{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PK2SUGHP6VUVZRUYN7SNHPZCWX","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":"e3c004bb7b37b0b007f1516245ca51ee17d64a401fffdaa4f0c0b8f91778b4e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-15T05:09:46Z","title_canon_sha256":"4614aaebecfd6599bc0e4caf7f4acc72e40befdf5b677e5ef5cd420f7b540996"},"schema_version":"1.0","source":{"id":"2109.07080","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.07080","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"arxiv_version","alias_value":"2109.07080v1","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.07080","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"pith_short_12","alias_value":"PK2SUGHP6VUV","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"pith_short_16","alias_value":"PK2SUGHP6VUVZRUY","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"pith_short_8","alias_value":"PK2SUGHP","created_at":"2026-07-05T03:14:38Z"}],"graph_snapshots":[{"event_id":"sha256:ec52b9d021fd2bf0a582eb34dd3748639cdb6760c0294f92d4b2d69c492c8878","target":"graph","created_at":"2026-07-05T03:14:38Z","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/2109.07080/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper explores a variant of automatic headline generation methods, where a generated headline is required to include a given phrase such as a company or a product name. Previous methods using Transformer-based models generate a headline including a given phrase by providing the encoder with additional information corresponding to the given phrase. However, these methods cannot always include the phrase in the generated headline. Inspired by previous RNN-based methods generating token sequences in backward and forward directions from the given phrase, we propose a simple Transformer-based ","authors_text":"Hideaki Tamori, Kentaro Inui, Koichi Takeda, Kosuke Yamada, Naoaki Okazaki, Ryohei Sasano, Yuta Hitomi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-15T05:09:46Z","title":"Transformer-based Lexically Constrained Headline Generation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.07080","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:ae2cd4ff1c2499daef0611f1464382708715007ea2f6bdfb56c766717bf19847","target":"record","created_at":"2026-07-05T03:14:38Z","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":"e3c004bb7b37b0b007f1516245ca51ee17d64a401fffdaa4f0c0b8f91778b4e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-15T05:09:46Z","title_canon_sha256":"4614aaebecfd6599bc0e4caf7f4acc72e40befdf5b677e5ef5cd420f7b540996"},"schema_version":"1.0","source":{"id":"2109.07080","kind":"arxiv","version":1}},"canonical_sha256":"7ab52a18eff5695cc6986fe4d3bf22b5ea3dbf3d6e7e7f7e2e7b51427c7a46ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ab52a18eff5695cc6986fe4d3bf22b5ea3dbf3d6e7e7f7e2e7b51427c7a46ab","first_computed_at":"2026-07-05T03:14:38.626964Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:14:38.626964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j+7NDJoeRORgjUa3OfSj2xZtkC8aUepwMOl1LSXdBC8nLuYAY/szmIJZWq30LeCGHh/pi9wphlvnZndGOyiWCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:14:38.627360Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.07080","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ae2cd4ff1c2499daef0611f1464382708715007ea2f6bdfb56c766717bf19847","sha256:ec52b9d021fd2bf0a582eb34dd3748639cdb6760c0294f92d4b2d69c492c8878"],"state_sha256":"b58d1dd21c755cc353787613b3ba91e8fac515883f0c592f215e864c8e1599d1"}