thumb|upright=1.25|Swan-necked copper pot stills in the Glenfiddich distillery 250px|thumbnail|right|A still at Mackmyra Whisky Distillery thumb|upright|Column still from Kilbeggan Distillery in Count
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 0xc3d491394a9c9ca47355a8fdf4c81a6bd3e7c6f2b44e878a13561ee525280159. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/983c3999-c6d9-4b01-b938-1f60805ff2be.json and https://artists.proofprofile.net/proofs/artist/983c3999-c6d9-4b01-b938-1f60805ff2be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).