ARI may refer to: Organizations Acoustics Research Institute of the Austrian Academy of Sciences Civic Coalition ARI, a political party in Argentina Aer Rianta International, an Irish state owned glo
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 0x873266933ddddb615d024996746e97a2a93a3cc89e3df7cc1c2fa14a74e28e03. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce19c3bc-9c69-4e00-bec4-6d4951bc5512.json and https://artists.proofprofile.net/proofs/artist/ce19c3bc-9c69-4e00-bec4-6d4951bc5512.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).