ISRC GBF077742404
Verified recording
GBF077742404 is “The Merry Widow / Act 1: Solo: I'm off to Chez Maxime... My very heavy Fatherland” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x9d5aba56715094c105ae48251f31c9d24d5258aeb96b36034ce79bc01268a60d and independently timestamped
in Bitcoin block 960209 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077742404.
Recording identifiers
- ISRC
- GBF077742404
- Title
- The Merry Widow / Act 1: Solo: I'm off to Chez Maxime... My very heavy Fatherland
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x9d5aba56715094c105ae48251f31c9d24d5258aeb96b36034ce79bc01268a60d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:15:54+00:00
- Bitcoin block
- 960209
- Canonical record hash
sha256:ee542d05d8acab30c89ea5085d9bde95086833fcefcebb504e6be1190c2f788e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077742404
- Bitcoin block existence check
- https://blockstream.info/api/block/960209
Full record
Track page: The Merry Widow / Act 1: Solo: I'm off to Chez Maxime... My very heavy Fatherland · Machine-readable JSON-LD