Michael Tyrrell (1946 – 30 May 2013) was an Antigua-born drug trafficker who headed a drug ring along with his Common Law wife Julie Paterson, known as the "Cocaine Queen". In 1999, he and his "wife"
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 0x20cacd9fdc20d86752b3e4f23ce30680d5c42953eb3c800ec3416b0643faabac. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04b38db6-42cf-44dc-b5d8-30aee463f8eb.json and https://artists.proofprofile.net/proofs/artist/04b38db6-42cf-44dc-b5d8-30aee463f8eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).