ISRC FRU621841411
Verified recording
FRU621841411 is “String Quartet in F major, Hob.III:17: II. Andante Cantabile” by Roman Hoffstetter,
registered on the CopyrightChains blockchain with CopyrightID
0x16cb7523e0c2c067a806fd088b03ba6ae7893dde18c0820bd9e97959ff2d189e and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU621841411.
Recording identifiers
- ISRC
- FRU621841411
- Title
- String Quartet in F major, Hob.III:17: II. Andante Cantabile
- Artist
- Roman Hoffstetter
- CopyrightID (CopyrightChains transaction hash)
0x16cb7523e0c2c067a806fd088b03ba6ae7893dde18c0820bd9e97959ff2d189e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:7d4fc0a4cd1d525f756060a1c81b8ce4aa881cdb2fe5ef53e9fc7196c7e79816- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU621841411
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: String Quartet in F major, Hob.III:17: II. Andante Cantabile · Machine-readable JSON-LD