{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TO74JGEUXAMSVKLHQWWJVG27OZ","short_pith_number":"pith:TO74JGEU","canonical_record":{"source":{"id":"1811.03562","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-08T17:34:14Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"fd8dd4d7df29638efaeaa8a41a524b6c1941ad4d1501edf0e7fb269e772b7bb8","abstract_canon_sha256":"dcc3521a4db4ad42674c793a8b32fdcf3cf4636cd026f03c2c62afcf7e36940f"},"schema_version":"1.0"},"canonical_sha256":"9bbfc49894b8192aa96785ac9a9b5f765744a11de05186857b13f31827ec9567","source":{"kind":"arxiv","id":"1811.03562","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.03562","created_at":"2026-05-17T23:45:46Z"},{"alias_kind":"arxiv_version","alias_value":"1811.03562v2","created_at":"2026-05-17T23:45:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03562","created_at":"2026-05-17T23:45:46Z"},{"alias_kind":"pith_short_12","alias_value":"TO74JGEUXAMS","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TO74JGEUXAMSVKLH","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TO74JGEU","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TO74JGEUXAMSVKLHQWWJVG27OZ","target":"record","payload":{"canonical_record":{"source":{"id":"1811.03562","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-08T17:34:14Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"fd8dd4d7df29638efaeaa8a41a524b6c1941ad4d1501edf0e7fb269e772b7bb8","abstract_canon_sha256":"dcc3521a4db4ad42674c793a8b32fdcf3cf4636cd026f03c2c62afcf7e36940f"},"schema_version":"1.0"},"canonical_sha256":"9bbfc49894b8192aa96785ac9a9b5f765744a11de05186857b13f31827ec9567","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:46.609290Z","signature_b64":"OqU2pXiiDdYsyerZzEJeAbknYgYak4o+OprwPhoW9m6fcasBCKITBNDi9GPKhb42/gCjwqoswyUC7HSK19XSCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9bbfc49894b8192aa96785ac9a9b5f765744a11de05186857b13f31827ec9567","last_reissued_at":"2026-05-17T23:45:46.608720Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:46.608720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.03562","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":"2026-05-17T23:45:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DcTZXSiM6IO6nDQNtRseUXhsu8T29wKhAoPfquMqsYlVaqyYh4QQlETh2xpUdIz7QQVnEGRmHqVtIDc2JB8nBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:32:39.447976Z"},"content_sha256":"b43aa9e52ae980f7249da1960f22fb5adba31806df0fdc2edaa0eda2940e0c3e","schema_version":"1.0","event_id":"sha256:b43aa9e52ae980f7249da1960f22fb5adba31806df0fdc2edaa0eda2940e0c3e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TO74JGEUXAMSVKLHQWWJVG27OZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Real time Traffic Flow Parameters Prediction with Basic Safety Messages at Low Penetration of Connected Vehicles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.ML"],"primary_cat":"cs.LG","authors_text":"Jerome McClendon, Mashrur Chowdhury, Mizanur Rahman","submitted_at":"2018-11-08T17:34:14Z","abstract_excerpt":"The expected low market penetration of connected vehicles (CVs) in the near future could be a constraint in estimating traffic flow parameters, such as average travel speed of a roadway segment and average space headway between vehicles from the CV broadcasted data. This estimated traffic flow parameters from low penetration of connected vehicles become noisy compared to 100 percent penetration of CVs, and such noise reduces the real time prediction accuracy of a machine learning model, such as the accuracy of long short term memory (LSTM) model in terms of predicting traffic flow parameters. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03562","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":""},"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":"2026-05-17T23:45:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GGnB1MT5mRK1q8BO7E9OEnlCriDfxLlO0PKEsAIXITnDHVCFMS2i2y8+umFBnkWpxcS5jJ21DYDganJ2phjVAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:32:39.448349Z"},"content_sha256":"689b9909a1f55c2c52ba65f513b75f4f28b843c0219461f77183626cac33a5db","schema_version":"1.0","event_id":"sha256:689b9909a1f55c2c52ba65f513b75f4f28b843c0219461f77183626cac33a5db"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TO74JGEUXAMSVKLHQWWJVG27OZ/bundle.json","state_url":"https://pith.science/pith/TO74JGEUXAMSVKLHQWWJVG27OZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TO74JGEUXAMSVKLHQWWJVG27OZ/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":"2026-05-28T13:32:39Z","links":{"resolver":"https://pith.science/pith/TO74JGEUXAMSVKLHQWWJVG27OZ","bundle":"https://pith.science/pith/TO74JGEUXAMSVKLHQWWJVG27OZ/bundle.json","state":"https://pith.science/pith/TO74JGEUXAMSVKLHQWWJVG27OZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TO74JGEUXAMSVKLHQWWJVG27OZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TO74JGEUXAMSVKLHQWWJVG27OZ","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":"dcc3521a4db4ad42674c793a8b32fdcf3cf4636cd026f03c2c62afcf7e36940f","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-08T17:34:14Z","title_canon_sha256":"fd8dd4d7df29638efaeaa8a41a524b6c1941ad4d1501edf0e7fb269e772b7bb8"},"schema_version":"1.0","source":{"id":"1811.03562","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.03562","created_at":"2026-05-17T23:45:46Z"},{"alias_kind":"arxiv_version","alias_value":"1811.03562v2","created_at":"2026-05-17T23:45:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03562","created_at":"2026-05-17T23:45:46Z"},{"alias_kind":"pith_short_12","alias_value":"TO74JGEUXAMS","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TO74JGEUXAMSVKLH","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TO74JGEU","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:689b9909a1f55c2c52ba65f513b75f4f28b843c0219461f77183626cac33a5db","target":"graph","created_at":"2026-05-17T23:45:46Z","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":"The expected low market penetration of connected vehicles (CVs) in the near future could be a constraint in estimating traffic flow parameters, such as average travel speed of a roadway segment and average space headway between vehicles from the CV broadcasted data. This estimated traffic flow parameters from low penetration of connected vehicles become noisy compared to 100 percent penetration of CVs, and such noise reduces the real time prediction accuracy of a machine learning model, such as the accuracy of long short term memory (LSTM) model in terms of predicting traffic flow parameters. ","authors_text":"Jerome McClendon, Mashrur Chowdhury, Mizanur Rahman","cross_cats":["stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-08T17:34:14Z","title":"Real time Traffic Flow Parameters Prediction with Basic Safety Messages at Low Penetration of Connected Vehicles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03562","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:b43aa9e52ae980f7249da1960f22fb5adba31806df0fdc2edaa0eda2940e0c3e","target":"record","created_at":"2026-05-17T23:45:46Z","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":"dcc3521a4db4ad42674c793a8b32fdcf3cf4636cd026f03c2c62afcf7e36940f","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-08T17:34:14Z","title_canon_sha256":"fd8dd4d7df29638efaeaa8a41a524b6c1941ad4d1501edf0e7fb269e772b7bb8"},"schema_version":"1.0","source":{"id":"1811.03562","kind":"arxiv","version":2}},"canonical_sha256":"9bbfc49894b8192aa96785ac9a9b5f765744a11de05186857b13f31827ec9567","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9bbfc49894b8192aa96785ac9a9b5f765744a11de05186857b13f31827ec9567","first_computed_at":"2026-05-17T23:45:46.608720Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:46.608720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OqU2pXiiDdYsyerZzEJeAbknYgYak4o+OprwPhoW9m6fcasBCKITBNDi9GPKhb42/gCjwqoswyUC7HSK19XSCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:46.609290Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.03562","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b43aa9e52ae980f7249da1960f22fb5adba31806df0fdc2edaa0eda2940e0c3e","sha256:689b9909a1f55c2c52ba65f513b75f4f28b843c0219461f77183626cac33a5db"],"state_sha256":"e281c9b75b6cd62ec8baec6262c9dd20b8630b6f8e8943d7e922e0340ba5c6ab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aYen08fX/BYQsFW91uRV+Ammkpmy0LNtdCiN7x18IBOhZzG38SIK3bVStinGGyenIgP9rHh+Qx05X0ee/DVYAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T13:32:39.450335Z","bundle_sha256":"076a2a953db0430aac93303f2c7f92d7171a2ab1e154c3a03f020e9311c01141"}}