ISRC USDY41989827
Verified recording
USDY41989827 is “Practical Vocal Method: Lesson IV Intervals of the Seventh in C Major” by Nicola Vaccai,
registered on the CopyrightChains blockchain with CopyrightID
0x0d83b11b6dc5e467c67789069b190ad8da3c5190fb3b7d43e60a5880beeb99c0 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/USDY41989827.
Recording identifiers
- ISRC
- USDY41989827
- Title
- Practical Vocal Method: Lesson IV Intervals of the Seventh in C Major
- Artist
- Nicola Vaccai
- CopyrightID (CopyrightChains transaction hash)
0x0d83b11b6dc5e467c67789069b190ad8da3c5190fb3b7d43e60a5880beeb99c0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:6f91cabc8cc5d7ab1fd7283d263c357a7e7b57f5ce303e77887e785c3c16565f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41989827
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Practical Vocal Method: Lesson IV Intervals of the Seventh in C Major · Machine-readable JSON-LD