ISRC DEF066510010
Verified recording
DEF066510010 is “Gräfin Mariza - Operetta in 3 Acts: Komm, Czigan” by Emmerich Kálmán,
registered on the CopyrightChains blockchain with CopyrightID
0x2e9cf2e6a4debf6b181b3fc8706f530dc7d2492a334d21978478679e3cafe28e and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066510010.
Recording identifiers
- ISRC
- DEF066510010
- Title
- Gräfin Mariza - Operetta in 3 Acts: Komm, Czigan
- Artist
- Emmerich Kálmán
- CopyrightID (CopyrightChains transaction hash)
0x2e9cf2e6a4debf6b181b3fc8706f530dc7d2492a334d21978478679e3cafe28e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:755f55b9ca4bcb8177d1e12992ba9cdf95f6ac7f9447e64afe4a3737b33e9122- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066510010
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: Gräfin Mariza - Operetta in 3 Acts: Komm, Czigan · Machine-readable JSON-LD