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

Recording by György Ligeti.

Recording identifiers

ISRC
HKI190229913
CopyrightID (CopyrightChains transaction hash)
0x7c65494ec4f41e862faa8c52ab4f6826ce3016691d74319d20baf5ddd115019e
Copyright registration time
2026-06-22T18:58:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9522bc71b5d666a7931bf7acaa2b965a64146255df161647133a2712ae2f719f

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.