thumb|300px|The Kingdom of Gardman-Parisos (yellow) in 1017 when it was acquired by the Kingdom of Lori (red). Gardman (), also known as Gardmank' or Gardmanadzor, was one of the eight cantons of the
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 0x264c428ef3d194a91d5e6733a3e1673e30cc5dcf767d57db4be5f41e047894d4. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/529198c7-7ea9-49cb-8f97-12adc9eca901.json and https://artists.proofprofile.net/proofs/artist/529198c7-7ea9-49cb-8f97-12adc9eca901.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).