{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:UF4FAL4XWIN2ELVMXTRWUYHARX","short_pith_number":"pith:UF4FAL4X","canonical_record":{"source":{"id":"2307.00167","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-06-30T23:04:14Z","cross_cats_sorted":[],"title_canon_sha256":"579437cb205b44473b1b6dab44d2a3893bd5d965ec68f0ebe2195a67706ced95","abstract_canon_sha256":"00535b5a4c63ac4ace49f6c342262f9c98522614732c96cac2a4f9d7cddf2dcf"},"schema_version":"1.0"},"canonical_sha256":"a178502f97b21ba22eacbce36a60e08de720ffe5875c1116cfed7a555c7a2747","source":{"kind":"arxiv","id":"2307.00167","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.00167","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"arxiv_version","alias_value":"2307.00167v2","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.00167","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"pith_short_12","alias_value":"UF4FAL4XWIN2","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"pith_short_16","alias_value":"UF4FAL4XWIN2ELVM","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"pith_short_8","alias_value":"UF4FAL4X","created_at":"2026-07-05T10:26:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:UF4FAL4XWIN2ELVMXTRWUYHARX","target":"record","payload":{"canonical_record":{"source":{"id":"2307.00167","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-06-30T23:04:14Z","cross_cats_sorted":[],"title_canon_sha256":"579437cb205b44473b1b6dab44d2a3893bd5d965ec68f0ebe2195a67706ced95","abstract_canon_sha256":"00535b5a4c63ac4ace49f6c342262f9c98522614732c96cac2a4f9d7cddf2dcf"},"schema_version":"1.0"},"canonical_sha256":"a178502f97b21ba22eacbce36a60e08de720ffe5875c1116cfed7a555c7a2747","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:26:36.012009Z","signature_b64":"45LLeFrdZWNTLIPoAme7JuqDGKRJ6mdU97Cr+goDq0T/86cN19z1XLpAHAs1V7+QlOsTiQnEvRvoDUPwmFRpAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a178502f97b21ba22eacbce36a60e08de720ffe5875c1116cfed7a555c7a2747","last_reissued_at":"2026-07-05T10:26:36.011127Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:26:36.011127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.00167","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":"2026-07-05T10:26:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IGr3lQiUzB6hM0IZenfOmIMFPqnJWiI/sBlNU9hgXfckNr/MYEl50Jo0Ya6hAQFnC266Zh3qbZtkxzdgVKxTAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T00:29:46.022252Z"},"content_sha256":"59ecfeeda317c54b1be15339ba594dfd73db53e15b62ece33d1fa0986698c245","schema_version":"1.0","event_id":"sha256:59ecfeeda317c54b1be15339ba594dfd73db53e15b62ece33d1fa0986698c245"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:UF4FAL4XWIN2ELVMXTRWUYHARX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Learning to Localize with Attention: from sparse mmWave channel estimates from a single BS to high accuracy 3D location","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Hongsheng Lu, Nuria Gonz\\'alez-Prelcic, Takayuki Shimizu, Yun Chen","submitted_at":"2023-06-30T23:04:14Z","abstract_excerpt":"One strategy to obtain user location information in a wireless network operating at millimeter wave (mmWave) is based on the exploitation of the geometric relationships between the channel parameters and the user position. These relationships can be built from the line-of-sight (LOS) path and first-order reflections, or purely first-order reflections, requiring high resolution channel estimates to ensure centimeter level accuracy. In this paper, we consider a mmWave multiple-input multiple-output (MIMO) system employing a hybrid architecture, and develop a low complexity two-stage multidimensi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.00167","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/2307.00167/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":"2026-07-05T10:26:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AjZGifZCfB/tU+UtYvebPh17CuQ9T5LYHrlv4x9mreDiFfW+L6Am2HtAdqOE5UAV4Xc+i5tbDpTz+rXGaELeDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T00:29:46.022927Z"},"content_sha256":"096c02eaf6d25c36096626cd5ce327087fbaf602e0956459b7974b81a1401f08","schema_version":"1.0","event_id":"sha256:096c02eaf6d25c36096626cd5ce327087fbaf602e0956459b7974b81a1401f08"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UF4FAL4XWIN2ELVMXTRWUYHARX/bundle.json","state_url":"https://pith.science/pith/UF4FAL4XWIN2ELVMXTRWUYHARX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UF4FAL4XWIN2ELVMXTRWUYHARX/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":"2026-08-11T00:29:46Z","links":{"resolver":"https://pith.science/pith/UF4FAL4XWIN2ELVMXTRWUYHARX","bundle":"https://pith.science/pith/UF4FAL4XWIN2ELVMXTRWUYHARX/bundle.json","state":"https://pith.science/pith/UF4FAL4XWIN2ELVMXTRWUYHARX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UF4FAL4XWIN2ELVMXTRWUYHARX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:UF4FAL4XWIN2ELVMXTRWUYHARX","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":"00535b5a4c63ac4ace49f6c342262f9c98522614732c96cac2a4f9d7cddf2dcf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-06-30T23:04:14Z","title_canon_sha256":"579437cb205b44473b1b6dab44d2a3893bd5d965ec68f0ebe2195a67706ced95"},"schema_version":"1.0","source":{"id":"2307.00167","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.00167","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"arxiv_version","alias_value":"2307.00167v2","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.00167","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"pith_short_12","alias_value":"UF4FAL4XWIN2","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"pith_short_16","alias_value":"UF4FAL4XWIN2ELVM","created_at":"2026-07-05T10:26:36Z"},{"alias_kind":"pith_short_8","alias_value":"UF4FAL4X","created_at":"2026-07-05T10:26:36Z"}],"graph_snapshots":[{"event_id":"sha256:096c02eaf6d25c36096626cd5ce327087fbaf602e0956459b7974b81a1401f08","target":"graph","created_at":"2026-07-05T10:26:36Z","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/2307.00167/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"One strategy to obtain user location information in a wireless network operating at millimeter wave (mmWave) is based on the exploitation of the geometric relationships between the channel parameters and the user position. These relationships can be built from the line-of-sight (LOS) path and first-order reflections, or purely first-order reflections, requiring high resolution channel estimates to ensure centimeter level accuracy. In this paper, we consider a mmWave multiple-input multiple-output (MIMO) system employing a hybrid architecture, and develop a low complexity two-stage multidimensi","authors_text":"Hongsheng Lu, Nuria Gonz\\'alez-Prelcic, Takayuki Shimizu, Yun Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-06-30T23:04:14Z","title":"Learning to Localize with Attention: from sparse mmWave channel estimates from a single BS to high accuracy 3D location"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.00167","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":"sha256:59ecfeeda317c54b1be15339ba594dfd73db53e15b62ece33d1fa0986698c245","target":"record","created_at":"2026-07-05T10:26:36Z","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":"00535b5a4c63ac4ace49f6c342262f9c98522614732c96cac2a4f9d7cddf2dcf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-06-30T23:04:14Z","title_canon_sha256":"579437cb205b44473b1b6dab44d2a3893bd5d965ec68f0ebe2195a67706ced95"},"schema_version":"1.0","source":{"id":"2307.00167","kind":"arxiv","version":2}},"canonical_sha256":"a178502f97b21ba22eacbce36a60e08de720ffe5875c1116cfed7a555c7a2747","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a178502f97b21ba22eacbce36a60e08de720ffe5875c1116cfed7a555c7a2747","first_computed_at":"2026-07-05T10:26:36.011127Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:26:36.011127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"45LLeFrdZWNTLIPoAme7JuqDGKRJ6mdU97Cr+goDq0T/86cN19z1XLpAHAs1V7+QlOsTiQnEvRvoDUPwmFRpAw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:26:36.012009Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.00167","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:59ecfeeda317c54b1be15339ba594dfd73db53e15b62ece33d1fa0986698c245","sha256:096c02eaf6d25c36096626cd5ce327087fbaf602e0956459b7974b81a1401f08"],"state_sha256":"b7d39cfb59e8407b4e360cc590b420670fdbbf13f31f0a8a9b4282b7ac679412"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oDHrND3hN+c238YghNyxdCjQyefc+jwjbc0r4WyfMDvTQ1HEGsLU/FoYRHOo2e1IVWRCSLhn4mpYCjLJZ3X1AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T00:29:46.027147Z","bundle_sha256":"5209bf299ef077e8594090f24f6ca727b030b1733db05f011b10ca6b4f68504c"}}