{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:FKEV5K2HXIIE452ZZQ657RXDG6","short_pith_number":"pith:FKEV5K2H","canonical_record":{"source":{"id":"2511.10763","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2025-11-13T19:31:12Z","cross_cats_sorted":[],"title_canon_sha256":"104d00f54640acaad1753b27628747550da3c5923cab088adad13b1a0268a78a","abstract_canon_sha256":"a5c46b577ce24204f55f4eee14a1933f3b2bae9ae0666f6c023eedb2ed80d4d5"},"schema_version":"1.0"},"canonical_sha256":"2a895eab47ba104e7759cc3ddfc6e33788afeaaad28bc032dc4c149c2b895dbd","source":{"kind":"arxiv","id":"2511.10763","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2511.10763","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"arxiv_version","alias_value":"2511.10763v2","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.10763","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"pith_short_12","alias_value":"FKEV5K2HXIIE","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"pith_short_16","alias_value":"FKEV5K2HXIIE452Z","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"pith_short_8","alias_value":"FKEV5K2H","created_at":"2026-06-08T01:03:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:FKEV5K2HXIIE452ZZQ657RXDG6","target":"record","payload":{"canonical_record":{"source":{"id":"2511.10763","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2025-11-13T19:31:12Z","cross_cats_sorted":[],"title_canon_sha256":"104d00f54640acaad1753b27628747550da3c5923cab088adad13b1a0268a78a","abstract_canon_sha256":"a5c46b577ce24204f55f4eee14a1933f3b2bae9ae0666f6c023eedb2ed80d4d5"},"schema_version":"1.0"},"canonical_sha256":"2a895eab47ba104e7759cc3ddfc6e33788afeaaad28bc032dc4c149c2b895dbd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-08T01:03:51.335873Z","signature_b64":"pWG1YT04MX2pznwhjWEWvafpBWgqNJdgX6a+HPHnpFHxnpxjSH92pe2PTZwahMPS2eV+DIoG7G8BGy8JmoIrCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a895eab47ba104e7759cc3ddfc6e33788afeaaad28bc032dc4c149c2b895dbd","last_reissued_at":"2026-06-08T01:03:51.334786Z","signature_status":"signed_v1","first_computed_at":"2026-06-08T01:03:51.334786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2511.10763","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":"2026-06-08T01:03:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q+O3NmdIMrsZxbVxVOmr647a4n15xOCf+RwGrPFPqunrMwnqhxLjqO1TQs96Q7hSJK5ygOZnXqaH2lfmgceMDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T08:47:31.102814Z"},"content_sha256":"ffcdaab7e643fe7b3d551e99e13e6962074e70e3463ae3c4b6301bb979527594","schema_version":"1.0","event_id":"sha256:ffcdaab7e643fe7b3d551e99e13e6962074e70e3463ae3c4b6301bb979527594"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:FKEV5K2HXIIE452ZZQ657RXDG6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Millimeter-Wave UAV Channel Model with Height-Dependent Path Loss and Shadowing in Urban Scenarios","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Abdul Saboor, Evgenii Vinogradov","submitted_at":"2025-11-13T19:31:12Z","abstract_excerpt":"Uncrewed Aerial Vehicles (UAVs) serving as Aerial Base Stations (ABSs) are expected to extend 6G millimeter-Wave (mmWave) coverage and improve link reliability in urban areas. However, UAV-based Air-to-Ground (A2G) channels are highly dependent on height and urban geometry. This paper proposes an ABS height-dependent mmWave channel model and investigates whether urban geometry, beyond the standard built-up parameters, significantly affects LoS probability (PLoS) and Large-Scale Fading (LSF). Using MATLAB ray tracing at 26 GHz, we simulate approximately 10K city realizations for four urban layo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.10763","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/2511.10763/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":"2026-06-08T01:03:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"85wgXkZ6vLfof8L52Zh/qMvPKYOxwEcCtxfAp0ohAKomIJgxxDlTZMfwC0woBmm7ymMLJlxiJ1OEVzAshiaoDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T08:47:31.103530Z"},"content_sha256":"fc059ade45f7d7576075dfa1198df339e52164957668b43891c48731b31b1bca","schema_version":"1.0","event_id":"sha256:fc059ade45f7d7576075dfa1198df339e52164957668b43891c48731b31b1bca"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FKEV5K2HXIIE452ZZQ657RXDG6/bundle.json","state_url":"https://pith.science/pith/FKEV5K2HXIIE452ZZQ657RXDG6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FKEV5K2HXIIE452ZZQ657RXDG6/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":"2026-06-09T08:47:31Z","links":{"resolver":"https://pith.science/pith/FKEV5K2HXIIE452ZZQ657RXDG6","bundle":"https://pith.science/pith/FKEV5K2HXIIE452ZZQ657RXDG6/bundle.json","state":"https://pith.science/pith/FKEV5K2HXIIE452ZZQ657RXDG6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FKEV5K2HXIIE452ZZQ657RXDG6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:FKEV5K2HXIIE452ZZQ657RXDG6","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":"a5c46b577ce24204f55f4eee14a1933f3b2bae9ae0666f6c023eedb2ed80d4d5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2025-11-13T19:31:12Z","title_canon_sha256":"104d00f54640acaad1753b27628747550da3c5923cab088adad13b1a0268a78a"},"schema_version":"1.0","source":{"id":"2511.10763","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2511.10763","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"arxiv_version","alias_value":"2511.10763v2","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.10763","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"pith_short_12","alias_value":"FKEV5K2HXIIE","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"pith_short_16","alias_value":"FKEV5K2HXIIE452Z","created_at":"2026-06-08T01:03:51Z"},{"alias_kind":"pith_short_8","alias_value":"FKEV5K2H","created_at":"2026-06-08T01:03:51Z"}],"graph_snapshots":[{"event_id":"sha256:fc059ade45f7d7576075dfa1198df339e52164957668b43891c48731b31b1bca","target":"graph","created_at":"2026-06-08T01:03:51Z","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/2511.10763/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Uncrewed Aerial Vehicles (UAVs) serving as Aerial Base Stations (ABSs) are expected to extend 6G millimeter-Wave (mmWave) coverage and improve link reliability in urban areas. However, UAV-based Air-to-Ground (A2G) channels are highly dependent on height and urban geometry. This paper proposes an ABS height-dependent mmWave channel model and investigates whether urban geometry, beyond the standard built-up parameters, significantly affects LoS probability (PLoS) and Large-Scale Fading (LSF). Using MATLAB ray tracing at 26 GHz, we simulate approximately 10K city realizations for four urban layo","authors_text":"Abdul Saboor, Evgenii Vinogradov","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2025-11-13T19:31:12Z","title":"Millimeter-Wave UAV Channel Model with Height-Dependent Path Loss and Shadowing in Urban Scenarios"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.10763","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:ffcdaab7e643fe7b3d551e99e13e6962074e70e3463ae3c4b6301bb979527594","target":"record","created_at":"2026-06-08T01:03:51Z","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":"a5c46b577ce24204f55f4eee14a1933f3b2bae9ae0666f6c023eedb2ed80d4d5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2025-11-13T19:31:12Z","title_canon_sha256":"104d00f54640acaad1753b27628747550da3c5923cab088adad13b1a0268a78a"},"schema_version":"1.0","source":{"id":"2511.10763","kind":"arxiv","version":2}},"canonical_sha256":"2a895eab47ba104e7759cc3ddfc6e33788afeaaad28bc032dc4c149c2b895dbd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a895eab47ba104e7759cc3ddfc6e33788afeaaad28bc032dc4c149c2b895dbd","first_computed_at":"2026-06-08T01:03:51.334786Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-08T01:03:51.334786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pWG1YT04MX2pznwhjWEWvafpBWgqNJdgX6a+HPHnpFHxnpxjSH92pe2PTZwahMPS2eV+DIoG7G8BGy8JmoIrCg==","signature_status":"signed_v1","signed_at":"2026-06-08T01:03:51.335873Z","signed_message":"canonical_sha256_bytes"},"source_id":"2511.10763","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffcdaab7e643fe7b3d551e99e13e6962074e70e3463ae3c4b6301bb979527594","sha256:fc059ade45f7d7576075dfa1198df339e52164957668b43891c48731b31b1bca"],"state_sha256":"c519bf8b56c3d1fbc394a99cb604d051089db33f2acb284a8d0e1fa19be7e014"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GqS6sgr4qTQqdwyhmepUeRzuupShCJ0HOW8q5jhlfBpYQMgJWjr1HY7Qf9XK5mu87C0SYBPfn5Cc3PCyLR3kDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T08:47:31.107390Z","bundle_sha256":"94f2d98c58f445acc484e2f3bbd9f5a8682aafb95cfa9d10dd403ec869d97fc9"}}