{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:YZRVKA3PHXPGO6E5VH4KPNNPUH","short_pith_number":"pith:YZRVKA3P","canonical_record":{"source":{"id":"2107.12873","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2021-07-27T15:15:20Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"d819d42050a6e76121cb616aac5434761978db08ad067ccb6be70b3fa1f3f5a1","abstract_canon_sha256":"31bf9f24e23c815748cab9a37067059a1401fa0ffa6aa0b1abd1ac61b4b0f57c"},"schema_version":"1.0"},"canonical_sha256":"c66355036f3dde67789da9f8a7b5afa1d52e8e80a468601e9631bb8f1a29740e","source":{"kind":"arxiv","id":"2107.12873","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.12873","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"arxiv_version","alias_value":"2107.12873v1","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.12873","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"pith_short_12","alias_value":"YZRVKA3PHXPG","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"pith_short_16","alias_value":"YZRVKA3PHXPGO6E5","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"pith_short_8","alias_value":"YZRVKA3P","created_at":"2026-07-05T03:01:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:YZRVKA3PHXPGO6E5VH4KPNNPUH","target":"record","payload":{"canonical_record":{"source":{"id":"2107.12873","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2021-07-27T15:15:20Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"d819d42050a6e76121cb616aac5434761978db08ad067ccb6be70b3fa1f3f5a1","abstract_canon_sha256":"31bf9f24e23c815748cab9a37067059a1401fa0ffa6aa0b1abd1ac61b4b0f57c"},"schema_version":"1.0"},"canonical_sha256":"c66355036f3dde67789da9f8a7b5afa1d52e8e80a468601e9631bb8f1a29740e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:01:01.570726Z","signature_b64":"2pT+G0mSz5Z5I+HsA6/nyzrPmB657DAoqvzV7j6gCn4Gh/NiPfPsUMI4EDK5CgtVvC2oYfWzUC7Qj7RHp9Z6AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c66355036f3dde67789da9f8a7b5afa1d52e8e80a468601e9631bb8f1a29740e","last_reissued_at":"2026-07-05T03:01:01.570241Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:01:01.570241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2107.12873","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":"2026-07-05T03:01:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EdzYhisTYdF6XwxG5yaIFNJ6l7LOJgNIG1U8OCQB8RhwLFKZGKgK8e2wY7uLCb+hzap8DaQej9hLUJrTQU+lBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T16:20:43.655830Z"},"content_sha256":"a5e4687b4d4e2df0a1b140c34be24478e2351a19d1f341ffa09a0a56ca6d0ff1","schema_version":"1.0","event_id":"sha256:a5e4687b4d4e2df0a1b140c34be24478e2351a19d1f341ffa09a0a56ca6d0ff1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:YZRVKA3PHXPGO6E5VH4KPNNPUH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PDF-Malware: An Overview on Threats, Detection and Evasion Attacks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CR","authors_text":"Ihsen Alouani, Nicolas Fleury, Theo Dubrunquez","submitted_at":"2021-07-27T15:15:20Z","abstract_excerpt":"In the recent years, Portable Document Format, commonly known as PDF, has become a democratized standard for document exchange and dissemination. This trend has been due to its characteristics such as its flexibility and portability across platforms. The widespread use of PDF has installed a false impression of inherent safety among benign users. However, the characteristics of PDF motivated hackers to exploit various types of vulnerabilities, overcome security safeguards, thereby making the PDF format one of the most efficient malicious code attack vectors. Therefore, efficiently detecting ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.12873","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/2107.12873/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":"2026-07-05T03:01:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VE6JBiRX18pFCGL8r8jGw5HvSppmYy59icPxCgZLbSdCci1m1G8+dn0m4Ahz9OjkAQ7GYm9wBMW5/LDAUdw+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T16:20:43.656745Z"},"content_sha256":"90b894e04327a878c1db3e10c4780d9e4309401055fb5ddbd6a76e38a0b9af3a","schema_version":"1.0","event_id":"sha256:90b894e04327a878c1db3e10c4780d9e4309401055fb5ddbd6a76e38a0b9af3a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YZRVKA3PHXPGO6E5VH4KPNNPUH/bundle.json","state_url":"https://pith.science/pith/YZRVKA3PHXPGO6E5VH4KPNNPUH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YZRVKA3PHXPGO6E5VH4KPNNPUH/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":"2026-08-20T16:20:43Z","links":{"resolver":"https://pith.science/pith/YZRVKA3PHXPGO6E5VH4KPNNPUH","bundle":"https://pith.science/pith/YZRVKA3PHXPGO6E5VH4KPNNPUH/bundle.json","state":"https://pith.science/pith/YZRVKA3PHXPGO6E5VH4KPNNPUH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YZRVKA3PHXPGO6E5VH4KPNNPUH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:YZRVKA3PHXPGO6E5VH4KPNNPUH","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":"31bf9f24e23c815748cab9a37067059a1401fa0ffa6aa0b1abd1ac61b4b0f57c","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2021-07-27T15:15:20Z","title_canon_sha256":"d819d42050a6e76121cb616aac5434761978db08ad067ccb6be70b3fa1f3f5a1"},"schema_version":"1.0","source":{"id":"2107.12873","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.12873","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"arxiv_version","alias_value":"2107.12873v1","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.12873","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"pith_short_12","alias_value":"YZRVKA3PHXPG","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"pith_short_16","alias_value":"YZRVKA3PHXPGO6E5","created_at":"2026-07-05T03:01:01Z"},{"alias_kind":"pith_short_8","alias_value":"YZRVKA3P","created_at":"2026-07-05T03:01:01Z"}],"graph_snapshots":[{"event_id":"sha256:90b894e04327a878c1db3e10c4780d9e4309401055fb5ddbd6a76e38a0b9af3a","target":"graph","created_at":"2026-07-05T03:01:01Z","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/2107.12873/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the recent years, Portable Document Format, commonly known as PDF, has become a democratized standard for document exchange and dissemination. This trend has been due to its characteristics such as its flexibility and portability across platforms. The widespread use of PDF has installed a false impression of inherent safety among benign users. However, the characteristics of PDF motivated hackers to exploit various types of vulnerabilities, overcome security safeguards, thereby making the PDF format one of the most efficient malicious code attack vectors. Therefore, efficiently detecting ma","authors_text":"Ihsen Alouani, Nicolas Fleury, Theo Dubrunquez","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2021-07-27T15:15:20Z","title":"PDF-Malware: An Overview on Threats, Detection and Evasion Attacks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.12873","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:a5e4687b4d4e2df0a1b140c34be24478e2351a19d1f341ffa09a0a56ca6d0ff1","target":"record","created_at":"2026-07-05T03:01:01Z","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":"31bf9f24e23c815748cab9a37067059a1401fa0ffa6aa0b1abd1ac61b4b0f57c","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2021-07-27T15:15:20Z","title_canon_sha256":"d819d42050a6e76121cb616aac5434761978db08ad067ccb6be70b3fa1f3f5a1"},"schema_version":"1.0","source":{"id":"2107.12873","kind":"arxiv","version":1}},"canonical_sha256":"c66355036f3dde67789da9f8a7b5afa1d52e8e80a468601e9631bb8f1a29740e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c66355036f3dde67789da9f8a7b5afa1d52e8e80a468601e9631bb8f1a29740e","first_computed_at":"2026-07-05T03:01:01.570241Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:01:01.570241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2pT+G0mSz5Z5I+HsA6/nyzrPmB657DAoqvzV7j6gCn4Gh/NiPfPsUMI4EDK5CgtVvC2oYfWzUC7Qj7RHp9Z6AA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:01:01.570726Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.12873","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5e4687b4d4e2df0a1b140c34be24478e2351a19d1f341ffa09a0a56ca6d0ff1","sha256:90b894e04327a878c1db3e10c4780d9e4309401055fb5ddbd6a76e38a0b9af3a"],"state_sha256":"17afb5e099e9c273bacc5d100d4bc947949b1a66721984c7f533d522fddb1e4d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QbzbKFQ9Z9oUs0coSBqoH2knAHSevqkNLY4w7BfhPN3bJBhlnZb5xj85PnUQdEeCMvL0R2OfiOBvPP5nWOtYCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T16:20:43.662665Z","bundle_sha256":"0f61658581f82eac84a06014bdb5cb214abeb08b3c5893774cd85bdbf697e735"}}