{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:KB4S7VXD3HYHGHJEA23DVNLA4Q","short_pith_number":"pith:KB4S7VXD","canonical_record":{"source":{"id":"1907.01642","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-06-28T08:27:53Z","cross_cats_sorted":["cs.CL","cs.DL"],"title_canon_sha256":"d19321015cf24057789eece34aa44b91dbf941cdfa6482663e032390aef7a4db","abstract_canon_sha256":"dc66809d71b93cab7c3398415ebac3652975eed79da949616deaed515c072a39"},"schema_version":"1.0"},"canonical_sha256":"50792fd6e3d9f0731d2406b63ab560e413dd66eb7c3d1553312000493eabc938","source":{"kind":"arxiv","id":"1907.01642","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.01642","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"1907.01642v1","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01642","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"KB4S7VXD3HYH","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"KB4S7VXD3HYHGHJE","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"KB4S7VXD","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:KB4S7VXD3HYHGHJEA23DVNLA4Q","target":"record","payload":{"canonical_record":{"source":{"id":"1907.01642","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-06-28T08:27:53Z","cross_cats_sorted":["cs.CL","cs.DL"],"title_canon_sha256":"d19321015cf24057789eece34aa44b91dbf941cdfa6482663e032390aef7a4db","abstract_canon_sha256":"dc66809d71b93cab7c3398415ebac3652975eed79da949616deaed515c072a39"},"schema_version":"1.0"},"canonical_sha256":"50792fd6e3d9f0731d2406b63ab560e413dd66eb7c3d1553312000493eabc938","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:35.648550Z","signature_b64":"0q80pqEPuYMbu9emK8nXoVwkc18DsCoQ08TRR4UKvp86kTirXMoVdg6jOqBqvjqYKeVyFEtyMVatF0yucis1BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50792fd6e3d9f0731d2406b63ab560e413dd66eb7c3d1553312000493eabc938","last_reissued_at":"2026-05-17T23:41:35.647942Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:35.647942Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.01642","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":"2026-05-17T23:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xjU503xUQbawjkYG4DKQHdrLpsGdk3MxAkJ6L1JC+mEI76O2Xn8lUWO+63MR68Jdp2pelGFZ9vWs55l6EtK9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T05:11:54.929952Z"},"content_sha256":"11bb725e4dd82eaabdc862b4a68339fcf16ee6edd7180a18d299ea80a7d59a31","schema_version":"1.0","event_id":"sha256:11bb725e4dd82eaabdc862b4a68339fcf16ee6edd7180a18d299ea80a7d59a31"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:KB4S7VXD3HYHGHJEA23DVNLA4Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Introducing MathQA -- A Math-Aware Question Answering System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CL","cs.DL"],"primary_cat":"cs.IR","authors_text":"Bela Gipp, Felix Hamborg, Kaushal Dudhat, Moritz Schubotz, Philipp Scharpf, Yash Nagar","submitted_at":"2019-06-28T08:27:53Z","abstract_excerpt":"We present an open source math-aware Question Answering System based on Ask Platypus. Our system returns as a single mathematical formula for a natural language question in English or Hindi. This formulae originate from the knowledge-base Wikidata. We translate these formulae to computable data by integrating the calculation engine sympy into our system. This way, users can enter numeric values for the variables occurring in the formula. Moreover, the system loads numeric values for constants occurring in the formula from Wikidata. In a user study, our system outperformed a commercial computat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01642","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":"2026-05-17T23:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t/akcSE6TAFfd7yw240pp66x613fNYNgOwquoHWXDg0HaYkEtP92paweEC0y1JTdt02YqZE/3BLf94I642dAAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T05:11:54.930297Z"},"content_sha256":"b27fbe8787379fdb44146df0d3e25ee0ad4751d7163d9e97caa8eb370cec6025","schema_version":"1.0","event_id":"sha256:b27fbe8787379fdb44146df0d3e25ee0ad4751d7163d9e97caa8eb370cec6025"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KB4S7VXD3HYHGHJEA23DVNLA4Q/bundle.json","state_url":"https://pith.science/pith/KB4S7VXD3HYHGHJEA23DVNLA4Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KB4S7VXD3HYHGHJEA23DVNLA4Q/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":"2026-06-02T05:11:54Z","links":{"resolver":"https://pith.science/pith/KB4S7VXD3HYHGHJEA23DVNLA4Q","bundle":"https://pith.science/pith/KB4S7VXD3HYHGHJEA23DVNLA4Q/bundle.json","state":"https://pith.science/pith/KB4S7VXD3HYHGHJEA23DVNLA4Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KB4S7VXD3HYHGHJEA23DVNLA4Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:KB4S7VXD3HYHGHJEA23DVNLA4Q","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":"dc66809d71b93cab7c3398415ebac3652975eed79da949616deaed515c072a39","cross_cats_sorted":["cs.CL","cs.DL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-06-28T08:27:53Z","title_canon_sha256":"d19321015cf24057789eece34aa44b91dbf941cdfa6482663e032390aef7a4db"},"schema_version":"1.0","source":{"id":"1907.01642","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.01642","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"1907.01642v1","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01642","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"KB4S7VXD3HYH","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"KB4S7VXD3HYHGHJE","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"KB4S7VXD","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:b27fbe8787379fdb44146df0d3e25ee0ad4751d7163d9e97caa8eb370cec6025","target":"graph","created_at":"2026-05-17T23:41:35Z","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 an open source math-aware Question Answering System based on Ask Platypus. Our system returns as a single mathematical formula for a natural language question in English or Hindi. This formulae originate from the knowledge-base Wikidata. We translate these formulae to computable data by integrating the calculation engine sympy into our system. This way, users can enter numeric values for the variables occurring in the formula. Moreover, the system loads numeric values for constants occurring in the formula from Wikidata. In a user study, our system outperformed a commercial computat","authors_text":"Bela Gipp, Felix Hamborg, Kaushal Dudhat, Moritz Schubotz, Philipp Scharpf, Yash Nagar","cross_cats":["cs.CL","cs.DL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-06-28T08:27:53Z","title":"Introducing MathQA -- A Math-Aware Question Answering System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01642","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":"sha256:11bb725e4dd82eaabdc862b4a68339fcf16ee6edd7180a18d299ea80a7d59a31","target":"record","created_at":"2026-05-17T23:41:35Z","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":"dc66809d71b93cab7c3398415ebac3652975eed79da949616deaed515c072a39","cross_cats_sorted":["cs.CL","cs.DL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-06-28T08:27:53Z","title_canon_sha256":"d19321015cf24057789eece34aa44b91dbf941cdfa6482663e032390aef7a4db"},"schema_version":"1.0","source":{"id":"1907.01642","kind":"arxiv","version":1}},"canonical_sha256":"50792fd6e3d9f0731d2406b63ab560e413dd66eb7c3d1553312000493eabc938","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50792fd6e3d9f0731d2406b63ab560e413dd66eb7c3d1553312000493eabc938","first_computed_at":"2026-05-17T23:41:35.647942Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:35.647942Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0q80pqEPuYMbu9emK8nXoVwkc18DsCoQ08TRR4UKvp86kTirXMoVdg6jOqBqvjqYKeVyFEtyMVatF0yucis1BA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:35.648550Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.01642","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11bb725e4dd82eaabdc862b4a68339fcf16ee6edd7180a18d299ea80a7d59a31","sha256:b27fbe8787379fdb44146df0d3e25ee0ad4751d7163d9e97caa8eb370cec6025"],"state_sha256":"6bae8f6958cce94a26ccd50eaaa90a2877484ed9f2ba164790e605abb2bacbba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YjPso9JOR0YjSd3PAIw4M3ctGMh6Sn8aCDZ/tpOgETVrMssPOSwAm7yi09zWHt5mlXtF2EkrHhGnKIODOmkRDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T05:11:54.932250Z","bundle_sha256":"048948c969da12cd83627df7e53674e78084ba029c0057c91c8d34a61d35fc84"}}