{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:AZNE3CE2IDFZNK3ZSBKVPGBQCS","short_pith_number":"pith:AZNE3CE2","canonical_record":{"source":{"id":"2003.00906","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-02-28T02:49:36Z","cross_cats_sorted":[],"title_canon_sha256":"6d6c3cc8604c53dcb37e954058de3acee207d5149c4526f95873a705ad232882","abstract_canon_sha256":"58ca7c273b5f6e2ee9e9d3fd89a7d9129a9fb87d3f2098d722aa8007a3ac8659"},"schema_version":"1.0"},"canonical_sha256":"065a4d889a40cb96ab799055579830148a545fee72c41dcca395f177fdbabdaa","source":{"kind":"arxiv","id":"2003.00906","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.00906","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"2003.00906v2","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.00906","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"AZNE3CE2IDFZ","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"pith_short_16","alias_value":"AZNE3CE2IDFZNK3Z","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"pith_short_8","alias_value":"AZNE3CE2","created_at":"2026-07-05T01:45:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:AZNE3CE2IDFZNK3ZSBKVPGBQCS","target":"record","payload":{"canonical_record":{"source":{"id":"2003.00906","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-02-28T02:49:36Z","cross_cats_sorted":[],"title_canon_sha256":"6d6c3cc8604c53dcb37e954058de3acee207d5149c4526f95873a705ad232882","abstract_canon_sha256":"58ca7c273b5f6e2ee9e9d3fd89a7d9129a9fb87d3f2098d722aa8007a3ac8659"},"schema_version":"1.0"},"canonical_sha256":"065a4d889a40cb96ab799055579830148a545fee72c41dcca395f177fdbabdaa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:45:25.790287Z","signature_b64":"v1j9Lb64waP0JBhSvlDuW3V9YlEiGem9OAcNXBK8K+TzZiireDMQyeYKOJ1W8b8stvLjwci/4bJ9waKggg0uDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"065a4d889a40cb96ab799055579830148a545fee72c41dcca395f177fdbabdaa","last_reissued_at":"2026-07-05T01:45:25.789799Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:45:25.789799Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2003.00906","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8ZlM3txGs76HoF0fnztjcxt3N5iR6bEMhZmP3pqzWh6SiZ4y6bbf01f3294mxFoR3kHr4uZZQ+J1YMG0FNNwDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T03:27:55.751509Z"},"content_sha256":"188ef09507c4b0e7922c4209606fdcca7714aecd3e009fb9a282ae255ff3db6a","schema_version":"1.0","event_id":"sha256:188ef09507c4b0e7922c4209606fdcca7714aecd3e009fb9a282ae255ff3db6a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:AZNE3CE2IDFZNK3ZSBKVPGBQCS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Max-Min Fairness in IRS-Aided Multi-Cell MISO Systems with Joint Transmit and Reflective Beamforming","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Hailiang Xie, Jie Xu, Ya-Feng Liu","submitted_at":"2020-02-28T02:49:36Z","abstract_excerpt":"This paper investigates an intelligent reflecting surface (IRS)-aided multi-cell multiple-input single-output (MISO) system with several multi-antenna base stations (BSs) each communicating with a single-antenna user, in which an IRS is dedicatedly deployed for assisting the wireless transmission and suppressing the inter-cell interference. Under this setup, we jointly optimize the coordinated transmit beamforming at the BSs and the reflective beamforming at the IRS, for the purpose of maximizing the minimum weighted signal-to-interference-plus-noise ratio (SINR) at the users, subject to the i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.00906","kind":"arxiv","version":2},"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/2003.00906/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":"2026-07-05T01:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nk7RquE9EGNcKsW62uqZi9JJ34PKfQ//tdP0+sJag8mUv/efj0kU02uLMLVrCa9Q3ORYJCGDrP+rF8eN+uMHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T03:27:55.752001Z"},"content_sha256":"c178f59aec03c4bbf5e94a0b445e380102d68680d88b6279769e8482d0d15585","schema_version":"1.0","event_id":"sha256:c178f59aec03c4bbf5e94a0b445e380102d68680d88b6279769e8482d0d15585"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AZNE3CE2IDFZNK3ZSBKVPGBQCS/bundle.json","state_url":"https://pith.science/pith/AZNE3CE2IDFZNK3ZSBKVPGBQCS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AZNE3CE2IDFZNK3ZSBKVPGBQCS/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":"2026-08-21T03:27:55Z","links":{"resolver":"https://pith.science/pith/AZNE3CE2IDFZNK3ZSBKVPGBQCS","bundle":"https://pith.science/pith/AZNE3CE2IDFZNK3ZSBKVPGBQCS/bundle.json","state":"https://pith.science/pith/AZNE3CE2IDFZNK3ZSBKVPGBQCS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AZNE3CE2IDFZNK3ZSBKVPGBQCS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:AZNE3CE2IDFZNK3ZSBKVPGBQCS","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":"58ca7c273b5f6e2ee9e9d3fd89a7d9129a9fb87d3f2098d722aa8007a3ac8659","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-02-28T02:49:36Z","title_canon_sha256":"6d6c3cc8604c53dcb37e954058de3acee207d5149c4526f95873a705ad232882"},"schema_version":"1.0","source":{"id":"2003.00906","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.00906","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"2003.00906v2","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.00906","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"AZNE3CE2IDFZ","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"pith_short_16","alias_value":"AZNE3CE2IDFZNK3Z","created_at":"2026-07-05T01:45:25Z"},{"alias_kind":"pith_short_8","alias_value":"AZNE3CE2","created_at":"2026-07-05T01:45:25Z"}],"graph_snapshots":[{"event_id":"sha256:c178f59aec03c4bbf5e94a0b445e380102d68680d88b6279769e8482d0d15585","target":"graph","created_at":"2026-07-05T01:45:25Z","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/2003.00906/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper investigates an intelligent reflecting surface (IRS)-aided multi-cell multiple-input single-output (MISO) system with several multi-antenna base stations (BSs) each communicating with a single-antenna user, in which an IRS is dedicatedly deployed for assisting the wireless transmission and suppressing the inter-cell interference. Under this setup, we jointly optimize the coordinated transmit beamforming at the BSs and the reflective beamforming at the IRS, for the purpose of maximizing the minimum weighted signal-to-interference-plus-noise ratio (SINR) at the users, subject to the i","authors_text":"Hailiang Xie, Jie Xu, Ya-Feng Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-02-28T02:49:36Z","title":"Max-Min Fairness in IRS-Aided Multi-Cell MISO Systems with Joint Transmit and Reflective Beamforming"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.00906","kind":"arxiv","version":2},"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":"sha256:188ef09507c4b0e7922c4209606fdcca7714aecd3e009fb9a282ae255ff3db6a","target":"record","created_at":"2026-07-05T01:45:25Z","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":"58ca7c273b5f6e2ee9e9d3fd89a7d9129a9fb87d3f2098d722aa8007a3ac8659","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-02-28T02:49:36Z","title_canon_sha256":"6d6c3cc8604c53dcb37e954058de3acee207d5149c4526f95873a705ad232882"},"schema_version":"1.0","source":{"id":"2003.00906","kind":"arxiv","version":2}},"canonical_sha256":"065a4d889a40cb96ab799055579830148a545fee72c41dcca395f177fdbabdaa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"065a4d889a40cb96ab799055579830148a545fee72c41dcca395f177fdbabdaa","first_computed_at":"2026-07-05T01:45:25.789799Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:45:25.789799Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v1j9Lb64waP0JBhSvlDuW3V9YlEiGem9OAcNXBK8K+TzZiireDMQyeYKOJ1W8b8stvLjwci/4bJ9waKggg0uDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:45:25.790287Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.00906","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:188ef09507c4b0e7922c4209606fdcca7714aecd3e009fb9a282ae255ff3db6a","sha256:c178f59aec03c4bbf5e94a0b445e380102d68680d88b6279769e8482d0d15585"],"state_sha256":"d349351f0ed054b5132680529f30f515d8936b998fb01348b1860cc596e060e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MUhRZuJVT+MdueeXPd8xVkJLCt+J1bOsTxWpugfyQb9nsOo7TCkO4Xeq+saPFc7uiD5BOBhfnm51dO6NRbaIDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T03:27:55.756996Z","bundle_sha256":"3111af4ccae3dc05e45c97c49f39e9ede8d56083361d3c2a7ea8a3f13619e01e"}}