{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:Z7CBWIZ54C5WYSYPEUYAIJSMFX","short_pith_number":"pith:Z7CBWIZ5","canonical_record":{"source":{"id":"2507.12090","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-07-16T09:53:29Z","cross_cats_sorted":["eess.AS"],"title_canon_sha256":"a8119a7df90c5938e94eb536fbf13ce14c76704e2cd667a1441a23f555330945","abstract_canon_sha256":"0a3c1b6c55c00b8e7e70bb1a9553dde676d4dc83444c1ff88539fe4284bc1444"},"schema_version":"1.0"},"canonical_sha256":"cfc41b233de0bb6c4b0f253004264c2dc82d7d789f95ee9c5945715b2356eeb6","source":{"kind":"arxiv","id":"2507.12090","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.12090","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"arxiv_version","alias_value":"2507.12090v1","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.12090","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"pith_short_12","alias_value":"Z7CBWIZ54C5W","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"pith_short_16","alias_value":"Z7CBWIZ54C5WYSYP","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"pith_short_8","alias_value":"Z7CBWIZ5","created_at":"2026-07-05T11:38:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:Z7CBWIZ54C5WYSYPEUYAIJSMFX","target":"record","payload":{"canonical_record":{"source":{"id":"2507.12090","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-07-16T09:53:29Z","cross_cats_sorted":["eess.AS"],"title_canon_sha256":"a8119a7df90c5938e94eb536fbf13ce14c76704e2cd667a1441a23f555330945","abstract_canon_sha256":"0a3c1b6c55c00b8e7e70bb1a9553dde676d4dc83444c1ff88539fe4284bc1444"},"schema_version":"1.0"},"canonical_sha256":"cfc41b233de0bb6c4b0f253004264c2dc82d7d789f95ee9c5945715b2356eeb6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:38:14.259233Z","signature_b64":"JL8WK4n6q0tKzXhAJp6ndbOd5MTJVcOp2Qv1D8YWjuhF6nO/aEMpCtGcPkLQbojSz4BgFKeX4lYxFGVIdP3xDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cfc41b233de0bb6c4b0f253004264c2dc82d7d789f95ee9c5945715b2356eeb6","last_reissued_at":"2026-07-05T11:38:14.258823Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:38:14.258823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.12090","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":"2026-07-05T11:38:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zHDfpOvXPDlYek5K/r+wITZNfZ4oAS+yJLeFJfc/3Me2k+H6Ddr3yOZ6dv0uHhsvAwVoh3j41SO6afX/GRu9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T20:46:29.536636Z"},"content_sha256":"8bac81de6a7ed284d804f61af0be822d46766c6c1910200d2af84cbb09477c5d","schema_version":"1.0","event_id":"sha256:8bac81de6a7ed284d804f61af0be822d46766c6c1910200d2af84cbb09477c5d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:Z7CBWIZ54C5WYSYPEUYAIJSMFX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MambaRate: Speech Quality Assessment Across Different Sampling Rates","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["eess.AS"],"primary_cat":"cs.SD","authors_text":"Aimilios Chalamandaris, Gunu Jho, Iakovi Alexiou, Inchul Hwang, Junkwang Oh, Panos Kakoulidis, Pirros Tsiakoulis","submitted_at":"2025-07-16T09:53:29Z","abstract_excerpt":"We propose MambaRate, which predicts Mean Opinion Scores (MOS) with limited bias regarding the sampling rate of the waveform under evaluation. It is designed for Track 3 of the AudioMOS Challenge 2025, which focuses on predicting MOS for speech in high sampling frequencies. Our model leverages self-supervised embeddings and selective state space modeling. The target ratings are encoded in a continuous representation via Gaussian radial basis functions (RBF). The results of the challenge were based on the system-level Spearman's Rank Correllation Coefficient (SRCC) metric. An initial MambaRate "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.12090","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/2507.12090/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":"2026-07-05T11:38:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Ork1lWWidig6Nl1imQXJHA0BQcDqoIMMndM4ns9u++4zj6zE9e2/Wx0uoE3RCsQT4UVDlP7eExsg3+prLOMDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T20:46:29.537142Z"},"content_sha256":"0d86cb84246e06161c18cda7fd1ff218cc4a7e163c66dd7c800d4fbe2fc30d4b","schema_version":"1.0","event_id":"sha256:0d86cb84246e06161c18cda7fd1ff218cc4a7e163c66dd7c800d4fbe2fc30d4b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z7CBWIZ54C5WYSYPEUYAIJSMFX/bundle.json","state_url":"https://pith.science/pith/Z7CBWIZ54C5WYSYPEUYAIJSMFX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z7CBWIZ54C5WYSYPEUYAIJSMFX/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":"2026-08-08T20:46:29Z","links":{"resolver":"https://pith.science/pith/Z7CBWIZ54C5WYSYPEUYAIJSMFX","bundle":"https://pith.science/pith/Z7CBWIZ54C5WYSYPEUYAIJSMFX/bundle.json","state":"https://pith.science/pith/Z7CBWIZ54C5WYSYPEUYAIJSMFX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z7CBWIZ54C5WYSYPEUYAIJSMFX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:Z7CBWIZ54C5WYSYPEUYAIJSMFX","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":"0a3c1b6c55c00b8e7e70bb1a9553dde676d4dc83444c1ff88539fe4284bc1444","cross_cats_sorted":["eess.AS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-07-16T09:53:29Z","title_canon_sha256":"a8119a7df90c5938e94eb536fbf13ce14c76704e2cd667a1441a23f555330945"},"schema_version":"1.0","source":{"id":"2507.12090","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.12090","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"arxiv_version","alias_value":"2507.12090v1","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.12090","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"pith_short_12","alias_value":"Z7CBWIZ54C5W","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"pith_short_16","alias_value":"Z7CBWIZ54C5WYSYP","created_at":"2026-07-05T11:38:14Z"},{"alias_kind":"pith_short_8","alias_value":"Z7CBWIZ5","created_at":"2026-07-05T11:38:14Z"}],"graph_snapshots":[{"event_id":"sha256:0d86cb84246e06161c18cda7fd1ff218cc4a7e163c66dd7c800d4fbe2fc30d4b","target":"graph","created_at":"2026-07-05T11:38:14Z","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/2507.12090/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose MambaRate, which predicts Mean Opinion Scores (MOS) with limited bias regarding the sampling rate of the waveform under evaluation. It is designed for Track 3 of the AudioMOS Challenge 2025, which focuses on predicting MOS for speech in high sampling frequencies. Our model leverages self-supervised embeddings and selective state space modeling. The target ratings are encoded in a continuous representation via Gaussian radial basis functions (RBF). The results of the challenge were based on the system-level Spearman's Rank Correllation Coefficient (SRCC) metric. An initial MambaRate ","authors_text":"Aimilios Chalamandaris, Gunu Jho, Iakovi Alexiou, Inchul Hwang, Junkwang Oh, Panos Kakoulidis, Pirros Tsiakoulis","cross_cats":["eess.AS"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-07-16T09:53:29Z","title":"MambaRate: Speech Quality Assessment Across Different Sampling Rates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.12090","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":"sha256:8bac81de6a7ed284d804f61af0be822d46766c6c1910200d2af84cbb09477c5d","target":"record","created_at":"2026-07-05T11:38:14Z","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":"0a3c1b6c55c00b8e7e70bb1a9553dde676d4dc83444c1ff88539fe4284bc1444","cross_cats_sorted":["eess.AS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2025-07-16T09:53:29Z","title_canon_sha256":"a8119a7df90c5938e94eb536fbf13ce14c76704e2cd667a1441a23f555330945"},"schema_version":"1.0","source":{"id":"2507.12090","kind":"arxiv","version":1}},"canonical_sha256":"cfc41b233de0bb6c4b0f253004264c2dc82d7d789f95ee9c5945715b2356eeb6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cfc41b233de0bb6c4b0f253004264c2dc82d7d789f95ee9c5945715b2356eeb6","first_computed_at":"2026-07-05T11:38:14.258823Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:38:14.258823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JL8WK4n6q0tKzXhAJp6ndbOd5MTJVcOp2Qv1D8YWjuhF6nO/aEMpCtGcPkLQbojSz4BgFKeX4lYxFGVIdP3xDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:38:14.259233Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.12090","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8bac81de6a7ed284d804f61af0be822d46766c6c1910200d2af84cbb09477c5d","sha256:0d86cb84246e06161c18cda7fd1ff218cc4a7e163c66dd7c800d4fbe2fc30d4b"],"state_sha256":"15f5f24d3335b92f1b9bf9e79e081e468b3f0758af15baaeacf1fc5ef88e75fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kb12cEdeNPn67X/D7JxtVAcoopklefvyou5xHJzwALz3GAAVsI2oEq54gN1gLgdmIKAZNnNuX1g9H9RQYp6BCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T20:46:29.542265Z","bundle_sha256":"cc9e794ecb7c6e44e1732609dd80ed92d739b2d8636154281242d9e9ee05666f"}}