{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:VUUPFN7ZNMYKEXFTV7OR2PGOR6","short_pith_number":"pith:VUUPFN7Z","schema_version":"1.0","canonical_sha256":"ad28f2b7f96b30a25cb3afdd1d3cce8f9a94af0cb0a57ee01e339d9d9c7cb856","source":{"kind":"arxiv","id":"2112.15280","version":2},"attestation_state":"computed","paper":{"title":"What is Event Knowledge Graph: A Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.CL"],"primary_cat":"cs.LG","authors_text":"Fujun Zhang, Jiafeng Guo, Long Bai, Saiping Guan, Xiaolong Jin, Xueqi Cheng, Yutao Zeng, Zixuan Li","submitted_at":"2021-12-31T03:42:55Z","abstract_excerpt":"Besides entity-centric knowledge, usually organized as Knowledge Graph (KG), events are also an essential kind of knowledge in the world, which trigger the spring up of event-centric knowledge representation form like Event KG (EKG). It plays an increasingly important role in many downstream applications, such as search, question-answering, recommendation, financial quantitative investments, and text generation. This paper provides a comprehensive survey of EKG from history, ontology, instance, and application views. Specifically, to characterize EKG thoroughly, we focus on its history, defini"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2112.15280","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2021-12-31T03:42:55Z","cross_cats_sorted":["cs.AI","cs.CL"],"title_canon_sha256":"27a0fc40e0c460eda6143878be995e6e09eb9954ec88ea842be98bdd1d84e3e0","abstract_canon_sha256":"58919a2c09d3fe32efbb06c8c1f095b7bcbcebe0a3e3eab8f03d3e10e6c87eec"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:31:11.904492Z","signature_b64":"/is6wA6X7B26TWdAzevMD/fNznZIk9DXR0NBRTzi39Hzrhz3mbzShbkLlAIrCtbtNwEUxewv7p5saw8DmqITCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad28f2b7f96b30a25cb3afdd1d3cce8f9a94af0cb0a57ee01e339d9d9c7cb856","last_reissued_at":"2026-07-05T04:31:11.903972Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:31:11.903972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"What is Event Knowledge Graph: A Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.CL"],"primary_cat":"cs.LG","authors_text":"Fujun Zhang, Jiafeng Guo, Long Bai, Saiping Guan, Xiaolong Jin, Xueqi Cheng, Yutao Zeng, Zixuan Li","submitted_at":"2021-12-31T03:42:55Z","abstract_excerpt":"Besides entity-centric knowledge, usually organized as Knowledge Graph (KG), events are also an essential kind of knowledge in the world, which trigger the spring up of event-centric knowledge representation form like Event KG (EKG). It plays an increasingly important role in many downstream applications, such as search, question-answering, recommendation, financial quantitative investments, and text generation. This paper provides a comprehensive survey of EKG from history, ontology, instance, and application views. Specifically, to characterize EKG thoroughly, we focus on its history, defini"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.15280","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/2112.15280/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2112.15280","created_at":"2026-07-05T04:31:11.904037+00:00"},{"alias_kind":"arxiv_version","alias_value":"2112.15280v2","created_at":"2026-07-05T04:31:11.904037+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.15280","created_at":"2026-07-05T04:31:11.904037+00:00"},{"alias_kind":"pith_short_12","alias_value":"VUUPFN7ZNMYK","created_at":"2026-07-05T04:31:11.904037+00:00"},{"alias_kind":"pith_short_16","alias_value":"VUUPFN7ZNMYKEXFT","created_at":"2026-07-05T04:31:11.904037+00:00"},{"alias_kind":"pith_short_8","alias_value":"VUUPFN7Z","created_at":"2026-07-05T04:31:11.904037+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VUUPFN7ZNMYKEXFTV7OR2PGOR6","json":"https://pith.science/pith/VUUPFN7ZNMYKEXFTV7OR2PGOR6.json","graph_json":"https://pith.science/api/pith-number/VUUPFN7ZNMYKEXFTV7OR2PGOR6/graph.json","events_json":"https://pith.science/api/pith-number/VUUPFN7ZNMYKEXFTV7OR2PGOR6/events.json","paper":"https://pith.science/paper/VUUPFN7Z"},"agent_actions":{"view_html":"https://pith.science/pith/VUUPFN7ZNMYKEXFTV7OR2PGOR6","download_json":"https://pith.science/pith/VUUPFN7ZNMYKEXFTV7OR2PGOR6.json","view_paper":"https://pith.science/paper/VUUPFN7Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2112.15280&json=true","fetch_graph":"https://pith.science/api/pith-number/VUUPFN7ZNMYKEXFTV7OR2PGOR6/graph.json","fetch_events":"https://pith.science/api/pith-number/VUUPFN7ZNMYKEXFTV7OR2PGOR6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VUUPFN7ZNMYKEXFTV7OR2PGOR6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VUUPFN7ZNMYKEXFTV7OR2PGOR6/action/storage_attestation","attest_author":"https://pith.science/pith/VUUPFN7ZNMYKEXFTV7OR2PGOR6/action/author_attestation","sign_citation":"https://pith.science/pith/VUUPFN7ZNMYKEXFTV7OR2PGOR6/action/citation_signature","submit_replication":"https://pith.science/pith/VUUPFN7ZNMYKEXFTV7OR2PGOR6/action/replication_record"}},"created_at":"2026-07-05T04:31:11.904037+00:00","updated_at":"2026-07-05T04:31:11.904037+00:00"}