Duzakh (in Persian دوزخ) is hell in the Persian mythology. This word was dao‘aη úha- in Avestan and dušox in Middle Persian. In Zorostrianism, Hell is described as a deep well, terrifying because it
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 0x4078d65dae84e40a1022e4622bd02087958359d584f43559df9db5641ea26edc. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03210054-5180-48a9-b595-0b0e6abd63e7.json and https://artists.proofprofile.net/proofs/artist/03210054-5180-48a9-b595-0b0e6abd63e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).