ISRC USDY41989864
Verified recording
USDY41989864 is “Practical Vocal Method: Lesson II Intervals of the Fourth in G Major” by Nicola Vaccai,
registered on the CopyrightChains blockchain with CopyrightID
0xcf7c7896b344b989347338410e1a8c9a2413542281f1e509d6f415d34a5a08fd 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/USDY41989864.
Recording identifiers
- ISRC
- USDY41989864
- Title
- Practical Vocal Method: Lesson II Intervals of the Fourth in G Major
- Artist
- Nicola Vaccai
- CopyrightID (CopyrightChains transaction hash)
0xcf7c7896b344b989347338410e1a8c9a2413542281f1e509d6f415d34a5a08fd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:a3467f2087ca6eb40d5f8f6bb8931613a093046179a66ad83d65246b8e8e3c8b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41989864
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Practical Vocal Method: Lesson II Intervals of the Fourth in G Major · Machine-readable JSON-LD