Grosse Fuge in B Flat Major, Op. 133

Recording identifiers

ISRC

DEF059404310

Release date of the album this recording appears on

1997-01-01

CopyrightID (CopyrightChains transaction hash)

0x68fa4e30d522662eef8ff7d0b59ba44586babdcd6e00337721198db78b10d050

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T09:50:37Z

Bitcoin block

960383

Canonical record hash

sha256:3bb273991f3cee6f166b70f0e9b45cdba3563042c6d0f30f03146afdd1943035

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF059404310

What this proof establishes

This recording was released in 1997, 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.