Des Knaben Wunderhorn: Wer hat dies Liedlein erdacht?

Recording by Gustav Mahler.

Recording identifiers

ISRC
FR7JM1978020
CopyrightID (CopyrightChains transaction hash)
0xf86092abcc5f8ff85bc634bf9bcfe8abe378cbc086b63b421bbf2358b73be84d
Copyright registration time
2026-07-06T20:12:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:49fc2ab0d4b8894775cecee5a863d1e369f541632e9937018f3f873891d8c3eb

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.