ISRC DEF066814700
Verified recording
DEF066814700 is “Gräfin Mariza - Operetta in 3 Acts: Höre ich Zigeunergeigen / Wo die Liebe wohnt” by Emmerich Kálmán,
registered on the CopyrightChains blockchain with CopyrightID
0xeb1d9b2bbfbb09287635fd04ac7983e29c67a2464e8e5e2b7c446e39039cdb03 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/DEF066814700.
Recording identifiers
- ISRC
- DEF066814700
- Title
- Gräfin Mariza - Operetta in 3 Acts: Höre ich Zigeunergeigen / Wo die Liebe wohnt
- Artist
- Emmerich Kálmán
- CopyrightID (CopyrightChains transaction hash)
0xeb1d9b2bbfbb09287635fd04ac7983e29c67a2464e8e5e2b7c446e39039cdb03
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:9e10881a61c5ed41f8e55a61eaf91da0751567c3a676c7d36ef8b05baa41777a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066814700
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Gräfin Mariza - Operetta in 3 Acts: Höre ich Zigeunergeigen / Wo die Liebe wohnt · Machine-readable JSON-LD