{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:2K4EUPNFHETZRYYMEZI2KV5BNH","short_pith_number":"pith:2K4EUPNF","canonical_record":{"source":{"id":"1910.14359","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-10-31T10:47:39Z","cross_cats_sorted":[],"title_canon_sha256":"04759ef89731c388bce9c487be502b024ea8e8add33d6fa07d1ed2903eb59e04","abstract_canon_sha256":"03fc5fa34754bbdd0118e62f01adeaa04a3045bb6e5c50d834a560f2eb443472"},"schema_version":"1.0"},"canonical_sha256":"d2b84a3da5392798e30c2651a557a169f14931cc439b2b43bd77035bb9fe684d","source":{"kind":"arxiv","id":"1910.14359","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.14359","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"arxiv_version","alias_value":"1910.14359v2","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.14359","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"pith_short_12","alias_value":"2K4EUPNFHETZ","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"pith_short_16","alias_value":"2K4EUPNFHETZRYYM","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"pith_short_8","alias_value":"2K4EUPNF","created_at":"2026-07-05T00:38:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:2K4EUPNFHETZRYYMEZI2KV5BNH","target":"record","payload":{"canonical_record":{"source":{"id":"1910.14359","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-10-31T10:47:39Z","cross_cats_sorted":[],"title_canon_sha256":"04759ef89731c388bce9c487be502b024ea8e8add33d6fa07d1ed2903eb59e04","abstract_canon_sha256":"03fc5fa34754bbdd0118e62f01adeaa04a3045bb6e5c50d834a560f2eb443472"},"schema_version":"1.0"},"canonical_sha256":"d2b84a3da5392798e30c2651a557a169f14931cc439b2b43bd77035bb9fe684d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:38:06.343648Z","signature_b64":"wlyRHyaw+o5BXL65B+ymZMuJ62Zks9SjlPPE+YC5k5Ldkw4BuPDNKkmY1p8n8XsunIyJ3By2GK6+ZURNjb5eAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2b84a3da5392798e30c2651a557a169f14931cc439b2b43bd77035bb9fe684d","last_reissued_at":"2026-07-05T00:38:06.343138Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:38:06.343138Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.14359","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":"2026-07-05T00:38:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aXkFzgeSWg9KvlwD4ICkpC0sotN+Q9KWAwTaTqXhnFg7d+mCiNO5f2vtQmo8gLAR+uN9NqUi498Oj4jIZTdgDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T08:43:40.070739Z"},"content_sha256":"268bd70188c3e8ea464ae417b045462249233246f36a0c124b9281d463050221","schema_version":"1.0","event_id":"sha256:268bd70188c3e8ea464ae417b045462249233246f36a0c124b9281d463050221"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:2K4EUPNFHETZRYYMEZI2KV5BNH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Initial Access Optimization Algorithm for millimeter Wave 5G NR Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"A. Indika Perera, K. B. Shashika Manosha, Matti Latva-aho, Nandana Rajatheva","submitted_at":"2019-10-31T10:47:39Z","abstract_excerpt":"The millimeter wave (mmWave) communication uses directional antennas. Hence, achieving fine alignment of transmit and receive beams at the initial access phase is quite challenging and time-consuming. In this paper, we provide a dynamic-weight based beam sweeping direction and synchronization signal block (SSB) allocation algorithm to optimize the cell search of the initial access in mmWave 5G NR networks. The number of SSBs transmitted in each beam sweeping direction depends on previously learned experience which is based on the number of detected UEs (user equipment) per SSB for each sweepin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.14359","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/1910.14359/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":"2026-07-05T00:38:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MWJ9BM9qbMxaLIMyel/Iiqgo71Z3SzZvVe2/2CH80lfGliBu1NnXfMz8YHHmOP6zKW6JYqe8FUv+yDlLWQOQDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T08:43:40.071113Z"},"content_sha256":"afdb545964b5e30b70c0cc5efb0d6c149f6b1ea5b18ce302f37a29b32135a079","schema_version":"1.0","event_id":"sha256:afdb545964b5e30b70c0cc5efb0d6c149f6b1ea5b18ce302f37a29b32135a079"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2K4EUPNFHETZRYYMEZI2KV5BNH/bundle.json","state_url":"https://pith.science/pith/2K4EUPNFHETZRYYMEZI2KV5BNH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2K4EUPNFHETZRYYMEZI2KV5BNH/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":"2026-07-06T08:43:40Z","links":{"resolver":"https://pith.science/pith/2K4EUPNFHETZRYYMEZI2KV5BNH","bundle":"https://pith.science/pith/2K4EUPNFHETZRYYMEZI2KV5BNH/bundle.json","state":"https://pith.science/pith/2K4EUPNFHETZRYYMEZI2KV5BNH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2K4EUPNFHETZRYYMEZI2KV5BNH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:2K4EUPNFHETZRYYMEZI2KV5BNH","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":"03fc5fa34754bbdd0118e62f01adeaa04a3045bb6e5c50d834a560f2eb443472","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-10-31T10:47:39Z","title_canon_sha256":"04759ef89731c388bce9c487be502b024ea8e8add33d6fa07d1ed2903eb59e04"},"schema_version":"1.0","source":{"id":"1910.14359","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.14359","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"arxiv_version","alias_value":"1910.14359v2","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.14359","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"pith_short_12","alias_value":"2K4EUPNFHETZ","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"pith_short_16","alias_value":"2K4EUPNFHETZRYYM","created_at":"2026-07-05T00:38:06Z"},{"alias_kind":"pith_short_8","alias_value":"2K4EUPNF","created_at":"2026-07-05T00:38:06Z"}],"graph_snapshots":[{"event_id":"sha256:afdb545964b5e30b70c0cc5efb0d6c149f6b1ea5b18ce302f37a29b32135a079","target":"graph","created_at":"2026-07-05T00:38:06Z","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/1910.14359/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The millimeter wave (mmWave) communication uses directional antennas. Hence, achieving fine alignment of transmit and receive beams at the initial access phase is quite challenging and time-consuming. In this paper, we provide a dynamic-weight based beam sweeping direction and synchronization signal block (SSB) allocation algorithm to optimize the cell search of the initial access in mmWave 5G NR networks. The number of SSBs transmitted in each beam sweeping direction depends on previously learned experience which is based on the number of detected UEs (user equipment) per SSB for each sweepin","authors_text":"A. Indika Perera, K. B. Shashika Manosha, Matti Latva-aho, Nandana Rajatheva","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-10-31T10:47:39Z","title":"An Initial Access Optimization Algorithm for millimeter Wave 5G NR Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.14359","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":"sha256:268bd70188c3e8ea464ae417b045462249233246f36a0c124b9281d463050221","target":"record","created_at":"2026-07-05T00:38:06Z","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":"03fc5fa34754bbdd0118e62f01adeaa04a3045bb6e5c50d834a560f2eb443472","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-10-31T10:47:39Z","title_canon_sha256":"04759ef89731c388bce9c487be502b024ea8e8add33d6fa07d1ed2903eb59e04"},"schema_version":"1.0","source":{"id":"1910.14359","kind":"arxiv","version":2}},"canonical_sha256":"d2b84a3da5392798e30c2651a557a169f14931cc439b2b43bd77035bb9fe684d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2b84a3da5392798e30c2651a557a169f14931cc439b2b43bd77035bb9fe684d","first_computed_at":"2026-07-05T00:38:06.343138Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:38:06.343138Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wlyRHyaw+o5BXL65B+ymZMuJ62Zks9SjlPPE+YC5k5Ldkw4BuPDNKkmY1p8n8XsunIyJ3By2GK6+ZURNjb5eAg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:38:06.343648Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.14359","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:268bd70188c3e8ea464ae417b045462249233246f36a0c124b9281d463050221","sha256:afdb545964b5e30b70c0cc5efb0d6c149f6b1ea5b18ce302f37a29b32135a079"],"state_sha256":"cf06da2d0fc8b19a1663b6784918fa5d1cf2d402dbae92ffe3ed0eecdf184e71"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n/Xc+ODQ6v+K5CF6G6968HN3g7NVWVkgtEtmbVvy0isUAYgxlbhjhth0tAeWWLodWw+0DAZVBIUfBMTp9DVEAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T08:43:40.073032Z","bundle_sha256":"7dbd120f0e5d3df11a73b4eea0deb0c54ca5ab60e6dfe0bd9155e41a84a8d3c9"}}