Dawid is a Hebrew masculine given name, related to David, and more rarely a surname. People with the name include: Given name Dawid Abrahamowicz (1839–1926), Polish politician Dawid Abramowicz (bor
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 0x21b921be844acce4c634b6fff5e495a66d3a54b26b63b76c5f4aec46c7a5f812. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2736b5f-2823-4036-8048-2ffe6b9a9383.json and https://artists.proofprofile.net/proofs/artist/a2736b5f-2823-4036-8048-2ffe6b9a9383.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).