{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:Y35WSTEJJYDHXMWDW3W2E37ZJS","short_pith_number":"pith:Y35WSTEJ","canonical_record":{"source":{"id":"2304.08076","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"eess.AS","submitted_at":"2023-04-17T08:41:16Z","cross_cats_sorted":[],"title_canon_sha256":"d2eedb3efdc06c4ff703ffc0a29c985500d8d4c5ce04d3ad38ba8c499049e1a2","abstract_canon_sha256":"b22b4a76cda8bda6707ae9b4bd0215e1cc9a7c7751c4f37ac1397bb5b3fd25f8"},"schema_version":"1.0"},"canonical_sha256":"c6fb694c894e067bb2c3b6eda26ff94cbe562652a66575748c0095e67c80da3f","source":{"kind":"arxiv","id":"2304.08076","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.08076","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"arxiv_version","alias_value":"2304.08076v1","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.08076","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"pith_short_12","alias_value":"Y35WSTEJJYDH","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"pith_short_16","alias_value":"Y35WSTEJJYDHXMWD","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"pith_short_8","alias_value":"Y35WSTEJ","created_at":"2026-07-05T06:01:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:Y35WSTEJJYDHXMWDW3W2E37ZJS","target":"record","payload":{"canonical_record":{"source":{"id":"2304.08076","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"eess.AS","submitted_at":"2023-04-17T08:41:16Z","cross_cats_sorted":[],"title_canon_sha256":"d2eedb3efdc06c4ff703ffc0a29c985500d8d4c5ce04d3ad38ba8c499049e1a2","abstract_canon_sha256":"b22b4a76cda8bda6707ae9b4bd0215e1cc9a7c7751c4f37ac1397bb5b3fd25f8"},"schema_version":"1.0"},"canonical_sha256":"c6fb694c894e067bb2c3b6eda26ff94cbe562652a66575748c0095e67c80da3f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:01:39.024777Z","signature_b64":"52ep2GUFJoHOErmXuDXrdIEnMJGrSudN6z1mSC3Qp1m7MudskMoJIidcqZDJmO1M6ZuPLzxi+q1iLg4mXgvbDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6fb694c894e067bb2c3b6eda26ff94cbe562652a66575748c0095e67c80da3f","last_reissued_at":"2026-07-05T06:01:39.024240Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:01:39.024240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.08076","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":"2026-07-05T06:01:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O5SJlM15DS+9GybilkaNB7ELJO2JiOZUK8CreC5nkZY27r0YqMc0niAWBMmDP12jPIBd5E1FOT1++dBGE+N1DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:49:30.668585Z"},"content_sha256":"6958c4271ed4bcbf54df613d4d0eeb4cfbee1c3c29f6158404ec83a3c2b49f9a","schema_version":"1.0","event_id":"sha256:6958c4271ed4bcbf54df613d4d0eeb4cfbee1c3c29f6158404ec83a3c2b49f9a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:Y35WSTEJJYDHXMWDW3W2E37ZJS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Audio coding with unified noise shaping and phase contrast control","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"eess.AS","authors_text":"Byeongho Jo, Seungkwon Beack, Taejin Lee","submitted_at":"2023-04-17T08:41:16Z","abstract_excerpt":"Over the past decade, audio coding technology has seen standardization and the development of many frameworks incorporated with linear predictive coding (LPC). As LPC reduces information in the frequency domain, LP-based frequency-domain noise-shaping (FDNS) was previously proposed. To code transient signals effectively, FDNS with temporal noise shaping (TNS) has emerged. However, these mainly operated in the modified discrete cosine transform domain, which essentially accompanies time domain aliasing. In this paper, a unified noise-shaping (UNS) framework including FDNS and complex LPC-based "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.08076","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/2304.08076/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":"2026-07-05T06:01:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6IFu4jcOg5UHDkRnB5WJVkYLsGLbO4NOK1FpOy3vgPsN0Y/DnJdNo7p0XPyut0+pgwQCW4Qr5v/we5iNUtqcAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:49:30.669240Z"},"content_sha256":"63d7fdae7fccc7000ca28579c629a160c9606d53f5733c383a91815dbf0b42d9","schema_version":"1.0","event_id":"sha256:63d7fdae7fccc7000ca28579c629a160c9606d53f5733c383a91815dbf0b42d9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y35WSTEJJYDHXMWDW3W2E37ZJS/bundle.json","state_url":"https://pith.science/pith/Y35WSTEJJYDHXMWDW3W2E37ZJS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y35WSTEJJYDHXMWDW3W2E37ZJS/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":"2026-07-07T05:49:30Z","links":{"resolver":"https://pith.science/pith/Y35WSTEJJYDHXMWDW3W2E37ZJS","bundle":"https://pith.science/pith/Y35WSTEJJYDHXMWDW3W2E37ZJS/bundle.json","state":"https://pith.science/pith/Y35WSTEJJYDHXMWDW3W2E37ZJS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y35WSTEJJYDHXMWDW3W2E37ZJS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:Y35WSTEJJYDHXMWDW3W2E37ZJS","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":"b22b4a76cda8bda6707ae9b4bd0215e1cc9a7c7751c4f37ac1397bb5b3fd25f8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"eess.AS","submitted_at":"2023-04-17T08:41:16Z","title_canon_sha256":"d2eedb3efdc06c4ff703ffc0a29c985500d8d4c5ce04d3ad38ba8c499049e1a2"},"schema_version":"1.0","source":{"id":"2304.08076","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.08076","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"arxiv_version","alias_value":"2304.08076v1","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.08076","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"pith_short_12","alias_value":"Y35WSTEJJYDH","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"pith_short_16","alias_value":"Y35WSTEJJYDHXMWD","created_at":"2026-07-05T06:01:39Z"},{"alias_kind":"pith_short_8","alias_value":"Y35WSTEJ","created_at":"2026-07-05T06:01:39Z"}],"graph_snapshots":[{"event_id":"sha256:63d7fdae7fccc7000ca28579c629a160c9606d53f5733c383a91815dbf0b42d9","target":"graph","created_at":"2026-07-05T06:01:39Z","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/2304.08076/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Over the past decade, audio coding technology has seen standardization and the development of many frameworks incorporated with linear predictive coding (LPC). As LPC reduces information in the frequency domain, LP-based frequency-domain noise-shaping (FDNS) was previously proposed. To code transient signals effectively, FDNS with temporal noise shaping (TNS) has emerged. However, these mainly operated in the modified discrete cosine transform domain, which essentially accompanies time domain aliasing. In this paper, a unified noise-shaping (UNS) framework including FDNS and complex LPC-based ","authors_text":"Byeongho Jo, Seungkwon Beack, Taejin Lee","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"eess.AS","submitted_at":"2023-04-17T08:41:16Z","title":"Audio coding with unified noise shaping and phase contrast control"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.08076","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":"sha256:6958c4271ed4bcbf54df613d4d0eeb4cfbee1c3c29f6158404ec83a3c2b49f9a","target":"record","created_at":"2026-07-05T06:01:39Z","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":"b22b4a76cda8bda6707ae9b4bd0215e1cc9a7c7751c4f37ac1397bb5b3fd25f8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"eess.AS","submitted_at":"2023-04-17T08:41:16Z","title_canon_sha256":"d2eedb3efdc06c4ff703ffc0a29c985500d8d4c5ce04d3ad38ba8c499049e1a2"},"schema_version":"1.0","source":{"id":"2304.08076","kind":"arxiv","version":1}},"canonical_sha256":"c6fb694c894e067bb2c3b6eda26ff94cbe562652a66575748c0095e67c80da3f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6fb694c894e067bb2c3b6eda26ff94cbe562652a66575748c0095e67c80da3f","first_computed_at":"2026-07-05T06:01:39.024240Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:01:39.024240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"52ep2GUFJoHOErmXuDXrdIEnMJGrSudN6z1mSC3Qp1m7MudskMoJIidcqZDJmO1M6ZuPLzxi+q1iLg4mXgvbDg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:01:39.024777Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.08076","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6958c4271ed4bcbf54df613d4d0eeb4cfbee1c3c29f6158404ec83a3c2b49f9a","sha256:63d7fdae7fccc7000ca28579c629a160c9606d53f5733c383a91815dbf0b42d9"],"state_sha256":"87f0c2096f1d9f924e513ca89aae3b1b45cd21bfa08f9d96cd8d650cba531ee1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"avLlyiMh4YJrXRqv5BTNA669uKn9C4UXKMKOx9gjiZM/25ai2nA7QUTWd7T6z4MnLRNb0y9gXTRDeJzw87LLDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:49:30.671689Z","bundle_sha256":"88466d7b96338fe9da254da288b4cc0d53f58347166e05911be5d8c8bad29a12"}}