Piano Quartet in E flat, Op. 47: 1. Sostenuto assai - Allegro ma non troppo

Recording identifiers

ISRC

DEF059304901

Release date of the album this recording appears on

1995-01-01

CopyrightID (CopyrightChains transaction hash)

0x8a5161c52d511e7f0499118b6a8b58fb38731b6887946e399294c6c62af5d786

Copyright registration time

2026-06-22T04:52:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:3b2aed3fcbcd5c9cdca278b91890b004000ec0578a5bbb20900edbf64a708cfe

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF059304901

What this proof establishes

This recording was released in 1995, 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.