Prelude in D-Flat

Recording by Lili Boulanger.

Recording identifiers

ISRC
USX9P2321184
CopyrightID (CopyrightChains transaction hash)
0xa3744a09ceefee71e478cc6061457177a43d048d469df33ab4b6703b64e8580f
Copyright registration time
2026-07-07T23:30:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:958a6af5424ff966451a5129a9109b8a59c1b7ee2bbc12b948771fb829b3167a

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.