{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:2TQFHZGNRFUP4VPPA2X35YIPY7","short_pith_number":"pith:2TQFHZGN","canonical_record":{"source":{"id":"2408.11271","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-08-21T01:47:06Z","cross_cats_sorted":[],"title_canon_sha256":"405e0af1c8a8ee515b18d84642ef89dc2fdf314e66cbb44370fb6a528f412d81","abstract_canon_sha256":"c577b487e52360bc48d5f2c45a08aa0e94008c75cdf51ec2850d99c0eb076cbc"},"schema_version":"1.0"},"canonical_sha256":"d4e053e4cd8968fe55ef06afbee10fc7d3576753f28a89b0793b1793318b47bb","source":{"kind":"arxiv","id":"2408.11271","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.11271","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"arxiv_version","alias_value":"2408.11271v1","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.11271","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"pith_short_12","alias_value":"2TQFHZGNRFUP","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"pith_short_16","alias_value":"2TQFHZGNRFUP4VPP","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"pith_short_8","alias_value":"2TQFHZGN","created_at":"2026-07-05T08:57:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:2TQFHZGNRFUP4VPPA2X35YIPY7","target":"record","payload":{"canonical_record":{"source":{"id":"2408.11271","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-08-21T01:47:06Z","cross_cats_sorted":[],"title_canon_sha256":"405e0af1c8a8ee515b18d84642ef89dc2fdf314e66cbb44370fb6a528f412d81","abstract_canon_sha256":"c577b487e52360bc48d5f2c45a08aa0e94008c75cdf51ec2850d99c0eb076cbc"},"schema_version":"1.0"},"canonical_sha256":"d4e053e4cd8968fe55ef06afbee10fc7d3576753f28a89b0793b1793318b47bb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:57:41.323237Z","signature_b64":"V1ESOZSD4WWNeKtWGa3SoGtnRUxrqAO+J57wJmYBAMKK5JvZN3Yw8Zwv57IUuE5eZlBKwqO0ci+STf9gu7wxBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d4e053e4cd8968fe55ef06afbee10fc7d3576753f28a89b0793b1793318b47bb","last_reissued_at":"2026-07-05T08:57:41.322787Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:57:41.322787Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2408.11271","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":"2026-07-05T08:57:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pJF7/UV1t7WSJY+i+tBdof8m3a2+HDVhxu1VvZNY/KdDOu0SORbA4z8yMHp26/gwPt+70N8sH++QdNxeJlRXBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T23:28:41.989260Z"},"content_sha256":"da002efd48cfb035ec7ff0e5ea54a08114731f193c5523f8f5f77c74ee80e214","schema_version":"1.0","event_id":"sha256:da002efd48cfb035ec7ff0e5ea54a08114731f193c5523f8f5f77c74ee80e214"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:2TQFHZGNRFUP4VPPA2X35YIPY7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Missing Scores in Evolving Multibiometric Systems","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Anil Jain, Arun Ross, Melissa R Dale","submitted_at":"2024-08-21T01:47:06Z","abstract_excerpt":"The use of multiple modalities (e.g., face and fingerprint) or multiple algorithms (e.g., three face comparators) has shown to improve the recognition accuracy of an operational biometric system. Over time a biometric system may evolve to add new modalities, retire old modalities, or be merged with other biometric systems. This can lead to scenarios where there are missing scores corresponding to the input probe set. Previous work on this topic has focused on either the verification or identification tasks, but not both. Further, the proportion of missing data considered has been less than 50%"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.11271","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/2408.11271/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":"2026-07-05T08:57:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HunXTCsBu6ggVzCTpd2kVlGx6+5lw07V8KULmMlbd88t5YVmrDq2emrCgm64T9DzrzZPDWeKoTDHiY6JHGlNBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T23:28:41.989758Z"},"content_sha256":"51efbae39cdd16677550f4d13a56313636ab9bde1792d42655a06497f7a21bb7","schema_version":"1.0","event_id":"sha256:51efbae39cdd16677550f4d13a56313636ab9bde1792d42655a06497f7a21bb7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2TQFHZGNRFUP4VPPA2X35YIPY7/bundle.json","state_url":"https://pith.science/pith/2TQFHZGNRFUP4VPPA2X35YIPY7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2TQFHZGNRFUP4VPPA2X35YIPY7/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":"2026-08-21T23:28:41Z","links":{"resolver":"https://pith.science/pith/2TQFHZGNRFUP4VPPA2X35YIPY7","bundle":"https://pith.science/pith/2TQFHZGNRFUP4VPPA2X35YIPY7/bundle.json","state":"https://pith.science/pith/2TQFHZGNRFUP4VPPA2X35YIPY7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2TQFHZGNRFUP4VPPA2X35YIPY7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2TQFHZGNRFUP4VPPA2X35YIPY7","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":"c577b487e52360bc48d5f2c45a08aa0e94008c75cdf51ec2850d99c0eb076cbc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-08-21T01:47:06Z","title_canon_sha256":"405e0af1c8a8ee515b18d84642ef89dc2fdf314e66cbb44370fb6a528f412d81"},"schema_version":"1.0","source":{"id":"2408.11271","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.11271","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"arxiv_version","alias_value":"2408.11271v1","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.11271","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"pith_short_12","alias_value":"2TQFHZGNRFUP","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"pith_short_16","alias_value":"2TQFHZGNRFUP4VPP","created_at":"2026-07-05T08:57:41Z"},{"alias_kind":"pith_short_8","alias_value":"2TQFHZGN","created_at":"2026-07-05T08:57:41Z"}],"graph_snapshots":[{"event_id":"sha256:51efbae39cdd16677550f4d13a56313636ab9bde1792d42655a06497f7a21bb7","target":"graph","created_at":"2026-07-05T08:57:41Z","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/2408.11271/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The use of multiple modalities (e.g., face and fingerprint) or multiple algorithms (e.g., three face comparators) has shown to improve the recognition accuracy of an operational biometric system. Over time a biometric system may evolve to add new modalities, retire old modalities, or be merged with other biometric systems. This can lead to scenarios where there are missing scores corresponding to the input probe set. Previous work on this topic has focused on either the verification or identification tasks, but not both. Further, the proportion of missing data considered has been less than 50%","authors_text":"Anil Jain, Arun Ross, Melissa R Dale","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-08-21T01:47:06Z","title":"On Missing Scores in Evolving Multibiometric Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.11271","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:da002efd48cfb035ec7ff0e5ea54a08114731f193c5523f8f5f77c74ee80e214","target":"record","created_at":"2026-07-05T08:57:41Z","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":"c577b487e52360bc48d5f2c45a08aa0e94008c75cdf51ec2850d99c0eb076cbc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-08-21T01:47:06Z","title_canon_sha256":"405e0af1c8a8ee515b18d84642ef89dc2fdf314e66cbb44370fb6a528f412d81"},"schema_version":"1.0","source":{"id":"2408.11271","kind":"arxiv","version":1}},"canonical_sha256":"d4e053e4cd8968fe55ef06afbee10fc7d3576753f28a89b0793b1793318b47bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d4e053e4cd8968fe55ef06afbee10fc7d3576753f28a89b0793b1793318b47bb","first_computed_at":"2026-07-05T08:57:41.322787Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:57:41.322787Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V1ESOZSD4WWNeKtWGa3SoGtnRUxrqAO+J57wJmYBAMKK5JvZN3Yw8Zwv57IUuE5eZlBKwqO0ci+STf9gu7wxBg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:57:41.323237Z","signed_message":"canonical_sha256_bytes"},"source_id":"2408.11271","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:da002efd48cfb035ec7ff0e5ea54a08114731f193c5523f8f5f77c74ee80e214","sha256:51efbae39cdd16677550f4d13a56313636ab9bde1792d42655a06497f7a21bb7"],"state_sha256":"b8ea1d47d8786fa7025c3b85e20a562ca62cd5da596cfa0991c7d8bd372ca51f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sXPsEib4dmSKRg/Osqixddzl0iezgyX6Ecix/ZY+O4/Ah6B/MTds9O9kknvCw6gb2PTh/jI6SIkX7w4XsGkSBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T23:28:41.993935Z","bundle_sha256":"ee54f3bb28256eb7dabd112d602269a9c61b9c3b41f51d3a7d1149dffca21b9a"}}