ISRC GBJ2F1010757
Verified recording
GBJ2F1010757 is “The Merry Widow: Act II, "Ha! Ha!"” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xfc08a95dfa900afb5b0b058440ee3147694882c70470672a6807e0ded1f191cc and independently timestamped
in Bitcoin block 960277 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJ2F1010757.
Recording identifiers
- ISRC
- GBJ2F1010757
- Title
- The Merry Widow: Act II, "Ha! Ha!"
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xfc08a95dfa900afb5b0b058440ee3147694882c70470672a6807e0ded1f191cc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T16:10:47+00:00
- Bitcoin block
- 960277
- Canonical record hash
sha256:5f6a1d5dec41006a4e8255e8173df2a93c3979daa32e765c2158c29a49e70e44- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJ2F1010757
- Bitcoin block existence check
- https://blockstream.info/api/block/960277
Full record
Track page: The Merry Widow: Act II, "Ha! Ha!" · Machine-readable JSON-LD