{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:DUKA3FJJQFW4CCNCCA33DGPWXQ","short_pith_number":"pith:DUKA3FJJ","canonical_record":{"source":{"id":"2109.13217","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-27T17:38:26Z","cross_cats_sorted":["cs.SD","eess.AS"],"title_canon_sha256":"9b6c28356495a33c958d50a1b0cf0de212a08162d384c3c09dda34cdde8612d7","abstract_canon_sha256":"33b4ed35ce18a24bbcd785fe4132b0282c873aa9a7b650418680b58918331f5d"},"schema_version":"1.0"},"canonical_sha256":"1d140d9529816dc109a21037b199f6bc12877161180a68e6934c122b4c0801a7","source":{"kind":"arxiv","id":"2109.13217","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.13217","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"arxiv_version","alias_value":"2109.13217v1","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.13217","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"pith_short_12","alias_value":"DUKA3FJJQFW4","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"pith_short_16","alias_value":"DUKA3FJJQFW4CCNC","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"pith_short_8","alias_value":"DUKA3FJJ","created_at":"2026-07-05T03:17:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:DUKA3FJJQFW4CCNCCA33DGPWXQ","target":"record","payload":{"canonical_record":{"source":{"id":"2109.13217","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-27T17:38:26Z","cross_cats_sorted":["cs.SD","eess.AS"],"title_canon_sha256":"9b6c28356495a33c958d50a1b0cf0de212a08162d384c3c09dda34cdde8612d7","abstract_canon_sha256":"33b4ed35ce18a24bbcd785fe4132b0282c873aa9a7b650418680b58918331f5d"},"schema_version":"1.0"},"canonical_sha256":"1d140d9529816dc109a21037b199f6bc12877161180a68e6934c122b4c0801a7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:17:42.724581Z","signature_b64":"GgZmI0YH/ug1G3b2rGt1HJEDrMOLnu0xxQVJYrIDtpYa7XJLEDZE+h3tGHnumqn8PgFvMONMUE0Oh2tay6LJCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1d140d9529816dc109a21037b199f6bc12877161180a68e6934c122b4c0801a7","last_reissued_at":"2026-07-05T03:17:42.724039Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:17:42.724039Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.13217","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":"2026-07-05T03:17:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MfocYRnBb2vnJ1Zk+8Wdc7YwpK7fQYQrKF5wEtOx56xrlVDSGwXXCMKvPtjKjkw3Z/Z1blc7WBLxniFsr3tCAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:28:35.398548Z"},"content_sha256":"d07a410b8334989006bac00d867dcc9d0089eeb5135b4db3425e82153461f6b8","schema_version":"1.0","event_id":"sha256:d07a410b8334989006bac00d867dcc9d0089eeb5135b4db3425e82153461f6b8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:DUKA3FJJQFW4CCNCCA33DGPWXQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Challenges and Opportunities of Speech Recognition for Bengali Language","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SD","eess.AS"],"primary_cat":"cs.CL","authors_text":"Abu Quwsar Ohi, Md. Abdul Hamid, M. F. Mridha, Muhammad Mostafa Monowar","submitted_at":"2021-09-27T17:38:26Z","abstract_excerpt":"Speech recognition is a fascinating process that offers the opportunity to interact and command the machine in the field of human-computer interactions. Speech recognition is a language-dependent system constructed directly based on the linguistic and textual properties of any language. Automatic Speech Recognition (ASR) systems are currently being used to translate speech to text flawlessly. Although ASR systems are being strongly executed in international languages, ASR systems' implementation in the Bengali language has not reached an acceptable state. In this research work, we sedulously d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.13217","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/2109.13217/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":"2026-07-05T03:17:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2O4n0NMy4aWYjdrr4w8u6sqyPYtvUBRXeiB1bg7G7QnDTfMtwrNlVZ4Ek2XsP6FxnlqXMtv0zfvlXuWu/oDaDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:28:35.399053Z"},"content_sha256":"57b07d24422862e73d196001412e3f364d395d2bbf827d9fd308526458fbd184","schema_version":"1.0","event_id":"sha256:57b07d24422862e73d196001412e3f364d395d2bbf827d9fd308526458fbd184"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DUKA3FJJQFW4CCNCCA33DGPWXQ/bundle.json","state_url":"https://pith.science/pith/DUKA3FJJQFW4CCNCCA33DGPWXQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DUKA3FJJQFW4CCNCCA33DGPWXQ/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":"2026-08-07T08:28:35Z","links":{"resolver":"https://pith.science/pith/DUKA3FJJQFW4CCNCCA33DGPWXQ","bundle":"https://pith.science/pith/DUKA3FJJQFW4CCNCCA33DGPWXQ/bundle.json","state":"https://pith.science/pith/DUKA3FJJQFW4CCNCCA33DGPWXQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DUKA3FJJQFW4CCNCCA33DGPWXQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:DUKA3FJJQFW4CCNCCA33DGPWXQ","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":"33b4ed35ce18a24bbcd785fe4132b0282c873aa9a7b650418680b58918331f5d","cross_cats_sorted":["cs.SD","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-27T17:38:26Z","title_canon_sha256":"9b6c28356495a33c958d50a1b0cf0de212a08162d384c3c09dda34cdde8612d7"},"schema_version":"1.0","source":{"id":"2109.13217","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.13217","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"arxiv_version","alias_value":"2109.13217v1","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.13217","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"pith_short_12","alias_value":"DUKA3FJJQFW4","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"pith_short_16","alias_value":"DUKA3FJJQFW4CCNC","created_at":"2026-07-05T03:17:42Z"},{"alias_kind":"pith_short_8","alias_value":"DUKA3FJJ","created_at":"2026-07-05T03:17:42Z"}],"graph_snapshots":[{"event_id":"sha256:57b07d24422862e73d196001412e3f364d395d2bbf827d9fd308526458fbd184","target":"graph","created_at":"2026-07-05T03:17:42Z","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/2109.13217/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Speech recognition is a fascinating process that offers the opportunity to interact and command the machine in the field of human-computer interactions. Speech recognition is a language-dependent system constructed directly based on the linguistic and textual properties of any language. Automatic Speech Recognition (ASR) systems are currently being used to translate speech to text flawlessly. Although ASR systems are being strongly executed in international languages, ASR systems' implementation in the Bengali language has not reached an acceptable state. In this research work, we sedulously d","authors_text":"Abu Quwsar Ohi, Md. Abdul Hamid, M. F. Mridha, Muhammad Mostafa Monowar","cross_cats":["cs.SD","eess.AS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-27T17:38:26Z","title":"Challenges and Opportunities of Speech Recognition for Bengali Language"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.13217","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:d07a410b8334989006bac00d867dcc9d0089eeb5135b4db3425e82153461f6b8","target":"record","created_at":"2026-07-05T03:17:42Z","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":"33b4ed35ce18a24bbcd785fe4132b0282c873aa9a7b650418680b58918331f5d","cross_cats_sorted":["cs.SD","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-27T17:38:26Z","title_canon_sha256":"9b6c28356495a33c958d50a1b0cf0de212a08162d384c3c09dda34cdde8612d7"},"schema_version":"1.0","source":{"id":"2109.13217","kind":"arxiv","version":1}},"canonical_sha256":"1d140d9529816dc109a21037b199f6bc12877161180a68e6934c122b4c0801a7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1d140d9529816dc109a21037b199f6bc12877161180a68e6934c122b4c0801a7","first_computed_at":"2026-07-05T03:17:42.724039Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:17:42.724039Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GgZmI0YH/ug1G3b2rGt1HJEDrMOLnu0xxQVJYrIDtpYa7XJLEDZE+h3tGHnumqn8PgFvMONMUE0Oh2tay6LJCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:17:42.724581Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.13217","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d07a410b8334989006bac00d867dcc9d0089eeb5135b4db3425e82153461f6b8","sha256:57b07d24422862e73d196001412e3f364d395d2bbf827d9fd308526458fbd184"],"state_sha256":"5135eb2a7cc617c453dc349892908e94d357c8d940450836f3bcd23512062833"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bsYTRaJGeEe0bE0GB5M6Tdh+t6Pofx8Sn+OneDBquxqIlrVz1LchSfCFVYXKwbKkIxFjP8ZLR20YFEeVUCh2AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T08:28:35.402730Z","bundle_sha256":"040490b8234b3ae583d8cd8b0702b7a17dbd9bf756dbba6480148941f8649bd2"}}