ISRC FRZ148901120
Verified recording
FRZ148901120 is “Six four-handed pieces, Op. 11: V. Romance” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0xbf166b318940388ca68c4244e88cd55f35ccd861e31614c1792f2caebea0dd9f and independently timestamped
in Bitcoin block 960362 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ148901120.
Recording identifiers
- ISRC
- FRZ148901120
- Title
- Six four-handed pieces, Op. 11: V. Romance
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0xbf166b318940388ca68c4244e88cd55f35ccd861e31614c1792f2caebea0dd9f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T06:58:00+00:00
- Bitcoin block
- 960362
- Canonical record hash
sha256:6ec26b4e6f593ea4f98c4e647a6d8f35b06b7f99aad8a57a15a8d30511d70ed3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ148901120
- Bitcoin block existence check
- https://blockstream.info/api/block/960362
Full record
Track page: Six four-handed pieces, Op. 11: V. Romance · Machine-readable JSON-LD