Var. 26 a 2 Clav.

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
USSM11506202
CopyrightID (CopyrightChains transaction hash)
0x8359b5e71cfa5d37a39bbe570c707c75b6875e8b940b8e06c2f60aaecd774e47
Copyright registration time
2026-06-11T03:59:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:fce95e1005ecbb35ba0614ae3b0a8b00d3e3b642c0e44e7f0d6f5f847aa0515e

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.