{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:77UT6JO5ZWDMV7C5SMAPLHFDJM","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":"d950054cccd3a30f6cbb64178f696c6522227f956a852d36d731524423d34dd6","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2016-02-18T05:49:37Z","title_canon_sha256":"d8873d602f2d58a79a1b4a28795522632572e32a359e9483e461f4bbfe5fdfeb"},"schema_version":"1.0","source":{"id":"1602.05682","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.05682","created_at":"2026-05-18T01:16:09Z"},{"alias_kind":"arxiv_version","alias_value":"1602.05682v2","created_at":"2026-05-18T01:16:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.05682","created_at":"2026-05-18T01:16:09Z"},{"alias_kind":"pith_short_12","alias_value":"77UT6JO5ZWDM","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"77UT6JO5ZWDMV7C5","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"77UT6JO5","created_at":"2026-05-18T12:30:04Z"}],"graph_snapshots":[{"event_id":"sha256:09c1a958a15a643009611545c844e5ff64ec11e72ac006d438f152686b2323be","target":"graph","created_at":"2026-05-18T01:16:09Z","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":"In this paper we present a research on identification of audio recording devices from background noise, thus providing a method for forensics. The audio signal is the sum of speech signal and noise signal. Usually, people pay more attention to speech signal, because it carries the information to deliver. So a great amount of researches have been dedicated to getting higher Signal-Noise-Ratio (SNR). There are many speech enhancement algorithms to improve the quality of the speech, which can be seen as reducing the noise. However, noises can be regarded as the intrinsic fingerprint traces of an ","authors_text":"Shaopei Shi, Simeng Qi, Yan Li, Zheng Huang","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2016-02-18T05:49:37Z","title":"Audio Recording Device Identification Based on Deep Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.05682","kind":"arxiv","version":2},"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":"sha256:03c70493936509741863b00cb487e26eb98ba20a614283b4c338912060c8207e","target":"record","created_at":"2026-05-18T01:16:09Z","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":"d950054cccd3a30f6cbb64178f696c6522227f956a852d36d731524423d34dd6","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2016-02-18T05:49:37Z","title_canon_sha256":"d8873d602f2d58a79a1b4a28795522632572e32a359e9483e461f4bbfe5fdfeb"},"schema_version":"1.0","source":{"id":"1602.05682","kind":"arxiv","version":2}},"canonical_sha256":"ffe93f25ddcd86cafc5d9300f59ca34b1c66e94002e5de1a27416f8ffb367828","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ffe93f25ddcd86cafc5d9300f59ca34b1c66e94002e5de1a27416f8ffb367828","first_computed_at":"2026-05-18T01:16:09.212373Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:16:09.212373Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BOI/NXuuw+nxQ0RPAEm749zP6EGVwTwVTavj+8wZEarNbxIszSZwao3bMAPWrXiMiHy37w71DI7ca/mvCMJ0Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:16:09.213084Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.05682","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03c70493936509741863b00cb487e26eb98ba20a614283b4c338912060c8207e","sha256:09c1a958a15a643009611545c844e5ff64ec11e72ac006d438f152686b2323be"],"state_sha256":"eadf2a0ab95e25bdd2740d0663f58d337307a1ba212ce61dfc644dca3440a6a4"}