{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:M4P4JFRBFGYDLJJJZZVRIN7SUP","short_pith_number":"pith:M4P4JFRB","canonical_record":{"source":{"id":"2008.02480","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2020-08-06T07:02:24Z","cross_cats_sorted":["cs.LG","cs.SD"],"title_canon_sha256":"390b95cbfa2c7c78ad90e4877f6c54cf990bb51437684209e0bc66483e7ac585","abstract_canon_sha256":"11f92ca2d6dcc03228249bad72b250b3e627de02e49f9974cda5781bfcf4ec75"},"schema_version":"1.0"},"canonical_sha256":"671fc4962129b035a529ce6b1437f2a3f53579fa6fc855f3bfae837e27b689a6","source":{"kind":"arxiv","id":"2008.02480","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.02480","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"arxiv_version","alias_value":"2008.02480v1","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.02480","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"pith_short_12","alias_value":"M4P4JFRBFGYD","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"pith_short_16","alias_value":"M4P4JFRBFGYDLJJJ","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"pith_short_8","alias_value":"M4P4JFRB","created_at":"2026-07-05T01:25:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:M4P4JFRBFGYDLJJJZZVRIN7SUP","target":"record","payload":{"canonical_record":{"source":{"id":"2008.02480","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2020-08-06T07:02:24Z","cross_cats_sorted":["cs.LG","cs.SD"],"title_canon_sha256":"390b95cbfa2c7c78ad90e4877f6c54cf990bb51437684209e0bc66483e7ac585","abstract_canon_sha256":"11f92ca2d6dcc03228249bad72b250b3e627de02e49f9974cda5781bfcf4ec75"},"schema_version":"1.0"},"canonical_sha256":"671fc4962129b035a529ce6b1437f2a3f53579fa6fc855f3bfae837e27b689a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:25:14.082246Z","signature_b64":"/mEyoscwjkB2e7y/bcOZFO2YX4DwCo2uUfXGw2BrDlh3/1COZjapuKsB3DvzczvZoqW48ryO162ADhwjpCUYAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"671fc4962129b035a529ce6b1437f2a3f53579fa6fc855f3bfae837e27b689a6","last_reissued_at":"2026-07-05T01:25:14.081702Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:25:14.081702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.02480","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":"2026-07-05T01:25:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2PBz3m/vrI8rTWkCRx7wDmy5JeXuMa+LNvB/MP5365s5IL3DwX9oU/H16qps0EDdh2BTkEy67rNRXEPwfFadCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:35:17.981815Z"},"content_sha256":"705bc0248003f0cc90cd155631bac7e5b6f42c8e01b094edcb0f8a74fde667cc","schema_version":"1.0","event_id":"sha256:705bc0248003f0cc90cd155631bac7e5b6f42c8e01b094edcb0f8a74fde667cc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:M4P4JFRBFGYDLJJJZZVRIN7SUP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mixing-Specific Data Augmentation Techniques for Improved Blind Violin/Piano Source Separation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG","cs.SD"],"primary_cat":"eess.AS","authors_text":"Alvin Wen-Yu Su, Ching-Yu Chiu, Wen-Yi Hsiao, Yi-Hsuan Yang, Yin-Cheng Yeh","submitted_at":"2020-08-06T07:02:24Z","abstract_excerpt":"Blind music source separation has been a popular and active subject of research in both the music information retrieval and signal processing communities. To counter the lack of available multi-track data for supervised model training, a data augmentation method that creates artificial mixtures by combining tracks from different songs has been shown useful in recent works. Following this light, we examine further in this paper extended data augmentation methods that consider more sophisticated mixing settings employed in the modern music production routine, the relationship between the tracks "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.02480","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/2008.02480/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":"2026-07-05T01:25:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rd/h4uIqWCCa/qjtl5/9xaktb9h3ZVxmqjM/SrBlbdpwEIttfXZ5MozmuiNn5j7ywURgYDyMA8arN4GDIqZ5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:35:17.982642Z"},"content_sha256":"dfbafa048deb4f5284b3fe28233ed0dee98a183cef7e36268d019136bb2b4bf8","schema_version":"1.0","event_id":"sha256:dfbafa048deb4f5284b3fe28233ed0dee98a183cef7e36268d019136bb2b4bf8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M4P4JFRBFGYDLJJJZZVRIN7SUP/bundle.json","state_url":"https://pith.science/pith/M4P4JFRBFGYDLJJJZZVRIN7SUP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M4P4JFRBFGYDLJJJZZVRIN7SUP/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":"2026-08-03T19:35:17Z","links":{"resolver":"https://pith.science/pith/M4P4JFRBFGYDLJJJZZVRIN7SUP","bundle":"https://pith.science/pith/M4P4JFRBFGYDLJJJZZVRIN7SUP/bundle.json","state":"https://pith.science/pith/M4P4JFRBFGYDLJJJZZVRIN7SUP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M4P4JFRBFGYDLJJJZZVRIN7SUP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:M4P4JFRBFGYDLJJJZZVRIN7SUP","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":"11f92ca2d6dcc03228249bad72b250b3e627de02e49f9974cda5781bfcf4ec75","cross_cats_sorted":["cs.LG","cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2020-08-06T07:02:24Z","title_canon_sha256":"390b95cbfa2c7c78ad90e4877f6c54cf990bb51437684209e0bc66483e7ac585"},"schema_version":"1.0","source":{"id":"2008.02480","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.02480","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"arxiv_version","alias_value":"2008.02480v1","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.02480","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"pith_short_12","alias_value":"M4P4JFRBFGYD","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"pith_short_16","alias_value":"M4P4JFRBFGYDLJJJ","created_at":"2026-07-05T01:25:14Z"},{"alias_kind":"pith_short_8","alias_value":"M4P4JFRB","created_at":"2026-07-05T01:25:14Z"}],"graph_snapshots":[{"event_id":"sha256:dfbafa048deb4f5284b3fe28233ed0dee98a183cef7e36268d019136bb2b4bf8","target":"graph","created_at":"2026-07-05T01:25:14Z","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/2008.02480/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Blind music source separation has been a popular and active subject of research in both the music information retrieval and signal processing communities. To counter the lack of available multi-track data for supervised model training, a data augmentation method that creates artificial mixtures by combining tracks from different songs has been shown useful in recent works. Following this light, we examine further in this paper extended data augmentation methods that consider more sophisticated mixing settings employed in the modern music production routine, the relationship between the tracks ","authors_text":"Alvin Wen-Yu Su, Ching-Yu Chiu, Wen-Yi Hsiao, Yi-Hsuan Yang, Yin-Cheng Yeh","cross_cats":["cs.LG","cs.SD"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2020-08-06T07:02:24Z","title":"Mixing-Specific Data Augmentation Techniques for Improved Blind Violin/Piano Source Separation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.02480","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":"sha256:705bc0248003f0cc90cd155631bac7e5b6f42c8e01b094edcb0f8a74fde667cc","target":"record","created_at":"2026-07-05T01:25:14Z","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":"11f92ca2d6dcc03228249bad72b250b3e627de02e49f9974cda5781bfcf4ec75","cross_cats_sorted":["cs.LG","cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2020-08-06T07:02:24Z","title_canon_sha256":"390b95cbfa2c7c78ad90e4877f6c54cf990bb51437684209e0bc66483e7ac585"},"schema_version":"1.0","source":{"id":"2008.02480","kind":"arxiv","version":1}},"canonical_sha256":"671fc4962129b035a529ce6b1437f2a3f53579fa6fc855f3bfae837e27b689a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"671fc4962129b035a529ce6b1437f2a3f53579fa6fc855f3bfae837e27b689a6","first_computed_at":"2026-07-05T01:25:14.081702Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:25:14.081702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/mEyoscwjkB2e7y/bcOZFO2YX4DwCo2uUfXGw2BrDlh3/1COZjapuKsB3DvzczvZoqW48ryO162ADhwjpCUYAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:25:14.082246Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.02480","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:705bc0248003f0cc90cd155631bac7e5b6f42c8e01b094edcb0f8a74fde667cc","sha256:dfbafa048deb4f5284b3fe28233ed0dee98a183cef7e36268d019136bb2b4bf8"],"state_sha256":"5e5fe68b15bac99c406ffb9fa7a13af2002ad74d0f9c4c7d61d44570f2f97c9e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5AI5qd3yESmlV1sGYl0Qq3VkeCUEGUOG5nXikhgk21S+un02RrXSHzgVHfP2vQwMcJ001zmYR69GZ2THyqcMDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:35:17.989089Z","bundle_sha256":"bc2376e225fd4b79bda324e842b9536b7b82a6486082e23ee38e09dffd515aa0"}}