{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:4B4JRAXF2NIUGZG7GSIKJTX5VX","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":"b324eb796613b50898fe6e4a68659a74979d03343c6858244a2273499001fd4d","cross_cats_sorted":["cs.CL","cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2021-05-28T14:26:40Z","title_canon_sha256":"1ee14c795386f980bdd6e53b80c49f9a09303e653a768ce08627241c90cdf415"},"schema_version":"1.0","source":{"id":"2105.13871","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.13871","created_at":"2026-07-05T02:44:12Z"},{"alias_kind":"arxiv_version","alias_value":"2105.13871v1","created_at":"2026-07-05T02:44:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.13871","created_at":"2026-07-05T02:44:12Z"},{"alias_kind":"pith_short_12","alias_value":"4B4JRAXF2NIU","created_at":"2026-07-05T02:44:12Z"},{"alias_kind":"pith_short_16","alias_value":"4B4JRAXF2NIUGZG7","created_at":"2026-07-05T02:44:12Z"},{"alias_kind":"pith_short_8","alias_value":"4B4JRAXF","created_at":"2026-07-05T02:44:12Z"}],"graph_snapshots":[{"event_id":"sha256:3d3d7b49d22baf6839cb5aed53b237be4ea2112262a4e4e9bb9cf9ee10cdef55","target":"graph","created_at":"2026-07-05T02:44:12Z","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/2105.13871/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Singing voice conversion (SVC) is one promising technique which can enrich the way of human-computer interaction by endowing a computer the ability to produce high-fidelity and expressive singing voice. In this paper, we propose DiffSVC, an SVC system based on denoising diffusion probabilistic model. DiffSVC uses phonetic posteriorgrams (PPGs) as content features. A denoising module is trained in DiffSVC, which takes destroyed mel spectrogram produced by the diffusion/forward process and its corresponding step information as input to predict the added Gaussian noise. We use PPGs, fundamental f","authors_text":"Dan Su, Helen Meng, Songxiang Liu, Yuewen Cao","cross_cats":["cs.CL","cs.SD"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2021-05-28T14:26:40Z","title":"DiffSVC: A Diffusion Probabilistic Model for Singing Voice Conversion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.13871","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:d378638fcd5703acda8b21adaa2e6af676dff98452ffa3894bbd7afcefa6a2bb","target":"record","created_at":"2026-07-05T02:44:12Z","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":"b324eb796613b50898fe6e4a68659a74979d03343c6858244a2273499001fd4d","cross_cats_sorted":["cs.CL","cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2021-05-28T14:26:40Z","title_canon_sha256":"1ee14c795386f980bdd6e53b80c49f9a09303e653a768ce08627241c90cdf415"},"schema_version":"1.0","source":{"id":"2105.13871","kind":"arxiv","version":1}},"canonical_sha256":"e0789882e5d3514364df3490a4cefdadc9aa03312ba45efde30dd73b56ca0919","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e0789882e5d3514364df3490a4cefdadc9aa03312ba45efde30dd73b56ca0919","first_computed_at":"2026-07-05T02:44:12.279321Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:44:12.279321Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JvYwh99SAdiVbDTdKzYZqXhj5ZkbDZtrPfSNm9tUa+J7c+b43FFimkNfpemYlp6iyvqHgPNLOZ8wZ2G8WMdkDg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:44:12.279761Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.13871","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d378638fcd5703acda8b21adaa2e6af676dff98452ffa3894bbd7afcefa6a2bb","sha256:3d3d7b49d22baf6839cb5aed53b237be4ea2112262a4e4e9bb9cf9ee10cdef55"],"state_sha256":"db88c1ccf19e2b7801f387a7fb7d3ee7fd19eae296d6f9cc0afb962cf7fa57bc"}