ISRC GBJ2F1010765
Verified recording
GBJ2F1010765 is “The Merry Widow: Act III, Finale "Ja, das Studium der Weiber ist schwer"” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xb425759fe1b0e569ce8cae668258d0a31849c055aa93be661190717554d4d632 and independently timestamped
in Bitcoin block 960340 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJ2F1010765.
Recording identifiers
- ISRC
- GBJ2F1010765
- Title
- The Merry Widow: Act III, Finale "Ja, das Studium der Weiber ist schwer"
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xb425759fe1b0e569ce8cae668258d0a31849c055aa93be661190717554d4d632
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T03:15:04+00:00
- Bitcoin block
- 960340
- Canonical record hash
sha256:4f78ada082b1d7580fc9cf9a114c5f09218dcc7b86fd125426adee444f5c0d93- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJ2F1010765
- Bitcoin block existence check
- https://blockstream.info/api/block/960340
Full record
Track page: The Merry Widow: Act III, Finale "Ja, das Studium der Weiber ist schwer" · Machine-readable JSON-LD