{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:NTUDTYZX752HIYAR3PM6ZARUXX","short_pith_number":"pith:NTUDTYZX","canonical_record":{"source":{"id":"2007.13118","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2020-07-26T12:32:34Z","cross_cats_sorted":["cs.CV","cs.SD"],"title_canon_sha256":"84a470196e0182fde297c9ff1709fc8d30d0c968b55fead8cc4388cc44d9d8d1","abstract_canon_sha256":"0cec5da276f32d567e0943341af404f731451d5e1caae73c1a4945f3e1f22cfb"},"schema_version":"1.0"},"canonical_sha256":"6ce839e337ff74746011dbd9ec8234bdf971d4ac764561a92e3f8c0006c70594","source":{"kind":"arxiv","id":"2007.13118","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.13118","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"arxiv_version","alias_value":"2007.13118v1","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.13118","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"pith_short_12","alias_value":"NTUDTYZX752H","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"pith_short_16","alias_value":"NTUDTYZX752HIYAR","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"pith_short_8","alias_value":"NTUDTYZX","created_at":"2026-07-05T01:22:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:NTUDTYZX752HIYAR3PM6ZARUXX","target":"record","payload":{"canonical_record":{"source":{"id":"2007.13118","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2020-07-26T12:32:34Z","cross_cats_sorted":["cs.CV","cs.SD"],"title_canon_sha256":"84a470196e0182fde297c9ff1709fc8d30d0c968b55fead8cc4388cc44d9d8d1","abstract_canon_sha256":"0cec5da276f32d567e0943341af404f731451d5e1caae73c1a4945f3e1f22cfb"},"schema_version":"1.0"},"canonical_sha256":"6ce839e337ff74746011dbd9ec8234bdf971d4ac764561a92e3f8c0006c70594","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:22:06.824911Z","signature_b64":"VAxAMtC3mH5gH1ZV5ONQEOc46lhnlw/SvzyAM1ACa0BanZ4gJDuEpiKtJQZ0zvRqkRBnOtAi3kC0w7ttnuEXBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6ce839e337ff74746011dbd9ec8234bdf971d4ac764561a92e3f8c0006c70594","last_reissued_at":"2026-07-05T01:22:06.824509Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:22:06.824509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.13118","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":"2026-07-05T01:22:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mE83aZYIxLOVcEg7Ke6i0Odpsd2s14zJnvIZPkL+2OE9scFUHws211WtBviNvnz3PuouzZz59bJAQHsFEF/GDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T02:05:48.169903Z"},"content_sha256":"d5dbb3f1c5da006f2cf980925263805de64927a1c034302f1ad76de00f88ed74","schema_version":"1.0","event_id":"sha256:d5dbb3f1c5da006f2cf980925263805de64927a1c034302f1ad76de00f88ed74"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:NTUDTYZX752HIYAR3PM6ZARUXX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"UIAI System for Short-Duration Speaker Verification Challenge 2020","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV","cs.SD"],"primary_cat":"eess.AS","authors_text":"Achintya Kumar Sarkar, Emmanuel Vincent, Md Sahidullah, Romain Serizel, Tomi Kinnunen, Ville Vestman, Xuechen Liu, Zheng-Hua Tan","submitted_at":"2020-07-26T12:32:34Z","abstract_excerpt":"In this work, we present the system description of the UIAI entry for the short-duration speaker verification (SdSV) challenge 2020. Our focus is on Task 1 dedicated to text-dependent speaker verification. We investigate different feature extraction and modeling approaches for automatic speaker verification (ASV) and utterance verification (UV). We have also studied different fusion strategies for combining UV and ASV modules. Our primary submission to the challenge is the fusion of seven subsystems which yields a normalized minimum detection cost function (minDCF) of 0.072 and an equal error "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.13118","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/2007.13118/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":"2026-07-05T01:22:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3eKqBccm9nGljZagGAN0ZX944e7zxFUVOkfZijiy5ZwaoVwfP8ClS4FgAh2dHQT80wpD2R888zSQpRa+GcAkAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T02:05:48.170274Z"},"content_sha256":"4fbf35a60c029ea777740e30f9b7a9a380284d13a156135dd7c9763d94e2b652","schema_version":"1.0","event_id":"sha256:4fbf35a60c029ea777740e30f9b7a9a380284d13a156135dd7c9763d94e2b652"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NTUDTYZX752HIYAR3PM6ZARUXX/bundle.json","state_url":"https://pith.science/pith/NTUDTYZX752HIYAR3PM6ZARUXX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NTUDTYZX752HIYAR3PM6ZARUXX/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":"2026-07-21T02:05:48Z","links":{"resolver":"https://pith.science/pith/NTUDTYZX752HIYAR3PM6ZARUXX","bundle":"https://pith.science/pith/NTUDTYZX752HIYAR3PM6ZARUXX/bundle.json","state":"https://pith.science/pith/NTUDTYZX752HIYAR3PM6ZARUXX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NTUDTYZX752HIYAR3PM6ZARUXX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:NTUDTYZX752HIYAR3PM6ZARUXX","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":"0cec5da276f32d567e0943341af404f731451d5e1caae73c1a4945f3e1f22cfb","cross_cats_sorted":["cs.CV","cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2020-07-26T12:32:34Z","title_canon_sha256":"84a470196e0182fde297c9ff1709fc8d30d0c968b55fead8cc4388cc44d9d8d1"},"schema_version":"1.0","source":{"id":"2007.13118","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.13118","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"arxiv_version","alias_value":"2007.13118v1","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.13118","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"pith_short_12","alias_value":"NTUDTYZX752H","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"pith_short_16","alias_value":"NTUDTYZX752HIYAR","created_at":"2026-07-05T01:22:06Z"},{"alias_kind":"pith_short_8","alias_value":"NTUDTYZX","created_at":"2026-07-05T01:22:06Z"}],"graph_snapshots":[{"event_id":"sha256:4fbf35a60c029ea777740e30f9b7a9a380284d13a156135dd7c9763d94e2b652","target":"graph","created_at":"2026-07-05T01:22:06Z","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/2007.13118/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we present the system description of the UIAI entry for the short-duration speaker verification (SdSV) challenge 2020. Our focus is on Task 1 dedicated to text-dependent speaker verification. We investigate different feature extraction and modeling approaches for automatic speaker verification (ASV) and utterance verification (UV). We have also studied different fusion strategies for combining UV and ASV modules. Our primary submission to the challenge is the fusion of seven subsystems which yields a normalized minimum detection cost function (minDCF) of 0.072 and an equal error ","authors_text":"Achintya Kumar Sarkar, Emmanuel Vincent, Md Sahidullah, Romain Serizel, Tomi Kinnunen, Ville Vestman, Xuechen Liu, Zheng-Hua Tan","cross_cats":["cs.CV","cs.SD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2020-07-26T12:32:34Z","title":"UIAI System for Short-Duration Speaker Verification Challenge 2020"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.13118","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:d5dbb3f1c5da006f2cf980925263805de64927a1c034302f1ad76de00f88ed74","target":"record","created_at":"2026-07-05T01:22:06Z","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":"0cec5da276f32d567e0943341af404f731451d5e1caae73c1a4945f3e1f22cfb","cross_cats_sorted":["cs.CV","cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2020-07-26T12:32:34Z","title_canon_sha256":"84a470196e0182fde297c9ff1709fc8d30d0c968b55fead8cc4388cc44d9d8d1"},"schema_version":"1.0","source":{"id":"2007.13118","kind":"arxiv","version":1}},"canonical_sha256":"6ce839e337ff74746011dbd9ec8234bdf971d4ac764561a92e3f8c0006c70594","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6ce839e337ff74746011dbd9ec8234bdf971d4ac764561a92e3f8c0006c70594","first_computed_at":"2026-07-05T01:22:06.824509Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:22:06.824509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VAxAMtC3mH5gH1ZV5ONQEOc46lhnlw/SvzyAM1ACa0BanZ4gJDuEpiKtJQZ0zvRqkRBnOtAi3kC0w7ttnuEXBA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:22:06.824911Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.13118","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d5dbb3f1c5da006f2cf980925263805de64927a1c034302f1ad76de00f88ed74","sha256:4fbf35a60c029ea777740e30f9b7a9a380284d13a156135dd7c9763d94e2b652"],"state_sha256":"d0fe6f92a5c36d813c3c2886cd3fde478acd92be288bac419d0d09af61a09911"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LHHCUUPjXVBfWIyj6O3wMbBJiHmJVJ8Suxa9AdIZLHMGB1GxRLhuLwZeCOpQmPWQLi5Q0s+s31mnGY4gNS3fBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-21T02:05:48.172769Z","bundle_sha256":"f5188bd3668f3d70ae14e5b1ba2be5330f2ee337a0fc43123714f77987544803"}}