{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:GTL2DDBG7FP4RWEJR2ITEG4GMU","short_pith_number":"pith:GTL2DDBG","canonical_record":{"source":{"id":"1903.07398","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-03-11T18:18:38Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"148a0dc6c9d43b9cf62750b41e604d38b7adc1c6e3fb93f145c4f143544d5c82","abstract_canon_sha256":"f6f67e7f739a302c6200eb368f29afc7177193a90297402c2a8e986c74b8d5fa"},"schema_version":"1.0"},"canonical_sha256":"34d7a18c26f95fc8d8898e91321b866528fde4b6de5975df7e7e6bf2363219fc","source":{"kind":"arxiv","id":"1903.07398","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.07398","created_at":"2026-05-17T23:51:01Z"},{"alias_kind":"arxiv_version","alias_value":"1903.07398v1","created_at":"2026-05-17T23:51:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.07398","created_at":"2026-05-17T23:51:01Z"},{"alias_kind":"pith_short_12","alias_value":"GTL2DDBG7FP4","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"GTL2DDBG7FP4RWEJ","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"GTL2DDBG","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:GTL2DDBG7FP4RWEJR2ITEG4GMU","target":"record","payload":{"canonical_record":{"source":{"id":"1903.07398","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-03-11T18:18:38Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"148a0dc6c9d43b9cf62750b41e604d38b7adc1c6e3fb93f145c4f143544d5c82","abstract_canon_sha256":"f6f67e7f739a302c6200eb368f29afc7177193a90297402c2a8e986c74b8d5fa"},"schema_version":"1.0"},"canonical_sha256":"34d7a18c26f95fc8d8898e91321b866528fde4b6de5975df7e7e6bf2363219fc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:01.521419Z","signature_b64":"b5EVtUSWxwesM9OrsS2Q+JPtGyiU3cDbIR+OpaYKXbEcW/72UmdR2E4qZt1C0/mLgsNAgAik2gbqwlKkHN3lAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34d7a18c26f95fc8d8898e91321b866528fde4b6de5975df7e7e6bf2363219fc","last_reissued_at":"2026-05-17T23:51:01.520754Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:01.520754Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.07398","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":"2026-05-17T23:51:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3O3/M0JVZXiP90TGe1MkMLLje4MOPlOydYt8mkPP39iPRqVJqQEbjcar8DSvT+teIOIng6zx0dMfwb84IcwYAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:37:08.537137Z"},"content_sha256":"69ed7258eef207bd1edd8be233f98c0b92c99cf3ce661efcac0faa07ec3a8074","schema_version":"1.0","event_id":"sha256:69ed7258eef207bd1edd8be233f98c0b92c99cf3ce661efcac0faa07ec3a8074"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:GTL2DDBG7FP4RWEJR2ITEG4GMU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deep Text-to-Speech System with Seq2Seq Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"cs.CL","authors_text":"Gary Wang","submitted_at":"2019-03-11T18:18:38Z","abstract_excerpt":"Recent trends in neural network based text-to-speech/speech synthesis pipelines have employed recurrent Seq2seq architectures that can synthesize realistic sounding speech directly from text characters. These systems however have complex architectures and takes a substantial amount of time to train. We introduce several modifications to these Seq2seq architectures that allow for faster training time, and also allows us to reduce the complexity of the model architecture at the same time. We show that our proposed model can achieve attention alignment much faster than previous architectures and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.07398","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":"2026-05-17T23:51:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XYLBH41CFrWWcWlgfT3wof6D+fORC1ne+kfFH4h+hP55+3piQAVSk2LW08iFot4DthqGJn/oLDE3Fh6gEOrRDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:37:08.537821Z"},"content_sha256":"eb79af1a326b0f9800ef0c32aab7d0e19a83254f1d707312c9ab918713085bb6","schema_version":"1.0","event_id":"sha256:eb79af1a326b0f9800ef0c32aab7d0e19a83254f1d707312c9ab918713085bb6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GTL2DDBG7FP4RWEJR2ITEG4GMU/bundle.json","state_url":"https://pith.science/pith/GTL2DDBG7FP4RWEJR2ITEG4GMU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GTL2DDBG7FP4RWEJR2ITEG4GMU/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":"2026-05-31T06:37:08Z","links":{"resolver":"https://pith.science/pith/GTL2DDBG7FP4RWEJR2ITEG4GMU","bundle":"https://pith.science/pith/GTL2DDBG7FP4RWEJR2ITEG4GMU/bundle.json","state":"https://pith.science/pith/GTL2DDBG7FP4RWEJR2ITEG4GMU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GTL2DDBG7FP4RWEJR2ITEG4GMU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:GTL2DDBG7FP4RWEJR2ITEG4GMU","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":"f6f67e7f739a302c6200eb368f29afc7177193a90297402c2a8e986c74b8d5fa","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-03-11T18:18:38Z","title_canon_sha256":"148a0dc6c9d43b9cf62750b41e604d38b7adc1c6e3fb93f145c4f143544d5c82"},"schema_version":"1.0","source":{"id":"1903.07398","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.07398","created_at":"2026-05-17T23:51:01Z"},{"alias_kind":"arxiv_version","alias_value":"1903.07398v1","created_at":"2026-05-17T23:51:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.07398","created_at":"2026-05-17T23:51:01Z"},{"alias_kind":"pith_short_12","alias_value":"GTL2DDBG7FP4","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"GTL2DDBG7FP4RWEJ","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"GTL2DDBG","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:eb79af1a326b0f9800ef0c32aab7d0e19a83254f1d707312c9ab918713085bb6","target":"graph","created_at":"2026-05-17T23:51:01Z","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":"Recent trends in neural network based text-to-speech/speech synthesis pipelines have employed recurrent Seq2seq architectures that can synthesize realistic sounding speech directly from text characters. These systems however have complex architectures and takes a substantial amount of time to train. We introduce several modifications to these Seq2seq architectures that allow for faster training time, and also allows us to reduce the complexity of the model architecture at the same time. We show that our proposed model can achieve attention alignment much faster than previous architectures and ","authors_text":"Gary Wang","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-03-11T18:18:38Z","title":"Deep Text-to-Speech System with Seq2Seq Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.07398","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":"sha256:69ed7258eef207bd1edd8be233f98c0b92c99cf3ce661efcac0faa07ec3a8074","target":"record","created_at":"2026-05-17T23:51:01Z","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":"f6f67e7f739a302c6200eb368f29afc7177193a90297402c2a8e986c74b8d5fa","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-03-11T18:18:38Z","title_canon_sha256":"148a0dc6c9d43b9cf62750b41e604d38b7adc1c6e3fb93f145c4f143544d5c82"},"schema_version":"1.0","source":{"id":"1903.07398","kind":"arxiv","version":1}},"canonical_sha256":"34d7a18c26f95fc8d8898e91321b866528fde4b6de5975df7e7e6bf2363219fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34d7a18c26f95fc8d8898e91321b866528fde4b6de5975df7e7e6bf2363219fc","first_computed_at":"2026-05-17T23:51:01.520754Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:01.520754Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b5EVtUSWxwesM9OrsS2Q+JPtGyiU3cDbIR+OpaYKXbEcW/72UmdR2E4qZt1C0/mLgsNAgAik2gbqwlKkHN3lAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:01.521419Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.07398","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69ed7258eef207bd1edd8be233f98c0b92c99cf3ce661efcac0faa07ec3a8074","sha256:eb79af1a326b0f9800ef0c32aab7d0e19a83254f1d707312c9ab918713085bb6"],"state_sha256":"eabc712eba41aaa8bed9712e68b8ad01b83b2bdc2096ca3bc4a70c66e59366ee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rHlgmbbs/sT4iY9d9BD1OTGGy7FMkMprYEjyhrhitFOKrZQUTJ6viJMwKf0OJOTniLaDX0Vs+oriyKGWEDL9Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T06:37:08.541547Z","bundle_sha256":"4e60b51b42e4310c7fadfeab0bf8eecb98a97ac6f2ba35aa12e316b775ddc6c7"}}