df8d4624b27de7ca990b69852706f943ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DKC8Vbfq3bBaqghZENh1Q0b/QmkZ0u/KL46sjiWWxbVdIEaKaxQSHHmbTGFNR2aoUQUOs6XMP957D/MUPoJTDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-13T09:01:54.026412Z","bundle_sha256":"b1f687b502d017068c83db145fb0c368aacb620972322130b77f2cb2aa2e1c12"}}