Var. 1 a 1 Clav.

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
USSM11506177
CopyrightID (CopyrightChains transaction hash)
0x90576f36c24812f05cdf5ab410b398ca0181858c2b99ff41144d84312b76fe3e
Copyright registration time
2026-06-08T02:43:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c8686d2f44284dc3d9e59e5ed8dceca8bb8771d65d1fabc5740228e145c24b3a

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.