ISRC USDY41989836
Verified recording
USDY41989836 is “Practical Vocal Method: Lesson IX the Mordent in A Major” by Nicola Vaccai,
registered on the CopyrightChains blockchain with CopyrightID
0x1ca04fb91f776c683f1327880a01cf3a0c2f0373a7e24ee1e8fea2dcf4977dad 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/USDY41989836.
Recording identifiers
- ISRC
- USDY41989836
- Title
- Practical Vocal Method: Lesson IX the Mordent in A Major
- Artist
- Nicola Vaccai
- CopyrightID (CopyrightChains transaction hash)
0x1ca04fb91f776c683f1327880a01cf3a0c2f0373a7e24ee1e8fea2dcf4977dad
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:a24eda8da1364d130a9fdfe2e7fa1b50c03bf76b6c334dcb3fb643830e5f484d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41989836
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: Practical Vocal Method: Lesson IX the Mordent in A Major · Machine-readable JSON-LD