Matías is the Portuguese version of Matthias. Matías is very popular in Latin America especially in Argentina. In German-speaking Europe it is most often written as Matthias. It appears in this form i
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 0xa6af4c90eae63e693716aae469ae3edb61b1e84bfb42b1fd7e025078b0066801. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5b6a4de-1df1-4807-b42c-2bd761fa6b19.json and https://artists.proofprofile.net/proofs/artist/e5b6a4de-1df1-4807-b42c-2bd761fa6b19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).