Var. 25 a 2 Clav.

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
USSM11506201
CopyrightID (CopyrightChains transaction hash)
0x5cb73904d0f66878281a3e1a03538e69947c76e50f47cabc2dccfed5a984e891
Copyright registration time
2026-06-11T02:21:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:02ff59848c9e6ca12077ad706a01af425559cfeaea0a1c7680a7733947b71691

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.