{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YENJHUHURBVGQQDLQSMKFLELG5","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":"b2b9e12fce7685080d078a8a1d9a4c742f6d80812adf2eae22f794771566258a","cross_cats_sorted":["cs.CY","cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-01-29T22:10:16Z","title_canon_sha256":"f88fe877dad27dd4183643594720b22be50609b11cba9342e7656ba835293724"},"schema_version":"1.0","source":{"id":"1801.09781","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.09781","created_at":"2026-05-18T00:24:53Z"},{"alias_kind":"arxiv_version","alias_value":"1801.09781v1","created_at":"2026-05-18T00:24:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.09781","created_at":"2026-05-18T00:24:53Z"},{"alias_kind":"pith_short_12","alias_value":"YENJHUHURBVG","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YENJHUHURBVGQQDL","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YENJHUHU","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:9dca8eb3ac4b421f21983f8e4d686aa6e13ed4f37580c67c067a05d48cb371e7","target":"graph","created_at":"2026-05-18T00:24:53Z","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"},"paper":{"abstract_excerpt":"We introduce a system for automatically generating warnings of imminent or current cyber-threats. Our system leverages the communication of malicious actors on the darkweb, as well as activity of cyber security experts on social media platforms like Twitter. In a time period between September, 2016 and January, 2017, our method generated 661 alerts of which about 84% were relevant to current or imminent cyber-threats. In the paper, we first illustrate the rationale and workflow of our system, then we measure its performance. Our analysis is enriched by two case studies: the first shows how the","authors_text":"Alessandro Bessi, Anna Sapienza, Emilio Ferrara, Kristina Lerman, Paulo Shakarian, Saranya Damodaran","cross_cats":["cs.CY","cs.SI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-01-29T22:10:16Z","title":"Early Warnings of Cyber Threats in Online Discussions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.09781","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":"sha256:073bc61c6b500a6a0dbcc0a033769fdadb767c8cabbc6eedf1158c614b131d84","target":"record","created_at":"2026-05-18T00:24:53Z","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":"b2b9e12fce7685080d078a8a1d9a4c742f6d80812adf2eae22f794771566258a","cross_cats_sorted":["cs.CY","cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-01-29T22:10:16Z","title_canon_sha256":"f88fe877dad27dd4183643594720b22be50609b11cba9342e7656ba835293724"},"schema_version":"1.0","source":{"id":"1801.09781","kind":"arxiv","version":1}},"canonical_sha256":"c11a93d0f4886a68406b8498a2ac8b374eff1d334141dc3a29922bd35de1f71e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c11a93d0f4886a68406b8498a2ac8b374eff1d334141dc3a29922bd35de1f71e","first_computed_at":"2026-05-18T00:24:53.813836Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:53.813836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l4fldUmYWV2h+dglpOEsWmHlIWW9O5PlKsTBVio6DN0aPhMuvEmxnWJR06n3RLWKR6+YIxkXsUY8eJgwCmN2BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:53.814497Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.09781","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:073bc61c6b500a6a0dbcc0a033769fdadb767c8cabbc6eedf1158c614b131d84","sha256:9dca8eb3ac4b421f21983f8e4d686aa6e13ed4f37580c67c067a05d48cb371e7"],"state_sha256":"6529c965ffdeaa4064f3bbc473cc95cbca9c30d95a8357071065eac348c6cd3a"}