Janek is a given name. Johnny in Polish and Slovak. Janek Schaefer (born 1970), British sound artist Janek Ambros (born 1988), American-Polish filmmaker Janek is a family name. Ivan Janek (born 1
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf56d89e528670c980519d6ac57a7fa2e9009139023ff1fd459ee173cb9cd74b. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3a45873-a576-4b93-9b54-ff1292539abb.json and https://artists.proofprofile.net/proofs/artist/d3a45873-a576-4b93-9b54-ff1292539abb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).