Rimmel (commonly known as Rimmel London) is a British multinational cosmetics brand, now owned by parent company Coty. The House of Rimmel was founded by French-born British cosmetics entrepreneur Eug
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 0x028b1b6e2a61b74b145776c9a716b1fb030dfab86f876864d4c3281fc43438a5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/506fd992-27f1-404f-9926-d79e192109a1.json and https://artists.proofprofile.net/proofs/artist/506fd992-27f1-404f-9926-d79e192109a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).