ISRC USDY41989871
Verified recording
USDY41989871 is “Practical Vocal Method: Lesson IV Intervals of the Seventh in B-Flat Major” by Nicola Vaccai,
registered on the CopyrightChains blockchain with CopyrightID
0x9064b8f87e6428e6b6a93bc94d011fe75029564b6cb35b4a5ba51813645e92e5 and independently timestamped
in Bitcoin block 960500 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41989871.
Recording identifiers
- ISRC
- USDY41989871
- Title
- Practical Vocal Method: Lesson IV Intervals of the Seventh in B-Flat Major
- Artist
- Nicola Vaccai
- CopyrightID (CopyrightChains transaction hash)
0x9064b8f87e6428e6b6a93bc94d011fe75029564b6cb35b4a5ba51813645e92e5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T03:13:03+00:00
- Bitcoin block
- 960500
- Canonical record hash
sha256:13f885c857a120d6d7b53306efd3a330b83726624d3f4168bb65d77e02afaab7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41989871
- Bitcoin block existence check
- https://blockstream.info/api/block/960500
Full record
Track page: Practical Vocal Method: Lesson IV Intervals of the Seventh in B-Flat Major · Machine-readable JSON-LD