{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:U2UISYRQDLYI4XISBQDCGZPSVH","short_pith_number":"pith:U2UISYRQ","canonical_record":{"source":{"id":"1808.07290","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-22T09:18:38Z","cross_cats_sorted":[],"title_canon_sha256":"ad9f7e2dc319f8a5b9f0b83c7d905d5b7388ff26bfc6d25672430cf10c9dbf40","abstract_canon_sha256":"a08d2e08e37957c2fdab44e9ffd190b78c0aa78ec9db4cdfd830a3bdd24d62a3"},"schema_version":"1.0"},"canonical_sha256":"a6a88962301af08e5d120c062365f2a9df63252e6255b599e327f4bafce1f41a","source":{"kind":"arxiv","id":"1808.07290","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07290","created_at":"2026-05-17T23:47:36Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07290v2","created_at":"2026-05-17T23:47:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07290","created_at":"2026-05-17T23:47:36Z"},{"alias_kind":"pith_short_12","alias_value":"U2UISYRQDLYI","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"U2UISYRQDLYI4XIS","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"U2UISYRQ","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:U2UISYRQDLYI4XISBQDCGZPSVH","target":"record","payload":{"canonical_record":{"source":{"id":"1808.07290","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-22T09:18:38Z","cross_cats_sorted":[],"title_canon_sha256":"ad9f7e2dc319f8a5b9f0b83c7d905d5b7388ff26bfc6d25672430cf10c9dbf40","abstract_canon_sha256":"a08d2e08e37957c2fdab44e9ffd190b78c0aa78ec9db4cdfd830a3bdd24d62a3"},"schema_version":"1.0"},"canonical_sha256":"a6a88962301af08e5d120c062365f2a9df63252e6255b599e327f4bafce1f41a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:36.139974Z","signature_b64":"ilpJWDc8xWiAyg8DFphbZHhz/PUwYFQZd0rpUYzRUiSfqSgr/OA5xcc8G10bjbrvJ9cC/d4OqhLEosn/kTVQDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6a88962301af08e5d120c062365f2a9df63252e6255b599e327f4bafce1f41a","last_reissued_at":"2026-05-17T23:47:36.139601Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:36.139601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.07290","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:47:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Su+3jfo5tTbvg/coXmqX9dNYmBUOCSCO1nx41defw5eXxVdI5WjwDFkG0rFoyIvJjO3iIEg/E+0g1kIHhQEPBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:07:01.574732Z"},"content_sha256":"a9f531ba8bcc2d6051722fef580f22f2794479c85b874a9dfa8d4be4047c2edf","schema_version":"1.0","event_id":"sha256:a9f531ba8bcc2d6051722fef580f22f2794479c85b874a9dfa8d4be4047c2edf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:U2UISYRQDLYI4XISBQDCGZPSVH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Gap of Semantic Parsing: A Survey on Automatic Math Word Problem Solvers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Bing Tian Dai, Dongxiang Zhang, Heng Tao Shen, Lei Wang, Luming Zhang","submitted_at":"2018-08-22T09:18:38Z","abstract_excerpt":"Solving mathematical word problems (MWPs) automatically is challenging, primarily due to the semantic gap between human-readable words and machine-understandable logics. Despite the long history dated back to the1960s, MWPs have regained intensive attention in the past few years with the advancement of Artificial Intelligence (AI). Solving MWPs successfully is considered as a milestone towards general AI. Many systems have claimed promising results in self-crafted and small-scale datasets. However, when applied on large and diverse datasets, none of the proposed methods in the literature achie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07290","kind":"arxiv","version":2},"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":"2026-05-17T23:47:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RGsPyiirtdNXL+OTLbl+kEv+nayPfYCYODPQosNbHLZu2wCCRZQ+qA7yY0rLZl5AcTuSjkwIoaExokPbTW1iDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:07:01.575247Z"},"content_sha256":"7fd83c7f5dd22568b4a17f0dfa5272206bcc051fb0c447ab46a180f13c26ac33","schema_version":"1.0","event_id":"sha256:7fd83c7f5dd22568b4a17f0dfa5272206bcc051fb0c447ab46a180f13c26ac33"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U2UISYRQDLYI4XISBQDCGZPSVH/bundle.json","state_url":"https://pith.science/pith/U2UISYRQDLYI4XISBQDCGZPSVH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U2UISYRQDLYI4XISBQDCGZPSVH/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":"2026-06-02T21:07:01Z","links":{"resolver":"https://pith.science/pith/U2UISYRQDLYI4XISBQDCGZPSVH","bundle":"https://pith.science/pith/U2UISYRQDLYI4XISBQDCGZPSVH/bundle.json","state":"https://pith.science/pith/U2UISYRQDLYI4XISBQDCGZPSVH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U2UISYRQDLYI4XISBQDCGZPSVH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:U2UISYRQDLYI4XISBQDCGZPSVH","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":"a08d2e08e37957c2fdab44e9ffd190b78c0aa78ec9db4cdfd830a3bdd24d62a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-22T09:18:38Z","title_canon_sha256":"ad9f7e2dc319f8a5b9f0b83c7d905d5b7388ff26bfc6d25672430cf10c9dbf40"},"schema_version":"1.0","source":{"id":"1808.07290","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07290","created_at":"2026-05-17T23:47:36Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07290v2","created_at":"2026-05-17T23:47:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07290","created_at":"2026-05-17T23:47:36Z"},{"alias_kind":"pith_short_12","alias_value":"U2UISYRQDLYI","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"U2UISYRQDLYI4XIS","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"U2UISYRQ","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:7fd83c7f5dd22568b4a17f0dfa5272206bcc051fb0c447ab46a180f13c26ac33","target":"graph","created_at":"2026-05-17T23:47:36Z","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":"Solving mathematical word problems (MWPs) automatically is challenging, primarily due to the semantic gap between human-readable words and machine-understandable logics. Despite the long history dated back to the1960s, MWPs have regained intensive attention in the past few years with the advancement of Artificial Intelligence (AI). Solving MWPs successfully is considered as a milestone towards general AI. Many systems have claimed promising results in self-crafted and small-scale datasets. However, when applied on large and diverse datasets, none of the proposed methods in the literature achie","authors_text":"Bing Tian Dai, Dongxiang Zhang, Heng Tao Shen, Lei Wang, Luming Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-22T09:18:38Z","title":"The Gap of Semantic Parsing: A Survey on Automatic Math Word Problem Solvers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07290","kind":"arxiv","version":2},"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:a9f531ba8bcc2d6051722fef580f22f2794479c85b874a9dfa8d4be4047c2edf","target":"record","created_at":"2026-05-17T23:47:36Z","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":"a08d2e08e37957c2fdab44e9ffd190b78c0aa78ec9db4cdfd830a3bdd24d62a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-22T09:18:38Z","title_canon_sha256":"ad9f7e2dc319f8a5b9f0b83c7d905d5b7388ff26bfc6d25672430cf10c9dbf40"},"schema_version":"1.0","source":{"id":"1808.07290","kind":"arxiv","version":2}},"canonical_sha256":"a6a88962301af08e5d120c062365f2a9df63252e6255b599e327f4bafce1f41a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6a88962301af08e5d120c062365f2a9df63252e6255b599e327f4bafce1f41a","first_computed_at":"2026-05-17T23:47:36.139601Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:36.139601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ilpJWDc8xWiAyg8DFphbZHhz/PUwYFQZd0rpUYzRUiSfqSgr/OA5xcc8G10bjbrvJ9cC/d4OqhLEosn/kTVQDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:36.139974Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.07290","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a9f531ba8bcc2d6051722fef580f22f2794479c85b874a9dfa8d4be4047c2edf","sha256:7fd83c7f5dd22568b4a17f0dfa5272206bcc051fb0c447ab46a180f13c26ac33"],"state_sha256":"92496e3a868ec40e73e1f63bde39d9502fd6c99b5ff9efcf02c49263fe6c7e6a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vLgsqDt8c6WPtBNcGrEW9DMDlMcvKWxC5PPSE4Erk9XR9QDDMbuRfIiN10xXKHV38dIa2IegNSKQYqmKW55LBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T21:07:01.577262Z","bundle_sha256":"f72e57dc218ac9fd6edfede5a427448603edb00c24a79586a2fe60b651bdd321"}}