ISRC USDY41983724
Verified recording
USDY41983724 is “Practical Vocal Method: Lesson IV Intervals of the Seventh in D Major” by Nicola Vaccai,
registered on the CopyrightChains blockchain with CopyrightID
0xcca7d003dc35b3a20a7cd1e95fac45f3954168c860433cf72b66b5ee7b350928 and independently timestamped
in Bitcoin block 960121 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41983724.
Recording identifiers
- ISRC
- USDY41983724
- Title
- Practical Vocal Method: Lesson IV Intervals of the Seventh in D Major
- Artist
- Nicola Vaccai
- CopyrightID (CopyrightChains transaction hash)
0xcca7d003dc35b3a20a7cd1e95fac45f3954168c860433cf72b66b5ee7b350928
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T15:22:21+00:00
- Bitcoin block
- 960121
- Canonical record hash
sha256:1dc797f1976f7b621300748fca000e170654d8dc56127ebe1b41ed098a208362- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41983724
- Bitcoin block existence check
- https://blockstream.info/api/block/960121
Full record
Track page: Practical Vocal Method: Lesson IV Intervals of the Seventh in D Major · Machine-readable JSON-LD