{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:UWGGQYGQW4W4ZRXU7R3IEDWBD5","short_pith_number":"pith:UWGGQYGQ","canonical_record":{"source":{"id":"2103.15118","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2021-03-28T12:46:31Z","cross_cats_sorted":[],"title_canon_sha256":"f443f40fffefce74843ed7529932db3645ac7f9cd56765562a6865acf6970f4e","abstract_canon_sha256":"2f239291518c1c756bc9d381c9121ee89c2b52e5ed5a41bac89be9f95c9977ed"},"schema_version":"1.0"},"canonical_sha256":"a58c6860d0b72dccc6f4fc76820ec11f4cad2a3ba7c6e95ab02106000852ef7d","source":{"kind":"arxiv","id":"2103.15118","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.15118","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"arxiv_version","alias_value":"2103.15118v3","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.15118","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"pith_short_12","alias_value":"UWGGQYGQW4W4","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"UWGGQYGQW4W4ZRXU","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"UWGGQYGQ","created_at":"2026-07-05T02:29:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:UWGGQYGQW4W4ZRXU7R3IEDWBD5","target":"record","payload":{"canonical_record":{"source":{"id":"2103.15118","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2021-03-28T12:46:31Z","cross_cats_sorted":[],"title_canon_sha256":"f443f40fffefce74843ed7529932db3645ac7f9cd56765562a6865acf6970f4e","abstract_canon_sha256":"2f239291518c1c756bc9d381c9121ee89c2b52e5ed5a41bac89be9f95c9977ed"},"schema_version":"1.0"},"canonical_sha256":"a58c6860d0b72dccc6f4fc76820ec11f4cad2a3ba7c6e95ab02106000852ef7d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:29:58.070981Z","signature_b64":"juItcdP0upo7XlnuHQUQBgBcVwFVuS9S14G+zt3X7tRQzpIX5lfE7FVQcZJ9uqVB2mlzTBcViNMIZj/m7U7nBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a58c6860d0b72dccc6f4fc76820ec11f4cad2a3ba7c6e95ab02106000852ef7d","last_reissued_at":"2026-07-05T02:29:58.070607Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:29:58.070607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.15118","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:29:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DxC/ud9CsMyTvXnNG4W5DXCzNdX0Amklko6jIpSDChNnuNWwL7+LO0YSb3Y08duA5trZsGhzGByszjQ6m70cAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T08:04:29.190419Z"},"content_sha256":"2e3e4d0d8f1c6c9634c119504aa0dac1d3e31b690ac03076c21a701919eee895","schema_version":"1.0","event_id":"sha256:2e3e4d0d8f1c6c9634c119504aa0dac1d3e31b690ac03076c21a701919eee895"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:UWGGQYGQW4W4ZRXU7R3IEDWBD5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Libri-adhoc40: A dataset collected from synchronized ad-hoc microphone arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.AS","authors_text":"Jianyu Wang, Junqi Chen, Menglong Xu, Shanzheng Guan, Shengqiang Li, Shupei Liu, Wenbo Zhu, Xiao-Lei Zhang, Xu Tan, Yijiang Chen, Ziye Yang","submitted_at":"2021-03-28T12:46:31Z","abstract_excerpt":"Recently, there is a research trend on ad-hoc microphone arrays. However, most research was conducted on simulated data. Although some data sets were collected with a small number of distributed devices, they were not synchronized which hinders the fundamental theoretical research to ad-hoc microphone arrays. To address this issue, this paper presents a synchronized speech corpus, named Libri-adhoc40, which collects the replayed Librispeech data from loudspeakers by ad-hoc microphone arrays of 40 strongly synchronized distributed nodes in a real office environment. Besides, to provide the eval"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.15118","kind":"arxiv","version":3},"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/2103.15118/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":"2026-07-05T02:29:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ppeg4QinT+GRFzbAqzo/HeFvHtIcWBBhXw+y68/OZjMv2Nxbn3J0qYqbNQyccAHLVxgGPDxxnFgseKaK7RF5Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T08:04:29.191045Z"},"content_sha256":"de0599e8a672230411683fe5493cb817dd506b6611d707916da5e5160ca5a656","schema_version":"1.0","event_id":"sha256:de0599e8a672230411683fe5493cb817dd506b6611d707916da5e5160ca5a656"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UWGGQYGQW4W4ZRXU7R3IEDWBD5/bundle.json","state_url":"https://pith.science/pith/UWGGQYGQW4W4ZRXU7R3IEDWBD5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UWGGQYGQW4W4ZRXU7R3IEDWBD5/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":"2026-08-19T08:04:29Z","links":{"resolver":"https://pith.science/pith/UWGGQYGQW4W4ZRXU7R3IEDWBD5","bundle":"https://pith.science/pith/UWGGQYGQW4W4ZRXU7R3IEDWBD5/bundle.json","state":"https://pith.science/pith/UWGGQYGQW4W4ZRXU7R3IEDWBD5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UWGGQYGQW4W4ZRXU7R3IEDWBD5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:UWGGQYGQW4W4ZRXU7R3IEDWBD5","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":"2f239291518c1c756bc9d381c9121ee89c2b52e5ed5a41bac89be9f95c9977ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2021-03-28T12:46:31Z","title_canon_sha256":"f443f40fffefce74843ed7529932db3645ac7f9cd56765562a6865acf6970f4e"},"schema_version":"1.0","source":{"id":"2103.15118","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.15118","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"arxiv_version","alias_value":"2103.15118v3","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.15118","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"pith_short_12","alias_value":"UWGGQYGQW4W4","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"UWGGQYGQW4W4ZRXU","created_at":"2026-07-05T02:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"UWGGQYGQ","created_at":"2026-07-05T02:29:58Z"}],"graph_snapshots":[{"event_id":"sha256:de0599e8a672230411683fe5493cb817dd506b6611d707916da5e5160ca5a656","target":"graph","created_at":"2026-07-05T02:29:58Z","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/2103.15118/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recently, there is a research trend on ad-hoc microphone arrays. However, most research was conducted on simulated data. Although some data sets were collected with a small number of distributed devices, they were not synchronized which hinders the fundamental theoretical research to ad-hoc microphone arrays. To address this issue, this paper presents a synchronized speech corpus, named Libri-adhoc40, which collects the replayed Librispeech data from loudspeakers by ad-hoc microphone arrays of 40 strongly synchronized distributed nodes in a real office environment. Besides, to provide the eval","authors_text":"Jianyu Wang, Junqi Chen, Menglong Xu, Shanzheng Guan, Shengqiang Li, Shupei Liu, Wenbo Zhu, Xiao-Lei Zhang, Xu Tan, Yijiang Chen, Ziye Yang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2021-03-28T12:46:31Z","title":"Libri-adhoc40: A dataset collected from synchronized ad-hoc microphone arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.15118","kind":"arxiv","version":3},"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":"sha256:2e3e4d0d8f1c6c9634c119504aa0dac1d3e31b690ac03076c21a701919eee895","target":"record","created_at":"2026-07-05T02:29:58Z","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":"2f239291518c1c756bc9d381c9121ee89c2b52e5ed5a41bac89be9f95c9977ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2021-03-28T12:46:31Z","title_canon_sha256":"f443f40fffefce74843ed7529932db3645ac7f9cd56765562a6865acf6970f4e"},"schema_version":"1.0","source":{"id":"2103.15118","kind":"arxiv","version":3}},"canonical_sha256":"a58c6860d0b72dccc6f4fc76820ec11f4cad2a3ba7c6e95ab02106000852ef7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a58c6860d0b72dccc6f4fc76820ec11f4cad2a3ba7c6e95ab02106000852ef7d","first_computed_at":"2026-07-05T02:29:58.070607Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:29:58.070607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"juItcdP0upo7XlnuHQUQBgBcVwFVuS9S14G+zt3X7tRQzpIX5lfE7FVQcZJ9uqVB2mlzTBcViNMIZj/m7U7nBw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:29:58.070981Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.15118","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2e3e4d0d8f1c6c9634c119504aa0dac1d3e31b690ac03076c21a701919eee895","sha256:de0599e8a672230411683fe5493cb817dd506b6611d707916da5e5160ca5a656"],"state_sha256":"7987ec819dfb11b97fdd52ad3ad4afcf930f7daadfc9ce2969b45c45fdce970e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gCD3TbzZEOj+EUfj2kAipYlXR+geHrC4ZDrjx3TH/aC5b7Z2N7vZkmytyyZ1Ko1UUuTfv35MQoRiJUhpTtfBAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T08:04:29.195294Z","bundle_sha256":"4a115b5bafa3b82f756b5279b90774254b224b7a00b7c730f825aee660120763"}}