{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:TAMHDUWNKDFD4RNQGDATGZ64M2","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":"44de1e92ec79329fb258b42faa33e1b764f620abcfb8d3b9c86ad51863a6d2aa","cross_cats_sorted":["cs.AI","cs.CL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2020-06-17T01:32:48Z","title_canon_sha256":"846570bf63032768870990dc8a99c99854e31bcf3dd34b5f4e4d0678c3f274cb"},"schema_version":"1.0","source":{"id":"2006.09595","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.09595","created_at":"2026-07-05T01:11:03Z"},{"alias_kind":"arxiv_version","alias_value":"2006.09595v1","created_at":"2026-07-05T01:11:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.09595","created_at":"2026-07-05T01:11:03Z"},{"alias_kind":"pith_short_12","alias_value":"TAMHDUWNKDFD","created_at":"2026-07-05T01:11:03Z"},{"alias_kind":"pith_short_16","alias_value":"TAMHDUWNKDFD4RNQ","created_at":"2026-07-05T01:11:03Z"},{"alias_kind":"pith_short_8","alias_value":"TAMHDUWN","created_at":"2026-07-05T01:11:03Z"}],"graph_snapshots":[{"event_id":"sha256:3fa4e5913b71e418978dd7ee167155db3f9c8dd3e67900a138b412c40de1cce5","target":"graph","created_at":"2026-07-05T01:11:03Z","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/2006.09595/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The COVID-19 global pandemic has resulted in international efforts to understand, track, and mitigate the disease, yielding a significant corpus of COVID-19 and SARS-CoV-2-related publications across scientific disciplines. As of May 2020, 128,000 coronavirus-related publications have been collected through the COVID-19 Open Research Dataset Challenge. Here we present CO-Search, a retriever-ranker semantic search engine designed to handle complex queries over the COVID-19 literature, potentially aiding overburdened health workers in finding scientific answers during a time of crisis. The retri","authors_text":"Andre Esteva, Anuprit Kale, Dragomir Radev, Kazuma Hashimoto, Richard Socher, Romain Paulus, Wenpeng Yin","cross_cats":["cs.AI","cs.CL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2020-06-17T01:32:48Z","title":"CO-Search: COVID-19 Information Retrieval with Semantic Search, Question Answering, and Abstractive Summarization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.09595","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:e36d29135d47e6b0bc2c720bc41b4d3cdce13bd61a371a25651ab805d9eb21e3","target":"record","created_at":"2026-07-05T01:11:03Z","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":"44de1e92ec79329fb258b42faa33e1b764f620abcfb8d3b9c86ad51863a6d2aa","cross_cats_sorted":["cs.AI","cs.CL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2020-06-17T01:32:48Z","title_canon_sha256":"846570bf63032768870990dc8a99c99854e31bcf3dd34b5f4e4d0678c3f274cb"},"schema_version":"1.0","source":{"id":"2006.09595","kind":"arxiv","version":1}},"canonical_sha256":"981871d2cd50ca3e45b030c13367dc66bf2156787c586c8080b42e21c56438c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"981871d2cd50ca3e45b030c13367dc66bf2156787c586c8080b42e21c56438c2","first_computed_at":"2026-07-05T01:11:03.354406Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:11:03.354406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yTVVNM4a0lWQyg+AQ6ZyQoSsB2e1bnLxevH+gI0/xW4T/kt/aeQRdvuTlT2c+3OVHaUEycbtxw5KnCsPYJXxBA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:11:03.354813Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.09595","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e36d29135d47e6b0bc2c720bc41b4d3cdce13bd61a371a25651ab805d9eb21e3","sha256:3fa4e5913b71e418978dd7ee167155db3f9c8dd3e67900a138b412c40de1cce5"],"state_sha256":"a137e39674eaf8a4b27428e9803d3fc651e6b09088c93290785890e4a7e7c952"}