ISRC USX761929808
Verified recording
USX761929808 is “String Quartet No.2 in D Major” by Alexander Borodin,
registered on the CopyrightChains blockchain with CopyrightID
0x28f0f819b691848a910b9744db25d2691301fdff1c6aad2432cb52b42217579d 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/USX761929808.
Recording identifiers
- ISRC
- USX761929808
- Title
- String Quartet No.2 in D Major
- Artist
- Alexander Borodin
- CopyrightID (CopyrightChains transaction hash)
0x28f0f819b691848a910b9744db25d2691301fdff1c6aad2432cb52b42217579d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:820346a5c30e5793c41ddcca0db22643204621844864f5f9406c0f7f55ce4f9c- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929808
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: String Quartet No.2 in D Major · Machine-readable JSON-LD