Sudan Ameer Williams (born November 16, 1989), better known by his stage name Iamsu! (stylized as IamSu! or IAMSU!), is an American rapper and record producer from Richmond, California. He is the co-f
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28032b0ead812f7caa0a53a2515f6419be3cbf4bcdc6b7beecb4219710277c0. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80943e79-a61c-4802-947f-f3ee82961389.json and https://artists.proofprofile.net/proofs/artist/80943e79-a61c-4802-947f-f3ee82961389.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).