ISRC FRZ299502080
Verified recording
FRZ299502080 is “Ein herz-ein sinn, Op. 323: Polka Mazurka” by Johann Strauss II,
registered on the CopyrightChains blockchain with CopyrightID
0x3c1e11fb89f16ab842f0b602ab5185ebe338ecd4c4abbdabcb8d5afaadad3cfe and independently timestamped
in Bitcoin block 960468 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ299502080.
Recording identifiers
- ISRC
- FRZ299502080
- Title
- Ein herz-ein sinn, Op. 323: Polka Mazurka
- Artist
- Johann Strauss II
- CopyrightID (CopyrightChains transaction hash)
0x3c1e11fb89f16ab842f0b602ab5185ebe338ecd4c4abbdabcb8d5afaadad3cfe
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T21:25:57+00:00
- Bitcoin block
- 960468
- Canonical record hash
sha256:271f00b2a9cd1d538efb4a087060a97408151284e97a7a9b85df006a99b844a1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ299502080
- Bitcoin block existence check
- https://blockstream.info/api/block/960468
Full record
Track page: Ein herz-ein sinn, Op. 323: Polka Mazurka · Machine-readable JSON-LD