{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:CCA2FMOJD3B3THNM5FBEZ46UH4","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":"06dc03c855dd1ad68bff65f8fb80ad9b31ef30a94b5166b71071f27269fe19a1","cross_cats_sorted":["eess.AS"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.SD","submitted_at":"2021-04-23T13:39:44Z","title_canon_sha256":"9bfbf851a751ce99cdf9164d15cb785bc98e6ecb85f723d2be07b3e5bfd25c20"},"schema_version":"1.0","source":{"id":"2104.11587","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.11587","created_at":"2026-07-05T02:34:33Z"},{"alias_kind":"arxiv_version","alias_value":"2104.11587v1","created_at":"2026-07-05T02:34:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.11587","created_at":"2026-07-05T02:34:33Z"},{"alias_kind":"pith_short_12","alias_value":"CCA2FMOJD3B3","created_at":"2026-07-05T02:34:33Z"},{"alias_kind":"pith_short_16","alias_value":"CCA2FMOJD3B3THNM","created_at":"2026-07-05T02:34:33Z"},{"alias_kind":"pith_short_8","alias_value":"CCA2FMOJ","created_at":"2026-07-05T02:34:33Z"}],"graph_snapshots":[{"event_id":"sha256:82cc8079999245758ac1cfd8100b8696ebf5f34686f762f190a5f5b7358fc940","target":"graph","created_at":"2026-07-05T02:34:33Z","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/2104.11587/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Environmental Sound Classification (ESC) is a rapidly evolving field that recently demonstrated the advantages of application of visual domain techniques to the audio-related tasks. Previous studies indicate that the domain-specific modification of cross-domain approaches show a promise in pushing the whole area of ESC forward.\n  In this paper, we present a new time-frequency transformation layer that is based on complex frequency B-spline (fbsp) wavelets. Being used with a high-performance audio classification model, the proposed fbsp-layer provides an accuracy improvement over the previously","authors_text":"Andreas Dengel, Andrey Guzhov, Federico Raue, J\\\"orn Hees","cross_cats":["eess.AS"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.SD","submitted_at":"2021-04-23T13:39:44Z","title":"ESResNe(X)t-fbsp: Learning Robust Time-Frequency Transformation of Audio"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.11587","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":"sha256:0e448b3bda029cb304b8bc59ad5afc0572da96f1f297f2ef7197fa7363dc11a1","target":"record","created_at":"2026-07-05T02:34:33Z","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":"06dc03c855dd1ad68bff65f8fb80ad9b31ef30a94b5166b71071f27269fe19a1","cross_cats_sorted":["eess.AS"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.SD","submitted_at":"2021-04-23T13:39:44Z","title_canon_sha256":"9bfbf851a751ce99cdf9164d15cb785bc98e6ecb85f723d2be07b3e5bfd25c20"},"schema_version":"1.0","source":{"id":"2104.11587","kind":"arxiv","version":1}},"canonical_sha256":"1081a2b1c91ec3b99dace9424cf3d43f3b98e923e9572e2fbc11521e650e011e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1081a2b1c91ec3b99dace9424cf3d43f3b98e923e9572e2fbc11521e650e011e","first_computed_at":"2026-07-05T02:34:33.411544Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:34:33.411544Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K/DavsuJx151EqR3oKe9C0NrdCg1tOdz0bUisa2Gk54AzC74vk0pJiFpUuc8wMmA1tb1ONu2BOVeyRezuIWpDA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:34:33.412079Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.11587","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e448b3bda029cb304b8bc59ad5afc0572da96f1f297f2ef7197fa7363dc11a1","sha256:82cc8079999245758ac1cfd8100b8696ebf5f34686f762f190a5f5b7358fc940"],"state_sha256":"85622ce922eb1adb137eefe5596caa0b1b46ae8db80f1274ad5ada9b67882b63"}