Liebesliederwalzer, Op. 52: XV. Nachtigall, sie singt so schön

Recording by Johannes Brahms.

Recording identifiers

ISRC
FRZ140617150
Release date of the album this recording appears on
2007-08-28
CopyrightID (CopyrightChains transaction hash)
0x25c12afee3e477de92227cd9099b38ac536e399042fd6068175730e090a23e83
Copyright registration time
2026-07-29T13:17:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T13:21:01Z
Bitcoin block
960111
Canonical record hash
sha256:0a41d82cde7865ba15c5169a041bf37d393d349c5491d49137310a8bd242b900

What this proof establishes

This recording was released in 2007, 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.