Var. 5 a 1 ovvero 2 Clav.

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
USSM11506181
CopyrightID (CopyrightChains transaction hash)
0x50371a94b26af37d6f7e6dae1effdb012038af147d8619bc675f03d24a5e2d06
Copyright registration time
2026-06-08T11:34:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:05b1dcf284d9ee8df61b95ca8b0f18ac9a701d107152e4c3910cc4ab09ca80fb

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.