Dari, also known as Farsi Dari, Dari Persian, Eastern Persian, or Afghan Persian, is the variety of the Persian language spoken in Afghanistan. Dari is the Afghan government's official term for the Pe
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 0xde0dd8c0e433805c56158c78b63ecee820749cf0ef1026d7c95aecc96545d9c4. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d27820b-3f28-4bcb-90d2-cdd61126e6e1.json and https://artists.proofprofile.net/proofs/artist/8d27820b-3f28-4bcb-90d2-cdd61126e6e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).