{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:572OY3LFLZVYINBOJZVKDDUQEY","short_pith_number":"pith:572OY3LF","canonical_record":{"source":{"id":"1808.00563","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-01T21:00:50Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"3facf73e9cf81399cd042e932363a012c7936c1fd52d151a7eee6b91647da2d6","abstract_canon_sha256":"0f84fb9bf9e9e8636b0bb7f4ded5b84efb76a9ff033aac6693ead2cf34f1dd59"},"schema_version":"1.0"},"canonical_sha256":"eff4ec6d655e6b84342e4e6aa18e90262e0db340be1337765ef6566737b63267","source":{"kind":"arxiv","id":"1808.00563","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.00563","created_at":"2026-05-18T00:09:04Z"},{"alias_kind":"arxiv_version","alias_value":"1808.00563v1","created_at":"2026-05-18T00:09:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.00563","created_at":"2026-05-18T00:09:04Z"},{"alias_kind":"pith_short_12","alias_value":"572OY3LFLZVY","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"572OY3LFLZVYINBO","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"572OY3LF","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:572OY3LFLZVYINBOJZVKDDUQEY","target":"record","payload":{"canonical_record":{"source":{"id":"1808.00563","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-01T21:00:50Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"3facf73e9cf81399cd042e932363a012c7936c1fd52d151a7eee6b91647da2d6","abstract_canon_sha256":"0f84fb9bf9e9e8636b0bb7f4ded5b84efb76a9ff033aac6693ead2cf34f1dd59"},"schema_version":"1.0"},"canonical_sha256":"eff4ec6d655e6b84342e4e6aa18e90262e0db340be1337765ef6566737b63267","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:04.907070Z","signature_b64":"Xoy3uW63pZcazpvYyFE6yKRChNZwW2q1SJCJOLz8M0t4SwcMqUBdrzKqNkO8f7W3vEyJD6+EH2Twl+tYwPGcAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eff4ec6d655e6b84342e4e6aa18e90262e0db340be1337765ef6566737b63267","last_reissued_at":"2026-05-18T00:09:04.906395Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:04.906395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.00563","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":"2026-05-18T00:09:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O5ws/V/qQrZvWpqLT+vNA8dvIvwGy/2im14bCngvw2ffi/4gwdQIx6lLdPky21I/1Mqx8fin0oE3pREsaJOxCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:19:58.379847Z"},"content_sha256":"d2eaf79747c1562170c7239388058a1e7be73785d06ddff45025666d14cb9975","schema_version":"1.0","event_id":"sha256:d2eaf79747c1562170c7239388058a1e7be73785d06ddff45025666d14cb9975"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:572OY3LFLZVYINBOJZVKDDUQEY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Data Augmentation for Robust Keyword Spotting under Playback Interference","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","stat.ML"],"primary_cat":"cs.CL","authors_text":"Anirudh Raju, Arindam Mandal, Nikko Strom, Sankaran Panchapagesan, Xing Liu","submitted_at":"2018-08-01T21:00:50Z","abstract_excerpt":"Accurate on-device keyword spotting (KWS) with low false accept and false reject rate is crucial to customer experience for far-field voice control of conversational agents. It is particularly challenging to maintain low false reject rate in real world conditions where there is (a) ambient noise from external sources such as TV, household appliances, or other speech that is not directed at the device (b) imperfect cancellation of the audio playback from the device, resulting in residual echo, after being processed by the Acoustic Echo Cancellation (AEC) system. In this paper, we propose a data"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.00563","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":""},"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":"2026-05-18T00:09:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F2L5XEbDIYMUMTNG2/RWuDIXlAyY05Dy8LWvl2bFLlBsuflPpmlxZ3ACoxHTfbAaE1VrFi22lfWLwsYIymPkCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:19:58.380531Z"},"content_sha256":"9d4c885ea26df77e3e08d04c7bd810e6d2bb1e8e2d01d187c5ed370da1ab4698","schema_version":"1.0","event_id":"sha256:9d4c885ea26df77e3e08d04c7bd810e6d2bb1e8e2d01d187c5ed370da1ab4698"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/572OY3LFLZVYINBOJZVKDDUQEY/bundle.json","state_url":"https://pith.science/pith/572OY3LFLZVYINBOJZVKDDUQEY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/572OY3LFLZVYINBOJZVKDDUQEY/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":"2026-05-31T02:19:58Z","links":{"resolver":"https://pith.science/pith/572OY3LFLZVYINBOJZVKDDUQEY","bundle":"https://pith.science/pith/572OY3LFLZVYINBOJZVKDDUQEY/bundle.json","state":"https://pith.science/pith/572OY3LFLZVYINBOJZVKDDUQEY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/572OY3LFLZVYINBOJZVKDDUQEY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:572OY3LFLZVYINBOJZVKDDUQEY","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":"0f84fb9bf9e9e8636b0bb7f4ded5b84efb76a9ff033aac6693ead2cf34f1dd59","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-01T21:00:50Z","title_canon_sha256":"3facf73e9cf81399cd042e932363a012c7936c1fd52d151a7eee6b91647da2d6"},"schema_version":"1.0","source":{"id":"1808.00563","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.00563","created_at":"2026-05-18T00:09:04Z"},{"alias_kind":"arxiv_version","alias_value":"1808.00563v1","created_at":"2026-05-18T00:09:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.00563","created_at":"2026-05-18T00:09:04Z"},{"alias_kind":"pith_short_12","alias_value":"572OY3LFLZVY","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"572OY3LFLZVYINBO","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"572OY3LF","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:9d4c885ea26df77e3e08d04c7bd810e6d2bb1e8e2d01d187c5ed370da1ab4698","target":"graph","created_at":"2026-05-18T00:09:04Z","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"},"paper":{"abstract_excerpt":"Accurate on-device keyword spotting (KWS) with low false accept and false reject rate is crucial to customer experience for far-field voice control of conversational agents. It is particularly challenging to maintain low false reject rate in real world conditions where there is (a) ambient noise from external sources such as TV, household appliances, or other speech that is not directed at the device (b) imperfect cancellation of the audio playback from the device, resulting in residual echo, after being processed by the Acoustic Echo Cancellation (AEC) system. In this paper, we propose a data","authors_text":"Anirudh Raju, Arindam Mandal, Nikko Strom, Sankaran Panchapagesan, Xing Liu","cross_cats":["cs.LG","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-01T21:00:50Z","title":"Data Augmentation for Robust Keyword Spotting under Playback Interference"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.00563","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:d2eaf79747c1562170c7239388058a1e7be73785d06ddff45025666d14cb9975","target":"record","created_at":"2026-05-18T00:09:04Z","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":"0f84fb9bf9e9e8636b0bb7f4ded5b84efb76a9ff033aac6693ead2cf34f1dd59","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-01T21:00:50Z","title_canon_sha256":"3facf73e9cf81399cd042e932363a012c7936c1fd52d151a7eee6b91647da2d6"},"schema_version":"1.0","source":{"id":"1808.00563","kind":"arxiv","version":1}},"canonical_sha256":"eff4ec6d655e6b84342e4e6aa18e90262e0db340be1337765ef6566737b63267","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eff4ec6d655e6b84342e4e6aa18e90262e0db340be1337765ef6566737b63267","first_computed_at":"2026-05-18T00:09:04.906395Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:04.906395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Xoy3uW63pZcazpvYyFE6yKRChNZwW2q1SJCJOLz8M0t4SwcMqUBdrzKqNkO8f7W3vEyJD6+EH2Twl+tYwPGcAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:04.907070Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.00563","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2eaf79747c1562170c7239388058a1e7be73785d06ddff45025666d14cb9975","sha256:9d4c885ea26df77e3e08d04c7bd810e6d2bb1e8e2d01d187c5ed370da1ab4698"],"state_sha256":"0399691757180e7351a0baeea4317666b19ef69fcb9339a2129edbd72e1d85f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tnKvdd4V53KX0o6LU4WpDQnAC2NjqHBze5DKE9MhLzwr72n47Y63kYesSwlqaHDLhEJaCpe+MdpkWtboEzXpDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T02:19:58.383613Z","bundle_sha256":"2b3e39b68cb012ea13f86c86b02317f6400796bac6407049f40956e7c24a5707"}}