Babak Zarrin (; ) (born 30 July 1978) is an Iranian composer and songwriter.بیوگرافی بابک زرین در وبگاه رسانهٔ نوا Biography Alireza Shabani Zarrinkafsh was born in 1978 in the city of Rasht, Gui
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 0x24b2ff98d6760baa3954ae303f776913062f33b04e4a3c91c717af5c4fb8a69f. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3ac71e2-8fef-4d9b-a196-23c3c96df8b0.json and https://artists.proofprofile.net/proofs/artist/e3ac71e2-8fef-4d9b-a196-23c3c96df8b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).