Octet in E-Flat Major, Op. 20, MWV R20: II. Andante

Recording identifiers

ISRC

GBF077210272

Release date of the album this recording appears on

1973-01-01

CopyrightID (CopyrightChains transaction hash)

0x65f5f9d40380110145353c08f07ea5b0ec336c712accabf1c031bcdab4662c4a

Copyright registration time

2026-07-31T21:48:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T22:27:44Z

Bitcoin block

960473

Canonical record hash

sha256:8aaffbcd12add0760dd5ca3e42d21d376607df4f981281e3062f6ac24beeaf27

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF077210272

What this proof establishes

This recording was released in 1973, 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.