ISRC DEF057230407
Verified recording
DEF057230407 is “Die lustige Witwe, Act II: No. 8, Duet. Heia, Mädel, aufgeschaut – Dummer, dummer Reitersmann” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0xb00f69555f9ed9d5b65f87cc91b5471173b904756e882053d249738a57025b1a and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230407.
Recording identifiers
- ISRC
- DEF057230407
- Title
- Die lustige Witwe, Act II: No. 8, Duet. Heia, Mädel, aufgeschaut – Dummer, dummer Reitersmann
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0xb00f69555f9ed9d5b65f87cc91b5471173b904756e882053d249738a57025b1a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:fe1beae954e6439e5dff7a1b03d53b993fcf03e0b49b6c1db1de2058791a2ff0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230407
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Die lustige Witwe, Act II: No. 8, Duet. Heia, Mädel, aufgeschaut – Dummer, dummer Reitersmann · Machine-readable JSON-LD