{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:LHCFCV66CLW3R6IJBNN2ITBUKI","short_pith_number":"pith:LHCFCV66","canonical_record":{"source":{"id":"1812.07444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-12-18T15:49:45Z","cross_cats_sorted":[],"title_canon_sha256":"5be5c6092dbc9d52dbda002e0af523fbe53777dd1297121ee5c0afa5866265bd","abstract_canon_sha256":"4a9adbfa97a5348e5c9d7627064e36dde563fcaaf2926a5180e7eab6d88fe0ee"},"schema_version":"1.0"},"canonical_sha256":"59c45157de12edb8f9090b5ba44c34521532ff64f7575f1abb3d4ffc547cda41","source":{"kind":"arxiv","id":"1812.07444","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.07444","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"arxiv_version","alias_value":"1812.07444v1","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07444","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"pith_short_12","alias_value":"LHCFCV66CLW3","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LHCFCV66CLW3R6IJ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LHCFCV66","created_at":"2026-05-18T12:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:LHCFCV66CLW3R6IJBNN2ITBUKI","target":"record","payload":{"canonical_record":{"source":{"id":"1812.07444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-12-18T15:49:45Z","cross_cats_sorted":[],"title_canon_sha256":"5be5c6092dbc9d52dbda002e0af523fbe53777dd1297121ee5c0afa5866265bd","abstract_canon_sha256":"4a9adbfa97a5348e5c9d7627064e36dde563fcaaf2926a5180e7eab6d88fe0ee"},"schema_version":"1.0"},"canonical_sha256":"59c45157de12edb8f9090b5ba44c34521532ff64f7575f1abb3d4ffc547cda41","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:00.484527Z","signature_b64":"SdGeZOYpouxxF3DurQn16E5nIe16NyJIbsCnQEm2124oeKwdMTt8UpukfNxz8EVyn4SgYpH92EkqxWvAtcYPBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59c45157de12edb8f9090b5ba44c34521532ff64f7575f1abb3d4ffc547cda41","last_reissued_at":"2026-05-17T23:58:00.483782Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:00.483782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.07444","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":"2026-05-17T23:58:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ytepNPBXXZpzNe0r1/txkyOCcQR+MJvnR3vfT4nYTjWeDH/6BZGLHrozqcit4pFVzL93bo6490WBUqITCzODDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T14:48:40.024141Z"},"content_sha256":"0d61d21f586b3156ea062ea688fd8bd8b473119e3dba354f86c27f2f12d33af9","schema_version":"1.0","event_id":"sha256:0d61d21f586b3156ea062ea688fd8bd8b473119e3dba354f86c27f2f12d33af9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:LHCFCV66CLW3R6IJBNN2ITBUKI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FDSNet: Finger dorsal image spoof detection network using light field camera","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Aditya Nigam, Avantika Singh, Gaurav Jaswal","submitted_at":"2018-12-18T15:49:45Z","abstract_excerpt":"At present spoofing attacks via which biometric system is potentially vulnerable against a fake biometric characteristic, introduces a great challenge to recognition performance. Despite the availability of a broad range of presentation attack detection (PAD) or liveness detection algorithms, fingerprint sensors are vulnerable to spoofing via fake fingers. In such situations, finger dorsal images can be thought of as an alternative which can be captured without much user cooperation and are more appropriate for outdoor security applications. In this paper, we present a first feasibility study "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07444","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":""},"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":"2026-05-17T23:58:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UYG8FxLB1LDpbzwMAU2frnUn9NuHXn53FkV2rt3/ZiyqWi8b8a2VJoRaD85JMrKhQKqIWwEozQ5Dg1ByE1pwCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T14:48:40.024819Z"},"content_sha256":"5cb918bdfc0921f19597512206836387cbf960526703ffb869845af03b5cb0cf","schema_version":"1.0","event_id":"sha256:5cb918bdfc0921f19597512206836387cbf960526703ffb869845af03b5cb0cf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LHCFCV66CLW3R6IJBNN2ITBUKI/bundle.json","state_url":"https://pith.science/pith/LHCFCV66CLW3R6IJBNN2ITBUKI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LHCFCV66CLW3R6IJBNN2ITBUKI/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":"2026-06-06T14:48:40Z","links":{"resolver":"https://pith.science/pith/LHCFCV66CLW3R6IJBNN2ITBUKI","bundle":"https://pith.science/pith/LHCFCV66CLW3R6IJBNN2ITBUKI/bundle.json","state":"https://pith.science/pith/LHCFCV66CLW3R6IJBNN2ITBUKI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LHCFCV66CLW3R6IJBNN2ITBUKI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LHCFCV66CLW3R6IJBNN2ITBUKI","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":"4a9adbfa97a5348e5c9d7627064e36dde563fcaaf2926a5180e7eab6d88fe0ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-12-18T15:49:45Z","title_canon_sha256":"5be5c6092dbc9d52dbda002e0af523fbe53777dd1297121ee5c0afa5866265bd"},"schema_version":"1.0","source":{"id":"1812.07444","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.07444","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"arxiv_version","alias_value":"1812.07444v1","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07444","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"pith_short_12","alias_value":"LHCFCV66CLW3","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LHCFCV66CLW3R6IJ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LHCFCV66","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:5cb918bdfc0921f19597512206836387cbf960526703ffb869845af03b5cb0cf","target":"graph","created_at":"2026-05-17T23:58:00Z","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":"At present spoofing attacks via which biometric system is potentially vulnerable against a fake biometric characteristic, introduces a great challenge to recognition performance. Despite the availability of a broad range of presentation attack detection (PAD) or liveness detection algorithms, fingerprint sensors are vulnerable to spoofing via fake fingers. In such situations, finger dorsal images can be thought of as an alternative which can be captured without much user cooperation and are more appropriate for outdoor security applications. In this paper, we present a first feasibility study ","authors_text":"Aditya Nigam, Avantika Singh, Gaurav Jaswal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-12-18T15:49:45Z","title":"FDSNet: Finger dorsal image spoof detection network using light field camera"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07444","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":"sha256:0d61d21f586b3156ea062ea688fd8bd8b473119e3dba354f86c27f2f12d33af9","target":"record","created_at":"2026-05-17T23:58:00Z","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":"4a9adbfa97a5348e5c9d7627064e36dde563fcaaf2926a5180e7eab6d88fe0ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-12-18T15:49:45Z","title_canon_sha256":"5be5c6092dbc9d52dbda002e0af523fbe53777dd1297121ee5c0afa5866265bd"},"schema_version":"1.0","source":{"id":"1812.07444","kind":"arxiv","version":1}},"canonical_sha256":"59c45157de12edb8f9090b5ba44c34521532ff64f7575f1abb3d4ffc547cda41","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59c45157de12edb8f9090b5ba44c34521532ff64f7575f1abb3d4ffc547cda41","first_computed_at":"2026-05-17T23:58:00.483782Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:00.483782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SdGeZOYpouxxF3DurQn16E5nIe16NyJIbsCnQEm2124oeKwdMTt8UpukfNxz8EVyn4SgYpH92EkqxWvAtcYPBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:00.484527Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.07444","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d61d21f586b3156ea062ea688fd8bd8b473119e3dba354f86c27f2f12d33af9","sha256:5cb918bdfc0921f19597512206836387cbf960526703ffb869845af03b5cb0cf"],"state_sha256":"678f169c829cd16bfe34494ceffe3b7f27e604aece1c709bcfb85826c3765525"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bJYJBpYDy8nf2jbKyPu7FtVUYW4psuzDmQGEa4OUAUYdxMoU+MC6YXhNH9Tsgq4oOdC/ji4HUcl2oPUcRPY8Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T14:48:40.029115Z","bundle_sha256":"cf6e545c0ba8038cddcd19c634e96dcc4413eb1ec062c0b03c08e87fd0a72522"}}