Yacub Addy (15 April 1931 – 18 December 2014) was a Ghanaian traditional drummer, composer, choreographer and educator who collaborated with many musicians in various genres, including Wynton Marsalis
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 0x2453058e992159ff7b72f3ba91cc50249d56b30e097acb6ca162362b0d831668. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43ae7b9b-7048-4bca-958a-32d5add5e582.json and https://artists.proofprofile.net/proofs/artist/43ae7b9b-7048-4bca-958a-32d5add5e582.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).