Darek Oleszkiewicz (born February 20, 1963), also known as Darek Oles, is a jazz bassist, composer, arranger, and educator. Biography Oleszkiewicz was born in Wrocław, Poland, on February 20, 1963. H
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 0x4ee053a98aca58b63b7d4afa6e0120b8f502cd1451c7b09da4bfda9c5de6f513. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9634aab8-d350-4b23-ada6-f46b3df11260.json and https://artists.proofprofile.net/proofs/artist/9634aab8-d350-4b23-ada6-f46b3df11260.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).