{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:AH7QIL34CNS2NPT5HSTLVIWSRJ","short_pith_number":"pith:AH7QIL34","canonical_record":{"source":{"id":"2502.09689","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-02-13T16:48:27Z","cross_cats_sorted":["cs.CV","cs.CY"],"title_canon_sha256":"0c075223466aea8e0964739ba0d2089e8ce9e4a97fbf6654b8a4b4eea08013d1","abstract_canon_sha256":"61ee45e4883878470be72de472c9df3fa0fe8a11a046611d9fb5423df21ca6be"},"schema_version":"1.0"},"canonical_sha256":"01ff042f7c1365a6be7d3ca6baa2d28a5b34d8ae646603da050704f299bd8af9","source":{"kind":"arxiv","id":"2502.09689","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.09689","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"arxiv_version","alias_value":"2502.09689v1","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.09689","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"pith_short_12","alias_value":"AH7QIL34CNS2","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"pith_short_16","alias_value":"AH7QIL34CNS2NPT5","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"pith_short_8","alias_value":"AH7QIL34","created_at":"2026-07-05T10:14:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:AH7QIL34CNS2NPT5HSTLVIWSRJ","target":"record","payload":{"canonical_record":{"source":{"id":"2502.09689","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-02-13T16:48:27Z","cross_cats_sorted":["cs.CV","cs.CY"],"title_canon_sha256":"0c075223466aea8e0964739ba0d2089e8ce9e4a97fbf6654b8a4b4eea08013d1","abstract_canon_sha256":"61ee45e4883878470be72de472c9df3fa0fe8a11a046611d9fb5423df21ca6be"},"schema_version":"1.0"},"canonical_sha256":"01ff042f7c1365a6be7d3ca6baa2d28a5b34d8ae646603da050704f299bd8af9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:14:10.631845Z","signature_b64":"x9PxYXCqcnVkXeNoGaDkpU8vjZEY94O/ChMktmWC2fiGRkaTqiC/u/9w6W509tM79YIM4BhZKVNt7cVi8BI8Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01ff042f7c1365a6be7d3ca6baa2d28a5b34d8ae646603da050704f299bd8af9","last_reissued_at":"2026-07-05T10:14:10.631389Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:14:10.631389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.09689","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":"2026-07-05T10:14:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oLkxWFFOnSHad1gxzxRnxBlrFzEHDtWN/859xzehv7aZ3+1HSqbwYerQk73XVFs4uW4WfWrY50+fraoi3DlFAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T12:56:15.078769Z"},"content_sha256":"c8335f0be9e60d2375866182cea6c6b4b922a1d6bf97d5b6dc44774db4b94893","schema_version":"1.0","event_id":"sha256:c8335f0be9e60d2375866182cea6c6b4b922a1d6bf97d5b6dc44774db4b94893"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:AH7QIL34CNS2NPT5HSTLVIWSRJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Large Language Models and Provenance Metadata for Determining the Relevance of Images and Videos in News Stories","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.CV","cs.CY"],"primary_cat":"cs.CL","authors_text":"Matyas Bohacek, Tomas Peterka","submitted_at":"2025-02-13T16:48:27Z","abstract_excerpt":"The most effective misinformation campaigns are multimodal, often combining text with images and videos taken out of context -- or fabricating them entirely -- to support a given narrative. Contemporary methods for detecting misinformation, whether in deepfakes or text articles, often miss the interplay between multiple modalities. Built around a large language model, the system proposed in this paper addresses these challenges. It analyzes both the article's text and the provenance metadata of included images and videos to determine whether they are relevant. We open-source the system prototy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.09689","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/2502.09689/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":"2026-07-05T10:14:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CaKf+ytT1FSir4+I5swbiBWf5ORgzPZz0Ah0b4CwtFQmOo90xt2YASwbZXkWeSUt7swj3N43FVrkwFJk7xo2Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T12:56:15.079396Z"},"content_sha256":"920b8fdf977fc7af4c93f6b7076cc4d9ff70c246252fd7d455f218d703df6a7f","schema_version":"1.0","event_id":"sha256:920b8fdf977fc7af4c93f6b7076cc4d9ff70c246252fd7d455f218d703df6a7f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AH7QIL34CNS2NPT5HSTLVIWSRJ/bundle.json","state_url":"https://pith.science/pith/AH7QIL34CNS2NPT5HSTLVIWSRJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AH7QIL34CNS2NPT5HSTLVIWSRJ/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":"2026-08-08T12:56:15Z","links":{"resolver":"https://pith.science/pith/AH7QIL34CNS2NPT5HSTLVIWSRJ","bundle":"https://pith.science/pith/AH7QIL34CNS2NPT5HSTLVIWSRJ/bundle.json","state":"https://pith.science/pith/AH7QIL34CNS2NPT5HSTLVIWSRJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AH7QIL34CNS2NPT5HSTLVIWSRJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:AH7QIL34CNS2NPT5HSTLVIWSRJ","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":"61ee45e4883878470be72de472c9df3fa0fe8a11a046611d9fb5423df21ca6be","cross_cats_sorted":["cs.CV","cs.CY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-02-13T16:48:27Z","title_canon_sha256":"0c075223466aea8e0964739ba0d2089e8ce9e4a97fbf6654b8a4b4eea08013d1"},"schema_version":"1.0","source":{"id":"2502.09689","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.09689","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"arxiv_version","alias_value":"2502.09689v1","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.09689","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"pith_short_12","alias_value":"AH7QIL34CNS2","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"pith_short_16","alias_value":"AH7QIL34CNS2NPT5","created_at":"2026-07-05T10:14:10Z"},{"alias_kind":"pith_short_8","alias_value":"AH7QIL34","created_at":"2026-07-05T10:14:10Z"}],"graph_snapshots":[{"event_id":"sha256:920b8fdf977fc7af4c93f6b7076cc4d9ff70c246252fd7d455f218d703df6a7f","target":"graph","created_at":"2026-07-05T10:14:10Z","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/2502.09689/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The most effective misinformation campaigns are multimodal, often combining text with images and videos taken out of context -- or fabricating them entirely -- to support a given narrative. Contemporary methods for detecting misinformation, whether in deepfakes or text articles, often miss the interplay between multiple modalities. Built around a large language model, the system proposed in this paper addresses these challenges. It analyzes both the article's text and the provenance metadata of included images and videos to determine whether they are relevant. We open-source the system prototy","authors_text":"Matyas Bohacek, Tomas Peterka","cross_cats":["cs.CV","cs.CY"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-02-13T16:48:27Z","title":"Large Language Models and Provenance Metadata for Determining the Relevance of Images and Videos in News Stories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.09689","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:c8335f0be9e60d2375866182cea6c6b4b922a1d6bf97d5b6dc44774db4b94893","target":"record","created_at":"2026-07-05T10:14:10Z","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":"61ee45e4883878470be72de472c9df3fa0fe8a11a046611d9fb5423df21ca6be","cross_cats_sorted":["cs.CV","cs.CY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-02-13T16:48:27Z","title_canon_sha256":"0c075223466aea8e0964739ba0d2089e8ce9e4a97fbf6654b8a4b4eea08013d1"},"schema_version":"1.0","source":{"id":"2502.09689","kind":"arxiv","version":1}},"canonical_sha256":"01ff042f7c1365a6be7d3ca6baa2d28a5b34d8ae646603da050704f299bd8af9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01ff042f7c1365a6be7d3ca6baa2d28a5b34d8ae646603da050704f299bd8af9","first_computed_at":"2026-07-05T10:14:10.631389Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:14:10.631389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x9PxYXCqcnVkXeNoGaDkpU8vjZEY94O/ChMktmWC2fiGRkaTqiC/u/9w6W509tM79YIM4BhZKVNt7cVi8BI8Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:14:10.631845Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.09689","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8335f0be9e60d2375866182cea6c6b4b922a1d6bf97d5b6dc44774db4b94893","sha256:920b8fdf977fc7af4c93f6b7076cc4d9ff70c246252fd7d455f218d703df6a7f"],"state_sha256":"907c5c62e02d9042dc6049583bbcaaf2d424c2d3cbd3f09d531bd51fd4465e58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ykSSz12t+jzRmkFYxS4WcBvWHGazKs3gV0kG7kU7yB6myY1iI++r/AO8OOfCulSdCWdmqQmL56J8xWrXGIg8AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T12:56:15.084192Z","bundle_sha256":"3d5c7754958e9644980421a0b3c76e4a905b06f2b8cabd21b183e2f51820d13f"}}