{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:J4LIY547MSBD5N762C2DCED27X","short_pith_number":"pith:J4LIY547","canonical_record":{"source":{"id":"1910.11483","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-10-25T01:35:14Z","cross_cats_sorted":[],"title_canon_sha256":"bb6638ebc07652f76559c1dfef7de8139e57f4bce41b06c9e178e64249b6207c","abstract_canon_sha256":"1f8ef8e6bd5a8fd854f18e9ba929c90c84b57d840b7ee80206abc6da462fa31a"},"schema_version":"1.0"},"canonical_sha256":"4f168c779f64823eb7fed0b431107afdefe3ac22c7e9abf34ee9c95e5827aa33","source":{"kind":"arxiv","id":"1910.11483","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.11483","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"arxiv_version","alias_value":"1910.11483v1","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.11483","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"pith_short_12","alias_value":"J4LIY547MSBD","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"pith_short_16","alias_value":"J4LIY547MSBD5N76","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"pith_short_8","alias_value":"J4LIY547","created_at":"2026-07-05T00:14:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:J4LIY547MSBD5N762C2DCED27X","target":"record","payload":{"canonical_record":{"source":{"id":"1910.11483","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-10-25T01:35:14Z","cross_cats_sorted":[],"title_canon_sha256":"bb6638ebc07652f76559c1dfef7de8139e57f4bce41b06c9e178e64249b6207c","abstract_canon_sha256":"1f8ef8e6bd5a8fd854f18e9ba929c90c84b57d840b7ee80206abc6da462fa31a"},"schema_version":"1.0"},"canonical_sha256":"4f168c779f64823eb7fed0b431107afdefe3ac22c7e9abf34ee9c95e5827aa33","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:14:46.815154Z","signature_b64":"g7IDQTuADN+xOHz7Ujzt9F4TKzP3bCTTCqLqGgGy9SAJoX5hCfzQzQ3t/1Vg2njOo0iqzTX57RvXwcveNM1qBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f168c779f64823eb7fed0b431107afdefe3ac22c7e9abf34ee9c95e5827aa33","last_reissued_at":"2026-07-05T00:14:46.814701Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:14:46.814701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.11483","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":"2026-07-05T00:14:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uDRroRoDIGGJs8eiEO1EKyVowDLj+K/DK3e631Q3L6GORNMoIKndzJEUinSDNDPDLqzNAqz+HXDV2n9aYK0wDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T09:03:51.002430Z"},"content_sha256":"8ccc7597772580d5d2d6acf270829366b4c6463bfe064eafb3246ee06fc0a333","schema_version":"1.0","event_id":"sha256:8ccc7597772580d5d2d6acf270829366b4c6463bfe064eafb3246ee06fc0a333"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:J4LIY547MSBD5N762C2DCED27X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generating a Common Question from Multiple Documents using Multi-source Encoder-Decoder Models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Chris Brockett, Sudha Rao, Sungjin Lee, Woon Sang Cho, Yizhe Zhang","submitted_at":"2019-10-25T01:35:14Z","abstract_excerpt":"Ambiguous user queries in search engines result in the retrieval of documents that often span multiple topics. One potential solution is for the search engine to generate multiple refined queries, each of which relates to a subset of the documents spanning the same topic. A preliminary step towards this goal is to generate a question that captures common concepts of multiple documents. We propose a new task of generating common question from multiple documents and present simple variant of an existing multi-source encoder-decoder framework, called the Multi-Source Question Generator (MSQG). We"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.11483","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/1910.11483/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":"2026-07-05T00:14:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VzeXbu1+U9vMl7NaeT5DIY0437YjiMOPBimJva71jdJCChTkO23MohwMTXQpvTrBpDM0qsFufr5n5IVwQ/GHCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T09:03:51.002815Z"},"content_sha256":"0a0d247550cf4e1102a17e537cc2835183ffd4f1606f3233c98f61811c620e88","schema_version":"1.0","event_id":"sha256:0a0d247550cf4e1102a17e537cc2835183ffd4f1606f3233c98f61811c620e88"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J4LIY547MSBD5N762C2DCED27X/bundle.json","state_url":"https://pith.science/pith/J4LIY547MSBD5N762C2DCED27X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J4LIY547MSBD5N762C2DCED27X/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":"2026-08-13T09:03:51Z","links":{"resolver":"https://pith.science/pith/J4LIY547MSBD5N762C2DCED27X","bundle":"https://pith.science/pith/J4LIY547MSBD5N762C2DCED27X/bundle.json","state":"https://pith.science/pith/J4LIY547MSBD5N762C2DCED27X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J4LIY547MSBD5N762C2DCED27X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:J4LIY547MSBD5N762C2DCED27X","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":"1f8ef8e6bd5a8fd854f18e9ba929c90c84b57d840b7ee80206abc6da462fa31a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-10-25T01:35:14Z","title_canon_sha256":"bb6638ebc07652f76559c1dfef7de8139e57f4bce41b06c9e178e64249b6207c"},"schema_version":"1.0","source":{"id":"1910.11483","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.11483","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"arxiv_version","alias_value":"1910.11483v1","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.11483","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"pith_short_12","alias_value":"J4LIY547MSBD","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"pith_short_16","alias_value":"J4LIY547MSBD5N76","created_at":"2026-07-05T00:14:46Z"},{"alias_kind":"pith_short_8","alias_value":"J4LIY547","created_at":"2026-07-05T00:14:46Z"}],"graph_snapshots":[{"event_id":"sha256:0a0d247550cf4e1102a17e537cc2835183ffd4f1606f3233c98f61811c620e88","target":"graph","created_at":"2026-07-05T00:14:46Z","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/1910.11483/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ambiguous user queries in search engines result in the retrieval of documents that often span multiple topics. One potential solution is for the search engine to generate multiple refined queries, each of which relates to a subset of the documents spanning the same topic. A preliminary step towards this goal is to generate a question that captures common concepts of multiple documents. We propose a new task of generating common question from multiple documents and present simple variant of an existing multi-source encoder-decoder framework, called the Multi-Source Question Generator (MSQG). We","authors_text":"Chris Brockett, Sudha Rao, Sungjin Lee, Woon Sang Cho, Yizhe Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-10-25T01:35:14Z","title":"Generating a Common Question from Multiple Documents using Multi-source Encoder-Decoder Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.11483","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":"sha256:8ccc7597772580d5d2d6acf270829366b4c6463bfe064eafb3246ee06fc0a333","target":"record","created_at":"2026-07-05T00:14:46Z","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":"1f8ef8e6bd5a8fd854f18e9ba929c90c84b57d840b7ee80206abc6da462fa31a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-10-25T01:35:14Z","title_canon_sha256":"bb6638ebc07652f76559c1dfef7de8139e57f4bce41b06c9e178e64249b6207c"},"schema_version":"1.0","source":{"id":"1910.11483","kind":"arxiv","version":1}},"canonical_sha256":"4f168c779f64823eb7fed0b431107afdefe3ac22c7e9abf34ee9c95e5827aa33","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f168c779f64823eb7fed0b431107afdefe3ac22c7e9abf34ee9c95e5827aa33","first_computed_at":"2026-07-05T00:14:46.814701Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:14:46.814701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g7IDQTuADN+xOHz7Ujzt9F4TKzP3bCTTCqLqGgGy9SAJoX5hCfzQzQ3t/1Vg2njOo0iqzTX57RvXwcveNM1qBA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:14:46.815154Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.11483","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ccc7597772580d5d2d6acf270829366b4c6463bfe064eafb3246ee06fc0a333","sha256:0a0d247550cf4e1102a17e537cc2835183ffd4f1606f3233c98f61811c620e88"],"state_sha256":"c782cb43e5cf5dc173208412a8c8cafd72b3c8527929b05dcb0a289382c6dc7f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UEQFDQfmnKT3nBKSDI5w6ENnjsPfIxzTnsIvApk1/InQLMUij+8XUgof5rOV/zYf2QXUklFDQN5v0tFt7upoBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T09:03:51.005483Z","bundle_sha256":"95fe9f5406b2755e76df62ee20916ab3fb9755700b737e3248944c738bcba475"}}