thumb|200px| is the French word for the color of natural wool (freshly shorn example at the Royal Winter Fair). Beige ( ) is variously described as a pale sandy fawn color,Oxford English Dictionary a
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 0x9165e454d2af50060710b02c57a85bfa005f9c69668553d47d7cc4afc0407d56. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40f7b708-b5f0-4b95-85cd-b94551ed0746.json and https://artists.proofprofile.net/proofs/artist/40f7b708-b5f0-4b95-85cd-b94551ed0746.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).