Cherry Wainer (March 2, 1935 – November 14, 2014) was a South African-born musician, best known as a member of Lord Rockingham's XI and a soloist on the Hammond organ.Time Out TV review, May 10, 2013;
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 0x74f810a9c6e2724084580d7dace8447f71e5dff34b7b00ae78497bc7f215ec37. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/972a1d71-e0a7-4a25-9f45-11a8a57611d4.json and https://artists.proofprofile.net/proofs/artist/972a1d71-e0a7-4a25-9f45-11a8a57611d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).