ISRC USFI87500195
Verified recording
USFI87500195 is “Mack The Knife” by Oscar Peterson,
registered on the CopyrightChains blockchain with CopyrightID
0xc9c5d4a4dffa78e9704a944903d934c2fa99621a756a351ae91dd8b4be3de110 and independently timestamped
in Bitcoin block 960254 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFI87500195.
Recording identifiers
- ISRC
- USFI87500195
- Title
- Mack The Knife
- Artist
- Oscar Peterson
- CopyrightID (CopyrightChains transaction hash)
0xc9c5d4a4dffa78e9704a944903d934c2fa99621a756a351ae91dd8b4be3de110
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:06:10+00:00
- Bitcoin block
- 960254
- Canonical record hash
sha256:7ea4cefdcda1c344934cbb3026bdd8e23d3f579620e1492d7a8357ca69114236- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFI87500195
- Bitcoin block existence check
- https://blockstream.info/api/block/960254