Preludium in E Major

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
US5UL1001526
CopyrightID (CopyrightChains transaction hash)
0x89d31a25f4bfa8006bfb72c41d16502d655e4ee3214e9f386dfa57f94ae5f75a
Copyright registration time
2026-07-07T09:29:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c7430a675bed76783db43a76ce6ee6b67d32ae05bf9bff60054c6c8840f815df

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.