ISRC USCA29100228
Verified recording
USCA29100228 is “Perfidia” by Nat King Cole,
registered on the CopyrightChains blockchain with CopyrightID
0xf4628af24da96f9de7d9aaccd6b710bc6adab2b1af8eb36cf6223a4e3c94a3e6 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA29100228.
Recording identifiers
- ISRC
- USCA29100228
- Title
- Perfidia
- Artist
- Nat King Cole
- CopyrightID (CopyrightChains transaction hash)
0xf4628af24da96f9de7d9aaccd6b710bc6adab2b1af8eb36cf6223a4e3c94a3e6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:ae1fb57a652ae1fad21aebfc428ecec2d646af17ce605569a1e61a6af3102946- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA29100228
- Bitcoin block existence check
- https://blockstream.info/api/block/956304