{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:FDA3SZ2MQHSRYJL55UKPDSG3GP","short_pith_number":"pith:FDA3SZ2M","canonical_record":{"source":{"id":"1811.01531","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-05T07:00:12Z","cross_cats_sorted":["cs.SD","eess.AS","stat.ML"],"title_canon_sha256":"6d9026b522fff86f3205b818f88d2eb4218c8f45adf9cc202fe2bd6ec2989f26","abstract_canon_sha256":"29ee7be17e1c7b0ab92c06349e516c7b3acc21dbc45974e6ce88640713e9d5fb"},"schema_version":"1.0"},"canonical_sha256":"28c1b9674c81e51c257ded14f1c8db33ebc806d146f1ba518a173da9f01fc818","source":{"kind":"arxiv","id":"1811.01531","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.01531","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"arxiv_version","alias_value":"1811.01531v2","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.01531","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"pith_short_12","alias_value":"FDA3SZ2MQHSR","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"pith_short_16","alias_value":"FDA3SZ2MQHSRYJL5","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"pith_short_8","alias_value":"FDA3SZ2M","created_at":"2026-07-05T02:39:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:FDA3SZ2MQHSRYJL55UKPDSG3GP","target":"record","payload":{"canonical_record":{"source":{"id":"1811.01531","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-05T07:00:12Z","cross_cats_sorted":["cs.SD","eess.AS","stat.ML"],"title_canon_sha256":"6d9026b522fff86f3205b818f88d2eb4218c8f45adf9cc202fe2bd6ec2989f26","abstract_canon_sha256":"29ee7be17e1c7b0ab92c06349e516c7b3acc21dbc45974e6ce88640713e9d5fb"},"schema_version":"1.0"},"canonical_sha256":"28c1b9674c81e51c257ded14f1c8db33ebc806d146f1ba518a173da9f01fc818","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:39:55.023443Z","signature_b64":"vv2BYvHYamwmTLelc4yomxz1kPE7L5x0hd3nuDpc6i0cBKMHJw1bGk6iEJF5fHsd4zoHkp648LLXqCIEVoaODg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28c1b9674c81e51c257ded14f1c8db33ebc806d146f1ba518a173da9f01fc818","last_reissued_at":"2026-07-05T02:39:55.023074Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:39:55.023074Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.01531","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":"2026-07-05T02:39:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y40Dqyrh1sz58zZSCVzG6QcY++I59kiGrvIQnTb3beobAW86h6dbBaMGJRYzqETDSU3mgfrfz/DpcQQq+0r7Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T05:43:15.008613Z"},"content_sha256":"d36564f67eafab9d5a830fc3ac9afc4670d76c02ac9362088a89a4191f7bd723","schema_version":"1.0","event_id":"sha256:d36564f67eafab9d5a830fc3ac9afc4670d76c02ac9362088a89a4191f7bd723"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:FDA3SZ2MQHSRYJL55UKPDSG3GP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unsupervised Deep Clustering for Source Separation: Direct Learning from Mixtures using Spatial Information","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SD","eess.AS","stat.ML"],"primary_cat":"cs.LG","authors_text":"Efthymios Tzinis, Paris Smaragdis, Shrikant Venkataramani","submitted_at":"2018-11-05T07:00:12Z","abstract_excerpt":"We present a monophonic source separation system that is trained by only observing mixtures with no ground truth separation information. We use a deep clustering approach which trains on multi-channel mixtures and learns to project spectrogram bins to source clusters that correlate with various spatial features. We show that using such a training process we can obtain separation performance that is as good as making use of ground truth separation information. Once trained, this system is capable of performing sound separation on monophonic inputs, despite having learned how to do so using mult"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.01531","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/1811.01531/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":"2026-07-05T02:39:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WeGfQtmglE2RduUFbrqn82xx3ZMLwaVb/qkNNwb9GNmDedvZgIXXuvNjv0tKPJPwQH3sUKxeseCtVN9YyJUWBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T05:43:15.009265Z"},"content_sha256":"b51c7f41e353f1578945f7123042ed9194c2fe96d0df09dd211aec8962d2a1bd","schema_version":"1.0","event_id":"sha256:b51c7f41e353f1578945f7123042ed9194c2fe96d0df09dd211aec8962d2a1bd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FDA3SZ2MQHSRYJL55UKPDSG3GP/bundle.json","state_url":"https://pith.science/pith/FDA3SZ2MQHSRYJL55UKPDSG3GP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FDA3SZ2MQHSRYJL55UKPDSG3GP/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":"2026-07-09T05:43:15Z","links":{"resolver":"https://pith.science/pith/FDA3SZ2MQHSRYJL55UKPDSG3GP","bundle":"https://pith.science/pith/FDA3SZ2MQHSRYJL55UKPDSG3GP/bundle.json","state":"https://pith.science/pith/FDA3SZ2MQHSRYJL55UKPDSG3GP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FDA3SZ2MQHSRYJL55UKPDSG3GP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FDA3SZ2MQHSRYJL55UKPDSG3GP","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":"29ee7be17e1c7b0ab92c06349e516c7b3acc21dbc45974e6ce88640713e9d5fb","cross_cats_sorted":["cs.SD","eess.AS","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-05T07:00:12Z","title_canon_sha256":"6d9026b522fff86f3205b818f88d2eb4218c8f45adf9cc202fe2bd6ec2989f26"},"schema_version":"1.0","source":{"id":"1811.01531","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.01531","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"arxiv_version","alias_value":"1811.01531v2","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.01531","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"pith_short_12","alias_value":"FDA3SZ2MQHSR","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"pith_short_16","alias_value":"FDA3SZ2MQHSRYJL5","created_at":"2026-07-05T02:39:55Z"},{"alias_kind":"pith_short_8","alias_value":"FDA3SZ2M","created_at":"2026-07-05T02:39:55Z"}],"graph_snapshots":[{"event_id":"sha256:b51c7f41e353f1578945f7123042ed9194c2fe96d0df09dd211aec8962d2a1bd","target":"graph","created_at":"2026-07-05T02:39:55Z","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/1811.01531/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a monophonic source separation system that is trained by only observing mixtures with no ground truth separation information. We use a deep clustering approach which trains on multi-channel mixtures and learns to project spectrogram bins to source clusters that correlate with various spatial features. We show that using such a training process we can obtain separation performance that is as good as making use of ground truth separation information. Once trained, this system is capable of performing sound separation on monophonic inputs, despite having learned how to do so using mult","authors_text":"Efthymios Tzinis, Paris Smaragdis, Shrikant Venkataramani","cross_cats":["cs.SD","eess.AS","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-05T07:00:12Z","title":"Unsupervised Deep Clustering for Source Separation: Direct Learning from Mixtures using Spatial Information"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.01531","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:d36564f67eafab9d5a830fc3ac9afc4670d76c02ac9362088a89a4191f7bd723","target":"record","created_at":"2026-07-05T02:39:55Z","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":"29ee7be17e1c7b0ab92c06349e516c7b3acc21dbc45974e6ce88640713e9d5fb","cross_cats_sorted":["cs.SD","eess.AS","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-11-05T07:00:12Z","title_canon_sha256":"6d9026b522fff86f3205b818f88d2eb4218c8f45adf9cc202fe2bd6ec2989f26"},"schema_version":"1.0","source":{"id":"1811.01531","kind":"arxiv","version":2}},"canonical_sha256":"28c1b9674c81e51c257ded14f1c8db33ebc806d146f1ba518a173da9f01fc818","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28c1b9674c81e51c257ded14f1c8db33ebc806d146f1ba518a173da9f01fc818","first_computed_at":"2026-07-05T02:39:55.023074Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:39:55.023074Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vv2BYvHYamwmTLelc4yomxz1kPE7L5x0hd3nuDpc6i0cBKMHJw1bGk6iEJF5fHsd4zoHkp648LLXqCIEVoaODg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:39:55.023443Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.01531","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d36564f67eafab9d5a830fc3ac9afc4670d76c02ac9362088a89a4191f7bd723","sha256:b51c7f41e353f1578945f7123042ed9194c2fe96d0df09dd211aec8962d2a1bd"],"state_sha256":"b6a51ba64ec70bd12865ad5fd820200c11164e1c281541b003106e4df35574c5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DTt7gZ8o+eO5F1RHuZKgIYmjJ2ys9aBeyfVRXZJtQU3aD+VrGUHsmPR8iYoXtyyIT/pj1yeMp4nzvSE6JiAZDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T05:43:15.013473Z","bundle_sha256":"3ccf299ddbaebdedcfdf357f8fba1c2c30913e32630f81364b2988bbdae27cb7"}}