ISRC HKI199252204
Verified recording
HKI199252204 is “String Quartet No. 32 in C Major, Op. 33, No. 3, Hob.III:39, "The Bird": IV. Rondo: Presto” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0x4631ad0fb519f75b0ea787ce07e0bf4f38c473e39f814da47255c1c1f1e44a50 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199252204.
Recording identifiers
- ISRC
- HKI199252204
- Title
- String Quartet No. 32 in C Major, Op. 33, No. 3, Hob.III:39, "The Bird": IV. Rondo: Presto
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0x4631ad0fb519f75b0ea787ce07e0bf4f38c473e39f814da47255c1c1f1e44a50
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:cc028e99ce6673bb4708b1cef42e1616c8eef4db57d2892365b8867ad192320b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199252204
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: String Quartet No. 32 in C Major, Op. 33, No. 3, Hob.III:39, "The Bird": IV. Rondo: Presto · Machine-readable JSON-LD