ISRC DEF066509970
Verified recording
DEF066509970 is “Gräfin Mariza - Operetta in 3 Acts: Eh' ein kurzer Mond” by Emmerich Kálmán,
registered on the CopyrightChains blockchain with CopyrightID
0x6fe6ef4ac772c5696a1b17702ea7ec982aaa427711a984efef75d65a5bc3306e and independently timestamped
in Bitcoin block 960418 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066509970.
Recording identifiers
- ISRC
- DEF066509970
- Title
- Gräfin Mariza - Operetta in 3 Acts: Eh' ein kurzer Mond
- Artist
- Emmerich Kálmán
- CopyrightID (CopyrightChains transaction hash)
0x6fe6ef4ac772c5696a1b17702ea7ec982aaa427711a984efef75d65a5bc3306e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:20:15+00:00
- Bitcoin block
- 960418
- Canonical record hash
sha256:b7709e357ae12875b44c22ec526a915850ed7e11cffa65506dba5d83d6205353- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066509970
- Bitcoin block existence check
- https://blockstream.info/api/block/960418
Full record
Track page: Gräfin Mariza - Operetta in 3 Acts: Eh' ein kurzer Mond · Machine-readable JSON-LD