ISRC USBC19800525
Verified recording
USBC19800525 is “Piano Sonata No. 3 in B Minor, Op. 58: III. Largo” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x86f2f74085c6ddf117d1d89f4395bc9cb7ce6a9d90485ed51e61370b39d75a89 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/USBC19800525.
Recording identifiers
- ISRC
- USBC19800525
- Title
- Piano Sonata No. 3 in B Minor, Op. 58: III. Largo
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x86f2f74085c6ddf117d1d89f4395bc9cb7ce6a9d90485ed51e61370b39d75a89
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:84689814fb8e4ba1e1d1f369afb4a6f3444974195485235c14426b283701f5c8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19800525
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata No. 3 in B Minor, Op. 58: III. Largo · Machine-readable JSON-LD