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 0x36be95396199fc12551d33dc0f6f83a56ca1b5e290fa8bfa1fa914ce73011646. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7dc1b5d-f831-482c-bf9f-9bfde1e6456d.json and https://artists.proofprofile.net/proofs/artist/c7dc1b5d-f831-482c-bf9f-9bfde1e6456d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Prece Ao Minuano - Edson Otto Interpreta Telmo de Lima Freitas