{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:YUY3OFFQSRTGPHXUUWWVV4P5E3","short_pith_number":"pith:YUY3OFFQ","canonical_record":{"source":{"id":"2505.20995","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-27T10:29:05Z","cross_cats_sorted":[],"title_canon_sha256":"8ac729d3f4ab1ef6e1ad7210c4aa9dcede37d4016ab60ee2c73ee39df8b7f449","abstract_canon_sha256":"347e7172e8c7d7683a78a50cd5220c95880d501acf6243770b4ded8938ac9e30"},"schema_version":"1.0"},"canonical_sha256":"c531b714b09466679ef4a5ad5af1fd26d2a4e0213b0f6b155a9494eecfe36b27","source":{"kind":"arxiv","id":"2505.20995","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.20995","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"arxiv_version","alias_value":"2505.20995v1","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.20995","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"pith_short_12","alias_value":"YUY3OFFQSRTG","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"pith_short_16","alias_value":"YUY3OFFQSRTGPHXU","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"pith_short_8","alias_value":"YUY3OFFQ","created_at":"2026-07-05T11:10:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:YUY3OFFQSRTGPHXUUWWVV4P5E3","target":"record","payload":{"canonical_record":{"source":{"id":"2505.20995","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-27T10:29:05Z","cross_cats_sorted":[],"title_canon_sha256":"8ac729d3f4ab1ef6e1ad7210c4aa9dcede37d4016ab60ee2c73ee39df8b7f449","abstract_canon_sha256":"347e7172e8c7d7683a78a50cd5220c95880d501acf6243770b4ded8938ac9e30"},"schema_version":"1.0"},"canonical_sha256":"c531b714b09466679ef4a5ad5af1fd26d2a4e0213b0f6b155a9494eecfe36b27","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:10:22.171855Z","signature_b64":"3SUqzXmXS0XZsNRQWzlmx5M9I26/uUH0XGIReNgKZ3RtAtI0alKcU4ixLulQWzXhMvJMev/DXcewAJYWLQ+zAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c531b714b09466679ef4a5ad5af1fd26d2a4e0213b0f6b155a9494eecfe36b27","last_reissued_at":"2026-07-05T11:10:22.171291Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:10:22.171291Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.20995","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":"2026-07-05T11:10:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pPo9TuSdEUfRjz4J6I2fpgqIntHO34S+McTa9uMTlkSHsbSFygDG9HCIe/cL4tqkG//1kMOdVqM0G7QDx5Q5Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T23:02:13.868618Z"},"content_sha256":"b418c9daf8576fa3785e8567bac4f748188c875f2e0dec4609e893f74266fc5f","schema_version":"1.0","event_id":"sha256:b418c9daf8576fa3785e8567bac4f748188c875f2e0dec4609e893f74266fc5f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:YUY3OFFQSRTGPHXUUWWVV4P5E3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Articulatory strategy in vowel production as a basis for speaker discrimination","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Justin J. H. Lo, Patrycja Strycharczuk, Sam Kirkham","submitted_at":"2025-05-27T10:29:05Z","abstract_excerpt":"The way speakers articulate is well known to be variable across individuals while at the same time subject to anatomical and biomechanical constraints. In this study, we ask whether articulatory strategy in vowel production can be sufficiently speaker-specific to form the basis for speaker discrimination. We conducted Generalised Procrustes Analyses of tongue shape data from 40 English speakers from the North West of England, and assessed the speaker-discriminatory potential of orthogonal tongue shape features within the framework of likelihood ratios. Tongue size emerged as the individual dim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.20995","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/2505.20995/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":"2026-07-05T11:10:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eyxcZ4tsRxBy0kS+z2R/zo+ly6YxvCS5dPeWxqRbLLRjPlqVHpNYR6/5QEy9L3d2lIpFejnslWTmdAqX/G8cCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T23:02:13.869526Z"},"content_sha256":"bf60438e2dae97d4ebd33eedf7c00e602a2b6b5d8e790220d3330d5ba94cfd83","schema_version":"1.0","event_id":"sha256:bf60438e2dae97d4ebd33eedf7c00e602a2b6b5d8e790220d3330d5ba94cfd83"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YUY3OFFQSRTGPHXUUWWVV4P5E3/bundle.json","state_url":"https://pith.science/pith/YUY3OFFQSRTGPHXUUWWVV4P5E3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YUY3OFFQSRTGPHXUUWWVV4P5E3/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":"2026-08-15T23:02:13Z","links":{"resolver":"https://pith.science/pith/YUY3OFFQSRTGPHXUUWWVV4P5E3","bundle":"https://pith.science/pith/YUY3OFFQSRTGPHXUUWWVV4P5E3/bundle.json","state":"https://pith.science/pith/YUY3OFFQSRTGPHXUUWWVV4P5E3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YUY3OFFQSRTGPHXUUWWVV4P5E3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:YUY3OFFQSRTGPHXUUWWVV4P5E3","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":"347e7172e8c7d7683a78a50cd5220c95880d501acf6243770b4ded8938ac9e30","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-27T10:29:05Z","title_canon_sha256":"8ac729d3f4ab1ef6e1ad7210c4aa9dcede37d4016ab60ee2c73ee39df8b7f449"},"schema_version":"1.0","source":{"id":"2505.20995","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.20995","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"arxiv_version","alias_value":"2505.20995v1","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.20995","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"pith_short_12","alias_value":"YUY3OFFQSRTG","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"pith_short_16","alias_value":"YUY3OFFQSRTGPHXU","created_at":"2026-07-05T11:10:22Z"},{"alias_kind":"pith_short_8","alias_value":"YUY3OFFQ","created_at":"2026-07-05T11:10:22Z"}],"graph_snapshots":[{"event_id":"sha256:bf60438e2dae97d4ebd33eedf7c00e602a2b6b5d8e790220d3330d5ba94cfd83","target":"graph","created_at":"2026-07-05T11:10:22Z","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/2505.20995/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The way speakers articulate is well known to be variable across individuals while at the same time subject to anatomical and biomechanical constraints. In this study, we ask whether articulatory strategy in vowel production can be sufficiently speaker-specific to form the basis for speaker discrimination. We conducted Generalised Procrustes Analyses of tongue shape data from 40 English speakers from the North West of England, and assessed the speaker-discriminatory potential of orthogonal tongue shape features within the framework of likelihood ratios. Tongue size emerged as the individual dim","authors_text":"Justin J. H. Lo, Patrycja Strycharczuk, Sam Kirkham","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-27T10:29:05Z","title":"Articulatory strategy in vowel production as a basis for speaker discrimination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.20995","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:b418c9daf8576fa3785e8567bac4f748188c875f2e0dec4609e893f74266fc5f","target":"record","created_at":"2026-07-05T11:10:22Z","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":"347e7172e8c7d7683a78a50cd5220c95880d501acf6243770b4ded8938ac9e30","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-27T10:29:05Z","title_canon_sha256":"8ac729d3f4ab1ef6e1ad7210c4aa9dcede37d4016ab60ee2c73ee39df8b7f449"},"schema_version":"1.0","source":{"id":"2505.20995","kind":"arxiv","version":1}},"canonical_sha256":"c531b714b09466679ef4a5ad5af1fd26d2a4e0213b0f6b155a9494eecfe36b27","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c531b714b09466679ef4a5ad5af1fd26d2a4e0213b0f6b155a9494eecfe36b27","first_computed_at":"2026-07-05T11:10:22.171291Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:10:22.171291Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3SUqzXmXS0XZsNRQWzlmx5M9I26/uUH0XGIReNgKZ3RtAtI0alKcU4ixLulQWzXhMvJMev/DXcewAJYWLQ+zAw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:10:22.171855Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.20995","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b418c9daf8576fa3785e8567bac4f748188c875f2e0dec4609e893f74266fc5f","sha256:bf60438e2dae97d4ebd33eedf7c00e602a2b6b5d8e790220d3330d5ba94cfd83"],"state_sha256":"3edd09a17887b078de27528788e532ecea5330682c58cff58852c7f39be5918e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VgVz6yblQWBOrfcjkjMzn8a4fzJ+YmD0Xve36CjAUwBvoLBgGashLi0GjZ7ulyR15dPuYvlMV6AnlHU6fCnMDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T23:02:13.875635Z","bundle_sha256":"69118e8f068c4f000ff37a29cae0196f098e699cbcaafdf4763bbb21a78cb082"}}