ISRC USSM10311571
Verified recording
USSM10311571 is “Serenade No. 9 in D Major, K. 320 "Posthorn": IV. Rondeau - Allegro ma non troppo” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x56bb4803a091c232170efbd36f2664f2bc730cdcc2af6f2437208dd361684c30 and independently timestamped
in Bitcoin block 960360 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10311571.
Recording identifiers
- ISRC
- USSM10311571
- Title
- Serenade No. 9 in D Major, K. 320 "Posthorn": IV. Rondeau - Allegro ma non troppo
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x56bb4803a091c232170efbd36f2664f2bc730cdcc2af6f2437208dd361684c30
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T06:42:11+00:00
- Bitcoin block
- 960360
- Canonical record hash
sha256:2ff8185e3667533ca4ba6c50899347df81b94c072fdb994c2d59fe459c9e576b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10311571
- Bitcoin block existence check
- https://blockstream.info/api/block/960360
Full record
Track page: Serenade No. 9 in D Major, K. 320 "Posthorn": IV. Rondeau - Allegro ma non troppo · Machine-readable JSON-LD