Makak is a town in central Cameroon, in Central province. Transport It is served by a station on the national railway system. Education Evangelical College of Libamba (1945) See also Commun
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 0xbfe25d2b9d5583d3fd79144a1179561323db0b3026ad4e3bc6dc5718ddb82f85. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e40fd7bc-9879-43e4-8013-57a1cab50b9b.json and https://artists.proofprofile.net/proofs/artist/e40fd7bc-9879-43e4-8013-57a1cab50b9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).