Ligeti: String Quartet No. 1 "Métamorphoses nocturnes": V. Prestissimo

Recording identifiers

ISRC

GBAYC9903805

CopyrightID (CopyrightChains transaction hash)

0x9a20be452ed431fb588a9760811c56b4c546bd98f8fece0d2fb53dfc2d95ad75

Copyright registration time

2026-07-31T13:41:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:20:15Z

Bitcoin block

960418

Canonical record hash

sha256:23a0e9e07b0959be821d3c1120513764661191e2603bb02d26e29080e9a1f57f

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.