ISRC USDY41989873
Verified recording
USDY41989873 is “Practical Vocal Method: Intervals of the Octave in A Major” by Nicola Vaccai,
registered on the CopyrightChains blockchain with CopyrightID
0xb3cc8c67fbe1b6bdd57db3f2d2bafb838d43256a20061c793cc22eb42ec37185 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41989873.
Recording identifiers
- ISRC
- USDY41989873
- Title
- Practical Vocal Method: Intervals of the Octave in A Major
- Artist
- Nicola Vaccai
- CopyrightID (CopyrightChains transaction hash)
0xb3cc8c67fbe1b6bdd57db3f2d2bafb838d43256a20061c793cc22eb42ec37185
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:5a11dd93d5239a6dca3e1a0191ed515a0b4b3152058ceb515d9675fde094dbc5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41989873
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Practical Vocal Method: Intervals of the Octave in A Major · Machine-readable JSON-LD