{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:XD43H6OSINOT3IFSK27PYK5BIL","short_pith_number":"pith:XD43H6OS","canonical_record":{"source":{"id":"2203.15959","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2022-03-30T00:34:56Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"9fe376891206068e1853604572a9db2399288b957ed4a75b1a75fab54d38fbc6","abstract_canon_sha256":"c76a6a6bd5abb7b739571a6458e5f83633a9df20d2f7496508ee928c7704e732"},"schema_version":"1.0"},"canonical_sha256":"b8f9b3f9d2435d3da0b256befc2ba142cff16924aa4cabe894e2ec74ce62df0c","source":{"kind":"arxiv","id":"2203.15959","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.15959","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"arxiv_version","alias_value":"2203.15959v1","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.15959","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"pith_short_12","alias_value":"XD43H6OSINOT","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"pith_short_16","alias_value":"XD43H6OSINOT3IFS","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"pith_short_8","alias_value":"XD43H6OS","created_at":"2026-07-05T04:10:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:XD43H6OSINOT3IFSK27PYK5BIL","target":"record","payload":{"canonical_record":{"source":{"id":"2203.15959","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2022-03-30T00:34:56Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"9fe376891206068e1853604572a9db2399288b957ed4a75b1a75fab54d38fbc6","abstract_canon_sha256":"c76a6a6bd5abb7b739571a6458e5f83633a9df20d2f7496508ee928c7704e732"},"schema_version":"1.0"},"canonical_sha256":"b8f9b3f9d2435d3da0b256befc2ba142cff16924aa4cabe894e2ec74ce62df0c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:10:05.478103Z","signature_b64":"vz904kG9TsB5Y7kg8Tks9R4dmT1iQ4z0W96ju9yjejgVmbeCaBNDhUTiwuWyRgeMX1iRfJZotdjTEdslHPGaAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8f9b3f9d2435d3da0b256befc2ba142cff16924aa4cabe894e2ec74ce62df0c","last_reissued_at":"2026-07-05T04:10:05.477719Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:10:05.477719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.15959","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":"2026-07-05T04:10:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hdBQLKP9wQemNIhSCgTB6wus7HGjCipdLewrrfjCecVWhd3W3B/MkYaTeTmbFWnxbA4H87gXj2zV+7Pp0ea0Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:23:26.309909Z"},"content_sha256":"11f1c6670810f28a60e3e036b6b8222a6091660c17ef1d932060b345aadd4ec4","schema_version":"1.0","event_id":"sha256:11f1c6670810f28a60e3e036b6b8222a6091660c17ef1d932060b345aadd4ec4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:XD43H6OSINOT3IFSK27PYK5BIL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entity-driven Fact-aware Abstractive Summarization of Biomedical Literature","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"cs.CL","authors_text":"Amanuel Alambo, Krishnaprasad Thirunarayan, Michael Raymer, Tanvi Banerjee","submitted_at":"2022-03-30T00:34:56Z","abstract_excerpt":"As part of the large number of scientific articles being published every year, the publication rate of biomedical literature has been increasing. Consequently, there has been considerable effort to harness and summarize the massive amount of biomedical research articles. While transformer-based encoder-decoder models in a vanilla source document-to-summary setting have been extensively studied for abstractive summarization in different domains, their major limitations continue to be entity hallucination (a phenomenon where generated summaries constitute entities not related to or present in so"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.15959","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/2203.15959/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":"2026-07-05T04:10:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BnmC5p7ODF54ePuSJst6myeBZwrCORAOwr/7cZSLnpLMuK96R8fWQ1A5CM9efZXgMSzk5LexRkvKXWEsf3pwDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:23:26.310293Z"},"content_sha256":"d83c7a95548c797bfe543e9141629aa8956f3298dd2e69eeea28f4bf6a6aa831","schema_version":"1.0","event_id":"sha256:d83c7a95548c797bfe543e9141629aa8956f3298dd2e69eeea28f4bf6a6aa831"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XD43H6OSINOT3IFSK27PYK5BIL/bundle.json","state_url":"https://pith.science/pith/XD43H6OSINOT3IFSK27PYK5BIL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XD43H6OSINOT3IFSK27PYK5BIL/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":"2026-07-07T10:23:26Z","links":{"resolver":"https://pith.science/pith/XD43H6OSINOT3IFSK27PYK5BIL","bundle":"https://pith.science/pith/XD43H6OSINOT3IFSK27PYK5BIL/bundle.json","state":"https://pith.science/pith/XD43H6OSINOT3IFSK27PYK5BIL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XD43H6OSINOT3IFSK27PYK5BIL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:XD43H6OSINOT3IFSK27PYK5BIL","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":"c76a6a6bd5abb7b739571a6458e5f83633a9df20d2f7496508ee928c7704e732","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2022-03-30T00:34:56Z","title_canon_sha256":"9fe376891206068e1853604572a9db2399288b957ed4a75b1a75fab54d38fbc6"},"schema_version":"1.0","source":{"id":"2203.15959","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.15959","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"arxiv_version","alias_value":"2203.15959v1","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.15959","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"pith_short_12","alias_value":"XD43H6OSINOT","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"pith_short_16","alias_value":"XD43H6OSINOT3IFS","created_at":"2026-07-05T04:10:05Z"},{"alias_kind":"pith_short_8","alias_value":"XD43H6OS","created_at":"2026-07-05T04:10:05Z"}],"graph_snapshots":[{"event_id":"sha256:d83c7a95548c797bfe543e9141629aa8956f3298dd2e69eeea28f4bf6a6aa831","target":"graph","created_at":"2026-07-05T04:10:05Z","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/2203.15959/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As part of the large number of scientific articles being published every year, the publication rate of biomedical literature has been increasing. Consequently, there has been considerable effort to harness and summarize the massive amount of biomedical research articles. While transformer-based encoder-decoder models in a vanilla source document-to-summary setting have been extensively studied for abstractive summarization in different domains, their major limitations continue to be entity hallucination (a phenomenon where generated summaries constitute entities not related to or present in so","authors_text":"Amanuel Alambo, Krishnaprasad Thirunarayan, Michael Raymer, Tanvi Banerjee","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2022-03-30T00:34:56Z","title":"Entity-driven Fact-aware Abstractive Summarization of Biomedical Literature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.15959","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":"sha256:11f1c6670810f28a60e3e036b6b8222a6091660c17ef1d932060b345aadd4ec4","target":"record","created_at":"2026-07-05T04:10:05Z","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":"c76a6a6bd5abb7b739571a6458e5f83633a9df20d2f7496508ee928c7704e732","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2022-03-30T00:34:56Z","title_canon_sha256":"9fe376891206068e1853604572a9db2399288b957ed4a75b1a75fab54d38fbc6"},"schema_version":"1.0","source":{"id":"2203.15959","kind":"arxiv","version":1}},"canonical_sha256":"b8f9b3f9d2435d3da0b256befc2ba142cff16924aa4cabe894e2ec74ce62df0c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8f9b3f9d2435d3da0b256befc2ba142cff16924aa4cabe894e2ec74ce62df0c","first_computed_at":"2026-07-05T04:10:05.477719Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:10:05.477719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vz904kG9TsB5Y7kg8Tks9R4dmT1iQ4z0W96ju9yjejgVmbeCaBNDhUTiwuWyRgeMX1iRfJZotdjTEdslHPGaAg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:10:05.478103Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.15959","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11f1c6670810f28a60e3e036b6b8222a6091660c17ef1d932060b345aadd4ec4","sha256:d83c7a95548c797bfe543e9141629aa8956f3298dd2e69eeea28f4bf6a6aa831"],"state_sha256":"d628d137d3b1671682ea0dba01db09d6827ba1764e3f2dab2d92ca773d210769"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jYNgAnpXY6DKpbK/pO0XmwrtQglvMe3Vzhdg6tmFYtu/lAslfNIUcMWXh6ji6V/MdXijShEMbvolxzxRrdfLDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T10:23:26.312242Z","bundle_sha256":"621aff87faf57b6c3ba7b228e7a8cfcfc509844d4529a5e6f5f88818137bb7c2"}}