Mato may refer to: People Ana Mato (born 1959), Spanish politician Jakup Mato (1934–2005), Albanian publicist Mato Miloš (born 1993), Croatian footballer Mato Neretljak (born 1979), Croatian football
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df89a50aa1be39b6ee58d54ac5155d7a143fe0492298e475d2a72e3f50d362d. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d606506b-3db1-4ff7-9c58-ae90ae2227fd.json and https://artists.proofprofile.net/proofs/artist/d606506b-3db1-4ff7-9c58-ae90ae2227fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).