ISRC USSM18100987
Verified recording
USSM18100987 is “String Quartet No. 4 in B-Flat Major, Hob. III:78 "Sunrise": IV. Finale - Allegro ma non troppo” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0x2bf4ac8763f75daf7474a3d6d7d299a1fc81d5abcabe6aa98224817c349e7bcf and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18100987.
Recording identifiers
- ISRC
- USSM18100987
- Title
- String Quartet No. 4 in B-Flat Major, Hob. III:78 "Sunrise": IV. Finale - Allegro ma non troppo
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0x2bf4ac8763f75daf7474a3d6d7d299a1fc81d5abcabe6aa98224817c349e7bcf
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:0bf94582896ef70e90c2560626eb344f1e684ba42a0fe5f06058a1799ab1a6b7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18100987
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: String Quartet No. 4 in B-Flat Major, Hob. III:78 "Sunrise": IV. Finale - Allegro ma non troppo · Machine-readable JSON-LD