Marcus Taylor (born November 25, 1981) is an American former professional basketball player. He was a Naismith All-American, McDonald's All-American, two-time Parade All-American and USA Today 1st-te
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 0x4ac7d6664567948b3d256bce1a46f2b8f8d0b8bd79df102084800e10a0594a16. Chain 2 (Bitcoin): anchored in block 954027 (2026-06-17T00:55:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38ff051d-10e8-430b-8f7a-6471a1beadea.json and https://artists.proofprofile.net/proofs/artist/38ff051d-10e8-430b-8f7a-6471a1beadea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).