{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:GV7MJ7K5KQIGJWQ4NYXJC4Q7AG","short_pith_number":"pith:GV7MJ7K5","canonical_record":{"source":{"id":"2012.09118","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-12-16T18:01:04Z","cross_cats_sorted":[],"title_canon_sha256":"61cd49e07bd42e55163c4356382680ad3d5080b9a3725e80ecad5d0fa3aa9bec","abstract_canon_sha256":"3f4a3f81278c3e21f3c20f8c4c393904447cd04b78c5e64392dfa087c3052e38"},"schema_version":"1.0"},"canonical_sha256":"357ec4fd5d541064da1c6e2e91721f0191a249a9b48fbc93e4acffc415088c1d","source":{"kind":"arxiv","id":"2012.09118","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.09118","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"arxiv_version","alias_value":"2012.09118v2","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.09118","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"pith_short_12","alias_value":"GV7MJ7K5KQIG","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"pith_short_16","alias_value":"GV7MJ7K5KQIGJWQ4","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"pith_short_8","alias_value":"GV7MJ7K5","created_at":"2026-07-05T02:00:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:GV7MJ7K5KQIGJWQ4NYXJC4Q7AG","target":"record","payload":{"canonical_record":{"source":{"id":"2012.09118","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-12-16T18:01:04Z","cross_cats_sorted":[],"title_canon_sha256":"61cd49e07bd42e55163c4356382680ad3d5080b9a3725e80ecad5d0fa3aa9bec","abstract_canon_sha256":"3f4a3f81278c3e21f3c20f8c4c393904447cd04b78c5e64392dfa087c3052e38"},"schema_version":"1.0"},"canonical_sha256":"357ec4fd5d541064da1c6e2e91721f0191a249a9b48fbc93e4acffc415088c1d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:00:15.157614Z","signature_b64":"18ba5t7umVByRInAi+QFSZqco3FcO9gTDygfWqa6EgzBgPYA+AAguuoRUtistQuk0KRJPWZQ1bce8DZIjUb3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"357ec4fd5d541064da1c6e2e91721f0191a249a9b48fbc93e4acffc415088c1d","last_reissued_at":"2026-07-05T02:00:15.157189Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:00:15.157189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.09118","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":"2026-07-05T02:00:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yhicpeFterw2f6hctHQICpIN4ZmuHsMQitx7DUxAMMX5E6TH6avIF7snfMYWiffcbxel1SbJyOzr7Z4sN7D1DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T05:52:12.711827Z"},"content_sha256":"d6e37fb8bd429f111cbf11e804a82e9ebc610f6704b789ddbeaae9af5a61bca8","schema_version":"1.0","event_id":"sha256:d6e37fb8bd429f111cbf11e804a82e9ebc610f6704b789ddbeaae9af5a61bca8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:GV7MJ7K5KQIGJWQ4NYXJC4Q7AG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring Thematic Coherence in Fake News","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Anna Jurek-Loughrey, Deepak P, Martins Samuel Dogo","submitted_at":"2020-12-16T18:01:04Z","abstract_excerpt":"The spread of fake news remains a serious global issue; understanding and curtailing it is paramount. One way of differentiating between deceptive and truthful stories is by analyzing their coherence. This study explores the use of topic models to analyze the coherence of cross-domain news shared online. Experimental results on seven cross-domain datasets demonstrate that fake news shows a greater thematic deviation between its opening sentences and its remainder."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.09118","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/2012.09118/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":"2026-07-05T02:00:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kbpmXC+ufmZT17pLoGxJrvFdoMCOmFipePIEGmjIbylEGM9ZAPAW35jJ2X6N/USkv/Pxby/9ltPZVBO1VaPECw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T05:52:12.712846Z"},"content_sha256":"97b08e996213d7aba33433f2307571d3aefaedb72c01a7cca4230d6ef3f9ff38","schema_version":"1.0","event_id":"sha256:97b08e996213d7aba33433f2307571d3aefaedb72c01a7cca4230d6ef3f9ff38"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GV7MJ7K5KQIGJWQ4NYXJC4Q7AG/bundle.json","state_url":"https://pith.science/pith/GV7MJ7K5KQIGJWQ4NYXJC4Q7AG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GV7MJ7K5KQIGJWQ4NYXJC4Q7AG/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":"2026-08-19T05:52:12Z","links":{"resolver":"https://pith.science/pith/GV7MJ7K5KQIGJWQ4NYXJC4Q7AG","bundle":"https://pith.science/pith/GV7MJ7K5KQIGJWQ4NYXJC4Q7AG/bundle.json","state":"https://pith.science/pith/GV7MJ7K5KQIGJWQ4NYXJC4Q7AG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GV7MJ7K5KQIGJWQ4NYXJC4Q7AG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:GV7MJ7K5KQIGJWQ4NYXJC4Q7AG","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":"3f4a3f81278c3e21f3c20f8c4c393904447cd04b78c5e64392dfa087c3052e38","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-12-16T18:01:04Z","title_canon_sha256":"61cd49e07bd42e55163c4356382680ad3d5080b9a3725e80ecad5d0fa3aa9bec"},"schema_version":"1.0","source":{"id":"2012.09118","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.09118","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"arxiv_version","alias_value":"2012.09118v2","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.09118","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"pith_short_12","alias_value":"GV7MJ7K5KQIG","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"pith_short_16","alias_value":"GV7MJ7K5KQIGJWQ4","created_at":"2026-07-05T02:00:15Z"},{"alias_kind":"pith_short_8","alias_value":"GV7MJ7K5","created_at":"2026-07-05T02:00:15Z"}],"graph_snapshots":[{"event_id":"sha256:97b08e996213d7aba33433f2307571d3aefaedb72c01a7cca4230d6ef3f9ff38","target":"graph","created_at":"2026-07-05T02:00:15Z","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/2012.09118/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The spread of fake news remains a serious global issue; understanding and curtailing it is paramount. One way of differentiating between deceptive and truthful stories is by analyzing their coherence. This study explores the use of topic models to analyze the coherence of cross-domain news shared online. Experimental results on seven cross-domain datasets demonstrate that fake news shows a greater thematic deviation between its opening sentences and its remainder.","authors_text":"Anna Jurek-Loughrey, Deepak P, Martins Samuel Dogo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-12-16T18:01:04Z","title":"Exploring Thematic Coherence in Fake News"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.09118","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:d6e37fb8bd429f111cbf11e804a82e9ebc610f6704b789ddbeaae9af5a61bca8","target":"record","created_at":"2026-07-05T02:00:15Z","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":"3f4a3f81278c3e21f3c20f8c4c393904447cd04b78c5e64392dfa087c3052e38","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-12-16T18:01:04Z","title_canon_sha256":"61cd49e07bd42e55163c4356382680ad3d5080b9a3725e80ecad5d0fa3aa9bec"},"schema_version":"1.0","source":{"id":"2012.09118","kind":"arxiv","version":2}},"canonical_sha256":"357ec4fd5d541064da1c6e2e91721f0191a249a9b48fbc93e4acffc415088c1d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"357ec4fd5d541064da1c6e2e91721f0191a249a9b48fbc93e4acffc415088c1d","first_computed_at":"2026-07-05T02:00:15.157189Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:00:15.157189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"18ba5t7umVByRInAi+QFSZqco3FcO9gTDygfWqa6EgzBgPYA+AAguuoRUtistQuk0KRJPWZQ1bce8DZIjUb3DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:00:15.157614Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.09118","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6e37fb8bd429f111cbf11e804a82e9ebc610f6704b789ddbeaae9af5a61bca8","sha256:97b08e996213d7aba33433f2307571d3aefaedb72c01a7cca4230d6ef3f9ff38"],"state_sha256":"9fad5b71b58c02e99ea37e4289316512c11950223d87e858cfc3f3d1d72bd757"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eAtzqjhgPqXb7SALxRBRSazbsnUDst/KqB2IzcCNK5Jz/ixps4Kn1Ecy1I89tE0RrCYy++9XizDwOKZ6x5tnDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T05:52:12.719132Z","bundle_sha256":"7ac89d81ed6bf89116be05c4284c5464d9ab48d0fac5f9f7b4466fbc7a585225"}}