{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:TC7HIORIUFSS4VTHLGB6MHLU2A","short_pith_number":"pith:TC7HIORI","canonical_record":{"source":{"id":"2506.23371","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2025-06-29T19:10:51Z","cross_cats_sorted":["cs.LG","cs.SD"],"title_canon_sha256":"ed75432eacbf3513be22c1a706f55807c0a9d5dfffff54ddd35fe998e8286e36","abstract_canon_sha256":"4b59e2821c03b5b6b03b6a87726de7e8a45ae14823b0c6366ff9116e2ae5ba20"},"schema_version":"1.0"},"canonical_sha256":"98be743a28a1652e56675983e61d74d032c3ab2491d41cccefa7e55bea7279b4","source":{"kind":"arxiv","id":"2506.23371","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.23371","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"arxiv_version","alias_value":"2506.23371v1","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.23371","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"pith_short_12","alias_value":"TC7HIORIUFSS","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"pith_short_16","alias_value":"TC7HIORIUFSS4VTH","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"pith_short_8","alias_value":"TC7HIORI","created_at":"2026-07-05T11:29:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:TC7HIORIUFSS4VTHLGB6MHLU2A","target":"record","payload":{"canonical_record":{"source":{"id":"2506.23371","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2025-06-29T19:10:51Z","cross_cats_sorted":["cs.LG","cs.SD"],"title_canon_sha256":"ed75432eacbf3513be22c1a706f55807c0a9d5dfffff54ddd35fe998e8286e36","abstract_canon_sha256":"4b59e2821c03b5b6b03b6a87726de7e8a45ae14823b0c6366ff9116e2ae5ba20"},"schema_version":"1.0"},"canonical_sha256":"98be743a28a1652e56675983e61d74d032c3ab2491d41cccefa7e55bea7279b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:29:20.606268Z","signature_b64":"aVbXDzQLl+xY8GetiNJKxv6N6Yqps/c3E0+4WnWS6kbrgz1iY/P7FeLgcbLA/n5Namt2vZXaI+FvBKHWP/WaAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98be743a28a1652e56675983e61d74d032c3ab2491d41cccefa7e55bea7279b4","last_reissued_at":"2026-07-05T11:29:20.605789Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:29:20.605789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.23371","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":"2026-07-05T11:29:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cG2F1/Ck3NwVP90r8zv7OCV5vgeSsQyXmdDORCMMVs14HpbfxoxTuGa7Pv3QKx36t8lzveoAHtNe/b1sVnk4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T23:54:05.905936Z"},"content_sha256":"a6f453b1bebe9b1c08599d1fcc1fbf2f1affe7f30ccac45c95df65c916223fc0","schema_version":"1.0","event_id":"sha256:a6f453b1bebe9b1c08599d1fcc1fbf2f1affe7f30ccac45c95df65c916223fc0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:TC7HIORIUFSS4VTHLGB6MHLU2A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Investigating an Overfitting and Degeneration Phenomenon in Self-Supervised Multi-Pitch Estimation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG","cs.SD"],"primary_cat":"eess.AS","authors_text":"Frank Cwitkowitz, Zhiyao Duan","submitted_at":"2025-06-29T19:10:51Z","abstract_excerpt":"Multi-Pitch Estimation (MPE) continues to be a sought after capability of Music Information Retrieval (MIR) systems, and is critical for many applications and downstream tasks involving pitch, including music transcription. However, existing methods are largely based on supervised learning, and there are significant challenges in collecting annotated data for the task. Recently, self-supervised techniques exploiting intrinsic properties of pitch and harmonic signals have shown promise for both monophonic and polyphonic pitch estimation, but these still remain inferior to supervised methods. In"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.23371","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/2506.23371/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":"2026-07-05T11:29:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W+kc/s+RkDtDqhHmu0yPXD+99RaVo8+yQSxOjhDr5NI1xDWm5xvGY05xOQK98KGjhs2TTB1BboHfAYzwgwisCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T23:54:05.906428Z"},"content_sha256":"f68ae45d333c547a81567a458b8c0f30ea6ff37bee4a6caddea9f560344b602a","schema_version":"1.0","event_id":"sha256:f68ae45d333c547a81567a458b8c0f30ea6ff37bee4a6caddea9f560344b602a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TC7HIORIUFSS4VTHLGB6MHLU2A/bundle.json","state_url":"https://pith.science/pith/TC7HIORIUFSS4VTHLGB6MHLU2A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TC7HIORIUFSS4VTHLGB6MHLU2A/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":"2026-08-20T23:54:05Z","links":{"resolver":"https://pith.science/pith/TC7HIORIUFSS4VTHLGB6MHLU2A","bundle":"https://pith.science/pith/TC7HIORIUFSS4VTHLGB6MHLU2A/bundle.json","state":"https://pith.science/pith/TC7HIORIUFSS4VTHLGB6MHLU2A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TC7HIORIUFSS4VTHLGB6MHLU2A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:TC7HIORIUFSS4VTHLGB6MHLU2A","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":"4b59e2821c03b5b6b03b6a87726de7e8a45ae14823b0c6366ff9116e2ae5ba20","cross_cats_sorted":["cs.LG","cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2025-06-29T19:10:51Z","title_canon_sha256":"ed75432eacbf3513be22c1a706f55807c0a9d5dfffff54ddd35fe998e8286e36"},"schema_version":"1.0","source":{"id":"2506.23371","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.23371","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"arxiv_version","alias_value":"2506.23371v1","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.23371","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"pith_short_12","alias_value":"TC7HIORIUFSS","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"pith_short_16","alias_value":"TC7HIORIUFSS4VTH","created_at":"2026-07-05T11:29:20Z"},{"alias_kind":"pith_short_8","alias_value":"TC7HIORI","created_at":"2026-07-05T11:29:20Z"}],"graph_snapshots":[{"event_id":"sha256:f68ae45d333c547a81567a458b8c0f30ea6ff37bee4a6caddea9f560344b602a","target":"graph","created_at":"2026-07-05T11:29:20Z","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/2506.23371/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Multi-Pitch Estimation (MPE) continues to be a sought after capability of Music Information Retrieval (MIR) systems, and is critical for many applications and downstream tasks involving pitch, including music transcription. However, existing methods are largely based on supervised learning, and there are significant challenges in collecting annotated data for the task. Recently, self-supervised techniques exploiting intrinsic properties of pitch and harmonic signals have shown promise for both monophonic and polyphonic pitch estimation, but these still remain inferior to supervised methods. In","authors_text":"Frank Cwitkowitz, Zhiyao Duan","cross_cats":["cs.LG","cs.SD"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2025-06-29T19:10:51Z","title":"Investigating an Overfitting and Degeneration Phenomenon in Self-Supervised Multi-Pitch Estimation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.23371","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:a6f453b1bebe9b1c08599d1fcc1fbf2f1affe7f30ccac45c95df65c916223fc0","target":"record","created_at":"2026-07-05T11:29:20Z","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":"4b59e2821c03b5b6b03b6a87726de7e8a45ae14823b0c6366ff9116e2ae5ba20","cross_cats_sorted":["cs.LG","cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2025-06-29T19:10:51Z","title_canon_sha256":"ed75432eacbf3513be22c1a706f55807c0a9d5dfffff54ddd35fe998e8286e36"},"schema_version":"1.0","source":{"id":"2506.23371","kind":"arxiv","version":1}},"canonical_sha256":"98be743a28a1652e56675983e61d74d032c3ab2491d41cccefa7e55bea7279b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98be743a28a1652e56675983e61d74d032c3ab2491d41cccefa7e55bea7279b4","first_computed_at":"2026-07-05T11:29:20.605789Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:29:20.605789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aVbXDzQLl+xY8GetiNJKxv6N6Yqps/c3E0+4WnWS6kbrgz1iY/P7FeLgcbLA/n5Namt2vZXaI+FvBKHWP/WaAg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:29:20.606268Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.23371","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6f453b1bebe9b1c08599d1fcc1fbf2f1affe7f30ccac45c95df65c916223fc0","sha256:f68ae45d333c547a81567a458b8c0f30ea6ff37bee4a6caddea9f560344b602a"],"state_sha256":"8ca5670bda363644b1eccfe230edc3de15af0cbb4b214556559cf00e7ee98d35"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KvjvYs9Bf5IZO0fkKANJIjStZTgpgUntaVFCvCPUtYVAYYZbjXEQW3LXsKJYVpF11+S5nKpuffuo/9eTqqE4BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T23:54:05.910443Z","bundle_sha256":"58a76891732419cdab33d110987d81867a717f5cd3188151f8404fa77d06cfd7"}}