ISRC USB8U1012874
Verified recording
USB8U1012874 is “Violin Concerto No. 4 in D Major, K. 218: II. Andante cantabile” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x87e1dc32b1d8a6bd69c453f8225cd413d0669ea98e5f462b76b89f72ef9a31fd and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1012874.
Recording identifiers
- ISRC
- USB8U1012874
- Title
- Violin Concerto No. 4 in D Major, K. 218: II. Andante cantabile
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x87e1dc32b1d8a6bd69c453f8225cd413d0669ea98e5f462b76b89f72ef9a31fd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:128d97643a9fc6c10e488707135c0abe734941ea4ce55183e405b8ee33a0c874- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1012874
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: Violin Concerto No. 4 in D Major, K. 218: II. Andante cantabile · Machine-readable JSON-LD