ISRC GBF079710250
Verified recording
GBF079710250 is “Die lustige Witwe / Act 2: Vilja-Lied” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xb97cacae4cecdce324d0b5b2a02577d97f294f63046886f07679cdf2ba401ab1 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079710250.
Recording identifiers
- ISRC
- GBF079710250
- Title
- Die lustige Witwe / Act 2: Vilja-Lied
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xb97cacae4cecdce324d0b5b2a02577d97f294f63046886f07679cdf2ba401ab1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:2b55d72b282793fc009945e63991de39a3d2a7dd37132cbedf9dc848294a9975- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079710250
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Die lustige Witwe / Act 2: Vilja-Lied · Machine-readable JSON-LD