ISRC USSM17800602
Verified recording
USSM17800602 is “String Quartet No. 3 in C Major, Hob. III:77 "Emperor": II. Poco Adagio - Cantabile” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0xfcc7ae1699ca09bdc3bd31324f6bce31bc7d031639991e450892dffe05aff07d and independently timestamped
in Bitcoin block 960403 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800602.
Recording identifiers
- ISRC
- USSM17800602
- Title
- String Quartet No. 3 in C Major, Hob. III:77 "Emperor": II. Poco Adagio - Cantabile
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0xfcc7ae1699ca09bdc3bd31324f6bce31bc7d031639991e450892dffe05aff07d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:04:34+00:00
- Bitcoin block
- 960403
- Canonical record hash
sha256:cb4efd5e0bb99a731283f27a3e566972cc6ea6151adccfbcf8c719619d631941- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800602
- Bitcoin block existence check
- https://blockstream.info/api/block/960403
Full record
Track page: String Quartet No. 3 in C Major, Hob. III:77 "Emperor": II. Poco Adagio - Cantabile · Machine-readable JSON-LD