ISRC FRZ139800450
Verified recording
FRZ139800450 is “String Quartets, Op. 76, No. 1 in G Major, Hob. III:75: IV. Finale. Allegro ma non troppo” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0xba7f85f562f6200d1c96478b5ffd139112226f8d3a8c4d40b2773db51a65739f and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ139800450.
Recording identifiers
- ISRC
- FRZ139800450
- Title
- String Quartets, Op. 76, No. 1 in G Major, Hob. III:75: IV. Finale. Allegro ma non troppo
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0xba7f85f562f6200d1c96478b5ffd139112226f8d3a8c4d40b2773db51a65739f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:272cde9878389c36234ab9f552a557aa64ca44ee3c52680cb9a7486c34952f9e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ139800450
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: String Quartets, Op. 76, No. 1 in G Major, Hob. III:75: IV. Finale. Allegro ma non troppo · Machine-readable JSON-LD