{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:N5VNFUP3H7FHDWT3MTGXE5WFXQ","short_pith_number":"pith:N5VNFUP3","schema_version":"1.0","canonical_sha256":"6f6ad2d1fb3fca71da7b64cd7276c5bc1c46dd3beb9d0f5cd5de2263b4c9fad4","source":{"kind":"arxiv","id":"1912.01408","version":1},"attestation_state":"computed","paper":{"title":"Detecting Finger-Vein Presentation Attacks Using 3D Shape & Diffuse Reflectance Decomposition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"cs.CV","authors_text":"Christoph Busch, Jag Mohan Singh, Kiran B. Raja, Raghavendra Ramachandra, Sushma Venkatesh","submitted_at":"2019-12-03T14:31:49Z","abstract_excerpt":"Despite the high biometric performance, finger-vein recognition systems are vulnerable to presentation attacks (aka., spoofing attacks). In this paper, we present a new and robust approach for detecting presentation attacks on finger-vein biometric systems exploiting the 3D Shape (normal-map) and material properties (diffuse-map) of the finger. Observing the normal-map and diffuse-map exhibiting enhanced textural differences in comparison with the original finger-vein image, especially in the presence of varying illumination intensity, we propose to employ textural feature-descriptors on both "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1912.01408","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-12-03T14:31:49Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"0030cacc1446ed3cabde27a1633a89317b27da1d627be4addcec8e48ac8da2f8","abstract_canon_sha256":"7807d81e3e031d6378ad5ab7ce3193a178e0fd08282678a81972ec721dd95977"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:23:30.803660Z","signature_b64":"JcYq6dqmI0u2xT2KYhMjrv+S96TONvNGmUeShJ0Tr8Kc1ai0FHJ2xphD+JrMoHwi0DVp7IFw2KioNM55BzH9Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f6ad2d1fb3fca71da7b64cd7276c5bc1c46dd3beb9d0f5cd5de2263b4c9fad4","last_reissued_at":"2026-07-05T00:23:30.803213Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:23:30.803213Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Detecting Finger-Vein Presentation Attacks Using 3D Shape & Diffuse Reflectance Decomposition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"cs.CV","authors_text":"Christoph Busch, Jag Mohan Singh, Kiran B. Raja, Raghavendra Ramachandra, Sushma Venkatesh","submitted_at":"2019-12-03T14:31:49Z","abstract_excerpt":"Despite the high biometric performance, finger-vein recognition systems are vulnerable to presentation attacks (aka., spoofing attacks). In this paper, we present a new and robust approach for detecting presentation attacks on finger-vein biometric systems exploiting the 3D Shape (normal-map) and material properties (diffuse-map) of the finger. Observing the normal-map and diffuse-map exhibiting enhanced textural differences in comparison with the original finger-vein image, especially in the presence of varying illumination intensity, we propose to employ textural feature-descriptors on both "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.01408","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/1912.01408/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1912.01408","created_at":"2026-07-05T00:23:30.803279+00:00"},{"alias_kind":"arxiv_version","alias_value":"1912.01408v1","created_at":"2026-07-05T00:23:30.803279+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.01408","created_at":"2026-07-05T00:23:30.803279+00:00"},{"alias_kind":"pith_short_12","alias_value":"N5VNFUP3H7FH","created_at":"2026-07-05T00:23:30.803279+00:00"},{"alias_kind":"pith_short_16","alias_value":"N5VNFUP3H7FHDWT3","created_at":"2026-07-05T00:23:30.803279+00:00"},{"alias_kind":"pith_short_8","alias_value":"N5VNFUP3","created_at":"2026-07-05T00:23:30.803279+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/N5VNFUP3H7FHDWT3MTGXE5WFXQ","json":"https://pith.science/pith/N5VNFUP3H7FHDWT3MTGXE5WFXQ.json","graph_json":"https://pith.science/api/pith-number/N5VNFUP3H7FHDWT3MTGXE5WFXQ/graph.json","events_json":"https://pith.science/api/pith-number/N5VNFUP3H7FHDWT3MTGXE5WFXQ/events.json","paper":"https://pith.science/paper/N5VNFUP3"},"agent_actions":{"view_html":"https://pith.science/pith/N5VNFUP3H7FHDWT3MTGXE5WFXQ","download_json":"https://pith.science/pith/N5VNFUP3H7FHDWT3MTGXE5WFXQ.json","view_paper":"https://pith.science/paper/N5VNFUP3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1912.01408&json=true","fetch_graph":"https://pith.science/api/pith-number/N5VNFUP3H7FHDWT3MTGXE5WFXQ/graph.json","fetch_events":"https://pith.science/api/pith-number/N5VNFUP3H7FHDWT3MTGXE5WFXQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/N5VNFUP3H7FHDWT3MTGXE5WFXQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/N5VNFUP3H7FHDWT3MTGXE5WFXQ/action/storage_attestation","attest_author":"https://pith.science/pith/N5VNFUP3H7FHDWT3MTGXE5WFXQ/action/author_attestation","sign_citation":"https://pith.science/pith/N5VNFUP3H7FHDWT3MTGXE5WFXQ/action/citation_signature","submit_replication":"https://pith.science/pith/N5VNFUP3H7FHDWT3MTGXE5WFXQ/action/replication_record"}},"created_at":"2026-07-05T00:23:30.803279+00:00","updated_at":"2026-07-05T00:23:30.803279+00:00"}