Brima is a village in western Ivory Coast. It is in the sub-prefecture of Biankouma, Biankouma Department, Tonkpi Region, Montagnes District. Brima was a commune until March 2012, when it became one
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 0xef31c516c6cabd13c3660b21f9da233e488a05ba31c3daf451d8f7a47377596e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/815f4dad-3eb1-4e2c-9fea-679db9ebad5d.json and https://artists.proofprofile.net/proofs/artist/815f4dad-3eb1-4e2c-9fea-679db9ebad5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).