{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:6FQ346AQUOQ7VIMRKTDPXQWMX5","short_pith_number":"pith:6FQ346AQ","canonical_record":{"source":{"id":"1507.07587","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-07-27T21:10:42Z","cross_cats_sorted":[],"title_canon_sha256":"8a9920aa32cf459891d1173ca9aec2019788ac4ec9b6b907f762af63d38a295d","abstract_canon_sha256":"ad8841b732fc46dbd34e847ef96ae7dc8248a8dba025f051bd8070f1282260dd"},"schema_version":"1.0"},"canonical_sha256":"f161be7810a3a1faa19154c6fbc2ccbf7aa73d777af2f913b3ae98fe6358d5db","source":{"kind":"arxiv","id":"1507.07587","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07587","created_at":"2026-05-18T00:44:18Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07587v2","created_at":"2026-05-18T00:44:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07587","created_at":"2026-05-18T00:44:18Z"},{"alias_kind":"pith_short_12","alias_value":"6FQ346AQUOQ7","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6FQ346AQUOQ7VIMR","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6FQ346AQ","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:6FQ346AQUOQ7VIMRKTDPXQWMX5","target":"record","payload":{"canonical_record":{"source":{"id":"1507.07587","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-07-27T21:10:42Z","cross_cats_sorted":[],"title_canon_sha256":"8a9920aa32cf459891d1173ca9aec2019788ac4ec9b6b907f762af63d38a295d","abstract_canon_sha256":"ad8841b732fc46dbd34e847ef96ae7dc8248a8dba025f051bd8070f1282260dd"},"schema_version":"1.0"},"canonical_sha256":"f161be7810a3a1faa19154c6fbc2ccbf7aa73d777af2f913b3ae98fe6358d5db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:44:18.111055Z","signature_b64":"8oM4NyAd+gxXf0IF8A5Bg8JQcaF8EE/5D7jbQBtRBU9oB0FC6xZXqehIQXy1/xK/6BLzaF2Dvb21HCoNmnEvDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f161be7810a3a1faa19154c6fbc2ccbf7aa73d777af2f913b3ae98fe6358d5db","last_reissued_at":"2026-05-18T00:44:18.110645Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:44:18.110645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.07587","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:44:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TSPk8eFaG/nb/pU/SN0u3UQ6ugbC1WiGNRstN95ag8xGY4/rKGvXhNd5rz+hoSMgfsdBo+wmlHQPql7LpLUaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:39:30.281873Z"},"content_sha256":"98b7e6314e232f5436587ecd3d9688776a3f79de78cb3660c737c3f0062dbf1a","schema_version":"1.0","event_id":"sha256:98b7e6314e232f5436587ecd3d9688776a3f79de78cb3660c737c3f0062dbf1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:6FQ346AQUOQ7VIMRKTDPXQWMX5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The statistical analysis of acoustic phonetic data: exploring differences between spoken Romance languages","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.AP","authors_text":"Davide Pigoli, John A.D. Aston, John S. Coleman, Pantelis Z. Hadjipantelis","submitted_at":"2015-07-27T21:10:42Z","abstract_excerpt":"The historical and geographical spread from older to more modern languages has long been studied by examining textual changes and in terms of changes in phonetic transcriptions. However, it is more difficult to analyze language change from an acoustic point of view, although this is usually the dominant mode of transmission. We propose a novel analysis approach for acoustic phonetic data, where the aim will be to statistically model the acoustic properties of spoken words. We explore phonetic variation and change using a time-frequency representation, namely the log-spectrograms of speech reco"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07587","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T00:44:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m9Nb8Dwovunoyi92WZigww/jFRCB6E3WVagxfMZK4L7UvfgOm4cgRjnOWL2vPC3Wyd0kSgRS5Ya8xiVSgAcMDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:39:30.282575Z"},"content_sha256":"f9306c5efd39f5b3a976ef06e4cd5f27bdb749b6a25b5d5b5cbe2d922afd5bd3","schema_version":"1.0","event_id":"sha256:f9306c5efd39f5b3a976ef06e4cd5f27bdb749b6a25b5d5b5cbe2d922afd5bd3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6FQ346AQUOQ7VIMRKTDPXQWMX5/bundle.json","state_url":"https://pith.science/pith/6FQ346AQUOQ7VIMRKTDPXQWMX5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6FQ346AQUOQ7VIMRKTDPXQWMX5/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":"2026-05-31T12:39:30Z","links":{"resolver":"https://pith.science/pith/6FQ346AQUOQ7VIMRKTDPXQWMX5","bundle":"https://pith.science/pith/6FQ346AQUOQ7VIMRKTDPXQWMX5/bundle.json","state":"https://pith.science/pith/6FQ346AQUOQ7VIMRKTDPXQWMX5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6FQ346AQUOQ7VIMRKTDPXQWMX5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6FQ346AQUOQ7VIMRKTDPXQWMX5","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":"ad8841b732fc46dbd34e847ef96ae7dc8248a8dba025f051bd8070f1282260dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-07-27T21:10:42Z","title_canon_sha256":"8a9920aa32cf459891d1173ca9aec2019788ac4ec9b6b907f762af63d38a295d"},"schema_version":"1.0","source":{"id":"1507.07587","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07587","created_at":"2026-05-18T00:44:18Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07587v2","created_at":"2026-05-18T00:44:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07587","created_at":"2026-05-18T00:44:18Z"},{"alias_kind":"pith_short_12","alias_value":"6FQ346AQUOQ7","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6FQ346AQUOQ7VIMR","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6FQ346AQ","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:f9306c5efd39f5b3a976ef06e4cd5f27bdb749b6a25b5d5b5cbe2d922afd5bd3","target":"graph","created_at":"2026-05-18T00:44:18Z","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"},"paper":{"abstract_excerpt":"The historical and geographical spread from older to more modern languages has long been studied by examining textual changes and in terms of changes in phonetic transcriptions. However, it is more difficult to analyze language change from an acoustic point of view, although this is usually the dominant mode of transmission. We propose a novel analysis approach for acoustic phonetic data, where the aim will be to statistically model the acoustic properties of spoken words. We explore phonetic variation and change using a time-frequency representation, namely the log-spectrograms of speech reco","authors_text":"Davide Pigoli, John A.D. Aston, John S. Coleman, Pantelis Z. Hadjipantelis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-07-27T21:10:42Z","title":"The statistical analysis of acoustic phonetic data: exploring differences between spoken Romance languages"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07587","kind":"arxiv","version":2},"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":"sha256:98b7e6314e232f5436587ecd3d9688776a3f79de78cb3660c737c3f0062dbf1a","target":"record","created_at":"2026-05-18T00:44:18Z","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":"ad8841b732fc46dbd34e847ef96ae7dc8248a8dba025f051bd8070f1282260dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-07-27T21:10:42Z","title_canon_sha256":"8a9920aa32cf459891d1173ca9aec2019788ac4ec9b6b907f762af63d38a295d"},"schema_version":"1.0","source":{"id":"1507.07587","kind":"arxiv","version":2}},"canonical_sha256":"f161be7810a3a1faa19154c6fbc2ccbf7aa73d777af2f913b3ae98fe6358d5db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f161be7810a3a1faa19154c6fbc2ccbf7aa73d777af2f913b3ae98fe6358d5db","first_computed_at":"2026-05-18T00:44:18.110645Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:18.110645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8oM4NyAd+gxXf0IF8A5Bg8JQcaF8EE/5D7jbQBtRBU9oB0FC6xZXqehIQXy1/xK/6BLzaF2Dvb21HCoNmnEvDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:18.111055Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.07587","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:98b7e6314e232f5436587ecd3d9688776a3f79de78cb3660c737c3f0062dbf1a","sha256:f9306c5efd39f5b3a976ef06e4cd5f27bdb749b6a25b5d5b5cbe2d922afd5bd3"],"state_sha256":"7a02e921ce78e8b626038a5529c3d918234fe5017569a19d1857682e2ad5a784"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KkQiR4rmzlWVY4m2cuF+AbY4Ee0vmvcIgqXVLhJLpGXASLH5IZA4AP+XdhrTTaqpkYn4CYW0FnZxaywTNcVBBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T12:39:30.286690Z","bundle_sha256":"ecf951e246c1ece17fe83c5dcdf921ca72a282b49fd9fbfcbe6db22284e2fcbc"}}