ISRC UK2Y21800859
Verified recording
UK2Y21800859 is “The Queen of Spades, Op. 68, Act I Scene 2: Duet "Uzh vecher"” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0x0c05cb1f680fd9c4cee6eaa282cf1d1acdaa2e5dc5cebf6a0e14ca12d9e8e85f and independently timestamped
in Bitcoin block 957050 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21800859.
Recording identifiers
- ISRC
- UK2Y21800859
- Title
- The Queen of Spades, Op. 68, Act I Scene 2: Duet "Uzh vecher"
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0x0c05cb1f680fd9c4cee6eaa282cf1d1acdaa2e5dc5cebf6a0e14ca12d9e8e85f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T14:41:13+00:00
- Bitcoin block
- 957050
- Canonical record hash
sha256:8b04325de794cb6dacf06c7f34af5163e305c599e32e6a169a112c7d2437bc81- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21800859
- Bitcoin block existence check
- https://blockstream.info/api/block/957050
Full record
Track page: The Queen of Spades, Op. 68, Act I Scene 2: Duet "Uzh vecher" · Machine-readable JSON-LD