ISRC USB8U1611873
Verified recording
USB8U1611873 is “Rondo in C Major, K. 373” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x86622333aab05ea6631e912158bd06efbeba2c472469e94eefea1099fb20324c and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1611873.
Recording identifiers
- ISRC
- USB8U1611873
- Title
- Rondo in C Major, K. 373
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x86622333aab05ea6631e912158bd06efbeba2c472469e94eefea1099fb20324c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:f9a9f1a67ffda193af7447a9c9006403a5ca46a6287a372ca3218d8252a7e2e0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1611873
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Rondo in C Major, K. 373 · Machine-readable JSON-LD