thumb|Tomáš Klus (2014) Tomáš Klus (born 15 May 1986) is a Czech musician and songwriter from the Moravian-Silesian Region of the Czech Republic. Life and career Klus was born in the industrial town
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 0xe2bad111a3f2b110eb0062f5204e7e98b02d91c3fb0ff71db6fdedbdcf59bd5a. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c151757-e325-4719-9fe9-00b0e719d1f5.json and https://artists.proofprofile.net/proofs/artist/3c151757-e325-4719-9fe9-00b0e719d1f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).