{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:QAVFKNS4PI43Q7ULVOQU54MLBH","short_pith_number":"pith:QAVFKNS4","canonical_record":{"source":{"id":"2607.19688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2026-07-22T02:35:45Z","cross_cats_sorted":[],"title_canon_sha256":"8241900854a393a63650536e2e4bcabbdc7d9ccaa2c983a8f2b83f0b50cec5e3","abstract_canon_sha256":"402482496628babe0f95d6eec7a008b4767149037b9f09bd919403433f32b260"},"schema_version":"1.0"},"canonical_sha256":"802a55365c7a39b87e8baba14ef18b09f970dd23d831ed7625df98b68978e4eb","source":{"kind":"arxiv","id":"2607.19688","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.19688","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"arxiv_version","alias_value":"2607.19688v1","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.19688","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"pith_short_12","alias_value":"QAVFKNS4PI43","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"pith_short_16","alias_value":"QAVFKNS4PI43Q7UL","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"pith_short_8","alias_value":"QAVFKNS4","created_at":"2026-07-23T00:24:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:QAVFKNS4PI43Q7ULVOQU54MLBH","target":"record","payload":{"canonical_record":{"source":{"id":"2607.19688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2026-07-22T02:35:45Z","cross_cats_sorted":[],"title_canon_sha256":"8241900854a393a63650536e2e4bcabbdc7d9ccaa2c983a8f2b83f0b50cec5e3","abstract_canon_sha256":"402482496628babe0f95d6eec7a008b4767149037b9f09bd919403433f32b260"},"schema_version":"1.0"},"canonical_sha256":"802a55365c7a39b87e8baba14ef18b09f970dd23d831ed7625df98b68978e4eb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-23T00:24:03.909637Z","signature_b64":"uP+GE/r4+Wn73JzTj0FT1HHRVU2rbkkPzsTsairKHQg67+r8fs2sWKM01d+PcrMAc+LlFpE88FY5OOgFe/bNAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"802a55365c7a39b87e8baba14ef18b09f970dd23d831ed7625df98b68978e4eb","last_reissued_at":"2026-07-23T00:24:03.908745Z","signature_status":"signed_v1","first_computed_at":"2026-07-23T00:24:03.908745Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.19688","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":"2026-07-23T00:24:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CVvLyUG+GhR4McaDdwC92oJ1uy4BMy10ZorJlERe6Thgyfc0YB6X3ht7bulxYtowb5f5948azNkrv63cR7nFCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T13:16:15.765083Z"},"content_sha256":"022bcd73f24601bfe8dd086005ab2b15c034aae4017b2e03fb02649597ff8eba","schema_version":"1.0","event_id":"sha256:022bcd73f24601bfe8dd086005ab2b15c034aae4017b2e03fb02649597ff8eba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:QAVFKNS4PI43Q7ULVOQU54MLBH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Diagnostic Evaluation Framework for AI-Generated Cover Songs Using Music-Theoretic and Acoustic Features","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SD","authors_text":"Yingxin Liang","submitted_at":"2026-07-22T02:35:45Z","abstract_excerpt":"AI-generated covers often fail through local musical errors that a global quality score cannot locate: the vocal contour may remain recognizable while the accompaniment uses the wrong harmonic function, or the output may stay in key while the arrangement remains incomplete. We present a five-dimensional diagnostic framework covering melodic pitch, harmonic progression, key consistency, style consistency, and arrangement/production quality. The benchmark contains 30 covers generated from 5 source songs by 6 systems, with expert severity ratings and 9 symbolic or acoustic features. Harmonic prog"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.19688","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/2607.19688/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":"2026-07-23T00:24:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dpKq/ftQZUk6obZXau436qi/+5SJBr0QdFUkpV9fF6jJQ3tnN5mWACHlgmBurO9dVck/eBC8HXw+G0AjFVPjAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T13:16:15.765478Z"},"content_sha256":"6748cc5d44a5ed04a2f5a03fceefdacea743376001483f8aec1db6e9c02a9a86","schema_version":"1.0","event_id":"sha256:6748cc5d44a5ed04a2f5a03fceefdacea743376001483f8aec1db6e9c02a9a86"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QAVFKNS4PI43Q7ULVOQU54MLBH/bundle.json","state_url":"https://pith.science/pith/QAVFKNS4PI43Q7ULVOQU54MLBH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QAVFKNS4PI43Q7ULVOQU54MLBH/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":"2026-08-04T13:16:15Z","links":{"resolver":"https://pith.science/pith/QAVFKNS4PI43Q7ULVOQU54MLBH","bundle":"https://pith.science/pith/QAVFKNS4PI43Q7ULVOQU54MLBH/bundle.json","state":"https://pith.science/pith/QAVFKNS4PI43Q7ULVOQU54MLBH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QAVFKNS4PI43Q7ULVOQU54MLBH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:QAVFKNS4PI43Q7ULVOQU54MLBH","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":"402482496628babe0f95d6eec7a008b4767149037b9f09bd919403433f32b260","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2026-07-22T02:35:45Z","title_canon_sha256":"8241900854a393a63650536e2e4bcabbdc7d9ccaa2c983a8f2b83f0b50cec5e3"},"schema_version":"1.0","source":{"id":"2607.19688","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.19688","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"arxiv_version","alias_value":"2607.19688v1","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.19688","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"pith_short_12","alias_value":"QAVFKNS4PI43","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"pith_short_16","alias_value":"QAVFKNS4PI43Q7UL","created_at":"2026-07-23T00:24:03Z"},{"alias_kind":"pith_short_8","alias_value":"QAVFKNS4","created_at":"2026-07-23T00:24:03Z"}],"graph_snapshots":[{"event_id":"sha256:6748cc5d44a5ed04a2f5a03fceefdacea743376001483f8aec1db6e9c02a9a86","target":"graph","created_at":"2026-07-23T00:24:03Z","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/2607.19688/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"AI-generated covers often fail through local musical errors that a global quality score cannot locate: the vocal contour may remain recognizable while the accompaniment uses the wrong harmonic function, or the output may stay in key while the arrangement remains incomplete. We present a five-dimensional diagnostic framework covering melodic pitch, harmonic progression, key consistency, style consistency, and arrangement/production quality. The benchmark contains 30 covers generated from 5 source songs by 6 systems, with expert severity ratings and 9 symbolic or acoustic features. Harmonic prog","authors_text":"Yingxin Liang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2026-07-22T02:35:45Z","title":"A Diagnostic Evaluation Framework for AI-Generated Cover Songs Using Music-Theoretic and Acoustic Features"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.19688","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":"sha256:022bcd73f24601bfe8dd086005ab2b15c034aae4017b2e03fb02649597ff8eba","target":"record","created_at":"2026-07-23T00:24:03Z","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":"402482496628babe0f95d6eec7a008b4767149037b9f09bd919403433f32b260","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2026-07-22T02:35:45Z","title_canon_sha256":"8241900854a393a63650536e2e4bcabbdc7d9ccaa2c983a8f2b83f0b50cec5e3"},"schema_version":"1.0","source":{"id":"2607.19688","kind":"arxiv","version":1}},"canonical_sha256":"802a55365c7a39b87e8baba14ef18b09f970dd23d831ed7625df98b68978e4eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"802a55365c7a39b87e8baba14ef18b09f970dd23d831ed7625df98b68978e4eb","first_computed_at":"2026-07-23T00:24:03.908745Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-23T00:24:03.908745Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uP+GE/r4+Wn73JzTj0FT1HHRVU2rbkkPzsTsairKHQg67+r8fs2sWKM01d+PcrMAc+LlFpE88FY5OOgFe/bNAA==","signature_status":"signed_v1","signed_at":"2026-07-23T00:24:03.909637Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.19688","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:022bcd73f24601bfe8dd086005ab2b15c034aae4017b2e03fb02649597ff8eba","sha256:6748cc5d44a5ed04a2f5a03fceefdacea743376001483f8aec1db6e9c02a9a86"],"state_sha256":"346a919709f00c0abe97d8007755a4951ec010cbe9b34a5d2c9bf2443c5860b5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OUM+9R3AW8EAdMD9cfqLg2MSNxlTpkZvQ7+QNiPK8UAShnh32N17ybrxwlHJXefFe2mfr4601RkYylFpFQ8VDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T13:16:15.768405Z","bundle_sha256":"a25bf9718b6cfa354a5f6c227588345d5775dd15b59ef23bcf9190a3406bf8f9"}}