平均律クラヴィーア曲集 第2巻 第21番 変ロ長調 BWV 890 Fugue No.21
Recording by Johann Sebastian Bach.
Recording identifiers
- ISRC
- JPG201417268
- CopyrightID (CopyrightChains transaction hash)
- 0x1d6b939f01e5d6a8d5c909754f9dac6494d42350fa62a14f94f1e6700775e0a9
- Copyright registration time
- 2026-07-07T21:26:01+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41Z
- Bitcoin block
- 957120
- Canonical record hash
- sha256:ea9552d0627d2078688496145b1f70e1845790e392d7659ca3f46bc29b37acb7
What this proof establishes
This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.