ISRC USPMZ2413611
Verified recording
USPMZ2413611 is “Preludes, Op. 28: No. 7 in A Major, B. 100” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x9d1797d6dd76e9ade3302b80d81ada9777e161e5c946df4d189364882401e1f7 and independently timestamped
in Bitcoin block 960321 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPMZ2413611.
Recording identifiers
- ISRC
- USPMZ2413611
- Title
- Preludes, Op. 28: No. 7 in A Major, B. 100
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x9d1797d6dd76e9ade3302b80d81ada9777e161e5c946df4d189364882401e1f7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T22:27:30+00:00
- Bitcoin block
- 960321
- Canonical record hash
sha256:c6b54d2cc3cfba802705177f4198da45d2b0ad37d091a2bee621430653f5aad0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPMZ2413611
- Bitcoin block existence check
- https://blockstream.info/api/block/960321
Full record
Track page: Preludes, Op. 28: No. 7 in A Major, B. 100 · Machine-readable JSON-LD