{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:RJ27QEIJBOC2X3TV4JPTQ4E45F","short_pith_number":"pith:RJ27QEIJ","canonical_record":{"source":{"id":"1804.08122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-22T15:21:42Z","cross_cats_sorted":[],"title_canon_sha256":"46a400263d7c06baaa9dc2343835aac4da338039df90099e7852cfc93dfa582f","abstract_canon_sha256":"bb58c63a0bd847814b9dd7b69bea45dcd7294244794aaf86e27329c9212efb61"},"schema_version":"1.0"},"canonical_sha256":"8a75f811090b85abee75e25f38709ce978205f83e36abfb409b665e340d207be","source":{"kind":"arxiv","id":"1804.08122","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.08122","created_at":"2026-05-18T00:17:49Z"},{"alias_kind":"arxiv_version","alias_value":"1804.08122v1","created_at":"2026-05-18T00:17:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.08122","created_at":"2026-05-18T00:17:49Z"},{"alias_kind":"pith_short_12","alias_value":"RJ27QEIJBOC2","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RJ27QEIJBOC2X3TV","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RJ27QEIJ","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:RJ27QEIJBOC2X3TV4JPTQ4E45F","target":"record","payload":{"canonical_record":{"source":{"id":"1804.08122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-22T15:21:42Z","cross_cats_sorted":[],"title_canon_sha256":"46a400263d7c06baaa9dc2343835aac4da338039df90099e7852cfc93dfa582f","abstract_canon_sha256":"bb58c63a0bd847814b9dd7b69bea45dcd7294244794aaf86e27329c9212efb61"},"schema_version":"1.0"},"canonical_sha256":"8a75f811090b85abee75e25f38709ce978205f83e36abfb409b665e340d207be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:49.445331Z","signature_b64":"q1GfzWo/3rI+j61r1knTUDGK49otsk8+3fUyxQAIqGlgHkn426SbV/KlOH0MVCiT15leI7mk7ESeyXyPrWPpDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a75f811090b85abee75e25f38709ce978205f83e36abfb409b665e340d207be","last_reissued_at":"2026-05-18T00:17:49.444758Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:49.444758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.08122","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":"2026-05-18T00:17:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X5R4U/Ez0/WZZGOpIlYb7tsyx5ZoWD3KX9oklIWYyjB1hEoBA34iW6P7SK9V4DnKSrJ/m46Xz9eED7h2MRmIBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:05:06.118462Z"},"content_sha256":"5f17218abe50789c0e1458b106b29df03bf7a491b7dacd5026228d081dce4d7b","schema_version":"1.0","event_id":"sha256:5f17218abe50789c0e1458b106b29df03bf7a491b7dacd5026228d081dce4d7b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:RJ27QEIJBOC2X3TV4JPTQ4E45F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Matching Fingerphotos to Slap Fingerprint Images","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Anil K. Jain, Debayan Deb, Jake Kendall, Joshua Engelsma, Kai Cao, Neeta Nain, Tarang Chugh","submitted_at":"2018-04-22T15:21:42Z","abstract_excerpt":"We address the problem of comparing fingerphotos, fingerprint images from a commodity smartphone camera, with the corresponding legacy slap contact-based fingerprint images. Development of robust versions of these technologies would enable the use of the billions of standard Android phones as biometric readers through a simple software download, dramatically lowering the cost and complexity of deployment relative to using a separate fingerprint reader. Two fingerphoto apps running on Android phones and an optical slap reader were utilized for fingerprint collection of 309 subjects who primaril"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.08122","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":"2026-05-18T00:17:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wzXR3Iw6ZaXDejbIBhACJ5PGI/xfkKi0KtB3U7zBNZsZhV300gtEQ+BC78yI7awPsJ/0Y72QwQLXBUTDebACBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:05:06.119099Z"},"content_sha256":"93804f667c089068cc2200113dc0367636281fd0f9888764b84d4de8e2c1f0c9","schema_version":"1.0","event_id":"sha256:93804f667c089068cc2200113dc0367636281fd0f9888764b84d4de8e2c1f0c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RJ27QEIJBOC2X3TV4JPTQ4E45F/bundle.json","state_url":"https://pith.science/pith/RJ27QEIJBOC2X3TV4JPTQ4E45F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RJ27QEIJBOC2X3TV4JPTQ4E45F/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":"2026-05-26T08:05:06Z","links":{"resolver":"https://pith.science/pith/RJ27QEIJBOC2X3TV4JPTQ4E45F","bundle":"https://pith.science/pith/RJ27QEIJBOC2X3TV4JPTQ4E45F/bundle.json","state":"https://pith.science/pith/RJ27QEIJBOC2X3TV4JPTQ4E45F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RJ27QEIJBOC2X3TV4JPTQ4E45F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RJ27QEIJBOC2X3TV4JPTQ4E45F","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":"bb58c63a0bd847814b9dd7b69bea45dcd7294244794aaf86e27329c9212efb61","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-22T15:21:42Z","title_canon_sha256":"46a400263d7c06baaa9dc2343835aac4da338039df90099e7852cfc93dfa582f"},"schema_version":"1.0","source":{"id":"1804.08122","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.08122","created_at":"2026-05-18T00:17:49Z"},{"alias_kind":"arxiv_version","alias_value":"1804.08122v1","created_at":"2026-05-18T00:17:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.08122","created_at":"2026-05-18T00:17:49Z"},{"alias_kind":"pith_short_12","alias_value":"RJ27QEIJBOC2","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RJ27QEIJBOC2X3TV","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RJ27QEIJ","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:93804f667c089068cc2200113dc0367636281fd0f9888764b84d4de8e2c1f0c9","target":"graph","created_at":"2026-05-18T00:17:49Z","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":"We address the problem of comparing fingerphotos, fingerprint images from a commodity smartphone camera, with the corresponding legacy slap contact-based fingerprint images. Development of robust versions of these technologies would enable the use of the billions of standard Android phones as biometric readers through a simple software download, dramatically lowering the cost and complexity of deployment relative to using a separate fingerprint reader. Two fingerphoto apps running on Android phones and an optical slap reader were utilized for fingerprint collection of 309 subjects who primaril","authors_text":"Anil K. Jain, Debayan Deb, Jake Kendall, Joshua Engelsma, Kai Cao, Neeta Nain, Tarang Chugh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-22T15:21:42Z","title":"Matching Fingerphotos to Slap Fingerprint Images"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.08122","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":"sha256:5f17218abe50789c0e1458b106b29df03bf7a491b7dacd5026228d081dce4d7b","target":"record","created_at":"2026-05-18T00:17:49Z","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":"bb58c63a0bd847814b9dd7b69bea45dcd7294244794aaf86e27329c9212efb61","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-22T15:21:42Z","title_canon_sha256":"46a400263d7c06baaa9dc2343835aac4da338039df90099e7852cfc93dfa582f"},"schema_version":"1.0","source":{"id":"1804.08122","kind":"arxiv","version":1}},"canonical_sha256":"8a75f811090b85abee75e25f38709ce978205f83e36abfb409b665e340d207be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a75f811090b85abee75e25f38709ce978205f83e36abfb409b665e340d207be","first_computed_at":"2026-05-18T00:17:49.444758Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:49.444758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q1GfzWo/3rI+j61r1knTUDGK49otsk8+3fUyxQAIqGlgHkn426SbV/KlOH0MVCiT15leI7mk7ESeyXyPrWPpDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:49.445331Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.08122","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f17218abe50789c0e1458b106b29df03bf7a491b7dacd5026228d081dce4d7b","sha256:93804f667c089068cc2200113dc0367636281fd0f9888764b84d4de8e2c1f0c9"],"state_sha256":"f903d9e2ec053b6d41207c2ef644fa9957728e6d17f69be1e83615b50ab2820c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h19PffJz+2Yhy2V8v248RzBfe7THjUMOIT0K9oeL+Y8szhttV2KOr1kA0D/t0FAuARxTqH689DtcGltPUcIwAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T08:05:06.122610Z","bundle_sha256":"486c0bdb7f3efa5df3671489d4455eb8d62e6ad01cb19b17f7a25cccdcb84244"}}