{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:OSC2NCYTYKXLRPQY7HHIRINPZY","short_pith_number":"pith:OSC2NCYT","canonical_record":{"source":{"id":"2011.02687","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-11-05T07:10:08Z","cross_cats_sorted":[],"title_canon_sha256":"966e5d8d8dfbde9edbb791794ac9e1cf48c8e5b92bcbeda77b0229e9bed3fece","abstract_canon_sha256":"194c278c6b41397301f2f77ff8e34c77f388d38952561465b061b8d5e03b770e"},"schema_version":"1.0"},"canonical_sha256":"7485a68b13c2aeb8be18f9ce88a1afce287d03bad210ea36cab96d1108282a4d","source":{"kind":"arxiv","id":"2011.02687","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.02687","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"arxiv_version","alias_value":"2011.02687v1","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.02687","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"pith_short_12","alias_value":"OSC2NCYTYKXL","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"pith_short_16","alias_value":"OSC2NCYTYKXLRPQY","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"pith_short_8","alias_value":"OSC2NCYT","created_at":"2026-07-05T01:49:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:OSC2NCYTYKXLRPQY7HHIRINPZY","target":"record","payload":{"canonical_record":{"source":{"id":"2011.02687","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-11-05T07:10:08Z","cross_cats_sorted":[],"title_canon_sha256":"966e5d8d8dfbde9edbb791794ac9e1cf48c8e5b92bcbeda77b0229e9bed3fece","abstract_canon_sha256":"194c278c6b41397301f2f77ff8e34c77f388d38952561465b061b8d5e03b770e"},"schema_version":"1.0"},"canonical_sha256":"7485a68b13c2aeb8be18f9ce88a1afce287d03bad210ea36cab96d1108282a4d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:49:24.226060Z","signature_b64":"38A68zm0i3U1APju95qqCg6ItP15XoaYvJQh/D2E2Wf4kDbRhHsexwLi4dG7aTQT3+h+vUtXtZKPuEO7zIzUCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7485a68b13c2aeb8be18f9ce88a1afce287d03bad210ea36cab96d1108282a4d","last_reissued_at":"2026-07-05T01:49:24.225646Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:49:24.225646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2011.02687","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":"2026-07-05T01:49:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mP1+WO4ITJz15AXi1908LDpWgr3XXvrvaRcZdUwbo24hcSrgF3lx2L5QvRy/M4r4JoWGdzni2LPVOSGi+zh4Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T13:32:11.164405Z"},"content_sha256":"bafb296cdabd5ff016d0e1350af769e5353e2cd351802aa4f091865da2f1ef58","schema_version":"1.0","event_id":"sha256:bafb296cdabd5ff016d0e1350af769e5353e2cd351802aa4f091865da2f1ef58"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:OSC2NCYTYKXLRPQY7HHIRINPZY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Context-Aware Answer Extraction in Question Answering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Alice Oh, Ji-Hoon Kim, Jung-Woo Ha, Yeon Seonwoo","submitted_at":"2020-11-05T07:10:08Z","abstract_excerpt":"Extractive QA models have shown very promising performance in predicting the correct answer to a question for a given passage. However, they sometimes result in predicting the correct answer text but in a context irrelevant to the given question. This discrepancy becomes especially important as the number of occurrences of the answer text in a passage increases. To resolve this issue, we propose \\textbf{BLANC} (\\textbf{BL}ock \\textbf{A}ttentio\\textbf{N} for \\textbf{C}ontext prediction) based on two main ideas: context prediction as an auxiliary task in multi-task learning manner, and a block a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.02687","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2011.02687/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:49:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1OdcqrMrD339kkvQHU1+RVvba7Hot541OQLmwhom0Bh7BmFb3nMGsOlxsFpkKiYeYfr777USf/v8fQFPzKKXDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T13:32:11.165412Z"},"content_sha256":"02fffcc967dd60b6dad97d7772dee35edbca9b8eec2d9c6ec465f5809e1b6f07","schema_version":"1.0","event_id":"sha256:02fffcc967dd60b6dad97d7772dee35edbca9b8eec2d9c6ec465f5809e1b6f07"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OSC2NCYTYKXLRPQY7HHIRINPZY/bundle.json","state_url":"https://pith.science/pith/OSC2NCYTYKXLRPQY7HHIRINPZY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OSC2NCYTYKXLRPQY7HHIRINPZY/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":"2026-08-14T13:32:11Z","links":{"resolver":"https://pith.science/pith/OSC2NCYTYKXLRPQY7HHIRINPZY","bundle":"https://pith.science/pith/OSC2NCYTYKXLRPQY7HHIRINPZY/bundle.json","state":"https://pith.science/pith/OSC2NCYTYKXLRPQY7HHIRINPZY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OSC2NCYTYKXLRPQY7HHIRINPZY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:OSC2NCYTYKXLRPQY7HHIRINPZY","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":"194c278c6b41397301f2f77ff8e34c77f388d38952561465b061b8d5e03b770e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-11-05T07:10:08Z","title_canon_sha256":"966e5d8d8dfbde9edbb791794ac9e1cf48c8e5b92bcbeda77b0229e9bed3fece"},"schema_version":"1.0","source":{"id":"2011.02687","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.02687","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"arxiv_version","alias_value":"2011.02687v1","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.02687","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"pith_short_12","alias_value":"OSC2NCYTYKXL","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"pith_short_16","alias_value":"OSC2NCYTYKXLRPQY","created_at":"2026-07-05T01:49:24Z"},{"alias_kind":"pith_short_8","alias_value":"OSC2NCYT","created_at":"2026-07-05T01:49:24Z"}],"graph_snapshots":[{"event_id":"sha256:02fffcc967dd60b6dad97d7772dee35edbca9b8eec2d9c6ec465f5809e1b6f07","target":"graph","created_at":"2026-07-05T01:49:24Z","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/2011.02687/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Extractive QA models have shown very promising performance in predicting the correct answer to a question for a given passage. However, they sometimes result in predicting the correct answer text but in a context irrelevant to the given question. This discrepancy becomes especially important as the number of occurrences of the answer text in a passage increases. To resolve this issue, we propose \\textbf{BLANC} (\\textbf{BL}ock \\textbf{A}ttentio\\textbf{N} for \\textbf{C}ontext prediction) based on two main ideas: context prediction as an auxiliary task in multi-task learning manner, and a block a","authors_text":"Alice Oh, Ji-Hoon Kim, Jung-Woo Ha, Yeon Seonwoo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-11-05T07:10:08Z","title":"Context-Aware Answer Extraction in Question Answering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.02687","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:bafb296cdabd5ff016d0e1350af769e5353e2cd351802aa4f091865da2f1ef58","target":"record","created_at":"2026-07-05T01:49:24Z","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":"194c278c6b41397301f2f77ff8e34c77f388d38952561465b061b8d5e03b770e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-11-05T07:10:08Z","title_canon_sha256":"966e5d8d8dfbde9edbb791794ac9e1cf48c8e5b92bcbeda77b0229e9bed3fece"},"schema_version":"1.0","source":{"id":"2011.02687","kind":"arxiv","version":1}},"canonical_sha256":"7485a68b13c2aeb8be18f9ce88a1afce287d03bad210ea36cab96d1108282a4d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7485a68b13c2aeb8be18f9ce88a1afce287d03bad210ea36cab96d1108282a4d","first_computed_at":"2026-07-05T01:49:24.225646Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:49:24.225646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"38A68zm0i3U1APju95qqCg6ItP15XoaYvJQh/D2E2Wf4kDbRhHsexwLi4dG7aTQT3+h+vUtXtZKPuEO7zIzUCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:49:24.226060Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.02687","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bafb296cdabd5ff016d0e1350af769e5353e2cd351802aa4f091865da2f1ef58","sha256:02fffcc967dd60b6dad97d7772dee35edbca9b8eec2d9c6ec465f5809e1b6f07"],"state_sha256":"dfd3f1823cea77d2baadcad2ab82640fe4fde063e78173ad5cfdd70ad073d269"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FvWv+oNql4/V3M7Ifjq1nR+x26mBcEA19vN+vG7vVKo1eHP7kyIKFGcSz/NsoTACesSLp+6y9KUGlxDWRgUXCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T13:32:11.170810Z","bundle_sha256":"15780a4f8a6de7fa51a4a3084a67b48511011988955db92cfded79341c4217c2"}}