ISRC DEF066519720
Verified recording
DEF066519720 is “Gräfin Mariza - Operetta in 3 Acts: Einleitung - Höre ich Zigeunergeigen” by Emmerich Kálmán,
registered on the CopyrightChains blockchain with CopyrightID
0xabe8206ec855db2815a36e8d7e3c091f83fb0fc53365867ad2a2b64147864363 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/DEF066519720.
Recording identifiers
- ISRC
- DEF066519720
- Title
- Gräfin Mariza - Operetta in 3 Acts: Einleitung - Höre ich Zigeunergeigen
- Artist
- Emmerich Kálmán
- CopyrightID (CopyrightChains transaction hash)
0xabe8206ec855db2815a36e8d7e3c091f83fb0fc53365867ad2a2b64147864363
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:9f2d2316bd5d0cda62772b85cd4f68772243169562298766e7a136ab398c4b85- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066519720
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Gräfin Mariza - Operetta in 3 Acts: Einleitung - Höre ich Zigeunergeigen · Machine-readable JSON-LD