ISRC USB8U1612658
Verified recording
USB8U1612658 is “Serenade No. 7 in D Major, K. 250 "Haffner": I. Allegro maestoso” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x27499546daa783511f6e0aefae72412e3d3dc3a7a6496cd500495a465cc7debd and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1612658.
Recording identifiers
- ISRC
- USB8U1612658
- Title
- Serenade No. 7 in D Major, K. 250 "Haffner": I. Allegro maestoso
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x27499546daa783511f6e0aefae72412e3d3dc3a7a6496cd500495a465cc7debd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:b7168f4753b387e175674f9b69dc7dc58de10d4b20eb8070e9ad928c087ebb2b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1612658
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Serenade No. 7 in D Major, K. 250 "Haffner": I. Allegro maestoso · Machine-readable JSON-LD