Beko ( ) is a Turkish white goods and electronics brand of Arçelik A.Ş., which is controlled by the Koç Holding conglomerate. History Beko Elektronik A.Ş. was founded by Vehbi Koç, the founder of Koç
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 0x60fd5febd752d68dc4fa00b2baf7096a71d148aa09745c56865d1cb59abb5f86. Chain 2 (Bitcoin): anchored in block 953706 (2026-06-14T23:14:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cbe1c92-4929-4234-8c90-e963a0ebe8a9.json and https://artists.proofprofile.net/proofs/artist/7cbe1c92-4929-4234-8c90-e963a0ebe8a9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.