ISRC FRZ140815100
Verified recording
FRZ140815100 is “String Quartet in C major, Hob.III:39 "The Bird": II. Allegretto” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0x44c36e64e30bfeca3da97dbc13203dcc3cef19c03a632c9d6071b86aa5a0cf9b and independently timestamped
in Bitcoin block 960379 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140815100.
Recording identifiers
- ISRC
- FRZ140815100
- Title
- String Quartet in C major, Hob.III:39 "The Bird": II. Allegretto
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0x44c36e64e30bfeca3da97dbc13203dcc3cef19c03a632c9d6071b86aa5a0cf9b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T09:25:34+00:00
- Bitcoin block
- 960379
- Canonical record hash
sha256:a0dca2512e9c20d2f3a700040d958856fc98230b6ccc3dbe0362781614c3cd22- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140815100
- Bitcoin block existence check
- https://blockstream.info/api/block/960379
Full record
Track page: String Quartet in C major, Hob.III:39 "The Bird": II. Allegretto · Machine-readable JSON-LD