Osinachi Kalu Okoro Egbu , known professionally as Sinach, (born 30 March 1972) is a Nigerian singer, songwriter and senior worship leader, serving in this capacity for over 30 years. She is the first
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 0xe3f061b74d18f863069e0f194f2430d2eed3f031c8dc7cf55fe64b29fa862c38. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c037aeb-eff0-4655-b262-a1c61cff5636.json and https://artists.proofprofile.net/proofs/artist/5c037aeb-eff0-4655-b262-a1c61cff5636.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).