Des Knaben Wunderhorn: IV. Wer hat dies Liedlein erdacht?

Recording by Gustav Mahler.

Recording identifiers

ISRC
FRZ140523070
CopyrightID (CopyrightChains transaction hash)
0xbae4a22a9c773d9513db6f5e859c6827bbd8614de25e732f87c6f4c0939ed596
Copyright registration time
2026-07-07T07:36:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e88dca220cff6aa8840e52304206980651e38542df0b42bb3ea152dfb301cec5

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.