The Art of Fugue, BWV 1080: Contrapunctus I, a 4

Recording by Johann Sebastian Bach.

Recording identifiers

ISRC
FR7JM2237010
Release date of the album this recording appears on
2023-06-09
CopyrightID (CopyrightChains transaction hash)
0x08459ba27e820f96bd3c8528baec41699163f0936a5b05829351e3d27bbf22b0
Copyright registration time
2026-07-29T13:05:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T13:21:01Z
Bitcoin block
960111
Canonical record hash
sha256:2da59a7cb47bc8fe25058a77168815c2940edd1971ff7707ae690c84f6e7d87a

What this proof establishes

This recording was released in 2023. 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.