ISRC USJ3V2422350
Verified recording
USJ3V2422350 is “Quartet for Focus” by Classical Study Music,
registered on the CopyrightChains blockchain with CopyrightID
0xa65fa2a31e78a796583d1f7cdca9c3232605ecf6d8b0d7fa2dbc27efeb3ad8c5 and independently timestamped
in Bitcoin block 960264 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V2422350.
Recording identifiers
- ISRC
- USJ3V2422350
- Title
- Quartet for Focus
- Artist
- Classical Study Music
- CopyrightID (CopyrightChains transaction hash)
0xa65fa2a31e78a796583d1f7cdca9c3232605ecf6d8b0d7fa2dbc27efeb3ad8c5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T14:36:16+00:00
- Bitcoin block
- 960264
- Canonical record hash
sha256:acb2a4be8b3712cc5f40ac0c498cd16ca64fcc815ad992a1fc2de56b90c72c80- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V2422350
- Bitcoin block existence check
- https://blockstream.info/api/block/960264