6 Variations sur B-A-C-H, Op. 10: I. Valse

Recording by Nikolai Rimsky-Korsakov.

Recording identifiers

ISRC
FR1Q41900022
Release date of the album this recording appears on
2020-07-15
CopyrightID (CopyrightChains transaction hash)
0xa273908675adc851a96716778b152cbd824ebc8c607548b80301291531af4695
Copyright registration time
2026-07-31T14:20:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:20:15Z
Bitcoin block
960418
Canonical record hash
sha256:68f4fb261e0ef9d20497938daf8b0fdba6a955c1a0ffec68205d9f4d331f4774

What this proof establishes

This recording was released in 2020, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.