{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:XKHADS4AB3WW6NCYSYJEZB7PNU","short_pith_number":"pith:XKHADS4A","canonical_record":{"source":{"id":"2606.27380","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-11T23:32:45Z","cross_cats_sorted":[],"title_canon_sha256":"816212af37b5c2c17f24102251dd138244abf4879c70450fb4307facdc806b79","abstract_canon_sha256":"7e89c5d6be3d50f49eac60c312099f42e9a0e4847cb3a59a7f1c91bd30db09b1"},"schema_version":"1.0"},"canonical_sha256":"ba8e01cb800eed6f345896124c87ef6d12a10c277d4e5d82475840f287350f07","source":{"kind":"arxiv","id":"2606.27380","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.27380","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"arxiv_version","alias_value":"2606.27380v1","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.27380","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"pith_short_12","alias_value":"XKHADS4AB3WW","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"pith_short_16","alias_value":"XKHADS4AB3WW6NCY","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"pith_short_8","alias_value":"XKHADS4A","created_at":"2026-06-29T00:14:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:XKHADS4AB3WW6NCYSYJEZB7PNU","target":"record","payload":{"canonical_record":{"source":{"id":"2606.27380","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-11T23:32:45Z","cross_cats_sorted":[],"title_canon_sha256":"816212af37b5c2c17f24102251dd138244abf4879c70450fb4307facdc806b79","abstract_canon_sha256":"7e89c5d6be3d50f49eac60c312099f42e9a0e4847cb3a59a7f1c91bd30db09b1"},"schema_version":"1.0"},"canonical_sha256":"ba8e01cb800eed6f345896124c87ef6d12a10c277d4e5d82475840f287350f07","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-29T00:14:04.296643Z","signature_b64":"5weq9Ksl+dIVT+LAqPg+V5cT6PPrZ/h7G6X7CQMqxxteJO8Mqxjz7klSgyp/1ITn2FHqDPv4DaSWENfPnyy7Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba8e01cb800eed6f345896124c87ef6d12a10c277d4e5d82475840f287350f07","last_reissued_at":"2026-06-29T00:14:04.296167Z","signature_status":"signed_v1","first_computed_at":"2026-06-29T00:14:04.296167Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.27380","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":"2026-06-29T00:14:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"smeXo1NHo2Gg4vbDpPD2VStz42tpYu62yH5bjXmn3hw1Aa6max7AI14AZT+mSs/3MRW1q6kAjURBIyJBZMgQCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T10:49:18.507647Z"},"content_sha256":"674a39e99b5d101a178a8517ac539a5ded8d475e11a14d9adfd196c999ce0cad","schema_version":"1.0","event_id":"sha256:674a39e99b5d101a178a8517ac539a5ded8d475e11a14d9adfd196c999ce0cad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:XKHADS4AB3WW6NCYSYJEZB7PNU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Survey of Automated Presentation Coaching: Systems, Methods, and Open Challenges","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Julia Hirschberg, Li Siyan, Wen Liang, Zackary Rackauckas","submitted_at":"2026-05-11T23:32:45Z","abstract_excerpt":"Automated coaching for oral presentations sits at the intersection of computer-assisted pronunciation training (CAPT), prosody modeling, and speech synthesis, yet no prior work has systematically surveyed and compared existing systems along these dimensions. This survey reviews and categorizes automated presentation coaching systems, spanning pronunciation tutors, fluency and prosody coaches, multimodal trainers, and conference Q&A practice tools. We introduce a five-dimensional task taxonomy - covering segmental pronunciation, lexical stress, suprasegmental prosody, pacing, and content faithf"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.27380","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/2606.27380/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":"2026-06-29T00:14:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qokk/J/CF6lYacMo13AnPwWAOU1krpZyT5p+yYDODYVCAhcK2HHDtC5QZGQtls8Yf29qPJZh2bIB32JFxdDyBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T10:49:18.508019Z"},"content_sha256":"39e88ef12ad67b24e9feee3cd504d6e445dbad52c46f92940c9401cc835ae1f9","schema_version":"1.0","event_id":"sha256:39e88ef12ad67b24e9feee3cd504d6e445dbad52c46f92940c9401cc835ae1f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XKHADS4AB3WW6NCYSYJEZB7PNU/bundle.json","state_url":"https://pith.science/pith/XKHADS4AB3WW6NCYSYJEZB7PNU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XKHADS4AB3WW6NCYSYJEZB7PNU/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":"2026-06-30T10:49:18Z","links":{"resolver":"https://pith.science/pith/XKHADS4AB3WW6NCYSYJEZB7PNU","bundle":"https://pith.science/pith/XKHADS4AB3WW6NCYSYJEZB7PNU/bundle.json","state":"https://pith.science/pith/XKHADS4AB3WW6NCYSYJEZB7PNU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XKHADS4AB3WW6NCYSYJEZB7PNU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:XKHADS4AB3WW6NCYSYJEZB7PNU","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":"7e89c5d6be3d50f49eac60c312099f42e9a0e4847cb3a59a7f1c91bd30db09b1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-11T23:32:45Z","title_canon_sha256":"816212af37b5c2c17f24102251dd138244abf4879c70450fb4307facdc806b79"},"schema_version":"1.0","source":{"id":"2606.27380","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.27380","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"arxiv_version","alias_value":"2606.27380v1","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.27380","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"pith_short_12","alias_value":"XKHADS4AB3WW","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"pith_short_16","alias_value":"XKHADS4AB3WW6NCY","created_at":"2026-06-29T00:14:04Z"},{"alias_kind":"pith_short_8","alias_value":"XKHADS4A","created_at":"2026-06-29T00:14:04Z"}],"graph_snapshots":[{"event_id":"sha256:39e88ef12ad67b24e9feee3cd504d6e445dbad52c46f92940c9401cc835ae1f9","target":"graph","created_at":"2026-06-29T00:14:04Z","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/2606.27380/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Automated coaching for oral presentations sits at the intersection of computer-assisted pronunciation training (CAPT), prosody modeling, and speech synthesis, yet no prior work has systematically surveyed and compared existing systems along these dimensions. This survey reviews and categorizes automated presentation coaching systems, spanning pronunciation tutors, fluency and prosody coaches, multimodal trainers, and conference Q&A practice tools. We introduce a five-dimensional task taxonomy - covering segmental pronunciation, lexical stress, suprasegmental prosody, pacing, and content faithf","authors_text":"Julia Hirschberg, Li Siyan, Wen Liang, Zackary Rackauckas","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-11T23:32:45Z","title":"A Survey of Automated Presentation Coaching: Systems, Methods, and Open Challenges"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.27380","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":"sha256:674a39e99b5d101a178a8517ac539a5ded8d475e11a14d9adfd196c999ce0cad","target":"record","created_at":"2026-06-29T00:14:04Z","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":"7e89c5d6be3d50f49eac60c312099f42e9a0e4847cb3a59a7f1c91bd30db09b1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-05-11T23:32:45Z","title_canon_sha256":"816212af37b5c2c17f24102251dd138244abf4879c70450fb4307facdc806b79"},"schema_version":"1.0","source":{"id":"2606.27380","kind":"arxiv","version":1}},"canonical_sha256":"ba8e01cb800eed6f345896124c87ef6d12a10c277d4e5d82475840f287350f07","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba8e01cb800eed6f345896124c87ef6d12a10c277d4e5d82475840f287350f07","first_computed_at":"2026-06-29T00:14:04.296167Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-29T00:14:04.296167Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5weq9Ksl+dIVT+LAqPg+V5cT6PPrZ/h7G6X7CQMqxxteJO8Mqxjz7klSgyp/1ITn2FHqDPv4DaSWENfPnyy7Aw==","signature_status":"signed_v1","signed_at":"2026-06-29T00:14:04.296643Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.27380","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:674a39e99b5d101a178a8517ac539a5ded8d475e11a14d9adfd196c999ce0cad","sha256:39e88ef12ad67b24e9feee3cd504d6e445dbad52c46f92940c9401cc835ae1f9"],"state_sha256":"f3638fa7edf940b1ccc21fa0939fb6c1391827fcafe5372ead882a4048bb7205"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hjOswShMxZM98UUUOwbwvnam+pKsvR1Y7dXNCDeaE9GFJwhi14Y3xFVmhDMCPxYEptZ/rX5ul6ODm2XPZlyPAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T10:49:18.509983Z","bundle_sha256":"c7cc50715907496d103ca67d2a5341bfe8d60298732369c9257f76f04352fb2d"}}