{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:LEONA3UKVOBJYLSQY6SK2EZW46","short_pith_number":"pith:LEONA3UK","canonical_record":{"source":{"id":"2005.09271","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-19T08:09:58Z","cross_cats_sorted":["cs.SD","eess.AS"],"title_canon_sha256":"4a5ee03c0ef665060b069b16b7cf95fa8b2d09c88fe9f297fd8f7569618b576f","abstract_canon_sha256":"0324ddb220941a97ac398aa870cd05d4df79e73b5bdbebd7500e7220c0c0fb59"},"schema_version":"1.0"},"canonical_sha256":"591cd06e8aab829c2e50c7a4ad1336e79dd1c197ec384d5ca109ba34d6fbd760","source":{"kind":"arxiv","id":"2005.09271","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.09271","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"arxiv_version","alias_value":"2005.09271v1","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.09271","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"pith_short_12","alias_value":"LEONA3UKVOBJ","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"pith_short_16","alias_value":"LEONA3UKVOBJYLSQ","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"pith_short_8","alias_value":"LEONA3UK","created_at":"2026-07-05T01:03:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:LEONA3UKVOBJYLSQY6SK2EZW46","target":"record","payload":{"canonical_record":{"source":{"id":"2005.09271","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-19T08:09:58Z","cross_cats_sorted":["cs.SD","eess.AS"],"title_canon_sha256":"4a5ee03c0ef665060b069b16b7cf95fa8b2d09c88fe9f297fd8f7569618b576f","abstract_canon_sha256":"0324ddb220941a97ac398aa870cd05d4df79e73b5bdbebd7500e7220c0c0fb59"},"schema_version":"1.0"},"canonical_sha256":"591cd06e8aab829c2e50c7a4ad1336e79dd1c197ec384d5ca109ba34d6fbd760","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:03:48.689348Z","signature_b64":"qr8mgIQ6vUs6csJhs5b26xhOyCulGExL+4mg3zqex13Lz1A5HFzwQQOg/WdWI8eq8VIaJwOy/mggEMfeXHIiBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"591cd06e8aab829c2e50c7a4ad1336e79dd1c197ec384d5ca109ba34d6fbd760","last_reissued_at":"2026-07-05T01:03:48.688888Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:03:48.688888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.09271","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":"2026-07-05T01:03:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dDsSOHw+C3Pw2oaOLq7C2qUU8Ke5h0kydOhiBUQ4xAwc5ip1++fgIFbCAw9GNymEvGO2QliDW2HdiijJhOuFDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T06:32:28.859818Z"},"content_sha256":"f5ddf101b3fa5c3ec2702191b79dc6b8975329d38cf98bacd11146ed0ba334bc","schema_version":"1.0","event_id":"sha256:f5ddf101b3fa5c3ec2702191b79dc6b8975329d38cf98bacd11146ed0ba334bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:LEONA3UKVOBJYLSQY6SK2EZW46","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving Accent Conversion with Reference Encoder and End-To-End Text-To-Speech","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SD","eess.AS"],"primary_cat":"cs.CL","authors_text":"Benlai Tang, Hao Huang, Kang Wang, Wei Li, Wenjie Li, Xiang Yin, Yushi Zhao, Yuxuan Wang, Zejun Ma","submitted_at":"2020-05-19T08:09:58Z","abstract_excerpt":"Accent conversion (AC) transforms a non-native speaker's accent into a native accent while maintaining the speaker's voice timbre. In this paper, we propose approaches to improving accent conversion applicability, as well as quality. First of all, we assume no reference speech is available at the conversion stage, and hence we employ an end-to-end text-to-speech system that is trained on native speech to generate native reference speech. To improve the quality and accent of the converted speech, we introduce reference encoders which make us capable of utilizing multi-source information. This i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.09271","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/2005.09271/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":"2026-07-05T01:03:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4TfYFh1fg42RnWBIUf2uKP74M2LjZ3Qibp65QUCwLSnUZtN+zZd53doEUxIC1Km96bM1fsz2T4lLWATvS3uhDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T06:32:28.860387Z"},"content_sha256":"0926629dad40d2fae509c4bc3bc5e929b44a1ded2da12f11110367dfbe159b52","schema_version":"1.0","event_id":"sha256:0926629dad40d2fae509c4bc3bc5e929b44a1ded2da12f11110367dfbe159b52"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LEONA3UKVOBJYLSQY6SK2EZW46/bundle.json","state_url":"https://pith.science/pith/LEONA3UKVOBJYLSQY6SK2EZW46/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LEONA3UKVOBJYLSQY6SK2EZW46/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":"2026-08-09T06:32:28Z","links":{"resolver":"https://pith.science/pith/LEONA3UKVOBJYLSQY6SK2EZW46","bundle":"https://pith.science/pith/LEONA3UKVOBJYLSQY6SK2EZW46/bundle.json","state":"https://pith.science/pith/LEONA3UKVOBJYLSQY6SK2EZW46/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LEONA3UKVOBJYLSQY6SK2EZW46/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:LEONA3UKVOBJYLSQY6SK2EZW46","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":"0324ddb220941a97ac398aa870cd05d4df79e73b5bdbebd7500e7220c0c0fb59","cross_cats_sorted":["cs.SD","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-19T08:09:58Z","title_canon_sha256":"4a5ee03c0ef665060b069b16b7cf95fa8b2d09c88fe9f297fd8f7569618b576f"},"schema_version":"1.0","source":{"id":"2005.09271","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.09271","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"arxiv_version","alias_value":"2005.09271v1","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.09271","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"pith_short_12","alias_value":"LEONA3UKVOBJ","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"pith_short_16","alias_value":"LEONA3UKVOBJYLSQ","created_at":"2026-07-05T01:03:48Z"},{"alias_kind":"pith_short_8","alias_value":"LEONA3UK","created_at":"2026-07-05T01:03:48Z"}],"graph_snapshots":[{"event_id":"sha256:0926629dad40d2fae509c4bc3bc5e929b44a1ded2da12f11110367dfbe159b52","target":"graph","created_at":"2026-07-05T01:03:48Z","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/2005.09271/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accent conversion (AC) transforms a non-native speaker's accent into a native accent while maintaining the speaker's voice timbre. In this paper, we propose approaches to improving accent conversion applicability, as well as quality. First of all, we assume no reference speech is available at the conversion stage, and hence we employ an end-to-end text-to-speech system that is trained on native speech to generate native reference speech. To improve the quality and accent of the converted speech, we introduce reference encoders which make us capable of utilizing multi-source information. This i","authors_text":"Benlai Tang, Hao Huang, Kang Wang, Wei Li, Wenjie Li, Xiang Yin, Yushi Zhao, Yuxuan Wang, Zejun Ma","cross_cats":["cs.SD","eess.AS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-19T08:09:58Z","title":"Improving Accent Conversion with Reference Encoder and End-To-End Text-To-Speech"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.09271","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:f5ddf101b3fa5c3ec2702191b79dc6b8975329d38cf98bacd11146ed0ba334bc","target":"record","created_at":"2026-07-05T01:03:48Z","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":"0324ddb220941a97ac398aa870cd05d4df79e73b5bdbebd7500e7220c0c0fb59","cross_cats_sorted":["cs.SD","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-19T08:09:58Z","title_canon_sha256":"4a5ee03c0ef665060b069b16b7cf95fa8b2d09c88fe9f297fd8f7569618b576f"},"schema_version":"1.0","source":{"id":"2005.09271","kind":"arxiv","version":1}},"canonical_sha256":"591cd06e8aab829c2e50c7a4ad1336e79dd1c197ec384d5ca109ba34d6fbd760","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"591cd06e8aab829c2e50c7a4ad1336e79dd1c197ec384d5ca109ba34d6fbd760","first_computed_at":"2026-07-05T01:03:48.688888Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:03:48.688888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qr8mgIQ6vUs6csJhs5b26xhOyCulGExL+4mg3zqex13Lz1A5HFzwQQOg/WdWI8eq8VIaJwOy/mggEMfeXHIiBg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:03:48.689348Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.09271","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f5ddf101b3fa5c3ec2702191b79dc6b8975329d38cf98bacd11146ed0ba334bc","sha256:0926629dad40d2fae509c4bc3bc5e929b44a1ded2da12f11110367dfbe159b52"],"state_sha256":"289fdfa6e95e17c6112cf9ed258fe83a0b2c8014a5d9d7c99ed948ab05c23502"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L4aACYBjG+U6o1hJr03AqzG/wPW9Qt4fPHuAcp2Edk8/A4QeCPQv6X5Eu8w2u/b4OcGqMwEi/GNqZ+0aSkG6AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T06:32:28.865475Z","bundle_sha256":"4f5cafbb555689ed74d97baa91becac40fc281f28bee6daa5c1fd7ae8d655687"}}