{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:RX6M3MVYRT4TIJFJZWWDRFUPHG","short_pith_number":"pith:RX6M3MVY","canonical_record":{"source":{"id":"2003.08771","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-02-29T13:57:46Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"c1de96ef09ef6abcb03a0f481e0c103dbdc4770cb702eceb17fa6add6bf19d71","abstract_canon_sha256":"ad5b70ac0cd9643b9cd90fc379f8082ebad08f4dfd70960b7c307adb44916fb2"},"schema_version":"1.0"},"canonical_sha256":"8dfccdb2b88cf93424a9cdac38968f39ad5dae068abe61f878ca6a8d04832825","source":{"kind":"arxiv","id":"2003.08771","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.08771","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"2003.08771v1","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.08771","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"RX6M3MVYRT4T","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"pith_short_16","alias_value":"RX6M3MVYRT4TIJFJ","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"pith_short_8","alias_value":"RX6M3MVY","created_at":"2026-07-05T00:49:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:RX6M3MVYRT4TIJFJZWWDRFUPHG","target":"record","payload":{"canonical_record":{"source":{"id":"2003.08771","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-02-29T13:57:46Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"c1de96ef09ef6abcb03a0f481e0c103dbdc4770cb702eceb17fa6add6bf19d71","abstract_canon_sha256":"ad5b70ac0cd9643b9cd90fc379f8082ebad08f4dfd70960b7c307adb44916fb2"},"schema_version":"1.0"},"canonical_sha256":"8dfccdb2b88cf93424a9cdac38968f39ad5dae068abe61f878ca6a8d04832825","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:49:14.113288Z","signature_b64":"PqVxpdwNEYdKBvgWTLKWlgqimz3KSMnIYGhh47sO1jYNDZICKXpKHUmU7kCpZcrC34CYYSOyeIQn3eo5CzVFAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8dfccdb2b88cf93424a9cdac38968f39ad5dae068abe61f878ca6a8d04832825","last_reissued_at":"2026-07-05T00:49:14.112853Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:49:14.112853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2003.08771","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":"2026-07-05T00:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ODx9g6GFwo4CYNPYghjxleqyG0WI+sS5AEK81GkpYoQASpYuQCCxPYqjX+ud4h3a1M5t5+nrhsIsBZ29Sq0qDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:14:10.837225Z"},"content_sha256":"2da24d77a35040f73ef353758432c16d97a76b151420b2d3bc6ca17d61854893","schema_version":"1.0","event_id":"sha256:2da24d77a35040f73ef353758432c16d97a76b151420b2d3bc6ca17d61854893"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:RX6M3MVYRT4TIJFJZWWDRFUPHG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"\"Who is Driving around Me?\" Unique Vehicle Instance Classification using Deep Neural Features","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","stat.ML"],"primary_cat":"cs.CV","authors_text":"Lambert Schomaker, Tim Oosterhuis","submitted_at":"2020-02-29T13:57:46Z","abstract_excerpt":"Being aware of other traffic is a prerequisite for self-driving cars to operate in the real world. In this paper, we show how the intrinsic feature maps of an object detection CNN can be used to uniquely identify vehicles from a dash-cam feed. Feature maps of a pretrained `YOLO' network are used to create 700 deep integrated feature signatures (DIFS) from 20 different images of 35 vehicles from a high resolution dataset and 340 signatures from 20 different images of 17 vehicles of a lower resolution tracking benchmark dataset. The YOLO network was trained to classify general object categories,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.08771","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/2003.08771/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":"2026-07-05T00:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qTXLDXlbHnv2qrTrpiIT/jdUicEmD6I/B6YalslFUD9pne58VPGc15+vjGvz5h1UZ1oFZIlQGED4OBee806wAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:14:10.837673Z"},"content_sha256":"be4825ba32fd52d2aa27f2834fece1f927849e5bc9955cc72334f0eca3fe8db1","schema_version":"1.0","event_id":"sha256:be4825ba32fd52d2aa27f2834fece1f927849e5bc9955cc72334f0eca3fe8db1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RX6M3MVYRT4TIJFJZWWDRFUPHG/bundle.json","state_url":"https://pith.science/pith/RX6M3MVYRT4TIJFJZWWDRFUPHG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RX6M3MVYRT4TIJFJZWWDRFUPHG/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":"2026-07-07T05:14:10Z","links":{"resolver":"https://pith.science/pith/RX6M3MVYRT4TIJFJZWWDRFUPHG","bundle":"https://pith.science/pith/RX6M3MVYRT4TIJFJZWWDRFUPHG/bundle.json","state":"https://pith.science/pith/RX6M3MVYRT4TIJFJZWWDRFUPHG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RX6M3MVYRT4TIJFJZWWDRFUPHG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:RX6M3MVYRT4TIJFJZWWDRFUPHG","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":"ad5b70ac0cd9643b9cd90fc379f8082ebad08f4dfd70960b7c307adb44916fb2","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-02-29T13:57:46Z","title_canon_sha256":"c1de96ef09ef6abcb03a0f481e0c103dbdc4770cb702eceb17fa6add6bf19d71"},"schema_version":"1.0","source":{"id":"2003.08771","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.08771","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"2003.08771v1","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.08771","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"RX6M3MVYRT4T","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"pith_short_16","alias_value":"RX6M3MVYRT4TIJFJ","created_at":"2026-07-05T00:49:14Z"},{"alias_kind":"pith_short_8","alias_value":"RX6M3MVY","created_at":"2026-07-05T00:49:14Z"}],"graph_snapshots":[{"event_id":"sha256:be4825ba32fd52d2aa27f2834fece1f927849e5bc9955cc72334f0eca3fe8db1","target":"graph","created_at":"2026-07-05T00:49:14Z","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/2003.08771/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Being aware of other traffic is a prerequisite for self-driving cars to operate in the real world. In this paper, we show how the intrinsic feature maps of an object detection CNN can be used to uniquely identify vehicles from a dash-cam feed. Feature maps of a pretrained `YOLO' network are used to create 700 deep integrated feature signatures (DIFS) from 20 different images of 35 vehicles from a high resolution dataset and 340 signatures from 20 different images of 17 vehicles of a lower resolution tracking benchmark dataset. The YOLO network was trained to classify general object categories,","authors_text":"Lambert Schomaker, Tim Oosterhuis","cross_cats":["cs.LG","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-02-29T13:57:46Z","title":"\"Who is Driving around Me?\" Unique Vehicle Instance Classification using Deep Neural Features"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.08771","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":"sha256:2da24d77a35040f73ef353758432c16d97a76b151420b2d3bc6ca17d61854893","target":"record","created_at":"2026-07-05T00:49:14Z","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":"ad5b70ac0cd9643b9cd90fc379f8082ebad08f4dfd70960b7c307adb44916fb2","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-02-29T13:57:46Z","title_canon_sha256":"c1de96ef09ef6abcb03a0f481e0c103dbdc4770cb702eceb17fa6add6bf19d71"},"schema_version":"1.0","source":{"id":"2003.08771","kind":"arxiv","version":1}},"canonical_sha256":"8dfccdb2b88cf93424a9cdac38968f39ad5dae068abe61f878ca6a8d04832825","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8dfccdb2b88cf93424a9cdac38968f39ad5dae068abe61f878ca6a8d04832825","first_computed_at":"2026-07-05T00:49:14.112853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:49:14.112853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PqVxpdwNEYdKBvgWTLKWlgqimz3KSMnIYGhh47sO1jYNDZICKXpKHUmU7kCpZcrC34CYYSOyeIQn3eo5CzVFAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:49:14.113288Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.08771","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2da24d77a35040f73ef353758432c16d97a76b151420b2d3bc6ca17d61854893","sha256:be4825ba32fd52d2aa27f2834fece1f927849e5bc9955cc72334f0eca3fe8db1"],"state_sha256":"904409450467ff2ebbff584bfd7e9e365f4047147ad49839886ed690e6e7506a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fXFb4Vs9CIruEKU+lt6P3ZsBpGvhSLOdffapGOP8A+O6KcgEQZEMLftKpE5kiu0kCucdRqW+pzxeMC1uauBRBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:14:10.840230Z","bundle_sha256":"ec4e2c38d64107836d09347b5cc45651c853abe729266f2b18fef3f7f41f7b67"}}