ISRC USBC19300511
Verified recording
USBC19300511 is “Mazurka No. 4 in A Minor, Op. 17” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x10c3e38617cf4a891447d5d55d6802af02bfdb881610dd68cf39c16d80ab2e38 and independently timestamped
in Bitcoin block 959128 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19300511.
Recording identifiers
- ISRC
- USBC19300511
- Title
- Mazurka No. 4 in A Minor, Op. 17
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x10c3e38617cf4a891447d5d55d6802af02bfdb881610dd68cf39c16d80ab2e38
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T12:33:25+00:00
- Bitcoin block
- 959128
- Canonical record hash
sha256:7feb58a126616de58d96018b78d9667b1c62703d7e221a36e96344bbecd74387- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19300511
- Bitcoin block existence check
- https://blockstream.info/api/block/959128
Full record
Track page: Mazurka No. 4 in A Minor, Op. 17 · Machine-readable JSON-LD