{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:YPXDX7VP3UO24B4HKDQ77GYB67","short_pith_number":"pith:YPXDX7VP","canonical_record":{"source":{"id":"2311.11566","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-11-20T07:04:46Z","cross_cats_sorted":[],"title_canon_sha256":"8ca3ad1fd69be52822e3fa6c7b3020f52bae431dfecffce22578b0ff30934c92","abstract_canon_sha256":"169d20b55b7461e7afccd0958a7f1c287dc798b0036f57602ef6792a0fe8267f"},"schema_version":"1.0"},"canonical_sha256":"c3ee3bfeafdd1dae078750e1ff9b01f7c426d5e48f003aea8ba83dd67fbb0a33","source":{"kind":"arxiv","id":"2311.11566","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.11566","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"arxiv_version","alias_value":"2311.11566v1","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.11566","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"pith_short_12","alias_value":"YPXDX7VP3UO2","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"pith_short_16","alias_value":"YPXDX7VP3UO24B4H","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"pith_short_8","alias_value":"YPXDX7VP","created_at":"2026-07-05T07:14:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:YPXDX7VP3UO24B4HKDQ77GYB67","target":"record","payload":{"canonical_record":{"source":{"id":"2311.11566","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-11-20T07:04:46Z","cross_cats_sorted":[],"title_canon_sha256":"8ca3ad1fd69be52822e3fa6c7b3020f52bae431dfecffce22578b0ff30934c92","abstract_canon_sha256":"169d20b55b7461e7afccd0958a7f1c287dc798b0036f57602ef6792a0fe8267f"},"schema_version":"1.0"},"canonical_sha256":"c3ee3bfeafdd1dae078750e1ff9b01f7c426d5e48f003aea8ba83dd67fbb0a33","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:14:35.603544Z","signature_b64":"kYoIioscaS8TfnCaM8ISon3+BPBQ9mFAFFGRUPpsuWs6lEPVsY7HN3oIMVULJhIhq9XNj4V15f/IHBeCYlJODQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3ee3bfeafdd1dae078750e1ff9b01f7c426d5e48f003aea8ba83dd67fbb0a33","last_reissued_at":"2026-07-05T07:14:35.603052Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:14:35.603052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2311.11566","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":"2026-07-05T07:14:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xqd9pKSWUIV198m+pXN1+YRxacyogQhnji6INabCXcMwhiTWgBqHBF3UlZX3WWx5oFeZ6dYCgt14vYnBzs+ABA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T09:22:21.018658Z"},"content_sha256":"ea9bde07e63c5090abdf76731c2fe4df40f3a9ef22f4fc7382f3054323cb86d6","schema_version":"1.0","event_id":"sha256:ea9bde07e63c5090abdf76731c2fe4df40f3a9ef22f4fc7382f3054323cb86d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:YPXDX7VP3UO24B4HKDQ77GYB67","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Does complimentary information from multispectral imaging improve face presentation attack detection?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Jyoti D. Pawar, Narayan Vetrekar, Raghavendra Ramachandra, R. S. Gad, Sushma Venkatesh","submitted_at":"2023-11-20T07:04:46Z","abstract_excerpt":"Presentation Attack Detection (PAD) has been extensively studied, particularly in the visible spectrum. With the advancement of sensing technology beyond the visible range, multispectral imaging has gained significant attention in this direction. We present PAD based on multispectral images constructed for eight different presentation artifacts resulted from three different artifact species. In this work, we introduce Face Presentation Attack Multispectral (FPAMS) database to demonstrate the significance of employing multispectral imaging. The goal of this work is to study complementary inform"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.11566","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/2311.11566/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":"2026-07-05T07:14:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cb6Dq2uTQmI91ev+Hg4J5emuKWgHqVhEicbpNJ0s4KRTT0s8I1Tkk/gNVR5qm6CMPzh1wyXyUbi9Kfe/54BvCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T09:22:21.019189Z"},"content_sha256":"a3774328c2ef15860e8fc74672e105f907a81876016a40df894bb96f930695f4","schema_version":"1.0","event_id":"sha256:a3774328c2ef15860e8fc74672e105f907a81876016a40df894bb96f930695f4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YPXDX7VP3UO24B4HKDQ77GYB67/bundle.json","state_url":"https://pith.science/pith/YPXDX7VP3UO24B4HKDQ77GYB67/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YPXDX7VP3UO24B4HKDQ77GYB67/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":"2026-08-04T09:22:21Z","links":{"resolver":"https://pith.science/pith/YPXDX7VP3UO24B4HKDQ77GYB67","bundle":"https://pith.science/pith/YPXDX7VP3UO24B4HKDQ77GYB67/bundle.json","state":"https://pith.science/pith/YPXDX7VP3UO24B4HKDQ77GYB67/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YPXDX7VP3UO24B4HKDQ77GYB67/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:YPXDX7VP3UO24B4HKDQ77GYB67","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":"169d20b55b7461e7afccd0958a7f1c287dc798b0036f57602ef6792a0fe8267f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-11-20T07:04:46Z","title_canon_sha256":"8ca3ad1fd69be52822e3fa6c7b3020f52bae431dfecffce22578b0ff30934c92"},"schema_version":"1.0","source":{"id":"2311.11566","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.11566","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"arxiv_version","alias_value":"2311.11566v1","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.11566","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"pith_short_12","alias_value":"YPXDX7VP3UO2","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"pith_short_16","alias_value":"YPXDX7VP3UO24B4H","created_at":"2026-07-05T07:14:35Z"},{"alias_kind":"pith_short_8","alias_value":"YPXDX7VP","created_at":"2026-07-05T07:14:35Z"}],"graph_snapshots":[{"event_id":"sha256:a3774328c2ef15860e8fc74672e105f907a81876016a40df894bb96f930695f4","target":"graph","created_at":"2026-07-05T07:14:35Z","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/2311.11566/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Presentation Attack Detection (PAD) has been extensively studied, particularly in the visible spectrum. With the advancement of sensing technology beyond the visible range, multispectral imaging has gained significant attention in this direction. We present PAD based on multispectral images constructed for eight different presentation artifacts resulted from three different artifact species. In this work, we introduce Face Presentation Attack Multispectral (FPAMS) database to demonstrate the significance of employing multispectral imaging. The goal of this work is to study complementary inform","authors_text":"Jyoti D. Pawar, Narayan Vetrekar, Raghavendra Ramachandra, R. S. Gad, Sushma Venkatesh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-11-20T07:04:46Z","title":"Does complimentary information from multispectral imaging improve face presentation attack detection?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.11566","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:ea9bde07e63c5090abdf76731c2fe4df40f3a9ef22f4fc7382f3054323cb86d6","target":"record","created_at":"2026-07-05T07:14:35Z","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":"169d20b55b7461e7afccd0958a7f1c287dc798b0036f57602ef6792a0fe8267f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-11-20T07:04:46Z","title_canon_sha256":"8ca3ad1fd69be52822e3fa6c7b3020f52bae431dfecffce22578b0ff30934c92"},"schema_version":"1.0","source":{"id":"2311.11566","kind":"arxiv","version":1}},"canonical_sha256":"c3ee3bfeafdd1dae078750e1ff9b01f7c426d5e48f003aea8ba83dd67fbb0a33","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3ee3bfeafdd1dae078750e1ff9b01f7c426d5e48f003aea8ba83dd67fbb0a33","first_computed_at":"2026-07-05T07:14:35.603052Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:14:35.603052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kYoIioscaS8TfnCaM8ISon3+BPBQ9mFAFFGRUPpsuWs6lEPVsY7HN3oIMVULJhIhq9XNj4V15f/IHBeCYlJODQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:14:35.603544Z","signed_message":"canonical_sha256_bytes"},"source_id":"2311.11566","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea9bde07e63c5090abdf76731c2fe4df40f3a9ef22f4fc7382f3054323cb86d6","sha256:a3774328c2ef15860e8fc74672e105f907a81876016a40df894bb96f930695f4"],"state_sha256":"f00f2515a1e865b20f747313278702cbb92aae2cae04cac56bba0d81a21c6dbc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SC/09grg42Iq/UF1nTwZnPQ65KLhUe9hI634a9hCkxMlDXweiObzlLZlQf5rjx9w5ROk3VZo3yJFPh36rgJXAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T09:22:21.024017Z","bundle_sha256":"1e5f28582de029cb3977bd9aaed5782dd63f4ca8850c04fb4107fa2ba4bbf38a"}}