Iraj Rahmanpour () born in 1957, is an Iranian singer, songwriter, and writer. His opera includes written and musical works about the culture and art of the Zagros region and the music of Lori and Lak
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 0xebd7e2aee10ce441c9b5eb310ce49683a1570e2ed35a6fb730314787baaf3cbb. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cf1c4c4-4afb-496a-b7b6-080be75574f0.json and https://artists.proofprofile.net/proofs/artist/9cf1c4c4-4afb-496a-b7b6-080be75574f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).