ISRC DEF059430302
Verified recording
DEF059430302 is “Die lustige Witwe / Act 3: Duett: "Lippen schweigen"” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x84bca2522bb5a55f05a081c7c92cfa7fbf1e93ea44c17069e475d9ce6d321519 and independently timestamped
in Bitcoin block 960376 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059430302.
Recording identifiers
- ISRC
- DEF059430302
- Title
- Die lustige Witwe / Act 3: Duett: "Lippen schweigen"
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x84bca2522bb5a55f05a081c7c92cfa7fbf1e93ea44c17069e475d9ce6d321519
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T09:09:19+00:00
- Bitcoin block
- 960376
- Canonical record hash
sha256:439eeb4343b33f9c9f4e9b65642f28394e00c2cf94ec7f35ac93708504c90441- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059430302
- Bitcoin block existence check
- https://blockstream.info/api/block/960376
Full record
Track page: Die lustige Witwe / Act 3: Duett: "Lippen schweigen" · Machine-readable JSON-LD