ISRC DEF065900500
Verified recording
DEF065900500 is “The Gypsy Princess (Die Csárdásfürstin): "Joj, Mamam"” by Emmerich Kálmán,
registered on the CopyrightChains blockchain with CopyrightID
0xa7329b8510debb20bbc3d8b8965cf72422d2c47fb9efbf4250775f4efee7dcc1 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/DEF065900500.
Recording identifiers
- ISRC
- DEF065900500
- Title
- The Gypsy Princess (Die Csárdásfürstin): "Joj, Mamam"
- Artist
- Emmerich Kálmán
- CopyrightID (CopyrightChains transaction hash)
0xa7329b8510debb20bbc3d8b8965cf72422d2c47fb9efbf4250775f4efee7dcc1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:032212e8a5b72bba05b54ed0987a94deb80839ded4b4134c2624eee14caf45e0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF065900500
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: The Gypsy Princess (Die Csárdásfürstin): "Joj, Mamam" · Machine-readable JSON-LD