{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:4QXH26YM6PQK73RKCDH3IOEZIT","short_pith_number":"pith:4QXH26YM","canonical_record":{"source":{"id":"2210.12541","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2022-10-22T20:07:57Z","cross_cats_sorted":["eess.AS"],"title_canon_sha256":"4c476814f2c6a79c179439d37a8adca38d8105294c595e55df63e58c13d704d9","abstract_canon_sha256":"1f81479048b4e21d81440f8e0f051f39b5f718ac0c2754014e045446790aa02c"},"schema_version":"1.0"},"canonical_sha256":"e42e7d7b0cf3e0afee2a10cfb4389944cd7f56f74759d98977499868d45bed01","source":{"kind":"arxiv","id":"2210.12541","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.12541","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"arxiv_version","alias_value":"2210.12541v1","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.12541","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"pith_short_12","alias_value":"4QXH26YM6PQK","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"pith_short_16","alias_value":"4QXH26YM6PQK73RK","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"pith_short_8","alias_value":"4QXH26YM","created_at":"2026-07-05T05:09:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:4QXH26YM6PQK73RKCDH3IOEZIT","target":"record","payload":{"canonical_record":{"source":{"id":"2210.12541","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2022-10-22T20:07:57Z","cross_cats_sorted":["eess.AS"],"title_canon_sha256":"4c476814f2c6a79c179439d37a8adca38d8105294c595e55df63e58c13d704d9","abstract_canon_sha256":"1f81479048b4e21d81440f8e0f051f39b5f718ac0c2754014e045446790aa02c"},"schema_version":"1.0"},"canonical_sha256":"e42e7d7b0cf3e0afee2a10cfb4389944cd7f56f74759d98977499868d45bed01","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:09:29.563614Z","signature_b64":"SWSu+h5sbdTsiQpvJIy5uSGfLpELvt6FnOkV+DR0duoXcfVF5CblvRJr7hMRqU54TLs1oG8sUV6Ismi7W0A+BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e42e7d7b0cf3e0afee2a10cfb4389944cd7f56f74759d98977499868d45bed01","last_reissued_at":"2026-07-05T05:09:29.563276Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:09:29.563276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2210.12541","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":"2026-07-05T05:09:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sv4WU3HtkY7p44l/Grer3azTLZY6KsxFlNx9r/VDSbyao1IoPD9cHRQYdWRaB1RSP7ZbKfF2uWKL15sDtRVDCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T07:49:21.531211Z"},"content_sha256":"2d02f82396921146831d695dbf7e2af20e4d4f3299d1723195cdf943649719b2","schema_version":"1.0","event_id":"sha256:2d02f82396921146831d695dbf7e2af20e4d4f3299d1723195cdf943649719b2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:4QXH26YM6PQK73RKCDH3IOEZIT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"GCT: Gated Contextual Transformer for Sequential Audio Tagging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.AS"],"primary_cat":"cs.SD","authors_text":"Dick Botteldooren, Wenwu Wang, Yuanbo Hou, Yun Wang","submitted_at":"2022-10-22T20:07:57Z","abstract_excerpt":"Audio tagging aims to assign predefined tags to audio clips to indicate the class information of audio events. Sequential audio tagging (SAT) means detecting both the class information of audio events, and the order in which they occur within the audio clip. Most existing methods for SAT are based on connectionist temporal classification (CTC). However, CTC cannot effectively capture connections between events due to the conditional independence assumption between outputs at different times. The contextual Transformer (cTransformer) addresses this issue by exploiting contextual information in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.12541","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/2210.12541/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":"2026-07-05T05:09:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a+0X1wzdoF6u6KxhNgTpHA3oFOHZsDIRDptL9x+ibIGf71L23B22lQZwE9Vuxe9WPSrffR6slTG01oZ2IfvLCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T07:49:21.531754Z"},"content_sha256":"552a248a5df7c79b63231637e5fc6eb0e7740e575802b14eb4597f55548e9a7f","schema_version":"1.0","event_id":"sha256:552a248a5df7c79b63231637e5fc6eb0e7740e575802b14eb4597f55548e9a7f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4QXH26YM6PQK73RKCDH3IOEZIT/bundle.json","state_url":"https://pith.science/pith/4QXH26YM6PQK73RKCDH3IOEZIT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4QXH26YM6PQK73RKCDH3IOEZIT/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":"2026-08-01T07:49:21Z","links":{"resolver":"https://pith.science/pith/4QXH26YM6PQK73RKCDH3IOEZIT","bundle":"https://pith.science/pith/4QXH26YM6PQK73RKCDH3IOEZIT/bundle.json","state":"https://pith.science/pith/4QXH26YM6PQK73RKCDH3IOEZIT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4QXH26YM6PQK73RKCDH3IOEZIT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:4QXH26YM6PQK73RKCDH3IOEZIT","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":"1f81479048b4e21d81440f8e0f051f39b5f718ac0c2754014e045446790aa02c","cross_cats_sorted":["eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2022-10-22T20:07:57Z","title_canon_sha256":"4c476814f2c6a79c179439d37a8adca38d8105294c595e55df63e58c13d704d9"},"schema_version":"1.0","source":{"id":"2210.12541","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.12541","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"arxiv_version","alias_value":"2210.12541v1","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.12541","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"pith_short_12","alias_value":"4QXH26YM6PQK","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"pith_short_16","alias_value":"4QXH26YM6PQK73RK","created_at":"2026-07-05T05:09:29Z"},{"alias_kind":"pith_short_8","alias_value":"4QXH26YM","created_at":"2026-07-05T05:09:29Z"}],"graph_snapshots":[{"event_id":"sha256:552a248a5df7c79b63231637e5fc6eb0e7740e575802b14eb4597f55548e9a7f","target":"graph","created_at":"2026-07-05T05:09:29Z","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/2210.12541/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Audio tagging aims to assign predefined tags to audio clips to indicate the class information of audio events. Sequential audio tagging (SAT) means detecting both the class information of audio events, and the order in which they occur within the audio clip. Most existing methods for SAT are based on connectionist temporal classification (CTC). However, CTC cannot effectively capture connections between events due to the conditional independence assumption between outputs at different times. The contextual Transformer (cTransformer) addresses this issue by exploiting contextual information in ","authors_text":"Dick Botteldooren, Wenwu Wang, Yuanbo Hou, Yun Wang","cross_cats":["eess.AS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2022-10-22T20:07:57Z","title":"GCT: Gated Contextual Transformer for Sequential Audio Tagging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.12541","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":"sha256:2d02f82396921146831d695dbf7e2af20e4d4f3299d1723195cdf943649719b2","target":"record","created_at":"2026-07-05T05:09:29Z","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":"1f81479048b4e21d81440f8e0f051f39b5f718ac0c2754014e045446790aa02c","cross_cats_sorted":["eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2022-10-22T20:07:57Z","title_canon_sha256":"4c476814f2c6a79c179439d37a8adca38d8105294c595e55df63e58c13d704d9"},"schema_version":"1.0","source":{"id":"2210.12541","kind":"arxiv","version":1}},"canonical_sha256":"e42e7d7b0cf3e0afee2a10cfb4389944cd7f56f74759d98977499868d45bed01","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e42e7d7b0cf3e0afee2a10cfb4389944cd7f56f74759d98977499868d45bed01","first_computed_at":"2026-07-05T05:09:29.563276Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:09:29.563276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SWSu+h5sbdTsiQpvJIy5uSGfLpELvt6FnOkV+DR0duoXcfVF5CblvRJr7hMRqU54TLs1oG8sUV6Ismi7W0A+BA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:09:29.563614Z","signed_message":"canonical_sha256_bytes"},"source_id":"2210.12541","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d02f82396921146831d695dbf7e2af20e4d4f3299d1723195cdf943649719b2","sha256:552a248a5df7c79b63231637e5fc6eb0e7740e575802b14eb4597f55548e9a7f"],"state_sha256":"74f3cb891e40d5ba9fd4168c0e609378294b70153e994e052b3e070a2b566480"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eJ+0Ir7CucTkg+FIrbHEY7TCA1huL1OqJyWzqfUe6lMfQTRBrN1vghRKBkUc1KfsIWVc+WABbUdM8OF0gDNQDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T07:49:21.536822Z","bundle_sha256":"fbb90e23d5a30928d72755378054fae91dfd262a92e0c2c0715897622ff5389f"}}