thumb|India has the world's largest annual emigration. Pictured at Ricoh Coliseum, in Toronto, Canada, on April 15, 2015 thumb|The Mexican diaspora is the world's second-largest; pictured is Mexican d
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 0x71f960c14006e09aa9748a8ac0a3775d6be5cef329e7495a383e91e20ad72019. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/327c353d-c27e-4e46-8fdb-d01c20af7aef.json and https://artists.proofprofile.net/proofs/artist/327c353d-c27e-4e46-8fdb-d01c20af7aef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).