ISRC GBLWD1600809
Verified recording
GBLWD1600809 is “String Quartet in C Major, Op. 76 No. 3, Hob. III: 77, "Kaiser": I. Allegro” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0x526f1b6323114c700cad34714fa9c1222f97dd73aae3a273cb43d0605958b2e0 and independently timestamped
in Bitcoin block 960381 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1600809.
Recording identifiers
- ISRC
- GBLWD1600809
- Title
- String Quartet in C Major, Op. 76 No. 3, Hob. III: 77, "Kaiser": I. Allegro
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0x526f1b6323114c700cad34714fa9c1222f97dd73aae3a273cb43d0605958b2e0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T09:50:11+00:00
- Bitcoin block
- 960381
- Canonical record hash
sha256:f378a7a8b1b14e2a99fb56ae50e5d3654ac02720397fd08f2d595b1009bda970- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1600809
- Bitcoin block existence check
- https://blockstream.info/api/block/960381
Full record
Track page: String Quartet in C Major, Op. 76 No. 3, Hob. III: 77, "Kaiser": I. Allegro · Machine-readable JSON-LD