ISRC USBC16400003
Verified recording
USBC16400003 is “Polonaises, Op. 40: No. 1 in A Major "Military"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x87fef6b27ce5c4ea52e4bf77d593e34588df298f9676c2e627bcf5573eef13dc 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/USBC16400003.
Recording identifiers
- ISRC
- USBC16400003
- Title
- Polonaises, Op. 40: No. 1 in A Major "Military"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x87fef6b27ce5c4ea52e4bf77d593e34588df298f9676c2e627bcf5573eef13dc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:cd2547ea843bab099e68568509279668c03e0a59140ac4754195046f09662901- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16400003
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Polonaises, Op. 40: No. 1 in A Major "Military" · Machine-readable JSON-LD