Den glada änkan: Viljasången

Recording by Franz Lehár.

Recording identifiers

ISRC
SEVGX8100102
CopyrightID (CopyrightChains transaction hash)
0xcc5e15495cf637c5a4131608580c860cab433576b77a5b28b9275159c071cedf
Copyright registration time
2026-01-28T21:15:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:afe70b529ec11c0ed853e35c801e815dc2d5c49bba930d483704dcf657c8197b

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.