ISRC USSM11103449
Verified recording
USSM11103449 is “String Quartet No. 21 in D Major, K. 575 "Prussian No. 1": III. Menuetto. Allegretto” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x29448ec2b12ec5927a882465ba37a4da9eecd58a2bc35c1813727c35d1ac3ae5 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11103449.
Recording identifiers
- ISRC
- USSM11103449
- Title
- String Quartet No. 21 in D Major, K. 575 "Prussian No. 1": III. Menuetto. Allegretto
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x29448ec2b12ec5927a882465ba37a4da9eecd58a2bc35c1813727c35d1ac3ae5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:93e5d59e11739b4bc55876f11ed1cfd5548200878a78324c2f09c6c0f092cbfa- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11103449
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: String Quartet No. 21 in D Major, K. 575 "Prussian No. 1": III. Menuetto. Allegretto · Machine-readable JSON-LD