Ghana, officially the Republic of Ghana, is a country in West Africa. It is situated with the Gulf of Guinea and the Atlantic Ocean to the south, and shares borders with Côte d'Ivoire to the west, Bur
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1891d680c6c7b3c1b76f380b8690607b35cb7455839604d3daa3a7b90fb6f3. 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/587e250a-e5fd-45e7-8513-7b7c089ed9b7.json and https://artists.proofprofile.net/proofs/artist/587e250a-e5fd-45e7-8513-7b7c089ed9b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).