{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:FPDGYZFAUBHYGOBTYV7Y2KVUQ7","short_pith_number":"pith:FPDGYZFA","canonical_record":{"source":{"id":"2603.09242","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-03-10T06:16:35Z","cross_cats_sorted":[],"title_canon_sha256":"6c2af9684dc125f0e009292b6644860e4017da22aa82c2b6ba9f3c5182abed98","abstract_canon_sha256":"b10e2c03ac35faea5943d2b97e5f0f321b0401386ed6e82d78aec50e6ccb6879"},"schema_version":"1.0"},"canonical_sha256":"2bc66c64a0a04f833833c57f8d2ab487d6b30f46d81334071209cd8c0ca88dea","source":{"kind":"arxiv","id":"2603.09242","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.09242","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"arxiv_version","alias_value":"2603.09242v2","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.09242","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"pith_short_12","alias_value":"FPDGYZFAUBHY","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"pith_short_16","alias_value":"FPDGYZFAUBHYGOBT","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"pith_short_8","alias_value":"FPDGYZFA","created_at":"2026-06-04T01:08:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:FPDGYZFAUBHYGOBTYV7Y2KVUQ7","target":"record","payload":{"canonical_record":{"source":{"id":"2603.09242","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-03-10T06:16:35Z","cross_cats_sorted":[],"title_canon_sha256":"6c2af9684dc125f0e009292b6644860e4017da22aa82c2b6ba9f3c5182abed98","abstract_canon_sha256":"b10e2c03ac35faea5943d2b97e5f0f321b0401386ed6e82d78aec50e6ccb6879"},"schema_version":"1.0"},"canonical_sha256":"2bc66c64a0a04f833833c57f8d2ab487d6b30f46d81334071209cd8c0ca88dea","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-04T01:08:47.823116Z","signature_b64":"oLKaolWRI/gsmqrrEP6y9INJwu/dvu5deiAvP9o1HqLTP0CaVe97sVmbn7A7on4JZQXkehMotis2gbrYh3CpAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2bc66c64a0a04f833833c57f8d2ab487d6b30f46d81334071209cd8c0ca88dea","last_reissued_at":"2026-06-04T01:08:47.822389Z","signature_status":"signed_v1","first_computed_at":"2026-06-04T01:08:47.822389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.09242","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":"2026-06-04T01:08:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hw2z9NvVxsor1ki+oWaLWb2AuqKMPgleG8pkBUwu+/f46erhMJ+Su+mgYdljkZIR0uoiZcmPUYygz6Ql2EYFCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T12:39:11.957418Z"},"content_sha256":"dd3923f87a34a3941fe8fef50218e58ca45ac0eddf6ce47d561fa8fff618b620","schema_version":"1.0","event_id":"sha256:dd3923f87a34a3941fe8fef50218e58ca45ac0eddf6ce47d561fa8fff618b620"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:FPDGYZFAUBHYGOBTYV7Y2KVUQ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"When Detectors Forget Forensics: Blocking Semantic Shortcuts for Generalizable AI-Generated Image Detection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Bin Gong, Chao Shuai, Chenlin Zou, Kui Ren, Shaojing Fan, Weichen Lian, Xiuli Bi, Zhenguang Liu, Zhongjie Ba","submitted_at":"2026-03-10T06:16:35Z","abstract_excerpt":"The growing realism of generative models has blurred the boundary between real and synthetic content, posing significant challenges to reliable AI-generated image detection. Although large-scale pre-trained Vision Foundation Models have advanced detection capability, their generalization to images from unseen generation pipelines remains inadequate. In this paper, we identify, for the first time, a key failure mechanism, termed \\emph{semantic fallback}, wherein forensic fine-tuning fails to fully reshape the representation space. Consequently, the resulting representations remain organized alo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.09242","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/2603.09242/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":"2026-06-04T01:08:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EY/N9kQjKB/+4ryUe5Xb1vKPzlkebE5CBJDl3VJbVMKgG1Ae3GmmQsAb+f8BfZB2i6NQEh75jWQR8PDiy6LKCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T12:39:11.958233Z"},"content_sha256":"b64d8156e4dde967446e39c25f5fca9481efcb9d126e71b36f457e8aded49110","schema_version":"1.0","event_id":"sha256:b64d8156e4dde967446e39c25f5fca9481efcb9d126e71b36f457e8aded49110"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FPDGYZFAUBHYGOBTYV7Y2KVUQ7/bundle.json","state_url":"https://pith.science/pith/FPDGYZFAUBHYGOBTYV7Y2KVUQ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FPDGYZFAUBHYGOBTYV7Y2KVUQ7/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":"2026-06-10T12:39:11Z","links":{"resolver":"https://pith.science/pith/FPDGYZFAUBHYGOBTYV7Y2KVUQ7","bundle":"https://pith.science/pith/FPDGYZFAUBHYGOBTYV7Y2KVUQ7/bundle.json","state":"https://pith.science/pith/FPDGYZFAUBHYGOBTYV7Y2KVUQ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FPDGYZFAUBHYGOBTYV7Y2KVUQ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FPDGYZFAUBHYGOBTYV7Y2KVUQ7","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":"b10e2c03ac35faea5943d2b97e5f0f321b0401386ed6e82d78aec50e6ccb6879","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-03-10T06:16:35Z","title_canon_sha256":"6c2af9684dc125f0e009292b6644860e4017da22aa82c2b6ba9f3c5182abed98"},"schema_version":"1.0","source":{"id":"2603.09242","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.09242","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"arxiv_version","alias_value":"2603.09242v2","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.09242","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"pith_short_12","alias_value":"FPDGYZFAUBHY","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"pith_short_16","alias_value":"FPDGYZFAUBHYGOBT","created_at":"2026-06-04T01:08:47Z"},{"alias_kind":"pith_short_8","alias_value":"FPDGYZFA","created_at":"2026-06-04T01:08:47Z"}],"graph_snapshots":[{"event_id":"sha256:b64d8156e4dde967446e39c25f5fca9481efcb9d126e71b36f457e8aded49110","target":"graph","created_at":"2026-06-04T01:08:47Z","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/2603.09242/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The growing realism of generative models has blurred the boundary between real and synthetic content, posing significant challenges to reliable AI-generated image detection. Although large-scale pre-trained Vision Foundation Models have advanced detection capability, their generalization to images from unseen generation pipelines remains inadequate. In this paper, we identify, for the first time, a key failure mechanism, termed \\emph{semantic fallback}, wherein forensic fine-tuning fails to fully reshape the representation space. Consequently, the resulting representations remain organized alo","authors_text":"Bin Gong, Chao Shuai, Chenlin Zou, Kui Ren, Shaojing Fan, Weichen Lian, Xiuli Bi, Zhenguang Liu, Zhongjie Ba","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-03-10T06:16:35Z","title":"When Detectors Forget Forensics: Blocking Semantic Shortcuts for Generalizable AI-Generated Image Detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.09242","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:dd3923f87a34a3941fe8fef50218e58ca45ac0eddf6ce47d561fa8fff618b620","target":"record","created_at":"2026-06-04T01:08:47Z","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":"b10e2c03ac35faea5943d2b97e5f0f321b0401386ed6e82d78aec50e6ccb6879","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-03-10T06:16:35Z","title_canon_sha256":"6c2af9684dc125f0e009292b6644860e4017da22aa82c2b6ba9f3c5182abed98"},"schema_version":"1.0","source":{"id":"2603.09242","kind":"arxiv","version":2}},"canonical_sha256":"2bc66c64a0a04f833833c57f8d2ab487d6b30f46d81334071209cd8c0ca88dea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2bc66c64a0a04f833833c57f8d2ab487d6b30f46d81334071209cd8c0ca88dea","first_computed_at":"2026-06-04T01:08:47.822389Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-04T01:08:47.822389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oLKaolWRI/gsmqrrEP6y9INJwu/dvu5deiAvP9o1HqLTP0CaVe97sVmbn7A7on4JZQXkehMotis2gbrYh3CpAg==","signature_status":"signed_v1","signed_at":"2026-06-04T01:08:47.823116Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.09242","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd3923f87a34a3941fe8fef50218e58ca45ac0eddf6ce47d561fa8fff618b620","sha256:b64d8156e4dde967446e39c25f5fca9481efcb9d126e71b36f457e8aded49110"],"state_sha256":"43ad012b88bde83c87fdcb71cb4db9b8f9488ba9c4b422bdffda4631b274946b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"odSBiaUiAjNDh1F9uO0QO8aXEZBwU+bzmQjGl7qQnTisxUFRCEwZkfLIW3yDDg/lHTRQIGRjjZwmyUqdUSIgDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T12:39:11.961558Z","bundle_sha256":"8fb0e7ae91f9516868a9ae8e6a9b832ff5c7b2d82b3d33bb931454024fcb3cda"}}