{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:5ILUJTD5IJ4SXSOQGO6GRNMBIK","short_pith_number":"pith:5ILUJTD5","canonical_record":{"source":{"id":"2505.24402","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-30T09:33:01Z","cross_cats_sorted":[],"title_canon_sha256":"b5756aa37c5fbcb0d66502941681d289187e06ed1fbe3746e9cc9e56fc55c4dc","abstract_canon_sha256":"ba4e2b5d534f0fa721db4ad890571a81774357e2543052d9423db65dac027fe8"},"schema_version":"1.0"},"canonical_sha256":"ea1744cc7d42792bc9d033bc68b58142be0efc09535c9617b73ab41075df1ae2","source":{"kind":"arxiv","id":"2505.24402","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.24402","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"arxiv_version","alias_value":"2505.24402v2","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.24402","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"pith_short_12","alias_value":"5ILUJTD5IJ4S","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"pith_short_16","alias_value":"5ILUJTD5IJ4SXSOQ","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"pith_short_8","alias_value":"5ILUJTD5","created_at":"2026-07-05T11:21:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:5ILUJTD5IJ4SXSOQGO6GRNMBIK","target":"record","payload":{"canonical_record":{"source":{"id":"2505.24402","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-30T09:33:01Z","cross_cats_sorted":[],"title_canon_sha256":"b5756aa37c5fbcb0d66502941681d289187e06ed1fbe3746e9cc9e56fc55c4dc","abstract_canon_sha256":"ba4e2b5d534f0fa721db4ad890571a81774357e2543052d9423db65dac027fe8"},"schema_version":"1.0"},"canonical_sha256":"ea1744cc7d42792bc9d033bc68b58142be0efc09535c9617b73ab41075df1ae2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:21:47.559431Z","signature_b64":"LDDNPVoVwfbPF2F8uDSozkP2MzY1pC16awwOzkGiaU5Roy0zI04unEOOJabvHl3HH23vXnvlF2ulA5NdsLXMCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea1744cc7d42792bc9d033bc68b58142be0efc09535c9617b73ab41075df1ae2","last_reissued_at":"2026-07-05T11:21:47.558923Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:21:47.558923Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.24402","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:21:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XGgAzCXg3wTOyggFGsNtUi+EOZ+s2wal9pbaC1xvno92HLyFfZ9/Ltldwjkd84Tfc8b0taQXmem8XwgJgWX0BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T15:54:25.947526Z"},"content_sha256":"c5bddde97de433c8826701f5146fc8d6c263d13237d381c1c48f54668eb1cb44","schema_version":"1.0","event_id":"sha256:c5bddde97de433c8826701f5146fc8d6c263d13237d381c1c48f54668eb1cb44"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:5ILUJTD5IJ4SXSOQGO6GRNMBIK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Leveraging Intermediate Features of Vision Transformer for Face Anti-Spoofing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Koichi Ito, Masakatsu Nishigaki, Mika Feng, Takafumi Aoki, Tetsushi Ohki","submitted_at":"2025-05-30T09:33:01Z","abstract_excerpt":"Face recognition systems are designed to be robust against changes in head pose, illumination, and blurring during image capture. If a malicious person presents a face photo of the registered user, they may bypass the authentication process illegally. Such spoofing attacks need to be detected before face recognition. In this paper, we propose a spoofing attack detection method based on Vision Transformer (ViT) to detect minute differences between live and spoofed face images. The proposed method utilizes the intermediate features of ViT, which have a good balance between local and global featu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.24402","kind":"arxiv","version":2},"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/2505.24402/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":"2026-07-05T11:21:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G7l+YSyFgQXmz2hGuq7IyaleuZ4fhG3BrBCWH7y8rSXFeWidfkwquDOYVTkkgQ5M49bm4fAwWOpemlNtN97JDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T15:54:25.949083Z"},"content_sha256":"d8d753b2fc77bdff4c4250d07b3e624a53fd6102c64fdc881602e7638070a76a","schema_version":"1.0","event_id":"sha256:d8d753b2fc77bdff4c4250d07b3e624a53fd6102c64fdc881602e7638070a76a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5ILUJTD5IJ4SXSOQGO6GRNMBIK/bundle.json","state_url":"https://pith.science/pith/5ILUJTD5IJ4SXSOQGO6GRNMBIK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5ILUJTD5IJ4SXSOQGO6GRNMBIK/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":"2026-08-19T15:54:25Z","links":{"resolver":"https://pith.science/pith/5ILUJTD5IJ4SXSOQGO6GRNMBIK","bundle":"https://pith.science/pith/5ILUJTD5IJ4SXSOQGO6GRNMBIK/bundle.json","state":"https://pith.science/pith/5ILUJTD5IJ4SXSOQGO6GRNMBIK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5ILUJTD5IJ4SXSOQGO6GRNMBIK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:5ILUJTD5IJ4SXSOQGO6GRNMBIK","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":"ba4e2b5d534f0fa721db4ad890571a81774357e2543052d9423db65dac027fe8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-30T09:33:01Z","title_canon_sha256":"b5756aa37c5fbcb0d66502941681d289187e06ed1fbe3746e9cc9e56fc55c4dc"},"schema_version":"1.0","source":{"id":"2505.24402","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.24402","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"arxiv_version","alias_value":"2505.24402v2","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.24402","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"pith_short_12","alias_value":"5ILUJTD5IJ4S","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"pith_short_16","alias_value":"5ILUJTD5IJ4SXSOQ","created_at":"2026-07-05T11:21:47Z"},{"alias_kind":"pith_short_8","alias_value":"5ILUJTD5","created_at":"2026-07-05T11:21:47Z"}],"graph_snapshots":[{"event_id":"sha256:d8d753b2fc77bdff4c4250d07b3e624a53fd6102c64fdc881602e7638070a76a","target":"graph","created_at":"2026-07-05T11:21:47Z","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/2505.24402/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Face recognition systems are designed to be robust against changes in head pose, illumination, and blurring during image capture. If a malicious person presents a face photo of the registered user, they may bypass the authentication process illegally. Such spoofing attacks need to be detected before face recognition. In this paper, we propose a spoofing attack detection method based on Vision Transformer (ViT) to detect minute differences between live and spoofed face images. The proposed method utilizes the intermediate features of ViT, which have a good balance between local and global featu","authors_text":"Koichi Ito, Masakatsu Nishigaki, Mika Feng, Takafumi Aoki, Tetsushi Ohki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-30T09:33:01Z","title":"Leveraging Intermediate Features of Vision Transformer for Face Anti-Spoofing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.24402","kind":"arxiv","version":2},"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:c5bddde97de433c8826701f5146fc8d6c263d13237d381c1c48f54668eb1cb44","target":"record","created_at":"2026-07-05T11:21:47Z","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":"ba4e2b5d534f0fa721db4ad890571a81774357e2543052d9423db65dac027fe8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-30T09:33:01Z","title_canon_sha256":"b5756aa37c5fbcb0d66502941681d289187e06ed1fbe3746e9cc9e56fc55c4dc"},"schema_version":"1.0","source":{"id":"2505.24402","kind":"arxiv","version":2}},"canonical_sha256":"ea1744cc7d42792bc9d033bc68b58142be0efc09535c9617b73ab41075df1ae2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea1744cc7d42792bc9d033bc68b58142be0efc09535c9617b73ab41075df1ae2","first_computed_at":"2026-07-05T11:21:47.558923Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:21:47.558923Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LDDNPVoVwfbPF2F8uDSozkP2MzY1pC16awwOzkGiaU5Roy0zI04unEOOJabvHl3HH23vXnvlF2ulA5NdsLXMCw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:21:47.559431Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.24402","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c5bddde97de433c8826701f5146fc8d6c263d13237d381c1c48f54668eb1cb44","sha256:d8d753b2fc77bdff4c4250d07b3e624a53fd6102c64fdc881602e7638070a76a"],"state_sha256":"feafb8cfe552f146b0a1471959ae8d56bc2ec47cabc65126614e78c938c1c475"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pdLFkiVzGdhkqRDaVTVNcOx92rOOuHy/gjWYdx5vCTMwXMJKt7wcTgeljoz9GNMrdXxltXH6KHCeru5n69oLBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T15:54:25.954273Z","bundle_sha256":"cacbf70ed1416a2ff780951a412f444ecd0cf9e5c1b6b0ebbca333388b38d5a6"}}