Keyboard Concerto No. 4 in A Major, BWV 1055: II. Larghetto

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
USSM10100498
Release date of the album this recording appears on
2025-04-13
CopyrightID (CopyrightChains transaction hash)
0x367b282501b29a9ed61a42879fa1debdbaf13d65744b1d76a1aa7e7e55de7bfc

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T09:37:10Z
Bitcoin block
960236
Canonical record hash
sha256:6f7e476a722a0c3c7b567cb8042f1285f24504939f3b4071692eb309042fdac2

What this proof establishes

This recording was released in 2025. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.