{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:4TJWQ6FGLUKF357HQNFBXFJAQX","short_pith_number":"pith:4TJWQ6FG","canonical_record":{"source":{"id":"1805.05377","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-05-14T18:50:11Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"ac809852a5d2003c861ee2de99b0e76b3c181b4c64a9788cb6d8608d8b6ee420","abstract_canon_sha256":"d6cf57c66b840777bfe29742dbe2f4fc24c3524a846775992d326325a07d518b"},"schema_version":"1.0"},"canonical_sha256":"e4d36878a65d145df7e7834a1b952085c3d5e6aec3b957fc4fe2df2db6b443cd","source":{"kind":"arxiv","id":"1805.05377","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.05377","created_at":"2026-05-18T00:16:02Z"},{"alias_kind":"arxiv_version","alias_value":"1805.05377v1","created_at":"2026-05-18T00:16:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.05377","created_at":"2026-05-18T00:16:02Z"},{"alias_kind":"pith_short_12","alias_value":"4TJWQ6FGLUKF","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4TJWQ6FGLUKF357H","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4TJWQ6FG","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:4TJWQ6FGLUKF357HQNFBXFJAQX","target":"record","payload":{"canonical_record":{"source":{"id":"1805.05377","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-05-14T18:50:11Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"ac809852a5d2003c861ee2de99b0e76b3c181b4c64a9788cb6d8608d8b6ee420","abstract_canon_sha256":"d6cf57c66b840777bfe29742dbe2f4fc24c3524a846775992d326325a07d518b"},"schema_version":"1.0"},"canonical_sha256":"e4d36878a65d145df7e7834a1b952085c3d5e6aec3b957fc4fe2df2db6b443cd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:02.505878Z","signature_b64":"9VrG/ukF+24X23rPnr+NH+50d3CV4gbNWNXgwz9mAjqZK/5f206089u7+RMYg/0DJt4ak63gMUwMWmXY1QAqAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e4d36878a65d145df7e7834a1b952085c3d5e6aec3b957fc4fe2df2db6b443cd","last_reissued_at":"2026-05-18T00:16:02.505373Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:02.505373Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.05377","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":"2026-05-18T00:16:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UPruof0sMuok0vUw5M2O0vL6ZTXr46mwsO2oQlGgy6mMnDKfEi3KzGMsRGCyLmwC4uUrEMbDJq0jtVMSfowqCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T18:15:43.538368Z"},"content_sha256":"3b9281df138401b3ce7010cd5d5b9516bb68a2bcb8a446592e539e40c9391488","schema_version":"1.0","event_id":"sha256:3b9281df138401b3ce7010cd5d5b9516bb68a2bcb8a446592e539e40c9391488"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:4TJWQ6FGLUKF357HQNFBXFJAQX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Large-Scale QA-SRL Parsing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CL","authors_text":"Julian Michael, Luheng He, Luke Zettlemoyer, Nicholas FitzGerald","submitted_at":"2018-05-14T18:50:11Z","abstract_excerpt":"We present a new large-scale corpus of Question-Answer driven Semantic Role Labeling (QA-SRL) annotations, and the first high-quality QA-SRL parser. Our corpus, QA-SRL Bank 2.0, consists of over 250,000 question-answer pairs for over 64,000 sentences across 3 domains and was gathered with a new crowd-sourcing scheme that we show has high precision and good recall at modest cost. We also present neural models for two QA-SRL subtasks: detecting argument spans for a predicate and generating questions to label the semantic relationship. The best models achieve question accuracy of 82.6% and span-l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.05377","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":"2026-05-18T00:16:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d3w/26xzFklC7qOdX/6+6A/n3ZrQn6OqKlTBx1VyJPB6obXKZFJ2OKKC/Tnt2XSJ0E0vkgaudg8osmDp0BKEBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T18:15:43.538984Z"},"content_sha256":"3837926b95bfb3026b248be8db9348a920e6b4d5d33849f27b4fb4bc48ce24b1","schema_version":"1.0","event_id":"sha256:3837926b95bfb3026b248be8db9348a920e6b4d5d33849f27b4fb4bc48ce24b1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4TJWQ6FGLUKF357HQNFBXFJAQX/bundle.json","state_url":"https://pith.science/pith/4TJWQ6FGLUKF357HQNFBXFJAQX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4TJWQ6FGLUKF357HQNFBXFJAQX/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":"2026-05-24T18:15:43Z","links":{"resolver":"https://pith.science/pith/4TJWQ6FGLUKF357HQNFBXFJAQX","bundle":"https://pith.science/pith/4TJWQ6FGLUKF357HQNFBXFJAQX/bundle.json","state":"https://pith.science/pith/4TJWQ6FGLUKF357HQNFBXFJAQX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4TJWQ6FGLUKF357HQNFBXFJAQX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:4TJWQ6FGLUKF357HQNFBXFJAQX","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":"d6cf57c66b840777bfe29742dbe2f4fc24c3524a846775992d326325a07d518b","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-05-14T18:50:11Z","title_canon_sha256":"ac809852a5d2003c861ee2de99b0e76b3c181b4c64a9788cb6d8608d8b6ee420"},"schema_version":"1.0","source":{"id":"1805.05377","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.05377","created_at":"2026-05-18T00:16:02Z"},{"alias_kind":"arxiv_version","alias_value":"1805.05377v1","created_at":"2026-05-18T00:16:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.05377","created_at":"2026-05-18T00:16:02Z"},{"alias_kind":"pith_short_12","alias_value":"4TJWQ6FGLUKF","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4TJWQ6FGLUKF357H","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4TJWQ6FG","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:3837926b95bfb3026b248be8db9348a920e6b4d5d33849f27b4fb4bc48ce24b1","target":"graph","created_at":"2026-05-18T00:16:02Z","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 present a new large-scale corpus of Question-Answer driven Semantic Role Labeling (QA-SRL) annotations, and the first high-quality QA-SRL parser. Our corpus, QA-SRL Bank 2.0, consists of over 250,000 question-answer pairs for over 64,000 sentences across 3 domains and was gathered with a new crowd-sourcing scheme that we show has high precision and good recall at modest cost. We also present neural models for two QA-SRL subtasks: detecting argument spans for a predicate and generating questions to label the semantic relationship. The best models achieve question accuracy of 82.6% and span-l","authors_text":"Julian Michael, Luheng He, Luke Zettlemoyer, Nicholas FitzGerald","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-05-14T18:50:11Z","title":"Large-Scale QA-SRL Parsing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.05377","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":"sha256:3b9281df138401b3ce7010cd5d5b9516bb68a2bcb8a446592e539e40c9391488","target":"record","created_at":"2026-05-18T00:16:02Z","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":"d6cf57c66b840777bfe29742dbe2f4fc24c3524a846775992d326325a07d518b","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-05-14T18:50:11Z","title_canon_sha256":"ac809852a5d2003c861ee2de99b0e76b3c181b4c64a9788cb6d8608d8b6ee420"},"schema_version":"1.0","source":{"id":"1805.05377","kind":"arxiv","version":1}},"canonical_sha256":"e4d36878a65d145df7e7834a1b952085c3d5e6aec3b957fc4fe2df2db6b443cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4d36878a65d145df7e7834a1b952085c3d5e6aec3b957fc4fe2df2db6b443cd","first_computed_at":"2026-05-18T00:16:02.505373Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:02.505373Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9VrG/ukF+24X23rPnr+NH+50d3CV4gbNWNXgwz9mAjqZK/5f206089u7+RMYg/0DJt4ak63gMUwMWmXY1QAqAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:02.505878Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.05377","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3b9281df138401b3ce7010cd5d5b9516bb68a2bcb8a446592e539e40c9391488","sha256:3837926b95bfb3026b248be8db9348a920e6b4d5d33849f27b4fb4bc48ce24b1"],"state_sha256":"c73101b5298e6dc423f8d0b9ad196201047e069897a6d961b88f25576b4903ef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bBPzXuU71aESNQj6FXUHjeZRVLd3VBUR9bTHZF20q9KL1a1VjLin+ATN0njbW7HI+VDPxWeAeLunNI1JA/RjDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T18:15:43.542873Z","bundle_sha256":"a3c368f86194390f14150e0bd67dc2cbee5213cf4bea7fc4a67c41faa2faa87d"}}