ISRC FRZ299502110
Verified recording
FRZ299502110 is “Sylphenpolka, Op. 309: Polka Trio Schluss” by Johann Strauss II,
registered on the CopyrightChains blockchain with CopyrightID
0x87a6b22142dccd31da5073d04d324588c3722fce1a7adfa42b2a48a1150e8427 and independently timestamped
in Bitcoin block 960216 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ299502110.
Recording identifiers
- ISRC
- FRZ299502110
- Title
- Sylphenpolka, Op. 309: Polka Trio Schluss
- Artist
- Johann Strauss II
- CopyrightID (CopyrightChains transaction hash)
0x87a6b22142dccd31da5073d04d324588c3722fce1a7adfa42b2a48a1150e8427
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T06:39:12+00:00
- Bitcoin block
- 960216
- Canonical record hash
sha256:ad941cb81e82653c637c190b46a04ccaa0be067c68c2808b36642f952354ea4f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ299502110
- Bitcoin block existence check
- https://blockstream.info/api/block/960216
Full record
Track page: Sylphenpolka, Op. 309: Polka Trio Schluss · Machine-readable JSON-LD