{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:LXBF4HJ64DPEFXPQUR7GDNMM2L","short_pith_number":"pith:LXBF4HJ6","canonical_record":{"source":{"id":"2205.15520","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-05-31T03:37:35Z","cross_cats_sorted":[],"title_canon_sha256":"42009c0ab04066faa67ee48813cdfff070525eed27cd2010831f973f99cc43bb","abstract_canon_sha256":"4b8e10bfb6c1bdc3e451bbe756727fc08714107b9944d54cbc70e19ddaea41f0"},"schema_version":"1.0"},"canonical_sha256":"5dc25e1d3ee0de42ddf0a47e61b58cd2f6972b91dba00a30ddedb30a671e62ba","source":{"kind":"arxiv","id":"2205.15520","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.15520","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"arxiv_version","alias_value":"2205.15520v1","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.15520","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"pith_short_12","alias_value":"LXBF4HJ64DPE","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"pith_short_16","alias_value":"LXBF4HJ64DPEFXPQ","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"pith_short_8","alias_value":"LXBF4HJ6","created_at":"2026-07-05T04:27:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:LXBF4HJ64DPEFXPQUR7GDNMM2L","target":"record","payload":{"canonical_record":{"source":{"id":"2205.15520","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-05-31T03:37:35Z","cross_cats_sorted":[],"title_canon_sha256":"42009c0ab04066faa67ee48813cdfff070525eed27cd2010831f973f99cc43bb","abstract_canon_sha256":"4b8e10bfb6c1bdc3e451bbe756727fc08714107b9944d54cbc70e19ddaea41f0"},"schema_version":"1.0"},"canonical_sha256":"5dc25e1d3ee0de42ddf0a47e61b58cd2f6972b91dba00a30ddedb30a671e62ba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:27:33.838461Z","signature_b64":"kfOIHyycuh+TFGKjUKmy6lIbhhUiPdjfnQvJE1vl2NTdHiJVN6Ndz4sjm+vSbWjQhMb9RcWbrfY6ZJ2x8qayCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5dc25e1d3ee0de42ddf0a47e61b58cd2f6972b91dba00a30ddedb30a671e62ba","last_reissued_at":"2026-07-05T04:27:33.837920Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:27:33.837920Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.15520","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:27:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r0j5f51iE6P5ZkGUOcrqio5Av4o99VX9RfWs264bf+fM0psEwOCxUP0KrHZMR5NIs2qeooWIcchod01mX36VCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:28:55.096883Z"},"content_sha256":"a304b10530ac2ca7accf65527b64870643c467f3f9c550f3aa439c619492816b","schema_version":"1.0","event_id":"sha256:a304b10530ac2ca7accf65527b64870643c467f3f9c550f3aa439c619492816b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:LXBF4HJ64DPEFXPQUR7GDNMM2L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimizing the Deployment of Reconfigurable Intelligent Surfaces in MmWave Vehicular Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Nuria Gonzalez-Prelcic, Robert W. Heath Jr, Xiaowen Tian","submitted_at":"2022-05-31T03:37:35Z","abstract_excerpt":"Millimeter wave (MmWave) systems are vulnerable to blockages, which cause signal drop and link outage. One solution is to deploy reconfigurable intelligent surfaces (RISs) to add a strong non-line-of-sight path from the transmitter to receiver. To achieve the best performance, the location of the deployed RIS should be optimized for a given site, considering the distribution of potential users and possible blockers. In this paper, we find the optimal location, height and downtilt of RIS working in a realistic vehicular scenario. Because of the proximity between the RIS and the vehicles, and th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.15520","kind":"arxiv","version":1},"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/2205.15520/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":"2026-07-05T04:27:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DHjW9LGg7lsj76LYkdtws/xy3srfM52WvTeuBbeZ2YfE/UVegfYV8ezvegA/ahRIcv063j9KUDZH0xBv03eCDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:28:55.097480Z"},"content_sha256":"e6d65aac96075c3517503bf401640bbd1add49c2a7234826142fd61284be1290","schema_version":"1.0","event_id":"sha256:e6d65aac96075c3517503bf401640bbd1add49c2a7234826142fd61284be1290"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LXBF4HJ64DPEFXPQUR7GDNMM2L/bundle.json","state_url":"https://pith.science/pith/LXBF4HJ64DPEFXPQUR7GDNMM2L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LXBF4HJ64DPEFXPQUR7GDNMM2L/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":"2026-08-06T15:28:55Z","links":{"resolver":"https://pith.science/pith/LXBF4HJ64DPEFXPQUR7GDNMM2L","bundle":"https://pith.science/pith/LXBF4HJ64DPEFXPQUR7GDNMM2L/bundle.json","state":"https://pith.science/pith/LXBF4HJ64DPEFXPQUR7GDNMM2L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LXBF4HJ64DPEFXPQUR7GDNMM2L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:LXBF4HJ64DPEFXPQUR7GDNMM2L","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":"4b8e10bfb6c1bdc3e451bbe756727fc08714107b9944d54cbc70e19ddaea41f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-05-31T03:37:35Z","title_canon_sha256":"42009c0ab04066faa67ee48813cdfff070525eed27cd2010831f973f99cc43bb"},"schema_version":"1.0","source":{"id":"2205.15520","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.15520","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"arxiv_version","alias_value":"2205.15520v1","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.15520","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"pith_short_12","alias_value":"LXBF4HJ64DPE","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"pith_short_16","alias_value":"LXBF4HJ64DPEFXPQ","created_at":"2026-07-05T04:27:33Z"},{"alias_kind":"pith_short_8","alias_value":"LXBF4HJ6","created_at":"2026-07-05T04:27:33Z"}],"graph_snapshots":[{"event_id":"sha256:e6d65aac96075c3517503bf401640bbd1add49c2a7234826142fd61284be1290","target":"graph","created_at":"2026-07-05T04:27:33Z","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/2205.15520/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Millimeter wave (MmWave) systems are vulnerable to blockages, which cause signal drop and link outage. One solution is to deploy reconfigurable intelligent surfaces (RISs) to add a strong non-line-of-sight path from the transmitter to receiver. To achieve the best performance, the location of the deployed RIS should be optimized for a given site, considering the distribution of potential users and possible blockers. In this paper, we find the optimal location, height and downtilt of RIS working in a realistic vehicular scenario. Because of the proximity between the RIS and the vehicles, and th","authors_text":"Nuria Gonzalez-Prelcic, Robert W. Heath Jr, Xiaowen Tian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-05-31T03:37:35Z","title":"Optimizing the Deployment of Reconfigurable Intelligent Surfaces in MmWave Vehicular Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.15520","kind":"arxiv","version":1},"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:a304b10530ac2ca7accf65527b64870643c467f3f9c550f3aa439c619492816b","target":"record","created_at":"2026-07-05T04:27:33Z","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":"4b8e10bfb6c1bdc3e451bbe756727fc08714107b9944d54cbc70e19ddaea41f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-05-31T03:37:35Z","title_canon_sha256":"42009c0ab04066faa67ee48813cdfff070525eed27cd2010831f973f99cc43bb"},"schema_version":"1.0","source":{"id":"2205.15520","kind":"arxiv","version":1}},"canonical_sha256":"5dc25e1d3ee0de42ddf0a47e61b58cd2f6972b91dba00a30ddedb30a671e62ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5dc25e1d3ee0de42ddf0a47e61b58cd2f6972b91dba00a30ddedb30a671e62ba","first_computed_at":"2026-07-05T04:27:33.837920Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:27:33.837920Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kfOIHyycuh+TFGKjUKmy6lIbhhUiPdjfnQvJE1vl2NTdHiJVN6Ndz4sjm+vSbWjQhMb9RcWbrfY6ZJ2x8qayCw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:27:33.838461Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.15520","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a304b10530ac2ca7accf65527b64870643c467f3f9c550f3aa439c619492816b","sha256:e6d65aac96075c3517503bf401640bbd1add49c2a7234826142fd61284be1290"],"state_sha256":"1e9ef362569c880c8ae8f187b262d9ed98a999278a064b9ccbb6c178fc736488"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hmbWu2aCWhsJ7RQjULnZwBw3VRpZSQcdFkzwHZXcCStv8ZPfIgaiAFusYHUdj50zWfjaeoZAQaAp9Zs3+fvpCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T15:28:55.101540Z","bundle_sha256":"5219349424b21df3e146ee832be2c43bf8626115b2a64a617124723fc60c5b6f"}}