{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:O6OQHFEOZVVP63DWN6I5YBEO2W","short_pith_number":"pith:O6OQHFEO","canonical_record":{"source":{"id":"1908.00102","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-07-31T21:18:34Z","cross_cats_sorted":[],"title_canon_sha256":"27953dc3031fe2d780f9492f76f73060db98624bfef615d53060ca9a50e643d4","abstract_canon_sha256":"366e0ccb16d46c27b107233ccd9c80e1e056c8e91940cd90515e8acff2100088"},"schema_version":"1.0"},"canonical_sha256":"779d03948ecd6aff6c766f91dc048ed5975a7ffec06ebebac2c8842f2d9649b7","source":{"kind":"arxiv","id":"1908.00102","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.00102","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"arxiv_version","alias_value":"1908.00102v1","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.00102","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"pith_short_12","alias_value":"O6OQHFEOZVVP","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"pith_short_16","alias_value":"O6OQHFEOZVVP63DW","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"pith_short_8","alias_value":"O6OQHFEO","created_at":"2026-07-04T23:50:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:O6OQHFEOZVVP63DWN6I5YBEO2W","target":"record","payload":{"canonical_record":{"source":{"id":"1908.00102","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-07-31T21:18:34Z","cross_cats_sorted":[],"title_canon_sha256":"27953dc3031fe2d780f9492f76f73060db98624bfef615d53060ca9a50e643d4","abstract_canon_sha256":"366e0ccb16d46c27b107233ccd9c80e1e056c8e91940cd90515e8acff2100088"},"schema_version":"1.0"},"canonical_sha256":"779d03948ecd6aff6c766f91dc048ed5975a7ffec06ebebac2c8842f2d9649b7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:50:57.017686Z","signature_b64":"Dj8lYRjPerk1j/9ndkAuoAuOmIgcp0uql0X7bFhc4oVCs13P/Md7Wd5lsVbFj+epKexMZhdZ8+PgeG6liECKCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"779d03948ecd6aff6c766f91dc048ed5975a7ffec06ebebac2c8842f2d9649b7","last_reissued_at":"2026-07-04T23:50:57.017224Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:50:57.017224Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.00102","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":"2026-07-04T23:50:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TW/9zTlCS/iWFlKgZLIhCLwxR58f17IaDf1ERYs5JMWb7AQBWi/300aaSutLFBFg4653+BFMUfyhCPe4QenXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T19:34:49.679783Z"},"content_sha256":"59b5105772fb2a568e5636fb418fcbdb5e1aa4ba8d76c52eb3cea8f26af037e3","schema_version":"1.0","event_id":"sha256:59b5105772fb2a568e5636fb418fcbdb5e1aa4ba8d76c52eb3cea8f26af037e3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:O6OQHFEOZVVP63DWN6I5YBEO2W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"OCT Fingerprints: Resilience to Presentation Attacks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Anil K. Jain, Tarang Chugh","submitted_at":"2019-07-31T21:18:34Z","abstract_excerpt":"Optical coherent tomography (OCT) fingerprint technology provides rich depth information, including internal fingerprint (papillary junction) and sweat (eccrine) glands, in addition to imaging any fake layers (presentation attacks) placed over finger skin. Unlike 2D surface fingerprint scans, additional depth information provided by the cross-sectional OCT depth profile scans are purported to thwart fingerprint presentation attacks. We develop and evaluate a presentation attack detector (PAD) based on deep convolutional neural network (CNN). Input data to CNN are local patches extracted from t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.00102","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/1908.00102/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":"2026-07-04T23:50:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KF7ufdP0PXRvSPGWgqsMMBWM4Lqe7v78wrMPU9aLmLIwXSU4cXhC8DiWQZ8PVU34TjM9wOvOyqg25Yf7u67NDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T19:34:49.680096Z"},"content_sha256":"4c93c89feba6d68f92a128a242a291539b1b6abfdf0537ef9fef3cd8d1103e12","schema_version":"1.0","event_id":"sha256:4c93c89feba6d68f92a128a242a291539b1b6abfdf0537ef9fef3cd8d1103e12"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O6OQHFEOZVVP63DWN6I5YBEO2W/bundle.json","state_url":"https://pith.science/pith/O6OQHFEOZVVP63DWN6I5YBEO2W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O6OQHFEOZVVP63DWN6I5YBEO2W/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":"2026-08-06T19:34:49Z","links":{"resolver":"https://pith.science/pith/O6OQHFEOZVVP63DWN6I5YBEO2W","bundle":"https://pith.science/pith/O6OQHFEOZVVP63DWN6I5YBEO2W/bundle.json","state":"https://pith.science/pith/O6OQHFEOZVVP63DWN6I5YBEO2W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O6OQHFEOZVVP63DWN6I5YBEO2W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:O6OQHFEOZVVP63DWN6I5YBEO2W","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":"366e0ccb16d46c27b107233ccd9c80e1e056c8e91940cd90515e8acff2100088","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-07-31T21:18:34Z","title_canon_sha256":"27953dc3031fe2d780f9492f76f73060db98624bfef615d53060ca9a50e643d4"},"schema_version":"1.0","source":{"id":"1908.00102","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.00102","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"arxiv_version","alias_value":"1908.00102v1","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.00102","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"pith_short_12","alias_value":"O6OQHFEOZVVP","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"pith_short_16","alias_value":"O6OQHFEOZVVP63DW","created_at":"2026-07-04T23:50:57Z"},{"alias_kind":"pith_short_8","alias_value":"O6OQHFEO","created_at":"2026-07-04T23:50:57Z"}],"graph_snapshots":[{"event_id":"sha256:4c93c89feba6d68f92a128a242a291539b1b6abfdf0537ef9fef3cd8d1103e12","target":"graph","created_at":"2026-07-04T23:50:57Z","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/1908.00102/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Optical coherent tomography (OCT) fingerprint technology provides rich depth information, including internal fingerprint (papillary junction) and sweat (eccrine) glands, in addition to imaging any fake layers (presentation attacks) placed over finger skin. Unlike 2D surface fingerprint scans, additional depth information provided by the cross-sectional OCT depth profile scans are purported to thwart fingerprint presentation attacks. We develop and evaluate a presentation attack detector (PAD) based on deep convolutional neural network (CNN). Input data to CNN are local patches extracted from t","authors_text":"Anil K. Jain, Tarang Chugh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-07-31T21:18:34Z","title":"OCT Fingerprints: Resilience to Presentation Attacks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.00102","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":"sha256:59b5105772fb2a568e5636fb418fcbdb5e1aa4ba8d76c52eb3cea8f26af037e3","target":"record","created_at":"2026-07-04T23:50:57Z","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":"366e0ccb16d46c27b107233ccd9c80e1e056c8e91940cd90515e8acff2100088","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-07-31T21:18:34Z","title_canon_sha256":"27953dc3031fe2d780f9492f76f73060db98624bfef615d53060ca9a50e643d4"},"schema_version":"1.0","source":{"id":"1908.00102","kind":"arxiv","version":1}},"canonical_sha256":"779d03948ecd6aff6c766f91dc048ed5975a7ffec06ebebac2c8842f2d9649b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"779d03948ecd6aff6c766f91dc048ed5975a7ffec06ebebac2c8842f2d9649b7","first_computed_at":"2026-07-04T23:50:57.017224Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:50:57.017224Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Dj8lYRjPerk1j/9ndkAuoAuOmIgcp0uql0X7bFhc4oVCs13P/Md7Wd5lsVbFj+epKexMZhdZ8+PgeG6liECKCg==","signature_status":"signed_v1","signed_at":"2026-07-04T23:50:57.017686Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.00102","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:59b5105772fb2a568e5636fb418fcbdb5e1aa4ba8d76c52eb3cea8f26af037e3","sha256:4c93c89feba6d68f92a128a242a291539b1b6abfdf0537ef9fef3cd8d1103e12"],"state_sha256":"331c2bcaded3309f16b53bf32ee75b8ab587bdaa30af5144b489076120e78c40"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CrGYmMFd4rrYzfMYJwamgT46sjPQIR+LFZvZlH6uhNKKyLxWScPKTRyJd6iEXKaJAsMESqGqcAjix0JBpNpZDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T19:34:49.683112Z","bundle_sha256":"c3fb5ef7473c0f99f0040d5229519f7d65e81cde1cd7a47471985d4f91ffd383"}}