thumb|Manuel Reuter - Opel Team Joest - Opel Calibra V6 exits The Esses, Donington Park 1994 DTM Manuel Reuter (born 6 December 1961) is a German former racing driver. Reuter has won the 24 Hours of
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 0x1d3115ea4bb5c3ba52198e09a42c51075f176914bc3de5d1fa857cc2bfcfecea. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/743acc93-d105-40ce-9c3b-21cbce97ded0.json and https://artists.proofprofile.net/proofs/artist/743acc93-d105-40ce-9c3b-21cbce97ded0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).