{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:5N6SQHD26KU5QY3KASEGOAEKNJ","short_pith_number":"pith:5N6SQHD2","canonical_record":{"source":{"id":"1912.08926","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2019-11-25T03:55:55Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"5122c93c5228e5c29a74339b163fd44fcf60ad3fb78a1aef6fd96faceab4c7f8","abstract_canon_sha256":"7434ad9964658692b1ce13067121c11dec5d64bbe7e8a603f6c6184ce8577e7f"},"schema_version":"1.0"},"canonical_sha256":"eb7d281c7af2a9d8636a048867008a6a646b91299fdc26deac95a9a3e6c4d6ed","source":{"kind":"arxiv","id":"1912.08926","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.08926","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"1912.08926v1","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.08926","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"5N6SQHD26KU5","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"5N6SQHD26KU5QY3K","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"5N6SQHD2","created_at":"2026-07-05T00:27:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:5N6SQHD26KU5QY3KASEGOAEKNJ","target":"record","payload":{"canonical_record":{"source":{"id":"1912.08926","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2019-11-25T03:55:55Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"5122c93c5228e5c29a74339b163fd44fcf60ad3fb78a1aef6fd96faceab4c7f8","abstract_canon_sha256":"7434ad9964658692b1ce13067121c11dec5d64bbe7e8a603f6c6184ce8577e7f"},"schema_version":"1.0"},"canonical_sha256":"eb7d281c7af2a9d8636a048867008a6a646b91299fdc26deac95a9a3e6c4d6ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:27:21.764587Z","signature_b64":"1hl6XSXNOdPajIS+8fSwa3c5+uUHw+hCtAwQl0IdH8twMaRXGJnOEEhdwbcpAV77XwZLEX2QgnIYqQ+rkl1ACQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb7d281c7af2a9d8636a048867008a6a646b91299fdc26deac95a9a3e6c4d6ed","last_reissued_at":"2026-07-05T00:27:21.764173Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:27:21.764173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1912.08926","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":"2026-07-05T00:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ICn1P4b7TBTP/IiZbpApHHmSLDLZl1FFf/YOhePb3MSfgSum5mK/74UuPK+cI2rQdYNs+9rblgp3ieza5APWAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:47:02.661327Z"},"content_sha256":"92a3e627a4550f9b41668bbe7190075a043d538498f5edd32da7193685757bc5","schema_version":"1.0","event_id":"sha256:92a3e627a4550f9b41668bbe7190075a043d538498f5edd32da7193685757bc5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:5N6SQHD26KU5QY3KASEGOAEKNJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Rumor Detection and Classification for Twitter Data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","stat.ML"],"primary_cat":"cs.SI","authors_text":"Mona T Diab, Sardar Hamidian","submitted_at":"2019-11-25T03:55:55Z","abstract_excerpt":"With the pervasiveness of online media data as a source of information verifying the validity of this information is becoming even more important yet quite challenging. Rumors spread a large quantity of misinformation on microblogs. In this study we address two common issues within the context of microblog social media. First we detect rumors as a type of misinformation propagation and next we go beyond detection to perform the task of rumor classification. WE explore the problem using a standard data set. We devise novel features and study their impact on the task. We experiment with various "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.08926","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/1912.08926/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":"2026-07-05T00:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sDXHFZew8im2b3/neA7YFlOSSFx2LqAq97YiFcdkdFKF9jaU+GS4N5SdTXjtpStpCLkXz7K5h3tk4a0kVsUzBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:47:02.661888Z"},"content_sha256":"0a948705f7b03da96fced45aa630e8b93a145eceb72d00f6f0fdb6b3767b344b","schema_version":"1.0","event_id":"sha256:0a948705f7b03da96fced45aa630e8b93a145eceb72d00f6f0fdb6b3767b344b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5N6SQHD26KU5QY3KASEGOAEKNJ/bundle.json","state_url":"https://pith.science/pith/5N6SQHD26KU5QY3KASEGOAEKNJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5N6SQHD26KU5QY3KASEGOAEKNJ/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":"2026-08-03T21:47:02Z","links":{"resolver":"https://pith.science/pith/5N6SQHD26KU5QY3KASEGOAEKNJ","bundle":"https://pith.science/pith/5N6SQHD26KU5QY3KASEGOAEKNJ/bundle.json","state":"https://pith.science/pith/5N6SQHD26KU5QY3KASEGOAEKNJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5N6SQHD26KU5QY3KASEGOAEKNJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:5N6SQHD26KU5QY3KASEGOAEKNJ","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":"7434ad9964658692b1ce13067121c11dec5d64bbe7e8a603f6c6184ce8577e7f","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2019-11-25T03:55:55Z","title_canon_sha256":"5122c93c5228e5c29a74339b163fd44fcf60ad3fb78a1aef6fd96faceab4c7f8"},"schema_version":"1.0","source":{"id":"1912.08926","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.08926","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"1912.08926v1","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.08926","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"5N6SQHD26KU5","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"5N6SQHD26KU5QY3K","created_at":"2026-07-05T00:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"5N6SQHD2","created_at":"2026-07-05T00:27:21Z"}],"graph_snapshots":[{"event_id":"sha256:0a948705f7b03da96fced45aa630e8b93a145eceb72d00f6f0fdb6b3767b344b","target":"graph","created_at":"2026-07-05T00:27:21Z","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/1912.08926/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With the pervasiveness of online media data as a source of information verifying the validity of this information is becoming even more important yet quite challenging. Rumors spread a large quantity of misinformation on microblogs. In this study we address two common issues within the context of microblog social media. First we detect rumors as a type of misinformation propagation and next we go beyond detection to perform the task of rumor classification. WE explore the problem using a standard data set. We devise novel features and study their impact on the task. We experiment with various ","authors_text":"Mona T Diab, Sardar Hamidian","cross_cats":["cs.LG","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2019-11-25T03:55:55Z","title":"Rumor Detection and Classification for Twitter Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.08926","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":"sha256:92a3e627a4550f9b41668bbe7190075a043d538498f5edd32da7193685757bc5","target":"record","created_at":"2026-07-05T00:27:21Z","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":"7434ad9964658692b1ce13067121c11dec5d64bbe7e8a603f6c6184ce8577e7f","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2019-11-25T03:55:55Z","title_canon_sha256":"5122c93c5228e5c29a74339b163fd44fcf60ad3fb78a1aef6fd96faceab4c7f8"},"schema_version":"1.0","source":{"id":"1912.08926","kind":"arxiv","version":1}},"canonical_sha256":"eb7d281c7af2a9d8636a048867008a6a646b91299fdc26deac95a9a3e6c4d6ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb7d281c7af2a9d8636a048867008a6a646b91299fdc26deac95a9a3e6c4d6ed","first_computed_at":"2026-07-05T00:27:21.764173Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:27:21.764173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1hl6XSXNOdPajIS+8fSwa3c5+uUHw+hCtAwQl0IdH8twMaRXGJnOEEhdwbcpAV77XwZLEX2QgnIYqQ+rkl1ACQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:27:21.764587Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.08926","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92a3e627a4550f9b41668bbe7190075a043d538498f5edd32da7193685757bc5","sha256:0a948705f7b03da96fced45aa630e8b93a145eceb72d00f6f0fdb6b3767b344b"],"state_sha256":"479b80896fc1fc2af8ed886126d00a1c78ba01f657bff5b9df68b1cc238715db"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3/KLuxp7kdMsO3yQpRftBb5D7DINN/RPQBbW/aai5culmmr+wf3sZAEIrxJyz9lIHdjDkWR6uXtWt6AQjuEIBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T21:47:02.667792Z","bundle_sha256":"617435ba82c2fe29a5517437cb5666e0a2f67606f7a073555837c0212995c1fc"}}