ISRC USDY41983720
Verified recording
USDY41983720 is “Practical Vocal Method: Lesson II Intervals of the Fourth in B-Flat Major” by Nicola Vaccai,
registered on the CopyrightChains blockchain with CopyrightID
0xe27d53981873cd5bc9785fd56405b31de8cfe7cea3e0c460bcee52829360dd10 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/USDY41983720.
Recording identifiers
- ISRC
- USDY41983720
- Title
- Practical Vocal Method: Lesson II Intervals of the Fourth in B-Flat Major
- Artist
- Nicola Vaccai
- CopyrightID (CopyrightChains transaction hash)
0xe27d53981873cd5bc9785fd56405b31de8cfe7cea3e0c460bcee52829360dd10
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:5837b50dfe79e4d62734b2e0c605323d77f2fb77daed16348df62c81c42375c4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41983720
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Practical Vocal Method: Lesson II Intervals of the Fourth in B-Flat Major · Machine-readable JSON-LD