Des Knaben Wunderhorn: II. Verlor'ne Müh'

Recording by Gustav Mahler.

Recording identifiers

ISRC
FRZ140523020
CopyrightID (CopyrightChains transaction hash)
0xedfbb8254c1d62bd1afe9da938ba126411abc08aeac301d68e7f398fb212fe9d
Copyright registration time
2026-07-07T02:24:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:99ae46cd153a96c11ce7a871175e314d4c7a3a2fcb4b38d9ae7661a8c6c987e8

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.