Gold and Silver Waltz, Op. 79

Recording by Franz Lehár.

Recording identifiers

ISRC
NLY332002674
CopyrightID (CopyrightChains transaction hash)
0x10d6ed72f2c66cdd7877898ae659759ab1dec843ab2abbd0f204c737a21846ac
Copyright registration time
2026-07-07T14:40:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:10647ceb96cb6e2af7cf8c45bafc6519a8943b61689a010cdc67d3ea793d1a72

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.