Mati may refer to: Geography Mati, Davao Oriental, Philippines, a city Roman Catholic Diocese of Mati Mati Protected Landscape, a protected area in Davao Oriental, Philippines Mati Airport, Davao Ori
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 0x38a5926dfef436c4065f437e8b4d264e61a32335a5d743ae30b20be110951b11. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b8ef6fb-0e35-463c-9dad-27978c77414d.json and https://artists.proofprofile.net/proofs/artist/2b8ef6fb-0e35-463c-9dad-27978c77414d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).