Valse Triste

Recording by Ferdinand Lang & South German Philharmonic.

Recording identifiers

ISRC
USA371097286
CopyrightID (CopyrightChains transaction hash)
0xe3adbc7af567082d2c23e55a285c620bf6f5dfc0e1a304f39aa12e47c7e679f6
Copyright registration time
2026-07-30T08:32:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T09:37:10Z
Bitcoin block
960236
Canonical record hash
sha256:640384f30e1a5071c0a71839a0d331f008876a8b040595774fd3c542ee8f1dda

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.