ISRC DEF066509930
Verified recording
DEF066509930 is “Gräfin Mariza - Operetta in 3 Acts: Ich möchte träumen” by Emmerich Kálmán,
registered on the CopyrightChains blockchain with CopyrightID
0xf7930868db344d71f3965754c682ead893f08d0b94b8f4681e61cb9e337ac32d and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066509930.
Recording identifiers
- ISRC
- DEF066509930
- Title
- Gräfin Mariza - Operetta in 3 Acts: Ich möchte träumen
- Artist
- Emmerich Kálmán
- CopyrightID (CopyrightChains transaction hash)
0xf7930868db344d71f3965754c682ead893f08d0b94b8f4681e61cb9e337ac32d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:d63e52db2c598a3bf299462a9542f1429c4e1d12f0763a15c91300c18ce37d2f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066509930
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Gräfin Mariza - Operetta in 3 Acts: Ich möchte träumen · Machine-readable JSON-LD