ISRC DEF058731132
Verified recording
DEF058731132 is “Eugene Onegin, Op. 24, TH 5 / Act III: (Scene 2) Closing Scene. "O! Kak mnye tyazhelo!"” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0xe5bbfa14a9d0c3fdfe96a59b7c1ede467a78dcd01e41ccfc734f0e607d409274 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058731132.
Recording identifiers
- ISRC
- DEF058731132
- Title
- Eugene Onegin, Op. 24, TH 5 / Act III: (Scene 2) Closing Scene. "O! Kak mnye tyazhelo!"
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0xe5bbfa14a9d0c3fdfe96a59b7c1ede467a78dcd01e41ccfc734f0e607d409274
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:8f4bb4f76a242cd94e315cf11a11e98cec88cec3e2a6c28dd40d46381454d41f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058731132
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Eugene Onegin, Op. 24, TH 5 / Act III: (Scene 2) Closing Scene. "O! Kak mnye tyazhelo!" · Machine-readable JSON-LD