Etudes Simples - Etude VI

Recording by Leo Brouwer.

Recording identifiers

ISRC
DET311101513
CopyrightID (CopyrightChains transaction hash)
0x379218cdd993f7d7c222640dd9220f4fd4882944eabb37ea53e6d3cf4d18a7c5
Copyright registration time
2026-07-07T14:34:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:8f2991695a29e6836c515ad445890d1756989181ee70464388c5a951bf16634d

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.