ISRC FRZ209701703
Verified recording
FRZ209701703 is “Lehár : Die lustige Witwe [The Merry Widow] : Lippen schweigen” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xf8de7a9d6c868c6359cbe1b3827db022e2afe6fa7531ec075daa8c6c4d5000fc and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209701703.
Recording identifiers
- ISRC
- FRZ209701703
- Title
- Lehár : Die lustige Witwe [The Merry Widow] : Lippen schweigen
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xf8de7a9d6c868c6359cbe1b3827db022e2afe6fa7531ec075daa8c6c4d5000fc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:d662e03580f0fb42065c38695fc173205fd7c7f92dc06e07d85790910b759e59- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209701703
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Lehár : Die lustige Witwe [The Merry Widow] : Lippen schweigen · Machine-readable JSON-LD