ISRC FRX201644681
Verified recording
FRX201644681 is “String Quartet No. 34 in D Major, Op. 20 No. 4, Hob. III:34 "Sun Quartet No. 4": II. Un poco adagio e affettuoso” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0x0236951a4995d7ef4218cf2abe9e1ed11ac41b0d765309017a4a23997910ebd5 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/FRX201644681.
Recording identifiers
- ISRC
- FRX201644681
- Title
- String Quartet No. 34 in D Major, Op. 20 No. 4, Hob. III:34 "Sun Quartet No. 4": II. Un poco adagio e affettuoso
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0x0236951a4995d7ef4218cf2abe9e1ed11ac41b0d765309017a4a23997910ebd5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:3aefc8d6d99aa00959c998d522468d4d23f3972fd27cf209fb5ce4d20d3fb3ff- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201644681
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: String Quartet No. 34 in D Major, Op. 20 No. 4, Hob. III:34 "Sun Quartet No. 4": II. Un poco adagio e affettuoso · Machine-readable JSON-LD