ISRC USRDG0112451
Verified recording
USRDG0112451 is “Piano Sonata No. 11 in A Major, K. 331: III. Rondo Alla Turca” by Oldřich Vlček,
registered on the CopyrightChains blockchain with CopyrightID
0xe0d15fb8162a08bd4bf7f36eda10b349912ae73740b2835ec3f248cee3160e1e 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/USRDG0112451.
Recording identifiers
- ISRC
- USRDG0112451
- Title
- Piano Sonata No. 11 in A Major, K. 331: III. Rondo Alla Turca
- Artist
- Oldřich Vlček
- CopyrightID (CopyrightChains transaction hash)
0xe0d15fb8162a08bd4bf7f36eda10b349912ae73740b2835ec3f248cee3160e1e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:9b3a13f830c14f0f2bd5b795878455ad01da4b6f1a45e79abe5a8619e01d7d99- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRDG0112451
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Piano Sonata No. 11 in A Major, K. 331: III. Rondo Alla Turca · Machine-readable JSON-LD