{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KGJ5FAQI6PSPM44BH4TKQR6RCB","short_pith_number":"pith:KGJ5FAQI","canonical_record":{"source":{"id":"1305.4832","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-05-21T14:29:01Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"b376f2ea139f977bed27de220e68b97d1f5131993545f50b858f5fd3ad111979","abstract_canon_sha256":"971256f47a439543054c5191e260d426866114f73a8943132bf0c46aa9082eeb"},"schema_version":"1.0"},"canonical_sha256":"5193d28208f3e4f673813f26a847d1106d2c05a5ff7ee29d54047360c72ba2b3","source":{"kind":"arxiv","id":"1305.4832","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.4832","created_at":"2026-05-18T00:45:52Z"},{"alias_kind":"arxiv_version","alias_value":"1305.4832v1","created_at":"2026-05-18T00:45:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.4832","created_at":"2026-05-18T00:45:52Z"},{"alias_kind":"pith_short_12","alias_value":"KGJ5FAQI6PSP","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"KGJ5FAQI6PSPM44B","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"KGJ5FAQI","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KGJ5FAQI6PSPM44BH4TKQR6RCB","target":"record","payload":{"canonical_record":{"source":{"id":"1305.4832","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-05-21T14:29:01Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"b376f2ea139f977bed27de220e68b97d1f5131993545f50b858f5fd3ad111979","abstract_canon_sha256":"971256f47a439543054c5191e260d426866114f73a8943132bf0c46aa9082eeb"},"schema_version":"1.0"},"canonical_sha256":"5193d28208f3e4f673813f26a847d1106d2c05a5ff7ee29d54047360c72ba2b3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:45:52.542742Z","signature_b64":"ExRAD0xpGowaolXFVjsN/ieelgWLbUGn3nKZjoe9T6nARNtk/qNhaimh7jI9jG0vLqW9uXTltmmaprjOXzM1DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5193d28208f3e4f673813f26a847d1106d2c05a5ff7ee29d54047360c72ba2b3","last_reissued_at":"2026-05-18T00:45:52.542184Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:45:52.542184Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.4832","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":"2026-05-18T00:45:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3E+iWgxtlzkTzwSaTLVNX0zeMe5f9m+VO5Xb4g1E5BgEmxMQJn8gmEhNzR6qVaHPZu18oWi1cVY2xqi8KILqCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T15:34:56.631224Z"},"content_sha256":"94283784a71a90d1b571fa3e18d27a976a02e8db13c165fe9bd470d7fd640322","schema_version":"1.0","event_id":"sha256:94283784a71a90d1b571fa3e18d27a976a02e8db13c165fe9bd470d7fd640322"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KGJ5FAQI6PSPM44BH4TKQR6RCB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Secure Biometrics: Concepts, Authentication Architectures and Challenges","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","math.IT"],"primary_cat":"cs.CR","authors_text":"Prakash Ishwar, Shantanu Rane, Stark. C. Draper, Ye Wang","submitted_at":"2013-05-21T14:29:01Z","abstract_excerpt":"BIOMETRICS are an important and widely used class of methods for identity verification and access control. Biometrics are attractive because they are inherent properties of an individual. They need not be remembered like passwords, and are not easily lost or forged like identifying documents. At the same time, bio- metrics are fundamentally noisy and irreplaceable. There are always slight variations among the measurements of a given biometric, and, unlike passwords or identification numbers, biometrics are derived from physical characteristics that cannot easily be changed. The proliferation o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.4832","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":"2026-05-18T00:45:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FE6QFu89u3pNlE9nGh5Hsh0Lk4eWVXDL8ez103q1aFdLXmIcs9DUH9AvAzkux+eshQWQWTrrl2wT2xHbUQ7cDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T15:34:56.631585Z"},"content_sha256":"21ada53e9b7afd218fe8dd271262a73903fe3329e12e5760e9382e66cd420919","schema_version":"1.0","event_id":"sha256:21ada53e9b7afd218fe8dd271262a73903fe3329e12e5760e9382e66cd420919"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KGJ5FAQI6PSPM44BH4TKQR6RCB/bundle.json","state_url":"https://pith.science/pith/KGJ5FAQI6PSPM44BH4TKQR6RCB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KGJ5FAQI6PSPM44BH4TKQR6RCB/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":"2026-06-03T15:34:56Z","links":{"resolver":"https://pith.science/pith/KGJ5FAQI6PSPM44BH4TKQR6RCB","bundle":"https://pith.science/pith/KGJ5FAQI6PSPM44BH4TKQR6RCB/bundle.json","state":"https://pith.science/pith/KGJ5FAQI6PSPM44BH4TKQR6RCB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KGJ5FAQI6PSPM44BH4TKQR6RCB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KGJ5FAQI6PSPM44BH4TKQR6RCB","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":"971256f47a439543054c5191e260d426866114f73a8943132bf0c46aa9082eeb","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-05-21T14:29:01Z","title_canon_sha256":"b376f2ea139f977bed27de220e68b97d1f5131993545f50b858f5fd3ad111979"},"schema_version":"1.0","source":{"id":"1305.4832","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.4832","created_at":"2026-05-18T00:45:52Z"},{"alias_kind":"arxiv_version","alias_value":"1305.4832v1","created_at":"2026-05-18T00:45:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.4832","created_at":"2026-05-18T00:45:52Z"},{"alias_kind":"pith_short_12","alias_value":"KGJ5FAQI6PSP","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"KGJ5FAQI6PSPM44B","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"KGJ5FAQI","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:21ada53e9b7afd218fe8dd271262a73903fe3329e12e5760e9382e66cd420919","target":"graph","created_at":"2026-05-18T00:45:52Z","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":"BIOMETRICS are an important and widely used class of methods for identity verification and access control. Biometrics are attractive because they are inherent properties of an individual. They need not be remembered like passwords, and are not easily lost or forged like identifying documents. At the same time, bio- metrics are fundamentally noisy and irreplaceable. There are always slight variations among the measurements of a given biometric, and, unlike passwords or identification numbers, biometrics are derived from physical characteristics that cannot easily be changed. The proliferation o","authors_text":"Prakash Ishwar, Shantanu Rane, Stark. C. Draper, Ye Wang","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-05-21T14:29:01Z","title":"Secure Biometrics: Concepts, Authentication Architectures and Challenges"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.4832","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":"sha256:94283784a71a90d1b571fa3e18d27a976a02e8db13c165fe9bd470d7fd640322","target":"record","created_at":"2026-05-18T00:45:52Z","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":"971256f47a439543054c5191e260d426866114f73a8943132bf0c46aa9082eeb","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-05-21T14:29:01Z","title_canon_sha256":"b376f2ea139f977bed27de220e68b97d1f5131993545f50b858f5fd3ad111979"},"schema_version":"1.0","source":{"id":"1305.4832","kind":"arxiv","version":1}},"canonical_sha256":"5193d28208f3e4f673813f26a847d1106d2c05a5ff7ee29d54047360c72ba2b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5193d28208f3e4f673813f26a847d1106d2c05a5ff7ee29d54047360c72ba2b3","first_computed_at":"2026-05-18T00:45:52.542184Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:52.542184Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ExRAD0xpGowaolXFVjsN/ieelgWLbUGn3nKZjoe9T6nARNtk/qNhaimh7jI9jG0vLqW9uXTltmmaprjOXzM1DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:52.542742Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.4832","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94283784a71a90d1b571fa3e18d27a976a02e8db13c165fe9bd470d7fd640322","sha256:21ada53e9b7afd218fe8dd271262a73903fe3329e12e5760e9382e66cd420919"],"state_sha256":"54797787f1889ac4211f6b2da972b5f6280e46290bbc04c4f469c869980200e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CYllccXHV7KUnQIF7NrmgfiQ2rf5veb5QkTuE9UWXkOJsDAsehE1SEOwPM9TW7W9WnAhThXIkVg9rr+o3pDtBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T15:34:56.633496Z","bundle_sha256":"729ab1d1db917ea6bb80d15322d80db9bfebdbf3f6803248e87e907827c4e65a"}}