Piano Quartet in E-Flat Major, Op. 47: I. Sostenuto assai - Allegro ma non troppo

Recording identifiers

ISRC

DES380011844

Release date of the album this recording appears on

1985-01-01

CopyrightID (CopyrightChains transaction hash)

0x646a7fc8f197f98b77f02ba9020fff1c7d8d2090952ef8d6a72fc6d1549795cf

Copyright registration time

2026-07-30T09:18:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T09:57:33Z

Bitcoin block

960240

Canonical record hash

sha256:59da1c574ad9cd0972e4274d594b441b8a14271fefd22db175d8c41ab97c4046

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DES380011844

What this proof establishes

This recording was released in 1985, 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.