Bach, JS: Harpsichord Concerto No. 4 in A Major, BWV 1055: II. Larghetto

Recording identifiers

ISRC

GBAYC1602360

Release date of the album this recording appears on

2017-02-03

CopyrightID (CopyrightChains transaction hash)

0x34e6eab7db20472c50db95423fe5b75353380c038d1c82f314619470058ee29a

Copyright registration time

2026-07-06T07:34:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-13T07:53:33Z

Bitcoin block

957819

Canonical record hash

sha256:f5152f1ef9197df70633117d14c90d66e55d712b980424ba932872d590565a09

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC1602360

What this proof establishes

This recording was released in 2017, 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.