Brenda Kim Martin is a Canadian citizen from Trenton, Ontario, whose arrest and conviction in Mexico was subject of much publicity in Canada. Martin began living in Mexico in 1998, working in the cul
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 0x9784338293e3652d07094510156925b971e7bb7960579a4b57f7bbf4c70a4450. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fe8255f-19bd-4102-8cab-48d3f88fa6bf.json and https://artists.proofprofile.net/proofs/artist/9fe8255f-19bd-4102-8cab-48d3f88fa6bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).