Ivar (Old Norse Ívarr) is a Scandinavian masculine given name. Another variant of the name is Iver, which is more common in Norway. The Old Norse name has several possible etymologies. In North Germa
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 0xea879755f056ef4230959f74531576198f323c9c89676be9dd1c82c71f2462c1. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad2b6acb-4e81-4ff4-b5e0-50c06db16021.json and https://artists.proofprofile.net/proofs/artist/ad2b6acb-4e81-4ff4-b5e0-50c06db16021.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).