Études, Book 1: No. 1, Désordre

Recording by György Ligeti.

Recording identifiers

ISRC
USSM19503318
CopyrightID (CopyrightChains transaction hash)
0x12b75dad1e5531b463e71b3dbcb762e5b2b1e1cd9bd407a43c38609646db4a64
Copyright registration time
2026-06-26T21:50:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:04b738344f417a530b00a89129aa1ebd98859ad04bf44a7def5cd41cb337f1ec

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.