Dyce () is a suburb town of Aberdeen, Scotland, situated on the River Don about northwest of the city centre. It is best known as the location of Aberdeen Airport. History thumb|left|285px|Old Dyc
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 0xab5178a33d27adfee1061fe31bea84d023c14f0c79a5658a3bc32d992561cf3a. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e82ff532-f23f-4950-b29e-c230ce421401.json and https://artists.proofprofile.net/proofs/artist/e82ff532-f23f-4950-b29e-c230ce421401.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).