{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:OGBQ7CDKPTZ27RVDI2BJWMBTCA","short_pith_number":"pith:OGBQ7CDK","canonical_record":{"source":{"id":"2109.12787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2021-09-27T04:12:53Z","cross_cats_sorted":["eess.AS"],"title_canon_sha256":"cb629cbb7e814f5069a35c6f3950ba61e15be062e14c635721ed13295268022b","abstract_canon_sha256":"76d52f931961e9327aeb62799dced1786b58b9facbe1e7ab562c73466b3ea862"},"schema_version":"1.0"},"canonical_sha256":"71830f886a7cf3afc6a346829b30331000cf516ecafeec3ae8951eba3c93d005","source":{"kind":"arxiv","id":"2109.12787","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.12787","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"arxiv_version","alias_value":"2109.12787v1","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.12787","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"pith_short_12","alias_value":"OGBQ7CDKPTZ2","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"pith_short_16","alias_value":"OGBQ7CDKPTZ27RVD","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"pith_short_8","alias_value":"OGBQ7CDK","created_at":"2026-07-05T09:26:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:OGBQ7CDKPTZ27RVDI2BJWMBTCA","target":"record","payload":{"canonical_record":{"source":{"id":"2109.12787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2021-09-27T04:12:53Z","cross_cats_sorted":["eess.AS"],"title_canon_sha256":"cb629cbb7e814f5069a35c6f3950ba61e15be062e14c635721ed13295268022b","abstract_canon_sha256":"76d52f931961e9327aeb62799dced1786b58b9facbe1e7ab562c73466b3ea862"},"schema_version":"1.0"},"canonical_sha256":"71830f886a7cf3afc6a346829b30331000cf516ecafeec3ae8951eba3c93d005","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:26:11.100933Z","signature_b64":"yHIBuAKZkyNHTi6v5n/veyHB0u1PxPf6KrlIaxTHradOzGq5+JXJY5YBMZ33XIdC1T/cfYUms73qBDgz6UdmAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"71830f886a7cf3afc6a346829b30331000cf516ecafeec3ae8951eba3c93d005","last_reissued_at":"2026-07-05T09:26:11.100412Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:26:11.100412Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.12787","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":"2026-07-05T09:26:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Pcxmww1puxAEB39dpP42FP/W8to0qMkwipSQqptMd1a0v+CBPYwU3qTCIsYo81DGlIgc+SGIykkLLtvR8LjAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T10:40:17.841698Z"},"content_sha256":"f27ddc34e8d1fa5a54ca406f4f96e9a3053e80e8a3d422b23115f8e428f1dc12","schema_version":"1.0","event_id":"sha256:f27ddc34e8d1fa5a54ca406f4f96e9a3053e80e8a3d422b23115f8e428f1dc12"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:OGBQ7CDKPTZ27RVDI2BJWMBTCA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Emotional Speech Synthesis for Companion Robot to Imitate Professional Caregiver Speech","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.AS"],"primary_cat":"cs.RO","authors_text":"Daichi Sugawara, Eriko Ankyu, Etsuko T. Harada, Kenji Nagamatsu, Qinghua Sun, Ryuta Takawaki, Takeshi Homma, Takuya Fujioka","submitted_at":"2021-09-27T04:12:53Z","abstract_excerpt":"When people try to influence others to do something, they subconsciously adjust their speech to include appropriate emotional information. In order for a robot to influence people in the same way, the robot should be able to imitate the range of human emotions when speaking. To achieve this, we propose a speech synthesis method for imitating the emotional states in human speech. In contrast to previous methods, the advantage of our method is that it requires less manual effort to adjust the emotion of the synthesized speech. Our synthesizer receives an emotion vector to characterize the emotio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.12787","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/2109.12787/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":"2026-07-05T09:26:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8mmDqA31aQqDFieA3nrHlEUWo9odK658LEY1iUc9lP6/3Wr96h8eX760iMMgwL8qD+VE0q/B4yyYs+PDx9MLDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T10:40:17.842189Z"},"content_sha256":"8f3e4c499c213df46128a15329bbdf41f473edb8b30ac64c0fd2dfd53926cc08","schema_version":"1.0","event_id":"sha256:8f3e4c499c213df46128a15329bbdf41f473edb8b30ac64c0fd2dfd53926cc08"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OGBQ7CDKPTZ27RVDI2BJWMBTCA/bundle.json","state_url":"https://pith.science/pith/OGBQ7CDKPTZ27RVDI2BJWMBTCA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OGBQ7CDKPTZ27RVDI2BJWMBTCA/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":"2026-08-05T10:40:17Z","links":{"resolver":"https://pith.science/pith/OGBQ7CDKPTZ27RVDI2BJWMBTCA","bundle":"https://pith.science/pith/OGBQ7CDKPTZ27RVDI2BJWMBTCA/bundle.json","state":"https://pith.science/pith/OGBQ7CDKPTZ27RVDI2BJWMBTCA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OGBQ7CDKPTZ27RVDI2BJWMBTCA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:OGBQ7CDKPTZ27RVDI2BJWMBTCA","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":"76d52f931961e9327aeb62799dced1786b58b9facbe1e7ab562c73466b3ea862","cross_cats_sorted":["eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2021-09-27T04:12:53Z","title_canon_sha256":"cb629cbb7e814f5069a35c6f3950ba61e15be062e14c635721ed13295268022b"},"schema_version":"1.0","source":{"id":"2109.12787","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.12787","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"arxiv_version","alias_value":"2109.12787v1","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.12787","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"pith_short_12","alias_value":"OGBQ7CDKPTZ2","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"pith_short_16","alias_value":"OGBQ7CDKPTZ27RVD","created_at":"2026-07-05T09:26:11Z"},{"alias_kind":"pith_short_8","alias_value":"OGBQ7CDK","created_at":"2026-07-05T09:26:11Z"}],"graph_snapshots":[{"event_id":"sha256:8f3e4c499c213df46128a15329bbdf41f473edb8b30ac64c0fd2dfd53926cc08","target":"graph","created_at":"2026-07-05T09:26:11Z","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/2109.12787/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"When people try to influence others to do something, they subconsciously adjust their speech to include appropriate emotional information. In order for a robot to influence people in the same way, the robot should be able to imitate the range of human emotions when speaking. To achieve this, we propose a speech synthesis method for imitating the emotional states in human speech. In contrast to previous methods, the advantage of our method is that it requires less manual effort to adjust the emotion of the synthesized speech. Our synthesizer receives an emotion vector to characterize the emotio","authors_text":"Daichi Sugawara, Eriko Ankyu, Etsuko T. Harada, Kenji Nagamatsu, Qinghua Sun, Ryuta Takawaki, Takeshi Homma, Takuya Fujioka","cross_cats":["eess.AS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2021-09-27T04:12:53Z","title":"Emotional Speech Synthesis for Companion Robot to Imitate Professional Caregiver Speech"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.12787","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:f27ddc34e8d1fa5a54ca406f4f96e9a3053e80e8a3d422b23115f8e428f1dc12","target":"record","created_at":"2026-07-05T09:26:11Z","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":"76d52f931961e9327aeb62799dced1786b58b9facbe1e7ab562c73466b3ea862","cross_cats_sorted":["eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2021-09-27T04:12:53Z","title_canon_sha256":"cb629cbb7e814f5069a35c6f3950ba61e15be062e14c635721ed13295268022b"},"schema_version":"1.0","source":{"id":"2109.12787","kind":"arxiv","version":1}},"canonical_sha256":"71830f886a7cf3afc6a346829b30331000cf516ecafeec3ae8951eba3c93d005","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"71830f886a7cf3afc6a346829b30331000cf516ecafeec3ae8951eba3c93d005","first_computed_at":"2026-07-05T09:26:11.100412Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:26:11.100412Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yHIBuAKZkyNHTi6v5n/veyHB0u1PxPf6KrlIaxTHradOzGq5+JXJY5YBMZ33XIdC1T/cfYUms73qBDgz6UdmAg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:26:11.100933Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.12787","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f27ddc34e8d1fa5a54ca406f4f96e9a3053e80e8a3d422b23115f8e428f1dc12","sha256:8f3e4c499c213df46128a15329bbdf41f473edb8b30ac64c0fd2dfd53926cc08"],"state_sha256":"1b60dcf4f3d9bad06104fac422a36aeaa0ee5c4b3d9fe9af6f26094c33a6e2d3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VWCq8fGpfECszJsxfkliFp0Es4nGELwNn5vzcf13VQ9r9Oa0CLSaYsEayVOTHKdu64jgDUy4oyzRlfZ5kg3rCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T10:40:17.846872Z","bundle_sha256":"0e61da3d545e1132448a7d2cb4015af8e40de90490ec49129fc4d4742edd3e0c"}}