{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:YYMXOIMLJBNMYEUWN4S2WGEK6I","short_pith_number":"pith:YYMXOIML","canonical_record":{"source":{"id":"1912.00831","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-12-02T14:52:43Z","cross_cats_sorted":[],"title_canon_sha256":"841586ccdc4073a649ad25d7f4890c5729d56361716208affc5670e7606592c2","abstract_canon_sha256":"8ab37d956f7c730699c1aaf696c6b487521c123019b2c86eb66de184d3806356"},"schema_version":"1.0"},"canonical_sha256":"c61977218b485acc12966f25ab188af23c770069386b58866c233af9e3428915","source":{"kind":"arxiv","id":"1912.00831","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.00831","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"arxiv_version","alias_value":"1912.00831v1","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.00831","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"pith_short_12","alias_value":"YYMXOIMLJBNM","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"pith_short_16","alias_value":"YYMXOIMLJBNMYEUW","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"pith_short_8","alias_value":"YYMXOIML","created_at":"2026-07-05T00:23:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:YYMXOIMLJBNMYEUWN4S2WGEK6I","target":"record","payload":{"canonical_record":{"source":{"id":"1912.00831","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-12-02T14:52:43Z","cross_cats_sorted":[],"title_canon_sha256":"841586ccdc4073a649ad25d7f4890c5729d56361716208affc5670e7606592c2","abstract_canon_sha256":"8ab37d956f7c730699c1aaf696c6b487521c123019b2c86eb66de184d3806356"},"schema_version":"1.0"},"canonical_sha256":"c61977218b485acc12966f25ab188af23c770069386b58866c233af9e3428915","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:23:17.194143Z","signature_b64":"9vK9UMVUqNPmE0UwEdJRaYgu8gzhYcByGIwejo6bqJVRj7hFP6s5qrIB5xq6dZ1RKiNBXHaByGRkycsxYiOJDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c61977218b485acc12966f25ab188af23c770069386b58866c233af9e3428915","last_reissued_at":"2026-07-05T00:23:17.193725Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:23:17.193725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1912.00831","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":"2026-07-05T00:23:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y7xdlgp0if/9U2VoHKe0TpTLPL9qK2Gi3hzZrXpLtcs9pv7xJwoZr0SRQdlc6CbalEUpX5zKAQCOg1IAgsd3DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T20:25:27.689422Z"},"content_sha256":"6a2e9a64e3ea17351c94c42e4717b9b13341505ac0c3d37f62641807dccd9e05","schema_version":"1.0","event_id":"sha256:6a2e9a64e3ea17351c94c42e4717b9b13341505ac0c3d37f62641807dccd9e05"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:YYMXOIMLJBNMYEUWN4S2WGEK6I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reducing the Complexity of Fingerprinting-Based Positioning using Locality-Sensitive Hashing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Christoph Studer, Larry Tang, Ramina Ghods","submitted_at":"2019-12-02T14:52:43Z","abstract_excerpt":"Localization of wireless transmitters based on channel state information (CSI) fingerprinting finds widespread use in indoor as well as outdoor scenarios. Fingerprinting localization first builds a database containing CSI with measured location information. One then searches for the most similar CSI in this database to approximate the position of wireless transmitters. In this paper, we investigate the efficacy of locality-sensitive hashing (LSH) to reduce the complexity of the nearest neighbor-search (NNS) required by conventional fingerprinting localization systems. More specifically, we pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.00831","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/1912.00831/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":"2026-07-05T00:23:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NewcFpWPUZd4G26kQ34KV4sjFwnqkc0/C39ZkR8X6U6fkFJxoZTqcMTb5y8yrBxHJEqwf+GovwpW4r+jKCD3DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T20:25:27.689951Z"},"content_sha256":"68c4897845e6401040f3c46ac380dbe846980c7c67a7eb225cb74b5dde8e0a31","schema_version":"1.0","event_id":"sha256:68c4897845e6401040f3c46ac380dbe846980c7c67a7eb225cb74b5dde8e0a31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YYMXOIMLJBNMYEUWN4S2WGEK6I/bundle.json","state_url":"https://pith.science/pith/YYMXOIMLJBNMYEUWN4S2WGEK6I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YYMXOIMLJBNMYEUWN4S2WGEK6I/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":"2026-08-12T20:25:27Z","links":{"resolver":"https://pith.science/pith/YYMXOIMLJBNMYEUWN4S2WGEK6I","bundle":"https://pith.science/pith/YYMXOIMLJBNMYEUWN4S2WGEK6I/bundle.json","state":"https://pith.science/pith/YYMXOIMLJBNMYEUWN4S2WGEK6I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YYMXOIMLJBNMYEUWN4S2WGEK6I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YYMXOIMLJBNMYEUWN4S2WGEK6I","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":"8ab37d956f7c730699c1aaf696c6b487521c123019b2c86eb66de184d3806356","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-12-02T14:52:43Z","title_canon_sha256":"841586ccdc4073a649ad25d7f4890c5729d56361716208affc5670e7606592c2"},"schema_version":"1.0","source":{"id":"1912.00831","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.00831","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"arxiv_version","alias_value":"1912.00831v1","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.00831","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"pith_short_12","alias_value":"YYMXOIMLJBNM","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"pith_short_16","alias_value":"YYMXOIMLJBNMYEUW","created_at":"2026-07-05T00:23:17Z"},{"alias_kind":"pith_short_8","alias_value":"YYMXOIML","created_at":"2026-07-05T00:23:17Z"}],"graph_snapshots":[{"event_id":"sha256:68c4897845e6401040f3c46ac380dbe846980c7c67a7eb225cb74b5dde8e0a31","target":"graph","created_at":"2026-07-05T00:23:17Z","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/1912.00831/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Localization of wireless transmitters based on channel state information (CSI) fingerprinting finds widespread use in indoor as well as outdoor scenarios. Fingerprinting localization first builds a database containing CSI with measured location information. One then searches for the most similar CSI in this database to approximate the position of wireless transmitters. In this paper, we investigate the efficacy of locality-sensitive hashing (LSH) to reduce the complexity of the nearest neighbor-search (NNS) required by conventional fingerprinting localization systems. More specifically, we pro","authors_text":"Christoph Studer, Larry Tang, Ramina Ghods","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-12-02T14:52:43Z","title":"Reducing the Complexity of Fingerprinting-Based Positioning using Locality-Sensitive Hashing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.00831","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":"sha256:6a2e9a64e3ea17351c94c42e4717b9b13341505ac0c3d37f62641807dccd9e05","target":"record","created_at":"2026-07-05T00:23:17Z","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":"8ab37d956f7c730699c1aaf696c6b487521c123019b2c86eb66de184d3806356","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-12-02T14:52:43Z","title_canon_sha256":"841586ccdc4073a649ad25d7f4890c5729d56361716208affc5670e7606592c2"},"schema_version":"1.0","source":{"id":"1912.00831","kind":"arxiv","version":1}},"canonical_sha256":"c61977218b485acc12966f25ab188af23c770069386b58866c233af9e3428915","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c61977218b485acc12966f25ab188af23c770069386b58866c233af9e3428915","first_computed_at":"2026-07-05T00:23:17.193725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:23:17.193725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9vK9UMVUqNPmE0UwEdJRaYgu8gzhYcByGIwejo6bqJVRj7hFP6s5qrIB5xq6dZ1RKiNBXHaByGRkycsxYiOJDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:23:17.194143Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.00831","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a2e9a64e3ea17351c94c42e4717b9b13341505ac0c3d37f62641807dccd9e05","sha256:68c4897845e6401040f3c46ac380dbe846980c7c67a7eb225cb74b5dde8e0a31"],"state_sha256":"e550cf390f918eb620ee11afc6a77cfcfc84056a8816d5504f18141e0f823333"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XGPWpMiibyNFMEobThHmnb96yoU3VcbNUr7ABOp3LdeUNPP1fg+gIUzmSvYhFB4Sa2m+R4Hi3A0SiXIVM5sIDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T20:25:27.694185Z","bundle_sha256":"3bf1cbfe75bcd50d57312f526dd861bbfb473f60c5edc2d4511d8de8f217dd1c"}}