{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:P3KBP53WF62BNOXLYDZY3A7DBJ","short_pith_number":"pith:P3KBP53W","canonical_record":{"source":{"id":"2607.17867","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2026-07-20T12:10:11Z","cross_cats_sorted":[],"title_canon_sha256":"800e34fa3d1b56719dbad54ffbc6d9e7988648054dc0b95b966fd82544fe8112","abstract_canon_sha256":"ca8b4170ea875dcd561f1f9b3dc83137d8816ec8c7585dda141b4017e1e7197f"},"schema_version":"1.0"},"canonical_sha256":"7ed417f7762fb416baebc0f38d83e30a72cf54a19d797d5e9f280b076b28628c","source":{"kind":"arxiv","id":"2607.17867","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.17867","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"arxiv_version","alias_value":"2607.17867v1","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.17867","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"pith_short_12","alias_value":"P3KBP53WF62B","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"pith_short_16","alias_value":"P3KBP53WF62BNOXL","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"pith_short_8","alias_value":"P3KBP53W","created_at":"2026-07-21T02:22:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:P3KBP53WF62BNOXLYDZY3A7DBJ","target":"record","payload":{"canonical_record":{"source":{"id":"2607.17867","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2026-07-20T12:10:11Z","cross_cats_sorted":[],"title_canon_sha256":"800e34fa3d1b56719dbad54ffbc6d9e7988648054dc0b95b966fd82544fe8112","abstract_canon_sha256":"ca8b4170ea875dcd561f1f9b3dc83137d8816ec8c7585dda141b4017e1e7197f"},"schema_version":"1.0"},"canonical_sha256":"7ed417f7762fb416baebc0f38d83e30a72cf54a19d797d5e9f280b076b28628c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-21T02:22:04.274841Z","signature_b64":"NYhrRMioQKwSHZgp8+K4ng6JOn86f2q22rS76MsJmYmRElGzCEcMNPvm9ZaaClGQPH75XNRKAGT0NJf1JyU7Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ed417f7762fb416baebc0f38d83e30a72cf54a19d797d5e9f280b076b28628c","last_reissued_at":"2026-07-21T02:22:04.274021Z","signature_status":"signed_v1","first_computed_at":"2026-07-21T02:22:04.274021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.17867","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":"2026-07-21T02:22:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3YnF+iHqmvSi6kAiLTIJj3r09B3At/y62PcKTD0b2zReq3zvlAKUkYbxNTUzjhEfTRy9Nyu8NEzGjqEf1SGHAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:28:09.545457Z"},"content_sha256":"91a6e04c2392f2c7c9e4b3359e64673f9951773b3051d7f510aaf9f2ceb498a0","schema_version":"1.0","event_id":"sha256:91a6e04c2392f2c7c9e4b3359e64673f9951773b3051d7f510aaf9f2ceb498a0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:P3KBP53WF62BNOXLYDZY3A7DBJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The tttAI System for the TSA-ASR Task of the SmartGlasses Challenge 2026","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.AS","authors_text":"Fengjie Zhu, Gaoyang Dong, Minchuan Chen, Xiaoxiao Li, Xuanji He","submitted_at":"2026-07-20T12:10:11Z","abstract_excerpt":"This paper presents the tttAI system submitted to the TSA-ASR task of the SmartGlasses Challenge 2026, evaluated on both two-person dialogues (Track 1) and multi-party meetings (Track 2). The task requires time-stamped speaker-attributed speech recognition from smart-glasses recordings. This is particularly challenging due to long-form audio, multiple speakers, and frequent overlapping speech.\n  We proposed a cascaded architecture consisting of speaker diarization, overlap detection, target-speaker extraction, post-processing, and automatic speech recognition. The diarization module extracts f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.17867","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/2607.17867/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":"2026-07-21T02:22:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GoXMzp4odiusHJ2MY7ArWvZ3TaHFztXdxMm0v9Qfknv6zUdIhoe27UL1dx/cTGEpJFdSSSm4i32AK21P0rb4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:28:09.545969Z"},"content_sha256":"07c9e88b4ef9bb46b5ae90045f0a33ae64c5ed5f5912055189afc996a5e46595","schema_version":"1.0","event_id":"sha256:07c9e88b4ef9bb46b5ae90045f0a33ae64c5ed5f5912055189afc996a5e46595"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P3KBP53WF62BNOXLYDZY3A7DBJ/bundle.json","state_url":"https://pith.science/pith/P3KBP53WF62BNOXLYDZY3A7DBJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P3KBP53WF62BNOXLYDZY3A7DBJ/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":"2026-08-03T19:28:09Z","links":{"resolver":"https://pith.science/pith/P3KBP53WF62BNOXLYDZY3A7DBJ","bundle":"https://pith.science/pith/P3KBP53WF62BNOXLYDZY3A7DBJ/bundle.json","state":"https://pith.science/pith/P3KBP53WF62BNOXLYDZY3A7DBJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P3KBP53WF62BNOXLYDZY3A7DBJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:P3KBP53WF62BNOXLYDZY3A7DBJ","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":"ca8b4170ea875dcd561f1f9b3dc83137d8816ec8c7585dda141b4017e1e7197f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2026-07-20T12:10:11Z","title_canon_sha256":"800e34fa3d1b56719dbad54ffbc6d9e7988648054dc0b95b966fd82544fe8112"},"schema_version":"1.0","source":{"id":"2607.17867","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.17867","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"arxiv_version","alias_value":"2607.17867v1","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.17867","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"pith_short_12","alias_value":"P3KBP53WF62B","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"pith_short_16","alias_value":"P3KBP53WF62BNOXL","created_at":"2026-07-21T02:22:04Z"},{"alias_kind":"pith_short_8","alias_value":"P3KBP53W","created_at":"2026-07-21T02:22:04Z"}],"graph_snapshots":[{"event_id":"sha256:07c9e88b4ef9bb46b5ae90045f0a33ae64c5ed5f5912055189afc996a5e46595","target":"graph","created_at":"2026-07-21T02:22:04Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2607.17867/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper presents the tttAI system submitted to the TSA-ASR task of the SmartGlasses Challenge 2026, evaluated on both two-person dialogues (Track 1) and multi-party meetings (Track 2). The task requires time-stamped speaker-attributed speech recognition from smart-glasses recordings. This is particularly challenging due to long-form audio, multiple speakers, and frequent overlapping speech.\n  We proposed a cascaded architecture consisting of speaker diarization, overlap detection, target-speaker extraction, post-processing, and automatic speech recognition. The diarization module extracts f","authors_text":"Fengjie Zhu, Gaoyang Dong, Minchuan Chen, Xiaoxiao Li, Xuanji He","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2026-07-20T12:10:11Z","title":"The tttAI System for the TSA-ASR Task of the SmartGlasses Challenge 2026"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.17867","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":"sha256:91a6e04c2392f2c7c9e4b3359e64673f9951773b3051d7f510aaf9f2ceb498a0","target":"record","created_at":"2026-07-21T02:22:04Z","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":"ca8b4170ea875dcd561f1f9b3dc83137d8816ec8c7585dda141b4017e1e7197f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2026-07-20T12:10:11Z","title_canon_sha256":"800e34fa3d1b56719dbad54ffbc6d9e7988648054dc0b95b966fd82544fe8112"},"schema_version":"1.0","source":{"id":"2607.17867","kind":"arxiv","version":1}},"canonical_sha256":"7ed417f7762fb416baebc0f38d83e30a72cf54a19d797d5e9f280b076b28628c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ed417f7762fb416baebc0f38d83e30a72cf54a19d797d5e9f280b076b28628c","first_computed_at":"2026-07-21T02:22:04.274021Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-21T02:22:04.274021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NYhrRMioQKwSHZgp8+K4ng6JOn86f2q22rS76MsJmYmRElGzCEcMNPvm9ZaaClGQPH75XNRKAGT0NJf1JyU7Dg==","signature_status":"signed_v1","signed_at":"2026-07-21T02:22:04.274841Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.17867","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:91a6e04c2392f2c7c9e4b3359e64673f9951773b3051d7f510aaf9f2ceb498a0","sha256:07c9e88b4ef9bb46b5ae90045f0a33ae64c5ed5f5912055189afc996a5e46595"],"state_sha256":"26167419fe054e41c110cdfeda674fa7d8bb7d4ccc805a4e60df8403155f422a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AdrUxAF+4km9HTPCW/IclRyeZEvyLSQoIj8bfqr+JSTx6XTfwVOPSsxSCuaOn60qj6wJ4RfmUejNymzD9XA6BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:28:09.549250Z","bundle_sha256":"ce52313ca171b210094d2ad7fd46452e148ed3536a29707ac52f238b54de785a"}}