ISRC FRZ140815090
Verified recording
FRZ140815090 is “String Quartet in C major, Hob.III:39 "The Bird": I. Allegro moderato” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0xd0b354f8ac37d5e64853b102a5e904179cdbd74d3a633b79278d2ddc6934ac73 and independently timestamped
in Bitcoin block 960209 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140815090.
Recording identifiers
- ISRC
- FRZ140815090
- Title
- String Quartet in C major, Hob.III:39 "The Bird": I. Allegro moderato
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0xd0b354f8ac37d5e64853b102a5e904179cdbd74d3a633b79278d2ddc6934ac73
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:15:54+00:00
- Bitcoin block
- 960209
- Canonical record hash
sha256:f7c2bb6f006c455162b3b99dbce7abeeb02e0da10b5316cd61822383e0089c62- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140815090
- Bitcoin block existence check
- https://blockstream.info/api/block/960209
Full record
Track page: String Quartet in C major, Hob.III:39 "The Bird": I. Allegro moderato · Machine-readable JSON-LD