ISRC USBC19901781
Verified recording
USBC19901781 is “24 Preludes, Op. 28: Prelude No. 7 in A Major” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x77af489612df94f3681e7886329559933a9b24d8e713f324943bb2e810c90347 and independently timestamped
in Bitcoin block 960121 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19901781.
Recording identifiers
- ISRC
- USBC19901781
- Title
- 24 Preludes, Op. 28: Prelude No. 7 in A Major
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x77af489612df94f3681e7886329559933a9b24d8e713f324943bb2e810c90347
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T15:22:21+00:00
- Bitcoin block
- 960121
- Canonical record hash
sha256:003457a6fd2bcfe42798989b01e93f24aad6ee4d1e2aae40c8a34af2f463c57e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19901781
- Bitcoin block existence check
- https://blockstream.info/api/block/960121
Full record
Track page: 24 Preludes, Op. 28: Prelude No. 7 in A Major · Machine-readable JSON-LD