ISRC FRZ148901090
Verified recording
FRZ148901090 is “Six four-handed pieces, Op. 11: II. Scherzo” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0xc98f4d37699cde1229561b51273ccdd026ef820cdf9d3abd60a73e0d7a8c53a5 and independently timestamped
in Bitcoin block 960317 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ148901090.
Recording identifiers
- ISRC
- FRZ148901090
- Title
- Six four-handed pieces, Op. 11: II. Scherzo
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0xc98f4d37699cde1229561b51273ccdd026ef820cdf9d3abd60a73e0d7a8c53a5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T21:35:24+00:00
- Bitcoin block
- 960317
- Canonical record hash
sha256:2883ddc19dbe6dc9daa4cc8b9d7d354a91b1fc01bd241b70a5db3c34a5b3b0e3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ148901090
- Bitcoin block existence check
- https://blockstream.info/api/block/960317
Full record
Track page: Six four-handed pieces, Op. 11: II. Scherzo · Machine-readable JSON-LD