ISRC USUM71901925
Verified recording
USUM71901925 is “Not Sure” by Lil West,
registered on the CopyrightChains blockchain with CopyrightID
0x0805c04ec439e3800e2248264d9ca620768ecd5cc7afe3494d4dc45cb48ad5c3 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71901925.
Recording identifiers
- ISRC
- USUM71901925
- Title
- Not Sure
- Artist
- Lil West
- CopyrightID (CopyrightChains transaction hash)
0x0805c04ec439e3800e2248264d9ca620768ecd5cc7afe3494d4dc45cb48ad5c3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:84b9e38d833b3010883a1b6fa43aa49f52a511b30fd4f1a4c070f6f33b7ba8a1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71901925
- Bitcoin block existence check
- https://blockstream.info/api/block/953520