{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:CMMVPEOOBEGATVKHKNEY4HW2VG","short_pith_number":"pith:CMMVPEOO","canonical_record":{"source":{"id":"2101.12015","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-01-28T14:29:03Z","cross_cats_sorted":["cs.AI","cs.LG"],"title_canon_sha256":"bfc92f9ce71c5424f81ed257e34e98dfeeda05d9c51284f073a6e436de71bf4f","abstract_canon_sha256":"d43ce292f782077f6c3689c1d05af846fbe478b09dc7a63636b4470dd67de81b"},"schema_version":"1.0"},"canonical_sha256":"13195791ce090c09d54753498e1edaa98972f08c0aaf51eab9063235035d8e94","source":{"kind":"arxiv","id":"2101.12015","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.12015","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"arxiv_version","alias_value":"2101.12015v3","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.12015","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"pith_short_12","alias_value":"CMMVPEOOBEGA","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"pith_short_16","alias_value":"CMMVPEOOBEGATVKH","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"pith_short_8","alias_value":"CMMVPEOO","created_at":"2026-07-05T03:00:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:CMMVPEOOBEGATVKHKNEY4HW2VG","target":"record","payload":{"canonical_record":{"source":{"id":"2101.12015","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-01-28T14:29:03Z","cross_cats_sorted":["cs.AI","cs.LG"],"title_canon_sha256":"bfc92f9ce71c5424f81ed257e34e98dfeeda05d9c51284f073a6e436de71bf4f","abstract_canon_sha256":"d43ce292f782077f6c3689c1d05af846fbe478b09dc7a63636b4470dd67de81b"},"schema_version":"1.0"},"canonical_sha256":"13195791ce090c09d54753498e1edaa98972f08c0aaf51eab9063235035d8e94","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:00:31.507482Z","signature_b64":"8KAit6INuvlh788c/aNCF71DRcFZPUqeO1KtalOSKShmBN5nCzhJrbhUk28pfta0YU03OACRUc4QwE+MlvcDDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"13195791ce090c09d54753498e1edaa98972f08c0aaf51eab9063235035d8e94","last_reissued_at":"2026-07-05T03:00:31.507021Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:00:31.507021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.12015","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:00:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OQj4UJpAiLpSGbd9U9YSUOQLZBG7FxkKSfwDuQ/4dAauDIxoTI6+ArnQ7l6Vh1kX9tAzunsAWMEVI7SbTMTICw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T19:15:29.268278Z"},"content_sha256":"11ff9586b2a2450242f4fdf72eac7db59df702a20fbd5f8c0ecfd19e8eb926cc","schema_version":"1.0","event_id":"sha256:11ff9586b2a2450242f4fdf72eac7db59df702a20fbd5f8c0ecfd19e8eb926cc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:CMMVPEOOBEGATVKHKNEY4HW2VG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"BERTa\\'u: Ita\\'u BERT for digital customer service","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.LG"],"primary_cat":"cs.CL","authors_text":"Alex F. Mansano, Gustavo T. Ferreira, Jos\\'e Di\\'e Viegas, Paulo Finardi, Vinicius F. Carid\\'a","submitted_at":"2021-01-28T14:29:03Z","abstract_excerpt":"In the last few years, three major topics received increased interest: deep learning, NLP and conversational agents. Bringing these three topics together to create an amazing digital customer experience and indeed deploy in production and solve real-world problems is something innovative and disruptive. We introduce a new Portuguese financial domain language representation model called BERTa\\'u. BERTa\\'u is an uncased BERT-base trained from scratch with data from the Ita\\'u virtual assistant chatbot solution. Our novel contribution is that BERTa\\'u pretrained language model requires less data,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.12015","kind":"arxiv","version":3},"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/2101.12015/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":"2026-07-05T03:00:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uI54xcOgc6MRBbltvfx1kbNJLb75Qa3SE+l032Z0XjxfYWvYmhOAwZXBchcSu6PzCuTPT/Ke1n4vt26m2rctDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T19:15:29.268670Z"},"content_sha256":"4dd730d5ea413f2fd190cf3f8cd92c926122744d720325c77d2391bc1d8f0ed8","schema_version":"1.0","event_id":"sha256:4dd730d5ea413f2fd190cf3f8cd92c926122744d720325c77d2391bc1d8f0ed8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CMMVPEOOBEGATVKHKNEY4HW2VG/bundle.json","state_url":"https://pith.science/pith/CMMVPEOOBEGATVKHKNEY4HW2VG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CMMVPEOOBEGATVKHKNEY4HW2VG/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":"2026-07-11T19:15:29Z","links":{"resolver":"https://pith.science/pith/CMMVPEOOBEGATVKHKNEY4HW2VG","bundle":"https://pith.science/pith/CMMVPEOOBEGATVKHKNEY4HW2VG/bundle.json","state":"https://pith.science/pith/CMMVPEOOBEGATVKHKNEY4HW2VG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CMMVPEOOBEGATVKHKNEY4HW2VG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:CMMVPEOOBEGATVKHKNEY4HW2VG","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":"d43ce292f782077f6c3689c1d05af846fbe478b09dc7a63636b4470dd67de81b","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-01-28T14:29:03Z","title_canon_sha256":"bfc92f9ce71c5424f81ed257e34e98dfeeda05d9c51284f073a6e436de71bf4f"},"schema_version":"1.0","source":{"id":"2101.12015","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.12015","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"arxiv_version","alias_value":"2101.12015v3","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.12015","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"pith_short_12","alias_value":"CMMVPEOOBEGA","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"pith_short_16","alias_value":"CMMVPEOOBEGATVKH","created_at":"2026-07-05T03:00:31Z"},{"alias_kind":"pith_short_8","alias_value":"CMMVPEOO","created_at":"2026-07-05T03:00:31Z"}],"graph_snapshots":[{"event_id":"sha256:4dd730d5ea413f2fd190cf3f8cd92c926122744d720325c77d2391bc1d8f0ed8","target":"graph","created_at":"2026-07-05T03:00:31Z","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/2101.12015/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the last few years, three major topics received increased interest: deep learning, NLP and conversational agents. Bringing these three topics together to create an amazing digital customer experience and indeed deploy in production and solve real-world problems is something innovative and disruptive. We introduce a new Portuguese financial domain language representation model called BERTa\\'u. BERTa\\'u is an uncased BERT-base trained from scratch with data from the Ita\\'u virtual assistant chatbot solution. Our novel contribution is that BERTa\\'u pretrained language model requires less data,","authors_text":"Alex F. Mansano, Gustavo T. Ferreira, Jos\\'e Di\\'e Viegas, Paulo Finardi, Vinicius F. Carid\\'a","cross_cats":["cs.AI","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-01-28T14:29:03Z","title":"BERTa\\'u: Ita\\'u BERT for digital customer service"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.12015","kind":"arxiv","version":3},"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":"sha256:11ff9586b2a2450242f4fdf72eac7db59df702a20fbd5f8c0ecfd19e8eb926cc","target":"record","created_at":"2026-07-05T03:00:31Z","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":"d43ce292f782077f6c3689c1d05af846fbe478b09dc7a63636b4470dd67de81b","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-01-28T14:29:03Z","title_canon_sha256":"bfc92f9ce71c5424f81ed257e34e98dfeeda05d9c51284f073a6e436de71bf4f"},"schema_version":"1.0","source":{"id":"2101.12015","kind":"arxiv","version":3}},"canonical_sha256":"13195791ce090c09d54753498e1edaa98972f08c0aaf51eab9063235035d8e94","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"13195791ce090c09d54753498e1edaa98972f08c0aaf51eab9063235035d8e94","first_computed_at":"2026-07-05T03:00:31.507021Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:00:31.507021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8KAit6INuvlh788c/aNCF71DRcFZPUqeO1KtalOSKShmBN5nCzhJrbhUk28pfta0YU03OACRUc4QwE+MlvcDDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:00:31.507482Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.12015","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11ff9586b2a2450242f4fdf72eac7db59df702a20fbd5f8c0ecfd19e8eb926cc","sha256:4dd730d5ea413f2fd190cf3f8cd92c926122744d720325c77d2391bc1d8f0ed8"],"state_sha256":"378384478cf943d85e8053755830e68cadda10f4bc7043ee8ed233e40a8b4bf2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y1ewlBstmkCjtQshale4L75CjJtBYeLYq7xxsr95KJqP05teoGCOcw6GMcgXclwoiqc7XXtYkgUh8frEHSfsAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T19:15:29.270856Z","bundle_sha256":"effef2aa2ac0863edd59a7687fba7944364fb7214c2df5d4eb9d837d678470d6"}}