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 0x426f52646040f0da5a0123b84ec70002e31944c6c8d5a566b9901a05e474111c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dec388b6-1d62-4e3d-abcf-a5fc6eb4a4bd.json and https://artists.proofprofile.net/proofs/artist/dec388b6-1d62-4e3d-abcf-a5fc6eb4a4bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mtg - Em BH o pique é esse VS Pique da Arábia Saudita