ISRC DEF066519700
Verified recording
DEF066519700 is “Gräfin Mariza - Operetta in 3 Acts: Einmal möcht' ich wieder tanzen” by Emmerich Kálmán,
registered on the CopyrightChains blockchain with CopyrightID
0xd47c9c1a2c73fdb673a17ccde62868858d901b2e79190dabe41bdbec8454e208 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/DEF066519700.
Recording identifiers
- ISRC
- DEF066519700
- Title
- Gräfin Mariza - Operetta in 3 Acts: Einmal möcht' ich wieder tanzen
- Artist
- Emmerich Kálmán
- CopyrightID (CopyrightChains transaction hash)
0xd47c9c1a2c73fdb673a17ccde62868858d901b2e79190dabe41bdbec8454e208
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:85a65abccfe4a985abcfd55a99ffe46d90b8954f526c75c9f04c61c794415b37- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066519700
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Gräfin Mariza - Operetta in 3 Acts: Einmal möcht' ich wieder tanzen · Machine-readable JSON-LD