ISRC US7851400167
Verified recording
US7851400167 is “The Nutcracker, Op. 71: Overture” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0x71bad4327cab38681ec2287f4a2ed90f78b14bf850d9f4a348e98edd43d17f1b and independently timestamped
in Bitcoin block 960309 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7851400167.
Recording identifiers
- ISRC
- US7851400167
- Title
- The Nutcracker, Op. 71: Overture
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0x71bad4327cab38681ec2287f4a2ed90f78b14bf850d9f4a348e98edd43d17f1b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T20:35:49+00:00
- Bitcoin block
- 960309
- Canonical record hash
sha256:aa50bbdbcd145da7c237c9e78e183588df6fb567b159cf9195d891a7bc13a536- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7851400167
- Bitcoin block existence check
- https://blockstream.info/api/block/960309
Full record
Track page: The Nutcracker, Op. 71: Overture · Machine-readable JSON-LD