{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XYJQHAZXEY55SZGIDS7WL7RHWR","short_pith_number":"pith:XYJQHAZX","canonical_record":{"source":{"id":"1809.02796","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-09-08T12:49:18Z","cross_cats_sorted":[],"title_canon_sha256":"8af4ee4f59cc826c52a1d7b475c362e94fb3a8842d32d4b73b3ae9ae800de6ee","abstract_canon_sha256":"7daa6cf26e94bcb3b50cebefc9ebd23b18d110fcc7707ea3b62b8e229ff3ee18"},"schema_version":"1.0"},"canonical_sha256":"be13038337263bd964c81cbf65fe27b440f32648fdbe87ca449c270b53a0fd78","source":{"kind":"arxiv","id":"1809.02796","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.02796","created_at":"2026-05-18T00:06:15Z"},{"alias_kind":"arxiv_version","alias_value":"1809.02796v1","created_at":"2026-05-18T00:06:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02796","created_at":"2026-05-18T00:06:15Z"},{"alias_kind":"pith_short_12","alias_value":"XYJQHAZXEY55","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"XYJQHAZXEY55SZGI","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"XYJQHAZX","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XYJQHAZXEY55SZGIDS7WL7RHWR","target":"record","payload":{"canonical_record":{"source":{"id":"1809.02796","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-09-08T12:49:18Z","cross_cats_sorted":[],"title_canon_sha256":"8af4ee4f59cc826c52a1d7b475c362e94fb3a8842d32d4b73b3ae9ae800de6ee","abstract_canon_sha256":"7daa6cf26e94bcb3b50cebefc9ebd23b18d110fcc7707ea3b62b8e229ff3ee18"},"schema_version":"1.0"},"canonical_sha256":"be13038337263bd964c81cbf65fe27b440f32648fdbe87ca449c270b53a0fd78","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:15.270715Z","signature_b64":"5rOFFfbdDL6Ns/O6+8OAiKNaOJYLFrW14PKLQ+ceyzEg+iGLtiqps8rH0llVdkViUTAkER00dxQkiuS1wkLgBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be13038337263bd964c81cbf65fe27b440f32648fdbe87ca449c270b53a0fd78","last_reissued_at":"2026-05-18T00:06:15.270078Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:15.270078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.02796","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":"2026-05-18T00:06:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CYDp+4MhT+O5CucpuVPmcPUgz+OXr4e5HCkuqjUEk73c7/ftq4dhHXYv0MB73rMZ2tw8FkTAHnxg3c5YHPgTBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:45:16.797875Z"},"content_sha256":"7de528abc5aff1917e235a193971020b051ad13214a36dc75b4cf87edfea56c9","schema_version":"1.0","event_id":"sha256:7de528abc5aff1917e235a193971020b051ad13214a36dc75b4cf87edfea56c9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XYJQHAZXEY55SZGIDS7WL7RHWR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Attentive Semantic Role Labeling with Boundary Indicator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Hai Zhao, Shexia He, Zhuosheng Zhang, Zuchao Li","submitted_at":"2018-09-08T12:49:18Z","abstract_excerpt":"The goal of semantic role labeling (SRL) is to discover the predicate-argument structure of a sentence, which plays a critical role in deep processing of natural language. This paper introduces simple yet effective auxiliary tags for dependency-based SRL to enhance a syntax-agnostic model with multi-hop self-attention. Our syntax-agnostic model achieves competitive performance with state-of-the-art models on the CoNLL-2009 benchmarks both for English and Chinese."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02796","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":"2026-05-18T00:06:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MulSUffBAD8Rw5NT5DVRh4k+dfwSBGY4Iygpm9WxXwfUKEkjS7uQi6l1rAbV2NU3NqsMbxVHQUyLrqAVldhUCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:45:16.798516Z"},"content_sha256":"a9d93c8e8bd1483d286e2ab970adcf0ff0a0c68ffd111ce902f85c42a02f2482","schema_version":"1.0","event_id":"sha256:a9d93c8e8bd1483d286e2ab970adcf0ff0a0c68ffd111ce902f85c42a02f2482"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XYJQHAZXEY55SZGIDS7WL7RHWR/bundle.json","state_url":"https://pith.science/pith/XYJQHAZXEY55SZGIDS7WL7RHWR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XYJQHAZXEY55SZGIDS7WL7RHWR/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":"2026-06-01T04:45:16Z","links":{"resolver":"https://pith.science/pith/XYJQHAZXEY55SZGIDS7WL7RHWR","bundle":"https://pith.science/pith/XYJQHAZXEY55SZGIDS7WL7RHWR/bundle.json","state":"https://pith.science/pith/XYJQHAZXEY55SZGIDS7WL7RHWR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XYJQHAZXEY55SZGIDS7WL7RHWR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XYJQHAZXEY55SZGIDS7WL7RHWR","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":"7daa6cf26e94bcb3b50cebefc9ebd23b18d110fcc7707ea3b62b8e229ff3ee18","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-09-08T12:49:18Z","title_canon_sha256":"8af4ee4f59cc826c52a1d7b475c362e94fb3a8842d32d4b73b3ae9ae800de6ee"},"schema_version":"1.0","source":{"id":"1809.02796","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.02796","created_at":"2026-05-18T00:06:15Z"},{"alias_kind":"arxiv_version","alias_value":"1809.02796v1","created_at":"2026-05-18T00:06:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02796","created_at":"2026-05-18T00:06:15Z"},{"alias_kind":"pith_short_12","alias_value":"XYJQHAZXEY55","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"XYJQHAZXEY55SZGI","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"XYJQHAZX","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:a9d93c8e8bd1483d286e2ab970adcf0ff0a0c68ffd111ce902f85c42a02f2482","target":"graph","created_at":"2026-05-18T00:06:15Z","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":"The goal of semantic role labeling (SRL) is to discover the predicate-argument structure of a sentence, which plays a critical role in deep processing of natural language. This paper introduces simple yet effective auxiliary tags for dependency-based SRL to enhance a syntax-agnostic model with multi-hop self-attention. Our syntax-agnostic model achieves competitive performance with state-of-the-art models on the CoNLL-2009 benchmarks both for English and Chinese.","authors_text":"Hai Zhao, Shexia He, Zhuosheng Zhang, Zuchao Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-09-08T12:49:18Z","title":"Attentive Semantic Role Labeling with Boundary Indicator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02796","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":"sha256:7de528abc5aff1917e235a193971020b051ad13214a36dc75b4cf87edfea56c9","target":"record","created_at":"2026-05-18T00:06:15Z","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":"7daa6cf26e94bcb3b50cebefc9ebd23b18d110fcc7707ea3b62b8e229ff3ee18","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-09-08T12:49:18Z","title_canon_sha256":"8af4ee4f59cc826c52a1d7b475c362e94fb3a8842d32d4b73b3ae9ae800de6ee"},"schema_version":"1.0","source":{"id":"1809.02796","kind":"arxiv","version":1}},"canonical_sha256":"be13038337263bd964c81cbf65fe27b440f32648fdbe87ca449c270b53a0fd78","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be13038337263bd964c81cbf65fe27b440f32648fdbe87ca449c270b53a0fd78","first_computed_at":"2026-05-18T00:06:15.270078Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:15.270078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5rOFFfbdDL6Ns/O6+8OAiKNaOJYLFrW14PKLQ+ceyzEg+iGLtiqps8rH0llVdkViUTAkER00dxQkiuS1wkLgBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:15.270715Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.02796","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7de528abc5aff1917e235a193971020b051ad13214a36dc75b4cf87edfea56c9","sha256:a9d93c8e8bd1483d286e2ab970adcf0ff0a0c68ffd111ce902f85c42a02f2482"],"state_sha256":"13061f858ac59d42d2fc250b6c4d9900b9ea89fdf6e5296561e988feeb805939"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qQ65z0WqEVl8r7sIZPJ7gdPOtrPukqZATLXhRzvD7dOoONA44hARvgT8t/AOnpVEsgKop4t4nfRHw8Z26nqCDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T04:45:16.800825Z","bundle_sha256":"ed3ee190856e226e5ce95e613ca2040f28f0746945c2d9d2195ab58c9c0c2de7"}}