{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TGTRORVYSI7K34Z5DW3T6SDUHF","short_pith_number":"pith:TGTRORVY","canonical_record":{"source":{"id":"1809.00509","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-09-03T09:07:17Z","cross_cats_sorted":["cs.CL","cs.IR"],"title_canon_sha256":"2dec03dd529e7a0c9888d868f0c99c6d99a381b01ad5bb09d393164c1e15df92","abstract_canon_sha256":"19834d4f649b68bf8fcd6eec87e877ff9cb20eeb3039260043654bfcb2df026d"},"schema_version":"1.0"},"canonical_sha256":"99a71746b8923eadf33d1db73f4874395e24feb1c959b63e6d96fac779682a52","source":{"kind":"arxiv","id":"1809.00509","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00509","created_at":"2026-05-18T00:06:18Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00509v1","created_at":"2026-05-18T00:06:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00509","created_at":"2026-05-18T00:06:18Z"},{"alias_kind":"pith_short_12","alias_value":"TGTRORVYSI7K","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TGTRORVYSI7K34Z5","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TGTRORVY","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TGTRORVYSI7K34Z5DW3T6SDUHF","target":"record","payload":{"canonical_record":{"source":{"id":"1809.00509","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-09-03T09:07:17Z","cross_cats_sorted":["cs.CL","cs.IR"],"title_canon_sha256":"2dec03dd529e7a0c9888d868f0c99c6d99a381b01ad5bb09d393164c1e15df92","abstract_canon_sha256":"19834d4f649b68bf8fcd6eec87e877ff9cb20eeb3039260043654bfcb2df026d"},"schema_version":"1.0"},"canonical_sha256":"99a71746b8923eadf33d1db73f4874395e24feb1c959b63e6d96fac779682a52","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:18.019848Z","signature_b64":"B6dhdDlXmU6ZPif3HraKsKwZwfw/V5dbg4Jcbew4SopPQ7cQ2NO/dPDh7xXPF72zpeLOzQAJOSTIN3jxIDdZBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"99a71746b8923eadf33d1db73f4874395e24feb1c959b63e6d96fac779682a52","last_reissued_at":"2026-05-18T00:06:18.019189Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:18.019189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.00509","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":"2026-05-18T00:06:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l5xabCiIubJVl4/toySsVONOhlSoZ5JX0Jh1Oc9pLCWiyv+yxy4TmNF+g9QMQE3dkXCHT/DcDF43bwmQtgy5Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:31:05.394977Z"},"content_sha256":"4fc5419c2d87fc3d99c5cf1d32ec6b6f27cba0cfb36024985da2d2ba43e4086f","schema_version":"1.0","event_id":"sha256:4fc5419c2d87fc3d99c5cf1d32ec6b6f27cba0cfb36024985da2d2ba43e4086f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TGTRORVYSI7K34Z5DW3T6SDUHF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DeFactoNLP: Fact Verification using Entity Recognition, TFIDF Vector Comparison and Decomposable Attention","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CL","cs.IR"],"primary_cat":"cs.AI","authors_text":"Aniketh Janardhan Reddy, Diego Esteves, Gil Rocha","submitted_at":"2018-09-03T09:07:17Z","abstract_excerpt":"In this paper, we describe DeFactoNLP, the system we designed for the FEVER 2018 Shared Task. The aim of this task was to conceive a system that can not only automatically assess the veracity of a claim but also retrieve evidence supporting this assessment from Wikipedia. In our approach, the Wikipedia documents whose Term Frequency-Inverse Document Frequency (TFIDF) vectors are most similar to the vector of the claim and those documents whose names are similar to those of the named entities (NEs) mentioned in the claim are identified as the documents which might contain evidence. The sentence"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00509","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":"2026-05-18T00:06:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6B5GghEghF3uPDDlYlc3Do+UlNMVnNtktxET8DYNTR5vZ20NHOEv684wyfp8hBC0lfL/KoCPTsXE3cciGuVqAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:31:05.395701Z"},"content_sha256":"8b81fbc76b6343c3e6b9cc04fc41037fd79eeb9c4666e60aa2f98a1e7bc8866c","schema_version":"1.0","event_id":"sha256:8b81fbc76b6343c3e6b9cc04fc41037fd79eeb9c4666e60aa2f98a1e7bc8866c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TGTRORVYSI7K34Z5DW3T6SDUHF/bundle.json","state_url":"https://pith.science/pith/TGTRORVYSI7K34Z5DW3T6SDUHF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TGTRORVYSI7K34Z5DW3T6SDUHF/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":"2026-05-27T00:31:05Z","links":{"resolver":"https://pith.science/pith/TGTRORVYSI7K34Z5DW3T6SDUHF","bundle":"https://pith.science/pith/TGTRORVYSI7K34Z5DW3T6SDUHF/bundle.json","state":"https://pith.science/pith/TGTRORVYSI7K34Z5DW3T6SDUHF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TGTRORVYSI7K34Z5DW3T6SDUHF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TGTRORVYSI7K34Z5DW3T6SDUHF","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":"19834d4f649b68bf8fcd6eec87e877ff9cb20eeb3039260043654bfcb2df026d","cross_cats_sorted":["cs.CL","cs.IR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-09-03T09:07:17Z","title_canon_sha256":"2dec03dd529e7a0c9888d868f0c99c6d99a381b01ad5bb09d393164c1e15df92"},"schema_version":"1.0","source":{"id":"1809.00509","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00509","created_at":"2026-05-18T00:06:18Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00509v1","created_at":"2026-05-18T00:06:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00509","created_at":"2026-05-18T00:06:18Z"},{"alias_kind":"pith_short_12","alias_value":"TGTRORVYSI7K","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TGTRORVYSI7K34Z5","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TGTRORVY","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:8b81fbc76b6343c3e6b9cc04fc41037fd79eeb9c4666e60aa2f98a1e7bc8866c","target":"graph","created_at":"2026-05-18T00:06:18Z","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":"In this paper, we describe DeFactoNLP, the system we designed for the FEVER 2018 Shared Task. The aim of this task was to conceive a system that can not only automatically assess the veracity of a claim but also retrieve evidence supporting this assessment from Wikipedia. In our approach, the Wikipedia documents whose Term Frequency-Inverse Document Frequency (TFIDF) vectors are most similar to the vector of the claim and those documents whose names are similar to those of the named entities (NEs) mentioned in the claim are identified as the documents which might contain evidence. The sentence","authors_text":"Aniketh Janardhan Reddy, Diego Esteves, Gil Rocha","cross_cats":["cs.CL","cs.IR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-09-03T09:07:17Z","title":"DeFactoNLP: Fact Verification using Entity Recognition, TFIDF Vector Comparison and Decomposable Attention"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00509","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":"sha256:4fc5419c2d87fc3d99c5cf1d32ec6b6f27cba0cfb36024985da2d2ba43e4086f","target":"record","created_at":"2026-05-18T00:06:18Z","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":"19834d4f649b68bf8fcd6eec87e877ff9cb20eeb3039260043654bfcb2df026d","cross_cats_sorted":["cs.CL","cs.IR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-09-03T09:07:17Z","title_canon_sha256":"2dec03dd529e7a0c9888d868f0c99c6d99a381b01ad5bb09d393164c1e15df92"},"schema_version":"1.0","source":{"id":"1809.00509","kind":"arxiv","version":1}},"canonical_sha256":"99a71746b8923eadf33d1db73f4874395e24feb1c959b63e6d96fac779682a52","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99a71746b8923eadf33d1db73f4874395e24feb1c959b63e6d96fac779682a52","first_computed_at":"2026-05-18T00:06:18.019189Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:18.019189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"B6dhdDlXmU6ZPif3HraKsKwZwfw/V5dbg4Jcbew4SopPQ7cQ2NO/dPDh7xXPF72zpeLOzQAJOSTIN3jxIDdZBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:18.019848Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.00509","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4fc5419c2d87fc3d99c5cf1d32ec6b6f27cba0cfb36024985da2d2ba43e4086f","sha256:8b81fbc76b6343c3e6b9cc04fc41037fd79eeb9c4666e60aa2f98a1e7bc8866c"],"state_sha256":"84f4237e6018f37baacd32af550261020334a1b17c5800899314c695b1a151b2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SUR6cu4BPamukZ42jl91PYyPLp2/myjwNeE3mkeFwLCVzVFoh3ENOX0JVuP80YxveBZ+R8L2hXBFyjwsS4l1AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T00:31:05.399084Z","bundle_sha256":"a5f6a3da6927f22e6775ab99f2bcd4f49d51857d68233662589ea1d47b45994d"}}