{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:MORQMFTRM4YRBGFZUWTKUT3JCT","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":"e092d6606674a34e83b62568159ee4125f2440d7f4d7cae1cf8a1c382d426c34","cross_cats_sorted":["cs.AI","cs.LG","cs.MM","cs.NE","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2019-02-09T07:49:42Z","title_canon_sha256":"5a6371a9f5c63cbae32e5f2744d33ab5d604ad66d6bdfa23715cacb83a6b87cc"},"schema_version":"1.0","source":{"id":"1902.03389","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.03389","created_at":"2026-05-17T23:54:20Z"},{"alias_kind":"arxiv_version","alias_value":"1902.03389v1","created_at":"2026-05-17T23:54:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.03389","created_at":"2026-05-17T23:54:20Z"},{"alias_kind":"pith_short_12","alias_value":"MORQMFTRM4YR","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"MORQMFTRM4YRBGFZ","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"MORQMFTR","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:146f6db9ceb27c095913fcbe928c74e6b11ca2ee756011b8a91fa4947e429624","target":"graph","created_at":"2026-05-17T23:54:20Z","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":"This paper proposes a generative moment matching network (GMMN)-based post-filter that provides inter-utterance pitch variation for deep neural network (DNN)-based singing voice synthesis. The natural pitch variation of a human singing voice leads to a richer musical experience and is used in double-tracking, a recording method in which two performances of the same phrase are recorded and mixed to create a richer, layered sound. However, singing voices synthesized using conventional DNN-based methods never vary because the synthesis process is deterministic and only one waveform is synthesized","authors_text":"Hiroki Tamaru, Hiroshi Saruwatari, Shinnosuke Takamichi, Tomoki Koriyama, Yuki Saito","cross_cats":["cs.AI","cs.LG","cs.MM","cs.NE","eess.AS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2019-02-09T07:49:42Z","title":"Generative Moment Matching Network-based Random Modulation Post-filter for DNN-based Singing Voice Synthesis and Neural Double-tracking"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.03389","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":"sha256:0d12d7aa38e084a946f5f5a86cc052954e21cd6b5fbaab77d0d9c2b149824e70","target":"record","created_at":"2026-05-17T23:54:20Z","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":"e092d6606674a34e83b62568159ee4125f2440d7f4d7cae1cf8a1c382d426c34","cross_cats_sorted":["cs.AI","cs.LG","cs.MM","cs.NE","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2019-02-09T07:49:42Z","title_canon_sha256":"5a6371a9f5c63cbae32e5f2744d33ab5d604ad66d6bdfa23715cacb83a6b87cc"},"schema_version":"1.0","source":{"id":"1902.03389","kind":"arxiv","version":1}},"canonical_sha256":"63a306167167311098b9a5a6aa4f6914d3a0419d19a94fe15781ba03b6705f33","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63a306167167311098b9a5a6aa4f6914d3a0419d19a94fe15781ba03b6705f33","first_computed_at":"2026-05-17T23:54:20.999019Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:20.999019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XRuBq+0onvbKTgdKBvhvyFzGMy+jr6VSrARVN7ZPtt+fwymNvDU5LLVtA8l4X0JGMhEogqRMNyZyHasTm5psCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:20.999656Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.03389","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d12d7aa38e084a946f5f5a86cc052954e21cd6b5fbaab77d0d9c2b149824e70","sha256:146f6db9ceb27c095913fcbe928c74e6b11ca2ee756011b8a91fa4947e429624"],"state_sha256":"0ff6d7d38286901a12f4269749f6b23adf920a591415ce3ad46b726cd09ddf87"}