thumb|Mohammad Heidari Mohammad Heidari (; December 23, 1937 – August 23, 2016) was a Persian santur player and songwriter. Career After the 1979 Iranian Revolution, Mohammad Heidari left the count
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 0x6b4d5389c923d743a279aa6716e0cdb24c9c4bff166dbb3f757b84594697e70e. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f4aee9b-0975-4359-a4f0-2c382cdf2430.json and https://artists.proofprofile.net/proofs/artist/7f4aee9b-0975-4359-a4f0-2c382cdf2430.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).