ISRC USDY41989828
Verified recording
USDY41989828 is “Practical Vocal Method: Intervals of the Octave in C Major” by Nicola Vaccai,
registered on the CopyrightChains blockchain with CopyrightID
0x8fe698e35765c9c36e3fa7f86947c3d6b4cf61d3370345acabe85bdfb6538c35 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/USDY41989828.
Recording identifiers
- ISRC
- USDY41989828
- Title
- Practical Vocal Method: Intervals of the Octave in C Major
- Artist
- Nicola Vaccai
- CopyrightID (CopyrightChains transaction hash)
0x8fe698e35765c9c36e3fa7f86947c3d6b4cf61d3370345acabe85bdfb6538c35
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:2647e0f5e9eb3835c8a1895a9d05fbbf348516f4c2ee0d1d38a05bec14ab915c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41989828
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Practical Vocal Method: Intervals of the Octave in C Major · Machine-readable JSON-LD