{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BOVMV2ZPP5RQ34Q4IN6TRB6PV5","short_pith_number":"pith:BOVMV2ZP","canonical_record":{"source":{"id":"2508.12709","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-08-18T08:10:07Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"172ce70f3f90144d96ea863cf68fda79ff9a9c30d642cf61ae599375174257f6","abstract_canon_sha256":"a80ae7f50ddb8ca34dfcb9cff6dccdebae87cd11a015d51d8f9875f798d78e2c"},"schema_version":"1.0"},"canonical_sha256":"0baacaeb2f7f630df21c437d3887cfaf474a32363479175f0dc9430eae22ad48","source":{"kind":"arxiv","id":"2508.12709","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.12709","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"arxiv_version","alias_value":"2508.12709v1","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.12709","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"pith_short_12","alias_value":"BOVMV2ZPP5RQ","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"pith_short_16","alias_value":"BOVMV2ZPP5RQ34Q4","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"pith_short_8","alias_value":"BOVMV2ZP","created_at":"2026-07-05T11:55:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BOVMV2ZPP5RQ34Q4IN6TRB6PV5","target":"record","payload":{"canonical_record":{"source":{"id":"2508.12709","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-08-18T08:10:07Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"172ce70f3f90144d96ea863cf68fda79ff9a9c30d642cf61ae599375174257f6","abstract_canon_sha256":"a80ae7f50ddb8ca34dfcb9cff6dccdebae87cd11a015d51d8f9875f798d78e2c"},"schema_version":"1.0"},"canonical_sha256":"0baacaeb2f7f630df21c437d3887cfaf474a32363479175f0dc9430eae22ad48","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:55:25.692373Z","signature_b64":"uws2j118usqN1aLMGFDK8a1cScWNIGev7tusDPF/HIWpDqD/EPf+a7m/yN2u0hjte6NeXwk8xS0imQoYmbhcCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0baacaeb2f7f630df21c437d3887cfaf474a32363479175f0dc9430eae22ad48","last_reissued_at":"2026-07-05T11:55:25.691879Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:55:25.691879Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.12709","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":"2026-07-05T11:55:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qXR+FK1TGQ3NOE2af0Qx7XBhsO1rXHe96NwbMr3byv2TnIqP8OkVmjvPvSRArEeSZUvZ8oCib+3SHIPvurWaAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T04:27:32.518835Z"},"content_sha256":"4af91e73d9f0f4b67e45c466bf9020ccc921b91ebb0f40475207a034096d282e","schema_version":"1.0","event_id":"sha256:4af91e73d9f0f4b67e45c466bf9020ccc921b91ebb0f40475207a034096d282e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BOVMV2ZPP5RQ34Q4IN6TRB6PV5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MATPAC++: Enhanced Masked Latent Prediction for Self-Supervised Audio Representation Learning","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.SD","authors_text":"Aurian Quelennec, Geoffroy Peeters, Pierre Chouteau, Slim Essid","submitted_at":"2025-08-18T08:10:07Z","abstract_excerpt":"Masked latent prediction has emerged as a leading paradigm in self-supervised learning (SSL), especially for general audio and music representation learning. While recent methods have demonstrated strong performance, the role of the predictor module used at the output of such SSL systems remains mainly overlooked, despite being crucial for solving the pretext task at hand. In particular, this module should be able to deal with the ambiguity inherent in audio content, especially when it is composed of multiple sound sources. This work proposes a novel enhancement: integrating Multiple Choice Le"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.12709","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/2508.12709/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":"2026-07-05T11:55:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a6OWWILxwZyCC0RGr+WLOjhVGoUoxhIolfZQ5Qr8K/MsE9rs8hVwOREs8S5AVQIGKSte3pd6iF6OE8aSZvMBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T04:27:32.519356Z"},"content_sha256":"fbf3e0f7067227a79af16422046c765e756fab526365e18299aba968451506ed","schema_version":"1.0","event_id":"sha256:fbf3e0f7067227a79af16422046c765e756fab526365e18299aba968451506ed"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BOVMV2ZPP5RQ34Q4IN6TRB6PV5/bundle.json","state_url":"https://pith.science/pith/BOVMV2ZPP5RQ34Q4IN6TRB6PV5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BOVMV2ZPP5RQ34Q4IN6TRB6PV5/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":"2026-08-04T04:27:32Z","links":{"resolver":"https://pith.science/pith/BOVMV2ZPP5RQ34Q4IN6TRB6PV5","bundle":"https://pith.science/pith/BOVMV2ZPP5RQ34Q4IN6TRB6PV5/bundle.json","state":"https://pith.science/pith/BOVMV2ZPP5RQ34Q4IN6TRB6PV5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BOVMV2ZPP5RQ34Q4IN6TRB6PV5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BOVMV2ZPP5RQ34Q4IN6TRB6PV5","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":"a80ae7f50ddb8ca34dfcb9cff6dccdebae87cd11a015d51d8f9875f798d78e2c","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-08-18T08:10:07Z","title_canon_sha256":"172ce70f3f90144d96ea863cf68fda79ff9a9c30d642cf61ae599375174257f6"},"schema_version":"1.0","source":{"id":"2508.12709","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.12709","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"arxiv_version","alias_value":"2508.12709v1","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.12709","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"pith_short_12","alias_value":"BOVMV2ZPP5RQ","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"pith_short_16","alias_value":"BOVMV2ZPP5RQ34Q4","created_at":"2026-07-05T11:55:25Z"},{"alias_kind":"pith_short_8","alias_value":"BOVMV2ZP","created_at":"2026-07-05T11:55:25Z"}],"graph_snapshots":[{"event_id":"sha256:fbf3e0f7067227a79af16422046c765e756fab526365e18299aba968451506ed","target":"graph","created_at":"2026-07-05T11:55:25Z","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/2508.12709/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Masked latent prediction has emerged as a leading paradigm in self-supervised learning (SSL), especially for general audio and music representation learning. While recent methods have demonstrated strong performance, the role of the predictor module used at the output of such SSL systems remains mainly overlooked, despite being crucial for solving the pretext task at hand. In particular, this module should be able to deal with the ambiguity inherent in audio content, especially when it is composed of multiple sound sources. This work proposes a novel enhancement: integrating Multiple Choice Le","authors_text":"Aurian Quelennec, Geoffroy Peeters, Pierre Chouteau, Slim Essid","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-08-18T08:10:07Z","title":"MATPAC++: Enhanced Masked Latent Prediction for Self-Supervised Audio Representation Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.12709","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":"sha256:4af91e73d9f0f4b67e45c466bf9020ccc921b91ebb0f40475207a034096d282e","target":"record","created_at":"2026-07-05T11:55:25Z","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":"a80ae7f50ddb8ca34dfcb9cff6dccdebae87cd11a015d51d8f9875f798d78e2c","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-08-18T08:10:07Z","title_canon_sha256":"172ce70f3f90144d96ea863cf68fda79ff9a9c30d642cf61ae599375174257f6"},"schema_version":"1.0","source":{"id":"2508.12709","kind":"arxiv","version":1}},"canonical_sha256":"0baacaeb2f7f630df21c437d3887cfaf474a32363479175f0dc9430eae22ad48","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0baacaeb2f7f630df21c437d3887cfaf474a32363479175f0dc9430eae22ad48","first_computed_at":"2026-07-05T11:55:25.691879Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:55:25.691879Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uws2j118usqN1aLMGFDK8a1cScWNIGev7tusDPF/HIWpDqD/EPf+a7m/yN2u0hjte6NeXwk8xS0imQoYmbhcCA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:55:25.692373Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.12709","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4af91e73d9f0f4b67e45c466bf9020ccc921b91ebb0f40475207a034096d282e","sha256:fbf3e0f7067227a79af16422046c765e756fab526365e18299aba968451506ed"],"state_sha256":"75356273c5e50ac988fbc89ef16dc650eea1ae192d0588aae9158f54f4c532f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rBm9BfLhvkYVFJJO9qIgawVroZUICifZebQ3FP1sV6z+SXffxm77qSPuq8hW/XvS2Dyy6utUnOzs9wdV3B1TCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T04:27:32.524655Z","bundle_sha256":"93acb07d3a2209388258e4698eebe6d6ebecb808eb7fd0b03ccb300116ca3e93"}}