{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:ZXTGGF5DUR4KCFJN6OJ7ILAR5X","short_pith_number":"pith:ZXTGGF5D","canonical_record":{"source":{"id":"2507.05536","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-07-07T23:21:19Z","cross_cats_sorted":["cs.ET","cs.LG"],"title_canon_sha256":"5ab03bafe6876e824572771b61b846c6012be78dfedc75e1a8e92c5f03e902d6","abstract_canon_sha256":"eb064d8d5c8a98c4f13e467233003ec08a9e5cdab3ac0449fe3ee6cebad1e61d"},"schema_version":"1.0"},"canonical_sha256":"cde66317a3a478a1152df393f42c11edde1cb5b746b29ac57ff51ce577b777df","source":{"kind":"arxiv","id":"2507.05536","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.05536","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"arxiv_version","alias_value":"2507.05536v1","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.05536","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"pith_short_12","alias_value":"ZXTGGF5DUR4K","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"pith_short_16","alias_value":"ZXTGGF5DUR4KCFJN","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"pith_short_8","alias_value":"ZXTGGF5D","created_at":"2026-07-05T11:33:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:ZXTGGF5DUR4KCFJN6OJ7ILAR5X","target":"record","payload":{"canonical_record":{"source":{"id":"2507.05536","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-07-07T23:21:19Z","cross_cats_sorted":["cs.ET","cs.LG"],"title_canon_sha256":"5ab03bafe6876e824572771b61b846c6012be78dfedc75e1a8e92c5f03e902d6","abstract_canon_sha256":"eb064d8d5c8a98c4f13e467233003ec08a9e5cdab3ac0449fe3ee6cebad1e61d"},"schema_version":"1.0"},"canonical_sha256":"cde66317a3a478a1152df393f42c11edde1cb5b746b29ac57ff51ce577b777df","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:33:31.992763Z","signature_b64":"OpUhKC9cvTcZjtsi2rUEYzdq1nwn9M097/TPTzVp1Mf4MkgDMmnYZtBaL0V2V9olhKo/J5B/7ygrRfa56leSCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cde66317a3a478a1152df393f42c11edde1cb5b746b29ac57ff51ce577b777df","last_reissued_at":"2026-07-05T11:33:31.992325Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:33:31.992325Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.05536","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":"2026-07-05T11:33:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GLQPxfCV86Jjt+gtF1A0rihwL7o2/r1YW6DpgZiMUG7The7DGVtjQdE1QemgPOf+8bYasONexy+FzTz8OVXrBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T17:10:26.495840Z"},"content_sha256":"52f2241f5457e1b356e7432b011944bacf639bc3618c92069db29e5f4e7f6f50","schema_version":"1.0","event_id":"sha256:52f2241f5457e1b356e7432b011944bacf639bc3618c92069db29e5f4e7f6f50"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:ZXTGGF5DUR4KCFJN6OJ7ILAR5X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simulating Refractive Distortions and Weather-Induced Artifacts for Resource-Constrained Autonomous Perception","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["cs.ET","cs.LG"],"primary_cat":"cs.CV","authors_text":"Feimei Chen, Hok Wai Chan, Huaijin Chen, Itumeleng Tlali, Kyungim Baek, Moseli Mots'oehli, Thulani Babeli","submitted_at":"2025-07-07T23:21:19Z","abstract_excerpt":"The scarcity of autonomous vehicle datasets from developing regions, particularly across Africa's diverse urban, rural, and unpaved roads, remains a key obstacle to robust perception in low-resource settings. We present a procedural augmentation pipeline that enhances low-cost monocular dashcam footage with realistic refractive distortions and weather-induced artifacts tailored to challenging African driving scenarios. Our refractive module simulates optical effects from low-quality lenses and air turbulence, including lens distortion, Perlin noise, Thin-Plate Spline (TPS), and divergence-free"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.05536","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/2507.05536/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":"2026-07-05T11:33:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hXUwEdufyWowkIhH5m6Hv/Gq3lF1YvJ4pkMW4mJJR/zAadG5o+CWdulCeVEnwaLUdPtfradV3EAKUn0vNcbcAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T17:10:26.496343Z"},"content_sha256":"14b5d415680a749aa152f5086464e797ff426ddf48966998b50314c7d9d6fcd7","schema_version":"1.0","event_id":"sha256:14b5d415680a749aa152f5086464e797ff426ddf48966998b50314c7d9d6fcd7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZXTGGF5DUR4KCFJN6OJ7ILAR5X/bundle.json","state_url":"https://pith.science/pith/ZXTGGF5DUR4KCFJN6OJ7ILAR5X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZXTGGF5DUR4KCFJN6OJ7ILAR5X/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":"2026-08-07T17:10:26Z","links":{"resolver":"https://pith.science/pith/ZXTGGF5DUR4KCFJN6OJ7ILAR5X","bundle":"https://pith.science/pith/ZXTGGF5DUR4KCFJN6OJ7ILAR5X/bundle.json","state":"https://pith.science/pith/ZXTGGF5DUR4KCFJN6OJ7ILAR5X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZXTGGF5DUR4KCFJN6OJ7ILAR5X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:ZXTGGF5DUR4KCFJN6OJ7ILAR5X","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":"eb064d8d5c8a98c4f13e467233003ec08a9e5cdab3ac0449fe3ee6cebad1e61d","cross_cats_sorted":["cs.ET","cs.LG"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-07-07T23:21:19Z","title_canon_sha256":"5ab03bafe6876e824572771b61b846c6012be78dfedc75e1a8e92c5f03e902d6"},"schema_version":"1.0","source":{"id":"2507.05536","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.05536","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"arxiv_version","alias_value":"2507.05536v1","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.05536","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"pith_short_12","alias_value":"ZXTGGF5DUR4K","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"pith_short_16","alias_value":"ZXTGGF5DUR4KCFJN","created_at":"2026-07-05T11:33:31Z"},{"alias_kind":"pith_short_8","alias_value":"ZXTGGF5D","created_at":"2026-07-05T11:33:31Z"}],"graph_snapshots":[{"event_id":"sha256:14b5d415680a749aa152f5086464e797ff426ddf48966998b50314c7d9d6fcd7","target":"graph","created_at":"2026-07-05T11:33:31Z","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/2507.05536/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The scarcity of autonomous vehicle datasets from developing regions, particularly across Africa's diverse urban, rural, and unpaved roads, remains a key obstacle to robust perception in low-resource settings. We present a procedural augmentation pipeline that enhances low-cost monocular dashcam footage with realistic refractive distortions and weather-induced artifacts tailored to challenging African driving scenarios. Our refractive module simulates optical effects from low-quality lenses and air turbulence, including lens distortion, Perlin noise, Thin-Plate Spline (TPS), and divergence-free","authors_text":"Feimei Chen, Hok Wai Chan, Huaijin Chen, Itumeleng Tlali, Kyungim Baek, Moseli Mots'oehli, Thulani Babeli","cross_cats":["cs.ET","cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-07-07T23:21:19Z","title":"Simulating Refractive Distortions and Weather-Induced Artifacts for Resource-Constrained Autonomous Perception"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.05536","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":"sha256:52f2241f5457e1b356e7432b011944bacf639bc3618c92069db29e5f4e7f6f50","target":"record","created_at":"2026-07-05T11:33:31Z","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":"eb064d8d5c8a98c4f13e467233003ec08a9e5cdab3ac0449fe3ee6cebad1e61d","cross_cats_sorted":["cs.ET","cs.LG"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-07-07T23:21:19Z","title_canon_sha256":"5ab03bafe6876e824572771b61b846c6012be78dfedc75e1a8e92c5f03e902d6"},"schema_version":"1.0","source":{"id":"2507.05536","kind":"arxiv","version":1}},"canonical_sha256":"cde66317a3a478a1152df393f42c11edde1cb5b746b29ac57ff51ce577b777df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cde66317a3a478a1152df393f42c11edde1cb5b746b29ac57ff51ce577b777df","first_computed_at":"2026-07-05T11:33:31.992325Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:33:31.992325Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OpUhKC9cvTcZjtsi2rUEYzdq1nwn9M097/TPTzVp1Mf4MkgDMmnYZtBaL0V2V9olhKo/J5B/7ygrRfa56leSCw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:33:31.992763Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.05536","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:52f2241f5457e1b356e7432b011944bacf639bc3618c92069db29e5f4e7f6f50","sha256:14b5d415680a749aa152f5086464e797ff426ddf48966998b50314c7d9d6fcd7"],"state_sha256":"4e3af00c3d6805143db6a356dc643e14bcfbbab4e7aa5224234c31f55c289f4d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LCWw74aypnWkBCb2CrClOHh02RZJLkOCG5yS5EfJcYJ1BGv5nmkDXusnRLg8F7BY7WWjI4lHY+4ZB8OAVEfUAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T17:10:26.501406Z","bundle_sha256":"d52adfddd658a576979ac91ddefee3858a94230365da78fc3f3070e3323d86a0"}}