{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:JOGIUH55XMAO6KYYULTDRIHOHB","short_pith_number":"pith:JOGIUH55","canonical_record":{"source":{"id":"2606.01009","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2026-05-31T04:53:12Z","cross_cats_sorted":[],"title_canon_sha256":"381c56dc6b7beb57288ed448050fa4eed8d8fb61b47b1de4d80d077c292d0b32","abstract_canon_sha256":"5578bc5ac3d7a6097fb065f9af73931c1125e5ef046f52480cd82fff8f282d1b"},"schema_version":"1.0"},"canonical_sha256":"4b8c8a1fbdbb00ef2b18a2e638a0ee38661bfaef8c99dab6dcd8412b9e5a9648","source":{"kind":"arxiv","id":"2606.01009","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.01009","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"arxiv_version","alias_value":"2606.01009v1","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.01009","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"pith_short_12","alias_value":"JOGIUH55XMAO","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"pith_short_16","alias_value":"JOGIUH55XMAO6KYY","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"pith_short_8","alias_value":"JOGIUH55","created_at":"2026-06-02T01:04:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:JOGIUH55XMAO6KYYULTDRIHOHB","target":"record","payload":{"canonical_record":{"source":{"id":"2606.01009","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2026-05-31T04:53:12Z","cross_cats_sorted":[],"title_canon_sha256":"381c56dc6b7beb57288ed448050fa4eed8d8fb61b47b1de4d80d077c292d0b32","abstract_canon_sha256":"5578bc5ac3d7a6097fb065f9af73931c1125e5ef046f52480cd82fff8f282d1b"},"schema_version":"1.0"},"canonical_sha256":"4b8c8a1fbdbb00ef2b18a2e638a0ee38661bfaef8c99dab6dcd8412b9e5a9648","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-02T01:04:18.264050Z","signature_b64":"AJNthegyCz5cshJ03/63ip5eeS3AmJKb8clJAcUJ7MxKvE6vaSRLFUgn5jF0PCr2yYOBFcRSh0rYL6hSFzS3CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b8c8a1fbdbb00ef2b18a2e638a0ee38661bfaef8c99dab6dcd8412b9e5a9648","last_reissued_at":"2026-06-02T01:04:18.263576Z","signature_status":"signed_v1","first_computed_at":"2026-06-02T01:04:18.263576Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.01009","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":"2026-06-02T01:04:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ib6FPIf+YN+JogJVTnsqhwKjDeEu4u66KEMvwOEodTOrh72unUwSOD3AsLuF5OFxYrYJ98Il/FaZ1IxwYUlDBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:01:58.358461Z"},"content_sha256":"c3ad8cba8be7492bcf493e53e25cf7566499a241c656c40d85e2ffb87eb352b4","schema_version":"1.0","event_id":"sha256:c3ad8cba8be7492bcf493e53e25cf7566499a241c656c40d85e2ffb87eb352b4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:JOGIUH55XMAO6KYYULTDRIHOHB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MelT: GEMM-Native NDFT for Efficient Single-Stage Audio Frontends on Modern Accelerators","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.SD","authors_text":"Augusto Camargo, Marcelo Finger","submitted_at":"2026-05-31T04:53:12Z","abstract_excerpt":"Modern audio processing networks are commonly deployed on accelerators whose peak throughput is obtained through dense linear algebra, whereas conventional acoustic frontends -- a Short-Time Fourier Transform (STFT) followed by sparse Mel aggregation -- remain structurally heterogeneous. This mismatch can introduce memory-bandwidth, dispatch, and intermediate-allocation overheads on contemporary accelerator backends. This work introduces MelT, a single-stage frontend framework in which Mel-spaced Non-Uniform Discrete Fourier Transform (NDFT) bases are precomputed and applied to time-domain aco"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.01009","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/2606.01009/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":"2026-06-02T01:04:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k5+lPA1oqGGxLNBLk872VqEPNMF4yhYi7Dx953kRG1ijGCdEw3hZtMfax049Fkr+FJ9/KQlBlLvRub5R9ictAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:01:58.358828Z"},"content_sha256":"091e46a654f3c0ae1faf70f499f5090bc20bfd7efc0e2608f310fa0e6064eca3","schema_version":"1.0","event_id":"sha256:091e46a654f3c0ae1faf70f499f5090bc20bfd7efc0e2608f310fa0e6064eca3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JOGIUH55XMAO6KYYULTDRIHOHB/bundle.json","state_url":"https://pith.science/pith/JOGIUH55XMAO6KYYULTDRIHOHB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JOGIUH55XMAO6KYYULTDRIHOHB/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":"2026-07-07T06:01:58Z","links":{"resolver":"https://pith.science/pith/JOGIUH55XMAO6KYYULTDRIHOHB","bundle":"https://pith.science/pith/JOGIUH55XMAO6KYYULTDRIHOHB/bundle.json","state":"https://pith.science/pith/JOGIUH55XMAO6KYYULTDRIHOHB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JOGIUH55XMAO6KYYULTDRIHOHB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JOGIUH55XMAO6KYYULTDRIHOHB","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":"5578bc5ac3d7a6097fb065f9af73931c1125e5ef046f52480cd82fff8f282d1b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2026-05-31T04:53:12Z","title_canon_sha256":"381c56dc6b7beb57288ed448050fa4eed8d8fb61b47b1de4d80d077c292d0b32"},"schema_version":"1.0","source":{"id":"2606.01009","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.01009","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"arxiv_version","alias_value":"2606.01009v1","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.01009","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"pith_short_12","alias_value":"JOGIUH55XMAO","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"pith_short_16","alias_value":"JOGIUH55XMAO6KYY","created_at":"2026-06-02T01:04:18Z"},{"alias_kind":"pith_short_8","alias_value":"JOGIUH55","created_at":"2026-06-02T01:04:18Z"}],"graph_snapshots":[{"event_id":"sha256:091e46a654f3c0ae1faf70f499f5090bc20bfd7efc0e2608f310fa0e6064eca3","target":"graph","created_at":"2026-06-02T01:04:18Z","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/2606.01009/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Modern audio processing networks are commonly deployed on accelerators whose peak throughput is obtained through dense linear algebra, whereas conventional acoustic frontends -- a Short-Time Fourier Transform (STFT) followed by sparse Mel aggregation -- remain structurally heterogeneous. This mismatch can introduce memory-bandwidth, dispatch, and intermediate-allocation overheads on contemporary accelerator backends. This work introduces MelT, a single-stage frontend framework in which Mel-spaced Non-Uniform Discrete Fourier Transform (NDFT) bases are precomputed and applied to time-domain aco","authors_text":"Augusto Camargo, Marcelo Finger","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2026-05-31T04:53:12Z","title":"MelT: GEMM-Native NDFT for Efficient Single-Stage Audio Frontends on Modern Accelerators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.01009","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:c3ad8cba8be7492bcf493e53e25cf7566499a241c656c40d85e2ffb87eb352b4","target":"record","created_at":"2026-06-02T01:04:18Z","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":"5578bc5ac3d7a6097fb065f9af73931c1125e5ef046f52480cd82fff8f282d1b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2026-05-31T04:53:12Z","title_canon_sha256":"381c56dc6b7beb57288ed448050fa4eed8d8fb61b47b1de4d80d077c292d0b32"},"schema_version":"1.0","source":{"id":"2606.01009","kind":"arxiv","version":1}},"canonical_sha256":"4b8c8a1fbdbb00ef2b18a2e638a0ee38661bfaef8c99dab6dcd8412b9e5a9648","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b8c8a1fbdbb00ef2b18a2e638a0ee38661bfaef8c99dab6dcd8412b9e5a9648","first_computed_at":"2026-06-02T01:04:18.263576Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-02T01:04:18.263576Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AJNthegyCz5cshJ03/63ip5eeS3AmJKb8clJAcUJ7MxKvE6vaSRLFUgn5jF0PCr2yYOBFcRSh0rYL6hSFzS3CQ==","signature_status":"signed_v1","signed_at":"2026-06-02T01:04:18.264050Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.01009","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3ad8cba8be7492bcf493e53e25cf7566499a241c656c40d85e2ffb87eb352b4","sha256:091e46a654f3c0ae1faf70f499f5090bc20bfd7efc0e2608f310fa0e6064eca3"],"state_sha256":"b30b35ee715c3caa9d87180ac9bcced7ead4e932b7f0b7f3fbd1faf7a15ccdc7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YmfT5KgvFNpnRi8WLobdjdfndobMq/Jlr0+dWrxlmoXCJHMCNY17JPlXj/IP0OscLcfUSl5xWhRePd5+uq9DDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T06:01:58.360795Z","bundle_sha256":"e4e341b671cb3ce150d635e4b07a25f8a91421df8104f21572768a623d18af62"}}