{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:DCH7B4YDGOTE2K6PR5HWPB4PGW","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":"b34ec41e568d911a0890c1ce20d62ea5baf2ca14d593a7efcf1cc283fd61fef5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2026-06-04T09:00:13Z","title_canon_sha256":"11733b89c5b2e0bb56c48d25422fbee037b564d877ba1aa77bc9d796aeb1f817"},"schema_version":"1.0","source":{"id":"2606.05892","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.05892","created_at":"2026-06-05T01:15:07Z"},{"alias_kind":"arxiv_version","alias_value":"2606.05892v1","created_at":"2026-06-05T01:15:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.05892","created_at":"2026-06-05T01:15:07Z"},{"alias_kind":"pith_short_12","alias_value":"DCH7B4YDGOTE","created_at":"2026-06-05T01:15:07Z"},{"alias_kind":"pith_short_16","alias_value":"DCH7B4YDGOTE2K6P","created_at":"2026-06-05T01:15:07Z"},{"alias_kind":"pith_short_8","alias_value":"DCH7B4YD","created_at":"2026-06-05T01:15:07Z"}],"graph_snapshots":[{"event_id":"sha256:6e6145d6c1be131f4c3f13b3aa697da8348f8ca43421f6dc3bd535bce967a0a7","target":"graph","created_at":"2026-06-05T01:15:07Z","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/2606.05892/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Neural speech codecs are key to speech transmission and storage, but most use uniform quantization across frames, allocating the same bitrate regardless of content and wasting bits. We propose VoCodec, a low-bitrate streamable neural speech codec with voicing-driven quantization that assigns higher bitrate to voiced frames and lower bitrate to unvoiced frames according to perceptual sensitivity. VoCodec embeds a voicing detector in a fully causal encoder-quantizer-decoder neural coding framework, using residual scalar-vector quantization for voiced frames and simple scalar quantization for unv","authors_text":"Ji Wu, Li-Rong Dai, Rui-Chen Zheng, Xiao-Hang Jiang, Yang Ai, Zhen-Hua Ling","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2026-06-04T09:00:13Z","title":"VoCodec: A Low-bitrate Streamable Neural Speech Codec with Voicing-driven Quantization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.05892","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:facc3848982f11ab00a994fbdb695cab98a62b30a739ce653495135f1d006bb1","target":"record","created_at":"2026-06-05T01:15:07Z","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":"b34ec41e568d911a0890c1ce20d62ea5baf2ca14d593a7efcf1cc283fd61fef5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2026-06-04T09:00:13Z","title_canon_sha256":"11733b89c5b2e0bb56c48d25422fbee037b564d877ba1aa77bc9d796aeb1f817"},"schema_version":"1.0","source":{"id":"2606.05892","kind":"arxiv","version":1}},"canonical_sha256":"188ff0f30333a64d2bcf8f4f67878f35a8786042ddb1b07ca36bef462d88de42","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"188ff0f30333a64d2bcf8f4f67878f35a8786042ddb1b07ca36bef462d88de42","first_computed_at":"2026-06-05T01:15:07.070853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-05T01:15:07.070853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PT18RhAy42h+7JU42e3qm9DCRw99zq4sQrXM5qU1/q975NaEgmeij53yS6zIFd7GyBvEpv3SP7OXRIznH9shAA==","signature_status":"signed_v1","signed_at":"2026-06-05T01:15:07.071264Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.05892","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:facc3848982f11ab00a994fbdb695cab98a62b30a739ce653495135f1d006bb1","sha256:6e6145d6c1be131f4c3f13b3aa697da8348f8ca43421f6dc3bd535bce967a0a7"],"state_sha256":"faee960bec0c5dbf55bdda794846d069d5f3189d23fb2b510a7f8ac890e4d834"}