Robin Hogarth (born 1948) is the British record producer of two Soweto Gospel Choir Grammy Award-winning albums: Blessed in 2006 and African Spirit in 2008. References External links Robin Hogarth'
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 0xf85cd2f5db11c6becfd5d5131dcd868bb4cb12a5d9223455b01965a25b0101ad. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1568829b-4bfe-428c-a3b6-dd4b495036cf.json and https://artists.proofprofile.net/proofs/artist/1568829b-4bfe-428c-a3b6-dd4b495036cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).