Kindertotenlieder: Nun will die Sonn' so hell aufgeh'n!

Recording by Gustav Mahler.

Recording identifiers

ISRC
CA5KV1310005
CopyrightID (CopyrightChains transaction hash)
0x8a133ab48ec4ecfdb6879082de79c24f86297e37418c0625cc4fbf9472becac2
Copyright registration time
2026-07-07T07:02:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:dca1faaa43a1c4f1ccddfb177736fe15421f64acf01f54f0458a5a30f1b6536f

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.