ISRC USDY41989874
Verified recording
USDY41989874 is “Practical Vocal Method: Lesson V Half Tones or Semitones in E-Flat Major” by Nicola Vaccai,
registered on the CopyrightChains blockchain with CopyrightID
0x2295abd3e278e1c4dfa0aa648ea5d2b2929bba3ad0e931b2de5a3852d2f993ee 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/USDY41989874.
Recording identifiers
- ISRC
- USDY41989874
- Title
- Practical Vocal Method: Lesson V Half Tones or Semitones in E-Flat Major
- Artist
- Nicola Vaccai
- CopyrightID (CopyrightChains transaction hash)
0x2295abd3e278e1c4dfa0aa648ea5d2b2929bba3ad0e931b2de5a3852d2f993ee
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:d1a5d0dcd79caa581c34a800d4e2959ed964f5b761af69d41a79b1fab4c4706a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41989874
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Practical Vocal Method: Lesson V Half Tones or Semitones in E-Flat Major · Machine-readable JSON-LD