Kindertotenlieder: Nun will die Sonn' so hell aufgehn

Recording by Gustav Mahler.

Recording identifiers

ISRC
USA370918099
CopyrightID (CopyrightChains transaction hash)
0xcb4362c66cc49613779e47534a5b62def3bae3332e5cdeab5ae24b10b31845b0
Copyright registration time
2026-07-07T13:12:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:45c0efa506351ea23c294bff87818ed0cf882509e6bf1b9c46979474be32c9eb

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.