ISRC USGZ21561589
Verified recording
USGZ21561589 is “The Nutcracker (suite), Op. 71a: II. March” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0x0d70f5abc8e00f8b4869571c5d8ba9dd121f7cc978973788c46636dd7119f2e8 and independently timestamped
in Bitcoin block 960344 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGZ21561589.
Recording identifiers
- ISRC
- USGZ21561589
- Title
- The Nutcracker (suite), Op. 71a: II. March
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0x0d70f5abc8e00f8b4869571c5d8ba9dd121f7cc978973788c46636dd7119f2e8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T04:14:58+00:00
- Bitcoin block
- 960344
- Canonical record hash
sha256:6a7d034fd358465eafed06b82cfa3a78ed036aac2f491581f86c9bf2ba0b4bc5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGZ21561589
- Bitcoin block existence check
- https://blockstream.info/api/block/960344
Full record
Track page: The Nutcracker (suite), Op. 71a: II. March · Machine-readable JSON-LD