ISRC DEF066617260
Verified recording
DEF066617260 is “Die Zirkusprinzessin - Operetta In 3 Acts: Leise schwebt das Glück vorüber” by Emmerich Kálmán,
registered on the CopyrightChains blockchain with CopyrightID
0x03bfdd204b28276278e1b6726a407c8629d73d771753490cc8e53ca8a1a98c22 and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066617260.
Recording identifiers
- ISRC
- DEF066617260
- Title
- Die Zirkusprinzessin - Operetta In 3 Acts: Leise schwebt das Glück vorüber
- Artist
- Emmerich Kálmán
- CopyrightID (CopyrightChains transaction hash)
0x03bfdd204b28276278e1b6726a407c8629d73d771753490cc8e53ca8a1a98c22
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:b09f3dd7485be8b193ef60b2c7af3a70dc4963dc35fac8301ef2674cc033966e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066617260
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Die Zirkusprinzessin - Operetta In 3 Acts: Leise schwebt das Glück vorüber · Machine-readable JSON-LD