thumb|250px|Dennis Silk, the Warden from 1968 to 1991, was credited in the 20th century with transforming Radley from "a pretty ordinary place" to one of the best public schools. Radley College, forma
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 0xbf67e4fdab2ed26e1ccbb7e219036c93717617f06639f4fdfd5c1c86456f496c. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a863c6b-cecf-4b86-b7e2-aab8cd19cf2f.json and https://artists.proofprofile.net/proofs/artist/7a863c6b-cecf-4b86-b7e2-aab8cd19cf2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).