{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:SOV2HH52ZDKV6SNZYJDX2TKKVI","short_pith_number":"pith:SOV2HH52","canonical_record":{"source":{"id":"1904.00453","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-31T17:48:14Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"be0763c09ea461c44ae68e68246341ada5aca217a02b73777033a1e706eff3c6","abstract_canon_sha256":"43375bd7d09139ee6fbdc3b3e5bb38b3977ddbbe215cd14cd697840518f3cabb"},"schema_version":"1.0"},"canonical_sha256":"93aba39fbac8d55f49b9c2477d4d4aaa22991927fbf4d5f0a17fdcea8cf2f195","source":{"kind":"arxiv","id":"1904.00453","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.00453","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"arxiv_version","alias_value":"1904.00453v3","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.00453","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"pith_short_12","alias_value":"SOV2HH52ZDKV","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"pith_short_16","alias_value":"SOV2HH52ZDKV6SNZ","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"pith_short_8","alias_value":"SOV2HH52","created_at":"2026-07-05T02:10:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:SOV2HH52ZDKV6SNZYJDX2TKKVI","target":"record","payload":{"canonical_record":{"source":{"id":"1904.00453","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-31T17:48:14Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"be0763c09ea461c44ae68e68246341ada5aca217a02b73777033a1e706eff3c6","abstract_canon_sha256":"43375bd7d09139ee6fbdc3b3e5bb38b3977ddbbe215cd14cd697840518f3cabb"},"schema_version":"1.0"},"canonical_sha256":"93aba39fbac8d55f49b9c2477d4d4aaa22991927fbf4d5f0a17fdcea8cf2f195","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:10:22.744612Z","signature_b64":"vxqro2nFQTOuqPQmvAWEGNBh31RYwnI5wXHEZUEPmwhFzALN5mqBNIv68u0jLZrddRrc7HxL+UOQyzgR+nvuDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"93aba39fbac8d55f49b9c2477d4d4aaa22991927fbf4d5f0a17fdcea8cf2f195","last_reissued_at":"2026-07-05T02:10:22.744266Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:10:22.744266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.00453","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:10:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ZVnhWyfLo/chSoOhwLdC5HnQ0H/0VmC3QM9ShVsTz3xz/xt/PArk5pJWcbFucWKHVhxNGH2pMG6za2mYCWFDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T22:39:02.136786Z"},"content_sha256":"2d7cb5e4632e294f2caca4216430ce1dfefbac04e5ffdb22be330e9859d5e974","schema_version":"1.0","event_id":"sha256:2d7cb5e4632e294f2caca4216430ce1dfefbac04e5ffdb22be330e9859d5e974"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:SOV2HH52ZDKV6SNZYJDX2TKKVI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Performance Analysis of Active Large Intelligent Surfaces (LISs): Uplink Spectral Efficiency and Pilot Training","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Gyuyeol Kong, Minchae Jung, Walid Saad","submitted_at":"2019-03-31T17:48:14Z","abstract_excerpt":"Large intelligent surfaces (LISs) constitute a new and promising wireless communication paradigm that relies on the integration of a massive number of antenna elements over the entire surfaces of man-made structures. The LIS concept provides many advantages, such as the capability to provide reliable and space-intensive communications by effectively establishing line-of-sight (LOS) channels. In this paper, the system spectral efficiency (SSE) of an uplink LIS system is asymptotically analyzed under a practical LIS environment with a well-defined uplink frame structure. In order to verify the i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.00453","kind":"arxiv","version":3},"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/1904.00453/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":"2026-07-05T02:10:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1XsHl7gXv6RqnTn9ECD1KxR8OT+dFb8dAM9UFzUk26UIG4Nmx3rCICgq1wNGiPR3eMs9U/rtawScG/s3HOtACw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T22:39:02.137304Z"},"content_sha256":"70b6dd1bf5b9517a4ba10b30c6953c9b46509e0e9fb32b85e87579fed9d63e6c","schema_version":"1.0","event_id":"sha256:70b6dd1bf5b9517a4ba10b30c6953c9b46509e0e9fb32b85e87579fed9d63e6c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SOV2HH52ZDKV6SNZYJDX2TKKVI/bundle.json","state_url":"https://pith.science/pith/SOV2HH52ZDKV6SNZYJDX2TKKVI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SOV2HH52ZDKV6SNZYJDX2TKKVI/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":"2026-08-15T22:39:02Z","links":{"resolver":"https://pith.science/pith/SOV2HH52ZDKV6SNZYJDX2TKKVI","bundle":"https://pith.science/pith/SOV2HH52ZDKV6SNZYJDX2TKKVI/bundle.json","state":"https://pith.science/pith/SOV2HH52ZDKV6SNZYJDX2TKKVI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SOV2HH52ZDKV6SNZYJDX2TKKVI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:SOV2HH52ZDKV6SNZYJDX2TKKVI","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":"43375bd7d09139ee6fbdc3b3e5bb38b3977ddbbe215cd14cd697840518f3cabb","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-31T17:48:14Z","title_canon_sha256":"be0763c09ea461c44ae68e68246341ada5aca217a02b73777033a1e706eff3c6"},"schema_version":"1.0","source":{"id":"1904.00453","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.00453","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"arxiv_version","alias_value":"1904.00453v3","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.00453","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"pith_short_12","alias_value":"SOV2HH52ZDKV","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"pith_short_16","alias_value":"SOV2HH52ZDKV6SNZ","created_at":"2026-07-05T02:10:22Z"},{"alias_kind":"pith_short_8","alias_value":"SOV2HH52","created_at":"2026-07-05T02:10:22Z"}],"graph_snapshots":[{"event_id":"sha256:70b6dd1bf5b9517a4ba10b30c6953c9b46509e0e9fb32b85e87579fed9d63e6c","target":"graph","created_at":"2026-07-05T02:10:22Z","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/1904.00453/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large intelligent surfaces (LISs) constitute a new and promising wireless communication paradigm that relies on the integration of a massive number of antenna elements over the entire surfaces of man-made structures. The LIS concept provides many advantages, such as the capability to provide reliable and space-intensive communications by effectively establishing line-of-sight (LOS) channels. In this paper, the system spectral efficiency (SSE) of an uplink LIS system is asymptotically analyzed under a practical LIS environment with a well-defined uplink frame structure. In order to verify the i","authors_text":"Gyuyeol Kong, Minchae Jung, Walid Saad","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-31T17:48:14Z","title":"Performance Analysis of Active Large Intelligent Surfaces (LISs): Uplink Spectral Efficiency and Pilot Training"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.00453","kind":"arxiv","version":3},"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":"sha256:2d7cb5e4632e294f2caca4216430ce1dfefbac04e5ffdb22be330e9859d5e974","target":"record","created_at":"2026-07-05T02:10:22Z","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":"43375bd7d09139ee6fbdc3b3e5bb38b3977ddbbe215cd14cd697840518f3cabb","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-31T17:48:14Z","title_canon_sha256":"be0763c09ea461c44ae68e68246341ada5aca217a02b73777033a1e706eff3c6"},"schema_version":"1.0","source":{"id":"1904.00453","kind":"arxiv","version":3}},"canonical_sha256":"93aba39fbac8d55f49b9c2477d4d4aaa22991927fbf4d5f0a17fdcea8cf2f195","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"93aba39fbac8d55f49b9c2477d4d4aaa22991927fbf4d5f0a17fdcea8cf2f195","first_computed_at":"2026-07-05T02:10:22.744266Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:10:22.744266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vxqro2nFQTOuqPQmvAWEGNBh31RYwnI5wXHEZUEPmwhFzALN5mqBNIv68u0jLZrddRrc7HxL+UOQyzgR+nvuDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:10:22.744612Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.00453","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d7cb5e4632e294f2caca4216430ce1dfefbac04e5ffdb22be330e9859d5e974","sha256:70b6dd1bf5b9517a4ba10b30c6953c9b46509e0e9fb32b85e87579fed9d63e6c"],"state_sha256":"3fdb4410c296142406180256efd45318915fff0ffb6c3abdecaa96bdd9a3ace9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QFVFnSZFblA1kEaQv4xesx4rZk52eq0/GV2g9bL4XuSs4NEwJWhn/M0I+pujD8FtoQfpxfZS6dRnvUmcXo0KCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T22:39:02.142356Z","bundle_sha256":"fff5521503215bc993a04f9bc78fa55d8a7aee4186eaa99cd0e12a9376963258"}}