Taylor Williams, better known as Cuban Doll, Cuban Da Savage or simply Cuban, is an American rapper and social media influencer. Early life Williams was born on May 12, 1998, in Dallas, Texas, wher
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 0xd5c947dd462e1cb20567ef0b8cecfac476f175bd30d4db308bf99fbbf65eb36f. 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/8e4b01af-b51c-4ba6-9f47-32ab583f117c.json and https://artists.proofprofile.net/proofs/artist/8e4b01af-b51c-4ba6-9f47-32ab583f117c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).