ISRC USSM11403430
Verified recording
USSM11403430 is “Klavierstück in F Major, K. 33b” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xd903c9f076eeba7b15c313ffc4de4549d244c5626096f7046f76c3b1f336f42e and independently timestamped
in Bitcoin block 960291 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11403430.
Recording identifiers
- ISRC
- USSM11403430
- Title
- Klavierstück in F Major, K. 33b
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xd903c9f076eeba7b15c313ffc4de4549d244c5626096f7046f76c3b1f336f42e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T18:23:33+00:00
- Bitcoin block
- 960291
- Canonical record hash
sha256:b52bf9f6dfa37c9653f30e77a17dc3caffce387c3b62047c18acdfeeb7c6ee25- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11403430
- Bitcoin block existence check
- https://blockstream.info/api/block/960291
Full record
Track page: Klavierstück in F Major, K. 33b · Machine-readable JSON-LD