thumb|Silvester in 1959 Victor Marlborough Silvester OBE (25 February 1900The date of the relief of Mafeking, and the probable reason for his first name. (autobiog.)14 August 1978) was an English danc
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 0xb85331d7f154d991f73562d051b0f11994e285cb4a26c30523d8e2c49a1aecdd. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/352af8dd-116a-4a21-b609-ae3d40bd977f.json and https://artists.proofprofile.net/proofs/artist/352af8dd-116a-4a21-b609-ae3d40bd977f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).