{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:WHBVMJLL73GKEHYUINLXFAU34O","short_pith_number":"pith:WHBVMJLL","canonical_record":{"source":{"id":"1312.4921","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-12-17T19:58:25Z","cross_cats_sorted":[],"title_canon_sha256":"c999b61a87311ea3e27693eca1d3a7e7378699f0e2e8a664df1512391c305776","abstract_canon_sha256":"1da635c0af78ebba0bc1dbab67f0f8582efde513b0d2fca26fb6c4c8b20f1494"},"schema_version":"1.0"},"canonical_sha256":"b1c356256bfecca21f14435772829be398323e2b71dcc7ad4d03a963bbf06963","source":{"kind":"arxiv","id":"1312.4921","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.4921","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"arxiv_version","alias_value":"1312.4921v3","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.4921","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"pith_short_12","alias_value":"WHBVMJLL73GK","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WHBVMJLL73GKEHYU","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WHBVMJLL","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:WHBVMJLL73GKEHYUINLXFAU34O","target":"record","payload":{"canonical_record":{"source":{"id":"1312.4921","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-12-17T19:58:25Z","cross_cats_sorted":[],"title_canon_sha256":"c999b61a87311ea3e27693eca1d3a7e7378699f0e2e8a664df1512391c305776","abstract_canon_sha256":"1da635c0af78ebba0bc1dbab67f0f8582efde513b0d2fca26fb6c4c8b20f1494"},"schema_version":"1.0"},"canonical_sha256":"b1c356256bfecca21f14435772829be398323e2b71dcc7ad4d03a963bbf06963","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:53:07.604118Z","signature_b64":"tkFNLdFGPzJTSrTG+PahqO+kYbIGAkYCIhSG2o7yhCkq3fCcU03uHzEiP1AsQFUxhZY28LfkRdU+qpwPuFTcDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1c356256bfecca21f14435772829be398323e2b71dcc7ad4d03a963bbf06963","last_reissued_at":"2026-05-18T02:53:07.603620Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:53:07.603620Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.4921","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":"2026-05-18T02:53:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gqfQznkeNwyZOduQczuQVD1FrNI/TaPEFJGHPZy2frALclUY67jEVeA46WsV6VB3625VtQ4pDTTOdVDtI8kyAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:20:00.904163Z"},"content_sha256":"d36f5c21415ae1b4e3936a4ae1e1e40b79b566bdbdc891b1b032ca4afdbde93c","schema_version":"1.0","event_id":"sha256:d36f5c21415ae1b4e3936a4ae1e1e40b79b566bdbdc891b1b032ca4afdbde93c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:WHBVMJLL73GKEHYUINLXFAU34O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Millimeter Wave Channel Modeling and Cellular Capacity Evaluation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Elza Erkip, Mathew K. Samimi, Mustafa Riza Akdeniz, Shu Sun, Sundeep Rangan, Theodore S. Rappaport, Yuanpeng Liu","submitted_at":"2013-12-17T19:58:25Z","abstract_excerpt":"With the severe spectrum shortage in conventional cellular bands, millimeter wave (mmW) frequencies between 30 and 300 GHz have been attracting growing attention as a possible candidate for next-generation micro- and picocellular wireless networks. The mmW bands offer orders of magnitude greater spectrum than current cellular allocations and enable very high-dimensional antenna arrays for further gains via beamforming and spatial multiplexing. This paper uses recent real-world measurements at 28 and 73 GHz in New York City to derive detailed spatial statistical models of the channels and uses "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.4921","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":""},"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":"2026-05-18T02:53:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AEO7bMaaBwN7FuLlE8kgXY+JpG0T6X7K3316t5FN2QnXM80GF8dq/fUZwtT/46nPJ07nRN4w+JFQK+96lornBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:20:00.904521Z"},"content_sha256":"8852daf1653fbb3bd4500766c80a58d632aec893dfc43d518012c23e3e971ef4","schema_version":"1.0","event_id":"sha256:8852daf1653fbb3bd4500766c80a58d632aec893dfc43d518012c23e3e971ef4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WHBVMJLL73GKEHYUINLXFAU34O/bundle.json","state_url":"https://pith.science/pith/WHBVMJLL73GKEHYUINLXFAU34O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WHBVMJLL73GKEHYUINLXFAU34O/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":"2026-06-02T15:20:00Z","links":{"resolver":"https://pith.science/pith/WHBVMJLL73GKEHYUINLXFAU34O","bundle":"https://pith.science/pith/WHBVMJLL73GKEHYUINLXFAU34O/bundle.json","state":"https://pith.science/pith/WHBVMJLL73GKEHYUINLXFAU34O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WHBVMJLL73GKEHYUINLXFAU34O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:WHBVMJLL73GKEHYUINLXFAU34O","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":"1da635c0af78ebba0bc1dbab67f0f8582efde513b0d2fca26fb6c4c8b20f1494","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-12-17T19:58:25Z","title_canon_sha256":"c999b61a87311ea3e27693eca1d3a7e7378699f0e2e8a664df1512391c305776"},"schema_version":"1.0","source":{"id":"1312.4921","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.4921","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"arxiv_version","alias_value":"1312.4921v3","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.4921","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"pith_short_12","alias_value":"WHBVMJLL73GK","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WHBVMJLL73GKEHYU","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WHBVMJLL","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:8852daf1653fbb3bd4500766c80a58d632aec893dfc43d518012c23e3e971ef4","target":"graph","created_at":"2026-05-18T02:53:07Z","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"},"paper":{"abstract_excerpt":"With the severe spectrum shortage in conventional cellular bands, millimeter wave (mmW) frequencies between 30 and 300 GHz have been attracting growing attention as a possible candidate for next-generation micro- and picocellular wireless networks. The mmW bands offer orders of magnitude greater spectrum than current cellular allocations and enable very high-dimensional antenna arrays for further gains via beamforming and spatial multiplexing. This paper uses recent real-world measurements at 28 and 73 GHz in New York City to derive detailed spatial statistical models of the channels and uses ","authors_text":"Elza Erkip, Mathew K. Samimi, Mustafa Riza Akdeniz, Shu Sun, Sundeep Rangan, Theodore S. Rappaport, Yuanpeng Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-12-17T19:58:25Z","title":"Millimeter Wave Channel Modeling and Cellular Capacity Evaluation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.4921","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:d36f5c21415ae1b4e3936a4ae1e1e40b79b566bdbdc891b1b032ca4afdbde93c","target":"record","created_at":"2026-05-18T02:53:07Z","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":"1da635c0af78ebba0bc1dbab67f0f8582efde513b0d2fca26fb6c4c8b20f1494","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-12-17T19:58:25Z","title_canon_sha256":"c999b61a87311ea3e27693eca1d3a7e7378699f0e2e8a664df1512391c305776"},"schema_version":"1.0","source":{"id":"1312.4921","kind":"arxiv","version":3}},"canonical_sha256":"b1c356256bfecca21f14435772829be398323e2b71dcc7ad4d03a963bbf06963","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1c356256bfecca21f14435772829be398323e2b71dcc7ad4d03a963bbf06963","first_computed_at":"2026-05-18T02:53:07.603620Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:53:07.603620Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tkFNLdFGPzJTSrTG+PahqO+kYbIGAkYCIhSG2o7yhCkq3fCcU03uHzEiP1AsQFUxhZY28LfkRdU+qpwPuFTcDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:53:07.604118Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.4921","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d36f5c21415ae1b4e3936a4ae1e1e40b79b566bdbdc891b1b032ca4afdbde93c","sha256:8852daf1653fbb3bd4500766c80a58d632aec893dfc43d518012c23e3e971ef4"],"state_sha256":"6619a8084e09288140fc662d7cb7d19890725c82f0a85584c7a4f0cca7c0df6b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f69dx/HTd0qb4tqRxXC9gCMZhqigBEyer80zYTRBoKekbYsO0KrB/IOi7EWtR3WQI8jDAKX+V2EzUSS1oZYwDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T15:20:00.906405Z","bundle_sha256":"fa45771565c229aea1c6415381434503248ec63a7e64d9c09f0594709104211f"}}