Piano Trio No. 2, Op. 45: III. Andante doloroso

Recording by Gunnar de Frumerie.

Recording identifiers

ISRC
QMDA62128565
Release date of the album this recording appears on
1988-01-01
CopyrightID (CopyrightChains transaction hash)
0x14a4d67acbc809e32971bfffa48baea3af017c6057b77f02a7af1714f79980ee
Copyright registration time
2026-01-28T21:06:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:85375ea59249ec259fc3fa6a6468b79732fddbee40cf6b9c276311fce0e726dd

What this proof establishes

This recording was released in 1988, 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.