{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:MGTC3IMZKS5AU4BEAU3TJ7OOSL","short_pith_number":"pith:MGTC3IMZ","canonical_record":{"source":{"id":"2212.14618","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2022-12-30T10:11:57Z","cross_cats_sorted":["cs.LG","eess.AS"],"title_canon_sha256":"d07d7482231f3b4442c1e11b76061188a05037d4ef2e16e5930439de7abe2b90","abstract_canon_sha256":"08830b3a1c2a530f9126fb943ac3a20c00f7932471bdc39faaf865a51538fe4f"},"schema_version":"1.0"},"canonical_sha256":"61a62da19954ba0a7024053734fdce92daebc17461b59567ac126841985d874a","source":{"kind":"arxiv","id":"2212.14618","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.14618","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"arxiv_version","alias_value":"2212.14618v2","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.14618","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"pith_short_12","alias_value":"MGTC3IMZKS5A","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"pith_short_16","alias_value":"MGTC3IMZKS5AU4BE","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"pith_short_8","alias_value":"MGTC3IMZ","created_at":"2026-07-05T05:34:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:MGTC3IMZKS5AU4BEAU3TJ7OOSL","target":"record","payload":{"canonical_record":{"source":{"id":"2212.14618","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2022-12-30T10:11:57Z","cross_cats_sorted":["cs.LG","eess.AS"],"title_canon_sha256":"d07d7482231f3b4442c1e11b76061188a05037d4ef2e16e5930439de7abe2b90","abstract_canon_sha256":"08830b3a1c2a530f9126fb943ac3a20c00f7932471bdc39faaf865a51538fe4f"},"schema_version":"1.0"},"canonical_sha256":"61a62da19954ba0a7024053734fdce92daebc17461b59567ac126841985d874a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:34:34.039701Z","signature_b64":"jK9gL4fCB0lPNRcbYXPG5N8U63IanLBmUlA1/2qJCIaONDW1vW3ecMEILuduALTrZoR5tyrNL6yftmM+yp/jDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61a62da19954ba0a7024053734fdce92daebc17461b59567ac126841985d874a","last_reissued_at":"2026-07-05T05:34:34.039305Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:34:34.039305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.14618","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:34:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2Zpwkyin7PkC0bu2ZSYqHYFeypBOvCEU6Sncgvy68lFUmXI3ReTAKTKkE9vEgVDnNsBlvNndoJtilp6cBDuWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T22:13:59.967315Z"},"content_sha256":"c16c95044d4342475f25a42ccf3ff84f1923c9baae115acc7fc063ad2cba515e","schema_version":"1.0","event_id":"sha256:c16c95044d4342475f25a42ccf3ff84f1923c9baae115acc7fc063ad2cba515e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:MGTC3IMZKS5AU4BEAU3TJ7OOSL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Blind Restoration of Real-World Audio by 1D Operational GANs","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG","eess.AS"],"primary_cat":"cs.SD","authors_text":"Moncef Gabbouj, Muhammad Chowdhury, Muhammad Salman Khan, Ozer Can Devecioglu, Serkan Kiranyaz, Turker Ince","submitted_at":"2022-12-30T10:11:57Z","abstract_excerpt":"Objective: Despite numerous studies proposed for audio restoration in the literature, most of them focus on an isolated restoration problem such as denoising or dereverberation, ignoring other artifacts. Moreover, assuming a noisy or reverberant environment with limited number of fixed signal-to-distortion ratio (SDR) levels is a common practice. However, real-world audio is often corrupted by a blend of artifacts such as reverberation, sensor noise, and background audio mixture with varying types, severities, and duration. In this study, we propose a novel approach for blind restoration of re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.14618","kind":"arxiv","version":2},"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/2212.14618/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":"2026-07-05T05:34:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mdT4UV4JMjeaYxoXWtPjPSh8w8ks2QoG26KjcTc7ZckTDxK0hcX5Thri0IiAHenNLz0qoI+68WB5hfluDL9bCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T22:13:59.967815Z"},"content_sha256":"7769d9e925590522f29f0d2a418d8cba8a02d8b3e4ad9cfc79ea209b48d42ef4","schema_version":"1.0","event_id":"sha256:7769d9e925590522f29f0d2a418d8cba8a02d8b3e4ad9cfc79ea209b48d42ef4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MGTC3IMZKS5AU4BEAU3TJ7OOSL/bundle.json","state_url":"https://pith.science/pith/MGTC3IMZKS5AU4BEAU3TJ7OOSL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MGTC3IMZKS5AU4BEAU3TJ7OOSL/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":"2026-08-20T22:13:59Z","links":{"resolver":"https://pith.science/pith/MGTC3IMZKS5AU4BEAU3TJ7OOSL","bundle":"https://pith.science/pith/MGTC3IMZKS5AU4BEAU3TJ7OOSL/bundle.json","state":"https://pith.science/pith/MGTC3IMZKS5AU4BEAU3TJ7OOSL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MGTC3IMZKS5AU4BEAU3TJ7OOSL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:MGTC3IMZKS5AU4BEAU3TJ7OOSL","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":"08830b3a1c2a530f9126fb943ac3a20c00f7932471bdc39faaf865a51538fe4f","cross_cats_sorted":["cs.LG","eess.AS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2022-12-30T10:11:57Z","title_canon_sha256":"d07d7482231f3b4442c1e11b76061188a05037d4ef2e16e5930439de7abe2b90"},"schema_version":"1.0","source":{"id":"2212.14618","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.14618","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"arxiv_version","alias_value":"2212.14618v2","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.14618","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"pith_short_12","alias_value":"MGTC3IMZKS5A","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"pith_short_16","alias_value":"MGTC3IMZKS5AU4BE","created_at":"2026-07-05T05:34:34Z"},{"alias_kind":"pith_short_8","alias_value":"MGTC3IMZ","created_at":"2026-07-05T05:34:34Z"}],"graph_snapshots":[{"event_id":"sha256:7769d9e925590522f29f0d2a418d8cba8a02d8b3e4ad9cfc79ea209b48d42ef4","target":"graph","created_at":"2026-07-05T05:34:34Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2212.14618/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Objective: Despite numerous studies proposed for audio restoration in the literature, most of them focus on an isolated restoration problem such as denoising or dereverberation, ignoring other artifacts. Moreover, assuming a noisy or reverberant environment with limited number of fixed signal-to-distortion ratio (SDR) levels is a common practice. However, real-world audio is often corrupted by a blend of artifacts such as reverberation, sensor noise, and background audio mixture with varying types, severities, and duration. In this study, we propose a novel approach for blind restoration of re","authors_text":"Moncef Gabbouj, Muhammad Chowdhury, Muhammad Salman Khan, Ozer Can Devecioglu, Serkan Kiranyaz, Turker Ince","cross_cats":["cs.LG","eess.AS"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2022-12-30T10:11:57Z","title":"Blind Restoration of Real-World Audio by 1D Operational GANs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.14618","kind":"arxiv","version":2},"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:c16c95044d4342475f25a42ccf3ff84f1923c9baae115acc7fc063ad2cba515e","target":"record","created_at":"2026-07-05T05:34:34Z","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":"08830b3a1c2a530f9126fb943ac3a20c00f7932471bdc39faaf865a51538fe4f","cross_cats_sorted":["cs.LG","eess.AS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2022-12-30T10:11:57Z","title_canon_sha256":"d07d7482231f3b4442c1e11b76061188a05037d4ef2e16e5930439de7abe2b90"},"schema_version":"1.0","source":{"id":"2212.14618","kind":"arxiv","version":2}},"canonical_sha256":"61a62da19954ba0a7024053734fdce92daebc17461b59567ac126841985d874a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"61a62da19954ba0a7024053734fdce92daebc17461b59567ac126841985d874a","first_computed_at":"2026-07-05T05:34:34.039305Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:34:34.039305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jK9gL4fCB0lPNRcbYXPG5N8U63IanLBmUlA1/2qJCIaONDW1vW3ecMEILuduALTrZoR5tyrNL6yftmM+yp/jDg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:34:34.039701Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.14618","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c16c95044d4342475f25a42ccf3ff84f1923c9baae115acc7fc063ad2cba515e","sha256:7769d9e925590522f29f0d2a418d8cba8a02d8b3e4ad9cfc79ea209b48d42ef4"],"state_sha256":"dc39d466cf22becd610ac8d977e3d26a9456c73bfee5837668b7fb7e0fe41460"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VqVqMoIxamxv9HkpnVb0t2Elnhas5AwUJ8WTExgGteoC67ITellfse2lBB0s1mXF4J9tcyQYX7bGd/aznxuFAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T22:13:59.973244Z","bundle_sha256":"37a8d6d048ca77a74752c54ab728e43629f0729c63f77a62a50d2505f7aee7c2"}}