{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:W5U7Z6CLVYLLXNGGF7XVYBD7PQ","short_pith_number":"pith:W5U7Z6CL","canonical_record":{"source":{"id":"1804.04526","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-04-12T14:12:48Z","cross_cats_sorted":["cs.DB"],"title_canon_sha256":"a7f9935de944fb01158511953d1a1c03e1a0dc945da640c4fbbadb30e13b3ee5","abstract_canon_sha256":"dcc418c1cd867e1178c9dccf9d73a01ca185977fa922771bc81a08c6eaa8a8be"},"schema_version":"1.0"},"canonical_sha256":"b769fcf84bae16bbb4c62fef5c047f7c0d73b826fcc315fd4f10693e03b95b4b","source":{"kind":"arxiv","id":"1804.04526","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.04526","created_at":"2026-05-18T00:18:37Z"},{"alias_kind":"arxiv_version","alias_value":"1804.04526v1","created_at":"2026-05-18T00:18:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.04526","created_at":"2026-05-18T00:18:37Z"},{"alias_kind":"pith_short_12","alias_value":"W5U7Z6CLVYLL","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"W5U7Z6CLVYLLXNGG","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"W5U7Z6CL","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:W5U7Z6CLVYLLXNGGF7XVYBD7PQ","target":"record","payload":{"canonical_record":{"source":{"id":"1804.04526","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-04-12T14:12:48Z","cross_cats_sorted":["cs.DB"],"title_canon_sha256":"a7f9935de944fb01158511953d1a1c03e1a0dc945da640c4fbbadb30e13b3ee5","abstract_canon_sha256":"dcc418c1cd867e1178c9dccf9d73a01ca185977fa922771bc81a08c6eaa8a8be"},"schema_version":"1.0"},"canonical_sha256":"b769fcf84bae16bbb4c62fef5c047f7c0d73b826fcc315fd4f10693e03b95b4b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:18:37.325331Z","signature_b64":"W6dFyoCnKV/0MXU9HWMa13O3fNBtaeOEqFT//jpMwMhuuCdcRxFpYNmgr4OHktlBB/mDdXtsqNLLY2GwPljnBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b769fcf84bae16bbb4c62fef5c047f7c0d73b826fcc315fd4f10693e03b95b4b","last_reissued_at":"2026-05-18T00:18:37.324883Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:18:37.324883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.04526","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":"2026-05-18T00:18:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kiGQ7lstgnSmHpsijO06mM9GAIAs2s1lQkty+i+HNmoymq/P69q6GGEKm/98KJug3L7ki8Fk9tQ8S2moset7Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:49:01.147527Z"},"content_sha256":"98027e779618755a038711aefa50af0d4d92e7f84013566c047bf2a5a449b7f9","schema_version":"1.0","event_id":"sha256:98027e779618755a038711aefa50af0d4d92e7f84013566c047bf2a5a449b7f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:W5U7Z6CLVYLLXNGGF7XVYBD7PQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"EventKG: A Multilingual Event-Centric Temporal Knowledge Graph","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DB"],"primary_cat":"cs.CL","authors_text":"Elena Demidova, Simon Gottschalk","submitted_at":"2018-04-12T14:12:48Z","abstract_excerpt":"One of the key requirements to facilitate semantic analytics of information regarding contemporary and historical events on the Web, in the news and in social media is the availability of reference knowledge repositories containing comprehensive representations of events and temporal relations. Existing knowledge graphs, with popular examples including DBpedia, YAGO and Wikidata, focus mostly on entity-centric information and are insufficient in terms of their coverage and completeness with respect to events and temporal relations. EventKG presented in this paper is a multilingual event-centri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.04526","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":""},"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":"2026-05-18T00:18:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eH+XiuyK1jfngJnCTWnp/pkEaE6ovswwgFhvLmEI/sjDd/Rvaj7ofh2GH3jVqcxtCvAWiPnYUYFe+9ECFa8VBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:49:01.147925Z"},"content_sha256":"177d981b0584fe53b44470847ac41722f7eb57438dcc4af5d228e9abf50823d8","schema_version":"1.0","event_id":"sha256:177d981b0584fe53b44470847ac41722f7eb57438dcc4af5d228e9abf50823d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W5U7Z6CLVYLLXNGGF7XVYBD7PQ/bundle.json","state_url":"https://pith.science/pith/W5U7Z6CLVYLLXNGGF7XVYBD7PQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W5U7Z6CLVYLLXNGGF7XVYBD7PQ/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":"2026-05-28T21:49:01Z","links":{"resolver":"https://pith.science/pith/W5U7Z6CLVYLLXNGGF7XVYBD7PQ","bundle":"https://pith.science/pith/W5U7Z6CLVYLLXNGGF7XVYBD7PQ/bundle.json","state":"https://pith.science/pith/W5U7Z6CLVYLLXNGGF7XVYBD7PQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W5U7Z6CLVYLLXNGGF7XVYBD7PQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:W5U7Z6CLVYLLXNGGF7XVYBD7PQ","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":"dcc418c1cd867e1178c9dccf9d73a01ca185977fa922771bc81a08c6eaa8a8be","cross_cats_sorted":["cs.DB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-04-12T14:12:48Z","title_canon_sha256":"a7f9935de944fb01158511953d1a1c03e1a0dc945da640c4fbbadb30e13b3ee5"},"schema_version":"1.0","source":{"id":"1804.04526","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.04526","created_at":"2026-05-18T00:18:37Z"},{"alias_kind":"arxiv_version","alias_value":"1804.04526v1","created_at":"2026-05-18T00:18:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.04526","created_at":"2026-05-18T00:18:37Z"},{"alias_kind":"pith_short_12","alias_value":"W5U7Z6CLVYLL","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"W5U7Z6CLVYLLXNGG","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"W5U7Z6CL","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:177d981b0584fe53b44470847ac41722f7eb57438dcc4af5d228e9abf50823d8","target":"graph","created_at":"2026-05-18T00:18:37Z","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":"One of the key requirements to facilitate semantic analytics of information regarding contemporary and historical events on the Web, in the news and in social media is the availability of reference knowledge repositories containing comprehensive representations of events and temporal relations. Existing knowledge graphs, with popular examples including DBpedia, YAGO and Wikidata, focus mostly on entity-centric information and are insufficient in terms of their coverage and completeness with respect to events and temporal relations. EventKG presented in this paper is a multilingual event-centri","authors_text":"Elena Demidova, Simon Gottschalk","cross_cats":["cs.DB"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-04-12T14:12:48Z","title":"EventKG: A Multilingual Event-Centric Temporal Knowledge Graph"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.04526","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":"sha256:98027e779618755a038711aefa50af0d4d92e7f84013566c047bf2a5a449b7f9","target":"record","created_at":"2026-05-18T00:18:37Z","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":"dcc418c1cd867e1178c9dccf9d73a01ca185977fa922771bc81a08c6eaa8a8be","cross_cats_sorted":["cs.DB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-04-12T14:12:48Z","title_canon_sha256":"a7f9935de944fb01158511953d1a1c03e1a0dc945da640c4fbbadb30e13b3ee5"},"schema_version":"1.0","source":{"id":"1804.04526","kind":"arxiv","version":1}},"canonical_sha256":"b769fcf84bae16bbb4c62fef5c047f7c0d73b826fcc315fd4f10693e03b95b4b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b769fcf84bae16bbb4c62fef5c047f7c0d73b826fcc315fd4f10693e03b95b4b","first_computed_at":"2026-05-18T00:18:37.324883Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:37.324883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W6dFyoCnKV/0MXU9HWMa13O3fNBtaeOEqFT//jpMwMhuuCdcRxFpYNmgr4OHktlBB/mDdXtsqNLLY2GwPljnBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:37.325331Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.04526","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:98027e779618755a038711aefa50af0d4d92e7f84013566c047bf2a5a449b7f9","sha256:177d981b0584fe53b44470847ac41722f7eb57438dcc4af5d228e9abf50823d8"],"state_sha256":"2a1736cbff6469267ba7ea054e1154577a8b7340b3012e84fdb3838b428a2abf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZJzIu3OALI8XYzLOdRGRPhvdprFTOn/+GMQFcxRK7WgQdaCwFWL+LDJTYs/Nvk2YUayyr1gl7wJrIUTfFUuLAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T21:49:01.151106Z","bundle_sha256":"4bd0cb6531b8f32ab65c22cba9ba1ed757da64242053dbbfbb18722bed5ee83b"}}