thumb|Sritzel in 2010 Oliver Stritzel (born 9 March 1957) is a German actor. Career Born in Berlin, Stritzel appeared in the 1981 film Das Boot and the same year began a stage career, appearing wi
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 0x8f3e69ef22d56b81946fd51eba66ac6d7ebc69e32d9fb891420c5bce1fcf0789. 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/74adfadb-523d-4dbb-b8ec-ec082fd0563d.json and https://artists.proofprofile.net/proofs/artist/74adfadb-523d-4dbb-b8ec-ec082fd0563d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).