Ali Choupani (; born 26 April 1993) is an Iranian former football forward. Club career Sepahan Choupani started his career with Sepahan Academy. He promoted to first in 2012 after shining with Iran
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 0x0bb7d2b50ab925a58e9191b5fab27434563631ff0c11df1c599b6506a2e1101e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd466dbd-f179-4452-a498-3574de00b119.json and https://artists.proofprofile.net/proofs/artist/dd466dbd-f179-4452-a498-3574de00b119.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).