Concerto en La Mineur pour clavecin et cordes, F.45: II. Larghetto

Recording by Wilhelm Friedemann Bach.

Recording identifiers

ISRC
FRU621416202
Release date of the album this recording appears on
2015-11-12
CopyrightID (CopyrightChains transaction hash)
0x35503dc30211d73fa6fdcb5dc85eb873da889272cd7f8eda0d6bc146496bd1b1
Copyright registration time
2026-07-07T15:05:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:81e15590d43dc0e7b9f7c30d30242e40d7f69a97fb699a1bd898533614c1d5eb

What this proof establishes

This recording was released in 2015, 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.