thumb|Parisian costumes: The dandies of Paris in 1831. A dandy is a man who places particular importance upon physical appearance and personal grooming, refined language and leisurely hobbies. A dand
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 0xc8c14107bb467e384f509c67d68f6e2b7d752ea9c20ecae78d2dbb813ff19e49. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee12e0da-a3f0-4a16-9f0f-41bb083832d6.json and https://artists.proofprofile.net/proofs/artist/ee12e0da-a3f0-4a16-9f0f-41bb083832d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).