thumb|The wick of a burning candle |400x400px thumb|A candle in a candle stick thumb|Tapers (long thin candles) in a church thumb|A memorial candle (yahrtzeit candle) A candle is an ignitable wick em
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 0x8c598c23a8fd179fdd71b3dcdd881855285dcb58fbfc98b3fe957fac47c1f2ab. 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/998f4efd-2e53-4a99-89a6-69d4b31beb44.json and https://artists.proofprofile.net/proofs/artist/998f4efd-2e53-4a99-89a6-69d4b31beb44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).