Études, Book 2: No. 13, L'escalier du diable

Recording by György Ligeti.

Recording identifiers

ISRC
DEN962300222
CopyrightID (CopyrightChains transaction hash)
0x80f2073fb6c781bdf3e50e9945f659b2f189ebac4aadff325e254247d00eee28
Copyright registration time
2026-06-25T23:48:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:223fc237732a5769efed560beb197bfb782482b2fe46cca032838e00f41d22f5

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.