ISRC HKI199252809
Verified recording
HKI199252809 is “String Quartet No. 62 in C Major, Op. 76, No. 3, Hob.III:77, "Emperor": I. Allegro” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0xbdc3d59fc453345ed88f6e1930492392f4c8d4eb9a59b0573019c63d7fb5ed47 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/HKI199252809.
Recording identifiers
- ISRC
- HKI199252809
- Title
- String Quartet No. 62 in C Major, Op. 76, No. 3, Hob.III:77, "Emperor": I. Allegro
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0xbdc3d59fc453345ed88f6e1930492392f4c8d4eb9a59b0573019c63d7fb5ed47
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:f38f8eded814c4666202f115ecb5b03dde5ac4dfd753bfe154ada2dfe4bda086- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199252809
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: String Quartet No. 62 in C Major, Op. 76, No. 3, Hob.III:77, "Emperor": I. Allegro · Machine-readable JSON-LD