平均律クラヴィーア曲集 第2巻 第20番 イ短調 BWV 889 Prerude No.20
Recording by Johann Sebastian Bach.
Recording identifiers
- ISRC
- JPG201417265
- CopyrightID (CopyrightChains transaction hash)
- 0x173d1ee29f03dda52b3ca2a5c8ce04b9b36e4dd7ac000acb57edd835c0e7d7b3
- Copyright registration time
- 2026-07-07T21:35:21+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41Z
- Bitcoin block
- 957120
- Canonical record hash
- sha256:5172873755c799070d602ce8ea4bb4d1ab80e3515ca234267c65af7225eb473a
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.