Prelude in D

Recording by Holger Dieffendahl.

Recording identifiers

ISRC
USL4Q1898793
CopyrightID (CopyrightChains transaction hash)
0x474e7a5821b2b3b0e384d96ef6d95f9c6a3abf69db6c95fc883ac189ba8b7646
Copyright registration time
2026-06-25T05:58:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:ace1e7494a0d1cdc20e1642d9d94efd19f67aa79e8c44f05c8543ec62cbbf99a

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.