I. Ouverture

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
HKI199911301
CopyrightID (CopyrightChains transaction hash)
0x3d324cee559f2d6a305de54b1a670320004c3a9ef6cb911e3f6c2394df7494ab

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T20:09:33Z
Bitcoin block
960302
Canonical record hash
sha256:5f8996ece8e78e953720a6280449ffee6d8054207203d2077cef9a7fc6a53826

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.