ISRC USA561297609
Verified recording
USA561297609 is “String Quartet in F Major, Op. 3: No. 5, "Serenade"” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0x5331603c4a28dae931570199765fe02df382e72c034d70f8b33f5c4178f58df7 and independently timestamped
in Bitcoin block 960463 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561297609.
Recording identifiers
- ISRC
- USA561297609
- Title
- String Quartet in F Major, Op. 3: No. 5, "Serenade"
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0x5331603c4a28dae931570199765fe02df382e72c034d70f8b33f5c4178f58df7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:42:35+00:00
- Bitcoin block
- 960463
- Canonical record hash
sha256:f40a9f55070c39e726500a5facbca7b773b0576b0ba0d80ce29138e959b034b9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561297609
- Bitcoin block existence check
- https://blockstream.info/api/block/960463
Full record
Track page: String Quartet in F Major, Op. 3: No. 5, "Serenade" · Machine-readable JSON-LD