Des Knaben Wunderhorn: Verlorne Müh'

Recording by Gustav Mahler.

Recording identifiers

ISRC
DELN22501004
CopyrightID (CopyrightChains transaction hash)
0x5f1533534c6d13f3a730daa62cc03171d2c4ae812eeb7998509728d7e9ebfa48
Copyright registration time
2026-08-01T00:16:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T00:40:43Z
Bitcoin block
960489
Canonical record hash
sha256:e60c3c4e5510eebc6dd604c314e8cf00eaadf6956c8f678888fe0d4ad5c52339

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.