ISRC DEN961530119
Verified recording
DEN961530119 is “Variations on a Theme of Chopin, Op. 22: Variation No. 22 Maestoso – Tempo I” by Sergei Rachmaninoff,
registered on the CopyrightChains blockchain with CopyrightID
0x402294f2c4a303f494d9e8fffe32a867230f40e543a2cccd0b0a018a002fa1c4 and independently timestamped
in Bitcoin block 960254 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961530119.
Recording identifiers
- ISRC
- DEN961530119
- Title
- Variations on a Theme of Chopin, Op. 22: Variation No. 22 Maestoso – Tempo I
- Artist
- Sergei Rachmaninoff
- CopyrightID (CopyrightChains transaction hash)
0x402294f2c4a303f494d9e8fffe32a867230f40e543a2cccd0b0a018a002fa1c4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:06:10+00:00
- Bitcoin block
- 960254
- Canonical record hash
sha256:fc838d36aeb32d689f234f3c5ee522673c771f0b9b6433652fd08e291d9bfb7e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961530119
- Bitcoin block existence check
- https://blockstream.info/api/block/960254
Full record
Track page: Variations on a Theme of Chopin, Op. 22: Variation No. 22 Maestoso – Tempo I · Machine-readable JSON-LD