The Congos are a Jamaican reggae vocal group from Jamaica which formed as the duo "Ashanti" Roy Johnson (tenor) (b. Roydel Johnson, 1947, Hanover, Jamaica) and Cedric Myton (falsetto) (b. 1947, Saint
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 0xc229c4fb48c4d99264b8de6d726214a1e78f276414d53babb49ed9acfaf96203. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61ef1320-8935-4557-8dba-2b17262bf1cf.json and https://artists.proofprofile.net/proofs/artist/61ef1320-8935-4557-8dba-2b17262bf1cf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.