Var. 23 a 2 Clav.

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
USSM11506199
CopyrightID (CopyrightChains transaction hash)
0x76cc0539f9c1c609d4776a231c780c5b9cbde3b51a79d6dbcf8bf1213a3276ba
Copyright registration time
2026-06-10T14:10:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:7d1d93ac3043ea3e9dbb7d133d3bfbdcb2aa5317b6099694c92940885e7ba144

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.