{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:GDSIBJQO7MH4CYEDKOCU7AJZQ2","short_pith_number":"pith:GDSIBJQO","canonical_record":{"source":{"id":"1807.10941","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2018-07-28T14:40:59Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"10c60ca368b2b44c415d9fb007456b36fa765e5106bcba1a847135485dbb2a4c","abstract_canon_sha256":"0c4d2fd75966a33d63cdabc57b2c1d1a90d350e5e89f62a0cf0f0ddbf1f1f0eb"},"schema_version":"1.0"},"canonical_sha256":"30e480a60efb0fc1608353854f813986b11cd4adb35a2213873b607790939342","source":{"kind":"arxiv","id":"1807.10941","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.10941","created_at":"2026-05-18T00:09:34Z"},{"alias_kind":"arxiv_version","alias_value":"1807.10941v1","created_at":"2026-05-18T00:09:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.10941","created_at":"2026-05-18T00:09:34Z"},{"alias_kind":"pith_short_12","alias_value":"GDSIBJQO7MH4","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GDSIBJQO7MH4CYED","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GDSIBJQO","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:GDSIBJQO7MH4CYEDKOCU7AJZQ2","target":"record","payload":{"canonical_record":{"source":{"id":"1807.10941","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2018-07-28T14:40:59Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"10c60ca368b2b44c415d9fb007456b36fa765e5106bcba1a847135485dbb2a4c","abstract_canon_sha256":"0c4d2fd75966a33d63cdabc57b2c1d1a90d350e5e89f62a0cf0f0ddbf1f1f0eb"},"schema_version":"1.0"},"canonical_sha256":"30e480a60efb0fc1608353854f813986b11cd4adb35a2213873b607790939342","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:34.947479Z","signature_b64":"MmWomRjKtaVjQLzGDx2hETJiwsyHjW4HxbMHP4gp7bwJEz5VnGWoHeWO9kJGw3n4wsl2c1RdflS8NZDiJNBWAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30e480a60efb0fc1608353854f813986b11cd4adb35a2213873b607790939342","last_reissued_at":"2026-05-18T00:09:34.947097Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:34.947097Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.10941","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":"2026-05-18T00:09:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CJWYlG0HB0vUsG7ykY2FZ60rfiUjvX17Eti2RabrcxfR0y0hEr7pYabrjp7Pk0sUZ61eJEmOxIva1icmIYJcDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:35:43.053965Z"},"content_sha256":"a61003435a030b88a7462664c46853f6cede473dc34f9419814b822b628e9124","schema_version":"1.0","event_id":"sha256:a61003435a030b88a7462664c46853f6cede473dc34f9419814b822b628e9124"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:GDSIBJQO7MH4CYEDKOCU7AJZQ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analysing Shortcomings of Statistical Parametric Speech Synthesis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SD"],"primary_cat":"eess.AS","authors_text":"Gilles Degottex, Gustav Eje Henter, Simon King, Thomas Merritt","submitted_at":"2018-07-28T14:40:59Z","abstract_excerpt":"Output from statistical parametric speech synthesis (SPSS) remains noticeably worse than natural speech recordings in terms of quality, naturalness, speaker similarity, and intelligibility in noise. There are many hypotheses regarding the origins of these shortcomings, but these hypotheses are often kept vague and presented without empirical evidence that could confirm and quantify how a specific shortcoming contributes to imperfections in the synthesised speech. Throughout speech synthesis literature, surprisingly little work is dedicated towards identifying the perceptually most important pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.10941","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":"2026-05-18T00:09:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tKyWAH8nHJJ29SW+sLpXJPmbwnhx2/AA2iBasqRLdGU+I+IM9GvQVX+ZksT9ZPpFM0SII7pEFH1i5vOi+RyBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:35:43.054550Z"},"content_sha256":"a85ecc7b9c5092bda3d3b6a98c474304cc997d6e4bad65e303e177cc837cd770","schema_version":"1.0","event_id":"sha256:a85ecc7b9c5092bda3d3b6a98c474304cc997d6e4bad65e303e177cc837cd770"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GDSIBJQO7MH4CYEDKOCU7AJZQ2/bundle.json","state_url":"https://pith.science/pith/GDSIBJQO7MH4CYEDKOCU7AJZQ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GDSIBJQO7MH4CYEDKOCU7AJZQ2/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":"2026-05-30T14:35:43Z","links":{"resolver":"https://pith.science/pith/GDSIBJQO7MH4CYEDKOCU7AJZQ2","bundle":"https://pith.science/pith/GDSIBJQO7MH4CYEDKOCU7AJZQ2/bundle.json","state":"https://pith.science/pith/GDSIBJQO7MH4CYEDKOCU7AJZQ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GDSIBJQO7MH4CYEDKOCU7AJZQ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GDSIBJQO7MH4CYEDKOCU7AJZQ2","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":"0c4d2fd75966a33d63cdabc57b2c1d1a90d350e5e89f62a0cf0f0ddbf1f1f0eb","cross_cats_sorted":["cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2018-07-28T14:40:59Z","title_canon_sha256":"10c60ca368b2b44c415d9fb007456b36fa765e5106bcba1a847135485dbb2a4c"},"schema_version":"1.0","source":{"id":"1807.10941","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.10941","created_at":"2026-05-18T00:09:34Z"},{"alias_kind":"arxiv_version","alias_value":"1807.10941v1","created_at":"2026-05-18T00:09:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.10941","created_at":"2026-05-18T00:09:34Z"},{"alias_kind":"pith_short_12","alias_value":"GDSIBJQO7MH4","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GDSIBJQO7MH4CYED","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GDSIBJQO","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:a85ecc7b9c5092bda3d3b6a98c474304cc997d6e4bad65e303e177cc837cd770","target":"graph","created_at":"2026-05-18T00:09:34Z","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":"Output from statistical parametric speech synthesis (SPSS) remains noticeably worse than natural speech recordings in terms of quality, naturalness, speaker similarity, and intelligibility in noise. There are many hypotheses regarding the origins of these shortcomings, but these hypotheses are often kept vague and presented without empirical evidence that could confirm and quantify how a specific shortcoming contributes to imperfections in the synthesised speech. Throughout speech synthesis literature, surprisingly little work is dedicated towards identifying the perceptually most important pr","authors_text":"Gilles Degottex, Gustav Eje Henter, Simon King, Thomas Merritt","cross_cats":["cs.SD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2018-07-28T14:40:59Z","title":"Analysing Shortcomings of Statistical Parametric Speech Synthesis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.10941","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:a61003435a030b88a7462664c46853f6cede473dc34f9419814b822b628e9124","target":"record","created_at":"2026-05-18T00:09:34Z","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":"0c4d2fd75966a33d63cdabc57b2c1d1a90d350e5e89f62a0cf0f0ddbf1f1f0eb","cross_cats_sorted":["cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2018-07-28T14:40:59Z","title_canon_sha256":"10c60ca368b2b44c415d9fb007456b36fa765e5106bcba1a847135485dbb2a4c"},"schema_version":"1.0","source":{"id":"1807.10941","kind":"arxiv","version":1}},"canonical_sha256":"30e480a60efb0fc1608353854f813986b11cd4adb35a2213873b607790939342","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30e480a60efb0fc1608353854f813986b11cd4adb35a2213873b607790939342","first_computed_at":"2026-05-18T00:09:34.947097Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:34.947097Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MmWomRjKtaVjQLzGDx2hETJiwsyHjW4HxbMHP4gp7bwJEz5VnGWoHeWO9kJGw3n4wsl2c1RdflS8NZDiJNBWAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:34.947479Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.10941","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a61003435a030b88a7462664c46853f6cede473dc34f9419814b822b628e9124","sha256:a85ecc7b9c5092bda3d3b6a98c474304cc997d6e4bad65e303e177cc837cd770"],"state_sha256":"4d8a79f9929f085558143b165bf32dd304bf7ef5619a83a6998aea3238ec5d43"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SePguCswczcpNRRb9cgZiTMlgDKPlOzqGRJOucuZHzAzCu1HmhUpTRPUx+mGJJWOu7mHGSjirHfsfusFzXPRDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T14:35:43.057418Z","bundle_sha256":"c8334607b575b52b50c1981af6dae83ca4645450f5c798311c54defc21b045c6"}}