Henry Graham Greene (2 October 1904 – 3 April 1991) was an English writer and journalist regarded by many as one of the leading novelists of the 20th century. Combining literary acclaim with widespr
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 0xe4a81d1b83e7e85e5d84e194978451f23063af64343014cf4d1310e4ee4f04c0. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eee78eb7-2200-4287-8504-d69120b2db36.json and https://artists.proofprofile.net/proofs/artist/eee78eb7-2200-4287-8504-d69120b2db36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).