ISRC GBF077742406
Verified recording
GBF077742406 is “The Merry Widow / Act 1: Finale I: Ladies' choice!” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x9ef0d9bc2543423014c74a9c6eea89425d9287b590edbc82faf09c668f72bfe9 and independently timestamped
in Bitcoin block 960291 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077742406.
Recording identifiers
- ISRC
- GBF077742406
- Title
- The Merry Widow / Act 1: Finale I: Ladies' choice!
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x9ef0d9bc2543423014c74a9c6eea89425d9287b590edbc82faf09c668f72bfe9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T18:23:33+00:00
- Bitcoin block
- 960291
- Canonical record hash
sha256:98ee6f23e40aab9822471f2ee51ee3076531843c087dfafaad2d3bafd5942d41- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077742406
- Bitcoin block existence check
- https://blockstream.info/api/block/960291
Full record
Track page: The Merry Widow / Act 1: Finale I: Ladies' choice! · Machine-readable JSON-LD