Zadkiel ( , 'God is my Righteousness'), also known as Hasdiel, is an archangel in Jewish and Christian angelology. Zadkiel is the archangel of kindness, benevolence and mercy. Abraham sacrifice As
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 0x8569eb5bb9795420fa386ab869060dc0a69fb81f6c0e803ad3e261071c20c9fb. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b23a9899-a5d0-4d60-8fb1-fce9854ad0c1.json and https://artists.proofprofile.net/proofs/artist/b23a9899-a5d0-4d60-8fb1-fce9854ad0c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).