Otis Whitfield Williams Jr. (born November 23, 1981), better known by his stage name OJ da Juiceman, is an American rapper. He is best known for his 2008 single "Make tha Trap Say Aye" (featuring Gucc
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62c56e819c970765c20c930c0d98a475ed8cfeb71f427a0db3d2761a2975bb3. Chain 2 (Bitcoin): anchored in block 953991 (2026-06-16T18:47:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e55768b-5b30-4384-ae4e-40058b49689c.json and https://artists.proofprofile.net/proofs/artist/2e55768b-5b30-4384-ae4e-40058b49689c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.