ISRC USAT20403904
Verified recording
USAT20403904 is “Quadrant 4” by Billy Cobham,
registered on the CopyrightChains blockchain with CopyrightID
0x4cd7ef524b49c6da87e4446a1b76f42a0c2289853544c6a0cdc25f26394ca23e and independently timestamped
in Bitcoin block 959159 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT20403904.
Recording identifiers
- ISRC
- USAT20403904
- Title
- Quadrant 4
- Artist
- Billy Cobham
- CopyrightID (CopyrightChains transaction hash)
0x4cd7ef524b49c6da87e4446a1b76f42a0c2289853544c6a0cdc25f26394ca23e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T17:48:40+00:00
- Bitcoin block
- 959159
- Canonical record hash
sha256:610bb1a9db7733065c2d1647ad7fbfe2915a10bf663081b629e79d364aba8d48- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT20403904
- Bitcoin block existence check
- https://blockstream.info/api/block/959159